原码如下:
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Buttons;type
TForm1 = class(TForm)
BitBtn1: TBitBtn;
procedure FormCreate(Sender: TObject);
procedure BitBtn1Click(Sender: TObject); { Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
var
bitmap:Tbitmap;
bitmaprect:Trect;
begin
bitmap:=Tbitmap.Create;
bitmap.Transparent:=true;
bitmap.LoadFromFile('e:\msa.bmp');
bitmaprect:=rect(0,0,bitmap.Width,bitmap.Height);
canvas.Brush.Color:=clbtnface;
canvas.BrushCopy(rect(20,50,20+bitmap.Width,50+bitmap.Height),bitmap,bitmaprect,clwhite);
end;procedure TForm1.BitBtn1Click(Sender: TObject);
begin
form1.close;
end;end.
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Buttons;type
TForm1 = class(TForm)
BitBtn1: TBitBtn;
procedure FormCreate(Sender: TObject);
procedure BitBtn1Click(Sender: TObject); { Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
var
bitmap:Tbitmap;
bitmaprect:Trect;
begin
bitmap:=Tbitmap.Create;
bitmap.Transparent:=true;
bitmap.LoadFromFile('e:\msa.bmp');
bitmaprect:=rect(0,0,bitmap.Width,bitmap.Height);
canvas.Brush.Color:=clbtnface;
canvas.BrushCopy(rect(20,50,20+bitmap.Width,50+bitmap.Height),bitmap,bitmaprect,clwhite);
end;procedure TForm1.BitBtn1Click(Sender: TObject);
begin
form1.close;
end;end.
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