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625 lines
19 KiB
ObjectPascal
625 lines
19 KiB
ObjectPascal
{
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Double Commander
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-------------------------------------------------------------------------
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This unit contains realization of Dialog API functions.
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Copyright (C) 2008 Koblov Alexander (Alexx2000@mail.ru)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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}
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unit fDialogBox;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, StdCtrls,
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Types, DialogAPI;
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type
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{ TDialogBox }
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TDialogBox = class(TForm)
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DialogButton: TButton;
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DialogComboBox: TComboBox;
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DialogGroupBox: TGroupBox;
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DialogLabel: TLabel;
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DialogListBox: TListBox;
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// Dialog events
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procedure DialogBoxShow(Sender: TObject);
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// Button events
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procedure ButtonClick(Sender: TObject);
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procedure ButtonEnter(Sender: TObject);
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procedure ButtonExit(Sender: TObject);
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procedure ButtonKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
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procedure ButtonKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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// ComboBox events
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procedure ComboBoxClick(Sender: TObject);
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procedure ComboBoxDblClick(Sender: TObject);
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procedure ComboBoxChange(Sender: TObject);
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procedure ComboBoxEnter(Sender: TObject);
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procedure ComboBoxExit(Sender: TObject);
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procedure ComboBoxKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
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procedure ComboBoxKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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// Edit events
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procedure EditClick(Sender: TObject);
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procedure EditDblClick(Sender: TObject);
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procedure EditChange(Sender: TObject);
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procedure EditEnter(Sender: TObject);
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procedure EditExit(Sender: TObject);
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procedure EditKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
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procedure EditKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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// ListBox events
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procedure ListBoxClick(Sender: TObject);
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procedure ListBoxDblClick(Sender: TObject);
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procedure ListBoxSelectionChange(Sender: TObject; User: boolean);
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procedure ListBoxEnter(Sender: TObject);
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procedure ListBoxExit(Sender: TObject);
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procedure ListBoxKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
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procedure ListBoxKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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private
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fDlgProc: TDlgProc;
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public
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{ public declarations }
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end;
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function InputBox(Caption, Prompt, DefaultText : PWideChar): PWideChar;stdcall;
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function MessageBox(Text, Caption: PWideChar; Flags: Longint): Integer;stdcall;
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function DialogBox(DlgData: PWideChar; DlgProc: TDlgProc): PtrUInt;stdcall;
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function DialogBoxEx(lfmFileName: PWideChar; DlgProc: TDlgProc): PtrUInt;stdcall;
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function SendDlgMsg(pDlg: PtrUInt; DlgItemName: PChar; Msg, wParam, lParam: PtrInt): PtrInt; stdcall;
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implementation
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function InputBox(Caption, Prompt, DefaultText: PWideChar): PWideChar;stdcall;
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var
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sCaption,
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sPrompt,
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sDefaultText: UTF8String;
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wResult: WideString;
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begin
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sCaption:= UTF8Encode(Caption);
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sPrompt:= UTF8Encode(Prompt);
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sDefaultText:= UTF8Encode(DefaultText);
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wResult:= Dialogs.InputBox(sCaption, sPrompt, sDefaultText);
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Result:= PWideChar(UTF8Decode(wResult));
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end;
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function MessageBox(Text, Caption: PWideChar; Flags: Longint): Integer;stdcall;
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var
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sText,
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sCaption: String;
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begin
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sText:= UTF8Encode(Text);
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sCaption:= UTF8Encode(Caption);
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Result:= Application.MessageBox(PChar(sText), PChar(sCaption), Flags);
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end;
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function DialogBox(DlgData: PWideChar; DlgProc: TDlgProc): PtrUInt;stdcall;
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var
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DataString: UTF8String;
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LFMStream,
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BinStream: TStringStream;
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Dialog: TDialogBox;
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begin
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try
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DataString:= UTF8Encode(DlgData);
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LFMStream:= TStringStream.Create(DataString);
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BinStream:= TStringStream.Create('');
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LRSObjectTextToBinary(LFMStream, BinStream);
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LazarusResources.Add('TDialogBox','FORMDATA', BinStream.DataString);
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Dialog:= TDialogBox.Create(nil);
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with Dialog do
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begin
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fDlgProc:= DlgProc;
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ShowModal;
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end;
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Result:= PtrUInt(Pointer(Dialog));
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finally
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FreeAndNil(LFMStream);
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FreeAndNil(BinStream);
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end;
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end;
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function DialogBoxEx(lfmFileName: PWideChar; DlgProc: TDlgProc): PtrUInt;stdcall;
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var
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lfmStringList: TStringList;
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wDlgData: WideString;
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begin
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try
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lfmStringList:= TStringList.Create;
