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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Memo1: TMemo;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Déclarations privées }
public
{ Déclarations publiques }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure ArrondirControl(WinControl : TWinControl; Diametre : Integer);
var
Region : HRGN;
begin
with WinControl.BoundsRect do
begin
// Apparemment les coordonnées sont relatives au contrôle
Region := CreateRoundRectRgn(0,0,Right-Left,Bottom-Top,Diametre,Diametre);
end;
//Application de la region au handle du contrôle
SetWindowRgn(WinControl.Handle, Region, true);
DeleteObject(Region); //Suppresion de la region.
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
ArrondirControl(Memo1,20);
end;
end. |
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