Won't draw on my form

Vic Buckling

CBuilder Developer

Sun, 05 May 2002 03:00:00 GMT

Won't draw on my form

Hi,
I'm trying to test this in my form but
it doesn't draw anything.
I need to later port this to plain C (Borland C++).

Am I missing something?

void __fastcall TForm1::Button1Click(TObject *Sender)
{
HWND hWnd = Application->Handle;
HDC hDC = GetDC(hWnd);

Arc(hDC,
50, 50, 150, 150,
150, 50,
50, 50);

MoveToEx(hDC, 0, 20, NULL);
LineTo(hDC, 100, 20);
ReleaseDC( hWnd, hDC);

Quote

}

Armand

CBuilder Developer

Sun, 05 May 2002 03:00:00 GMT

Re:Won't draw on my form

Quote

> HWND hWnd = Application->Handle;

Change to:

HWND hWnd = GetForegroundWindow();

Armando

Patrick Bertho

CBuilder Developer

Sun, 05 May 2002 03:00:00 GMT

Re:Won't draw on my form

Hi !

<Vic Bucklings> a crit dans le message : 80tj8f$5t...@forums.borland.com...

Quote

> Hi,
> I'm trying to test this in my form but
> it doesn't draw anything.
> I need to later port this to plain C (Borland C++).

> Am I missing something?

Why don't you use the Canvas property of your form ?

I think it will be easier.

Zylwee.

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