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lfmStringList.LoadFromFile(lfmFileName);
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wDlgData:= lfmStringList.Text;
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Result:= DialogBox(PWideChar(wDlgData), DlgProc);
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finally
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FreeAndNil(lfmStringList);
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end;
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end;
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function SendDlgMsg(pDlg: PtrUInt; DlgItemName: PChar; Msg, wParam, lParam: PtrInt): PtrInt;stdcall;
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var
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DialogBox: TDialogBox;
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Control: TControl;
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sText: String;
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wText: WideString;
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I: Integer;
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Rect: TRect;
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Key: Word;
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begin
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DialogBox:= TDialogBox(Pointer(pDlg));
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// find component by name
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for I:= 0 to DialogBox.ComponentCount - 1 do
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begin
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Control:= TControl(DialogBox.Components[I]);
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if CompareText(Control.Name,DlgItemName) = 0 then Break;
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end;
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// process message
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case Msg of
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DM_CLOSE:
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begin
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DialogBox.Close;
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end;
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DM_ENABLE:
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begin
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Result:= PtrInt(Control.Enabled);
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if wParam <> -1 then
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Control.Enabled:= Boolean(wParam);
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end;
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DM_GETCHECK:
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begin
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if Control is TCheckBox then
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Result:= PtrInt((Control as TCheckBox).State);
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if Control is TRadioButton then
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Result := PtrInt((Control as TRadioButton).Checked);
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end;
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DM_GETDLGBOUNDS:
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begin
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Rect.Left:= DialogBox.Left;
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Rect.Top:= DialogBox.Top;
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Rect.Right:= DialogBox.Left + DialogBox.Width;
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Rect.Bottom:= DialogBox.Top + DialogBox.Height;
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Result:= PtrInt(@Rect);
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end;
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DM_GETDLGDATA:
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begin
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Result:= DialogBox.Tag;
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end;
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DM_GETDROPPEDDOWN:
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begin
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if Control is TComboBox then
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Result:= PtrInt((Control as TComboBox).DroppedDown);
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end;
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DM_GETITEMBOUNDS:
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begin
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Rect.Left:= Control.Left;
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Rect.Top:= Control.Top;
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Rect.Right:= Control.Left + Control.Width;
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Rect.Bottom:= Control.Top + Control.Height;
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Result:= PtrInt(@Rect);
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end;
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DM_GETITEMDATA:
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begin
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Result:= Control.Tag;
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end;
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DM_LISTADD:
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begin
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sText:= UTF8Encode(PChar(wParam));
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if Control is TComboBox then
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(Control as TComboBox).Items.AddObject(sText, TObject(Pointer(lParam)));
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if Control is TListBox then
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(Control as TListBox).Items.AddObject(sText, TObject(Pointer(lParam)));
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end;
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DM_LISTADDSTR:
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begin
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sText:= UTF8Encode(PChar(wParam));
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if Control is TComboBox then
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(Control as TComboBox).Items.Add(sText);
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if Control is TListBox then
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(Control as TListBox).Items.Add(sText);
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end;
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DM_LISTDELETE:
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begin
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if Control is TComboBox then
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(Control as TComboBox).Items.Delete(wParam);
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if Control is TListBox then
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(Control as TListBox).Items.Delete(wParam);
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end;
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DM_LISTINDEXOF:
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begin
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sText:= UTF8Encode(PWideChar(lParam));
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if Control is TComboBox then
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Result:= (Control as TComboBox).Items.IndexOf(sText);
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if Control is TListBox then
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Result:= (Control as TListBox).Items.IndexOf(sText);
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end;
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DM_LISTINSERT:
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begin
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sText:= UTF8Encode(PWideChar(lParam));
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if Control is TComboBox then
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(Control as TComboBox).Items.Insert(wParam, sText);
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if Control is TListBox then
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(Control as TListBox).Items.Insert(wParam, sText);
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end;
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DM_LISTGETCOUNT:
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begin
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if Control is TComboBox then
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Result:= (Control as TComboBox).Items.Count;
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if Control is TListBox then
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Result:= (Control as TListBox).Items.Count;
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end;
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DM_LISTGETDATA:
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begin
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if Control is TComboBox then
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Result:= PtrInt((Control as TComboBox).Items.Objects[wParam]);
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if Control is TListBox then
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Result:= PtrInt((Control as TListBox).Items.Objects[wParam]);
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end;
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DM_LISTGETITEM:
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begin
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if Control is TComboBox then
