Mega Code Archive
How to draw a color outline around TForm
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Title: How to draw a color outline around TForm
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;
type
TForm1 = class(TForm)
private
{ Private-Deklarationen }
procedure WMNCPaint(var Msg: TWMNCPaint); message WM_NCPAINT;
public
{ Public-Deklarationen }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.WMNCPaint(var Msg: TWMNCPaint);
var
dc: hDc;
Pen: hPen;
OldPen: hPen;
OldBrush: hBrush;
begin
inherited;
dc := GetWindowDC(Handle);
Msg.Result := 1;
//Change the RGB value to change the color
Pen := CreatePen(PS_SOLID, 1, RGB(255, 0, 0));
OldPen := SelectObject(dc, Pen);
OldBrush := SelectObject(dc, GetStockObject(NULL_BRUSH));
Rectangle(dc, 0, 0, Form1.Width, Form1.Height);
SelectObject(dc, OldBrush);
SelectObject(dc, OldPen);
DeleteObject(Pen);
ReleaseDC(Handle, Canvas.Handle);
end;
end.
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