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Работа с ресурсами – загрузка иконки и курсора



Автор: Xavier Pacheco

{
Copyright © 1998 by Delphi 4 Developer's Guide - Xavier Pacheco and Steve Teixeira
}
program resource;
uses
  Forms,
  MainFrm in 'MainFrm.pas' {MainForm};

{$R *.RES}
{$R RESFILE2.RES} // Add the additional resource file

begin
  Application.Initialize;
  Application.CreateForm(TMainForm, MainForm);
  Application.Run;
end.
{
Copyright © 1999 by Delphi 5 Developer's Guide - Xavier Pacheco and Steve Teixeira
}

unit MainFrm;
interface
uses
  Windows, Forms, Controls, Classes, StdCtrls, ExtCtrls;

const
  crXHair = 1; // Declare a constant for the new cursor. This value
type // must be a positive number. or less than -20.

  TMainForm = class(TForm)
    imgBitmap: TImage;
    btnChemicals: TButton;
    btnClear: TButton;
    btnChangeIcon: TButton;
    btnNewCursor: TButton;
    btnOldCursor: TButton;
    btnOldIcon: TButton;
    btnAthena: TButton;
    procedure btnChemicalsClick(Sender: TObject);
    procedure btnClearClick(Sender: TObject);
    procedure btnChangeIconClick(Sender: TObject);
    procedure btnNewCursorClick(Sender: TObject);
    procedure btnOldCursorClick(Sender: TObject);
    procedure btnOldIconClick(Sender: TObject);
    procedure btnAthenaClick(Sender: TObject);
  end;

var
  MainForm: TMainForm;

implementation

{$R *.DFM}

procedure TMainForm.btnChemicalsClick(Sender: TObject);
begin
  { Load the bitmap from the resource file. The bitmap must be
    specified in all CAPS! }
  imgBitmap.Picture.Bitmap.LoadFromResourceName(hInstance, 'CHEMICAL');
end;

procedure TMainForm.btnClearClick(Sender: TObject);
begin
  imgBitmap.Picture.Assign(nil); // Clear the image
end;

procedure TMainForm.btnChangeIconClick(Sender: TObject);
begin
  { Load the icon from the resource file. The icon must be
    specified in all CAPS! }
  Application.Icon.Handle := LoadIcon(hInstance, 'SKYLINE');
end;

procedure TMainForm.btnNewCursorClick(Sender: TObject);
begin
  { Assign the new cursor to the Screen's Cursor array }
  Screen.Cursors[crXHair] := LoadCursor(hInstance, 'XHAIR');
  Screen.Cursor := crXHair; // Now change the cursor
end;

procedure TMainForm.btnOldCursorClick(Sender: TObject);
begin
  // Change back to default cursor
  Screen.Cursor := crDefault;
end;

procedure TMainForm.btnOldIconClick(Sender: TObject);
begin
  { Load the icon from the resource file. The icon must be
    specified in all CAPS! }
  Application.Icon.Handle := LoadIcon(hInstance, 'DELPHI');
end;

procedure TMainForm.btnAthenaClick(Sender: TObject);
begin
  { Load the bitmap from the resource file. The bitmap must be
    specified in all CAPS! }
  imgBitmap.Picture.Bitmap.LoadFromResourceName(hInstance, 'ATHENA');
end;

end.
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