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sText:= (Control as TComboBox).Items[wParam];
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if Control is TListBox then
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sText:= (Control as TListBox).Items[wParam];
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wText:= UTF8Decode(sText);
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Result:= PtrInt(PWideChar(wText));
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end;
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DM_LISTGETITEMINDEX:
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begin
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Result:= -1;
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if Control is TComboBox then
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Result:= (Control as TComboBox).ItemIndex;
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if Control is TListBox then
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Result:= (Control as TListBox).ItemIndex;
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end;
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DM_LISTSETITEMINDEX:
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begin
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if Control is TComboBox then
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(Control as TComboBox).ItemIndex:= wParam;
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if Control is TListBox then
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(Control as TListBox).ItemIndex:= wParam;
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end;
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DM_LISTUPDATE :
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begin
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sText:= UTF8Encode(PWideChar(lParam));
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if Control is TComboBox then
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(Control as TComboBox).Items[wParam]:= sText;
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if Control is TListBox then
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(Control as TListBox).Items[wParam]:= sText;
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end;
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DM_GETTEXT:
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begin
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if Control is TButton then
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sText:= (Control as TButton).Caption;
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if Control is TComboBox then
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sText:= (Control as TComboBox).Text;
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if Control is TEdit then
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sText:= (Control as TEdit).Text;
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if Control is TGroupBox then
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sText:= (Control as TGroupBox).Caption;
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if Control is TLabel then
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sText:= (Control as TLabel).Caption;
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wText:= UTF8Decode(sText);
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Result:= PtrInt(PWideChar(wText));
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end;
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DM_KEYDOWN:
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begin
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Key:= wParam;
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DialogBox.KeyDown(Key, GetKeyShiftState);
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Result:= Key;
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end;
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DM_KEYUP:
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begin
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Key:= wParam;
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DialogBox.KeyUp(Key, GetKeyShiftState);
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Result:= Key;
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end;
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DM_REDRAW:
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begin
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DialogBox.Repaint;
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end;
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DM_SETCHECK:
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begin
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if Control is TCheckBox then
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begin
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Result:= PtrInt((Control as TCheckBox).State);
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(Control as TCheckBox).State:= TCheckBoxState(wParam)
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end;
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if Control is TRadioButton then
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begin
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Result := PtrInt((Control as TRadioButton).Checked);
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(Control as TRadioButton).Checked:= Boolean(wParam);
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end;
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end;
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DM_LISTSETDATA:
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begin
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if Control is TComboBox then
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(Control as TComboBox).Items.Objects[wParam]:= TObject(Pointer(lParam));
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if Control is TListBox then
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(Control as TListBox).Items.Objects[wParam]:= TObject(Pointer(lParam));
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end;
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DM_SETDLGBOUNDS:
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begin
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Rect:= PRect(wParam)^;
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DialogBox.Left:= Rect.Left;
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DialogBox.Top:= Rect.Top;
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DialogBox.Width:= Rect.Right - Rect.Left;
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DialogBox.Height:= Rect.Bottom - Rect.Top;
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end;
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DM_SETDLGDATA:
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begin
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Result:= DialogBox.Tag;
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DialogBox.Tag:= wParam;
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end;
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DM_SETDROPPEDDOWN:
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begin
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if Control is TComboBox then
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(Control as TComboBox).DroppedDown:= Boolean(wParam);
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end;
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DM_SETFOCUS:
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begin
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if Control.Visible then
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(Control as TWinControl).SetFocus;
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end;
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DM_SETITEMBOUNDS:
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begin
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Rect:= PRect(wParam)^;
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Control.Left:= Rect.Left;
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Control.Top:= Rect.Top;
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Control.Width:= Rect.Right - Rect.Left;
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Control.Height:= Rect.Bottom - Rect.Top;
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end;
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DM_SETITEMDATA:
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begin
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Control.Tag:= wParam;
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end;
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DM_SETMAXTEXTLENGTH:
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begin
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Result:= -1;
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if Control is TComboBox then
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begin
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Result:= (Control as TComboBox).MaxLength;
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(Control as TComboBox).MaxLength:= wParam;
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end;
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if Control is TEdit then
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begin
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Result:= (Control as TEdit).MaxLength;
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(Control as TEdit).MaxLength:= wParam;
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end;
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end;
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DM_SETTEXT:
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begin
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sText:= UTF8Encode(PWideChar(wParam));
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if Control is TButton then
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(Control as TButton).Caption:= sText;
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if Control is TComboBox then
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(Control as TComboBox).Text:= sText;
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if Control is TEdit then
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(Control as TEdit).Text:= sText;
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if Control is TGroupBox then
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(Control as TGroupBox).Caption:= sText;
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if Control is TLabel then
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(Control as TLabel).Caption:= sText;
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end;
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DM_SHOWDIALOG:
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begin
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if wParam = 0 then
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DialogBox.Hide;
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if wParam = 1 then
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DialogBox.Show;
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end;
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DM_SHOWITEM:
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begin
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Result:= PtrInt(Control.Visible);
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if wParam <> -1 then
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Control.Visible:= Boolean(wParam);
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end;
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end;
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end;
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{ TDialog }
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procedure TDialogBox.DialogBoxShow(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_INITDIALOG,0,0);
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end;
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procedure TDialogBox.ButtonClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CLICK,0,0);
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end;
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procedure TDialogBox.ButtonEnter(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_GOTFOCUS,0,0);
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end;
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procedure TDialogBox.ButtonExit(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KILLFOCUS,0,0);
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end;
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procedure TDialogBox.ButtonKeyDown(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYDOWN,Key,0);
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end;
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procedure TDialogBox.ButtonKeyUp(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYUP,Key,0);
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end;
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procedure TDialogBox.ComboBoxClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CLICK,PtrInt((Sender as TComboBox).ItemIndex),0);
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end;
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procedure TDialogBox.ComboBoxDblClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_DBLCLICK,PtrInt((Sender as TComboBox).ItemIndex),0);
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end;
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procedure TDialogBox.ComboBoxChange(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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begin
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CHANGE, PtrInt((Sender as TComboBox).ItemIndex),0);
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end;
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end;
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procedure TDialogBox.ComboBoxEnter(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_GOTFOCUS,0,0);
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end;
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procedure TDialogBox.ComboBoxExit(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KILLFOCUS,0,0);
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end;
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procedure TDialogBox.ComboBoxKeyDown(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYDOWN,Key,0);
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end;
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procedure TDialogBox.ComboBoxKeyUp(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYUP,Key,0);
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end;
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procedure TDialogBox.EditClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CLICK,0,0);
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end;
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procedure TDialogBox.EditDblClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_DBLCLICK,0,0);
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end;
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procedure TDialogBox.EditChange(Sender: TObject);
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var
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wText: WideString;
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begin
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if Assigned(fDlgProc) then
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begin
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wText:= UTF8Decode((Sender as TEdit).Text);
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CHANGE, PtrInt(PWideChar(wText)),0);
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end;
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end;
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procedure TDialogBox.EditEnter(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_GOTFOCUS,0,0);
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end;
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procedure TDialogBox.EditExit(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KILLFOCUS,0,0);
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end;
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procedure TDialogBox.EditKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYDOWN,Key,0);
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end;
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procedure TDialogBox.EditKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYUP,Key,0);
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end;
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procedure TDialogBox.ListBoxClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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begin
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CLICK, PtrInt((Sender as TListBox).ItemIndex),0);
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end;
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end;
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procedure TDialogBox.ListBoxDblClick(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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begin
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_DBLCLICK, PtrInt((Sender as TListBox).ItemIndex),0);
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end;
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end;
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procedure TDialogBox.ListBoxSelectionChange(Sender: TObject; User: boolean);
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begin
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if Assigned(fDlgProc) then
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begin
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_CHANGE, PtrInt((Sender as TListBox).ItemIndex),0);
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end;
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end;
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procedure TDialogBox.ListBoxEnter(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_GOTFOCUS,0,0);
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end;
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procedure TDialogBox.ListBoxExit(Sender: TObject);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KILLFOCUS,0,0);
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end;
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procedure TDialogBox.ListBoxKeyDown(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYDOWN,Key,0);
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end;
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procedure TDialogBox.ListBoxKeyUp(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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begin
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if Assigned(fDlgProc) then
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fDlgProc(PtrUInt(Pointer(Self)), PChar((Sender as TControl).Name), DN_KEYUP,Key,0);
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end;
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initialization
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{.$I fdialogbox.lrs}
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end.
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