Win32 API - Group Box Control

Hi people,
I was just wondering how do you change the background text colour (on the caption) on a group box control? aswell as the font and text colour itself.

This is how I create a group box:

Code:

CreateWindow("BUTTON", "Foobar...", WS_CHILD | WS_VISIBLE | BS_GROUPBOX,
             10,            /* X Position */
             10,            /* Y Position */
             250,           /* X Width */
             250,           /* Y Height */
             hwnd, (HMENU) -1, hInstance, NULL);

and this is how I catch WM_CTLCOLORBTN:

Code:

case WM_CTLCOLORBTN:
    SetTextColor((HDC)wParam, RGB(255, 0, 0));
    SetBkColor((HDC)wParam, RGB(0, 0, 0));
    SetBkMode((HDC)wParam, TRANSPARENT); 
    return(LRESULT) GetStockObject(NULL_BRUSH);

Any help would be appreciated,
Cheers

Contrary to msdn documentation the WM_CTLCOLORBTN message is useless. The colours of some button types can be modified by handling the parent's WM_CTLCOLORSTATIC message; for groupboxes only the text colour can be changed using this approach.

To change fonts send a WM_SETFONT message to the window in question.

Since a groupbox is transparent it usually takes on the colour of what's underneath, usually the parent window. It may, therefore, be possible to put a static control, for example, beneath it and change its colour, or to paint the parent window's background beneath the groupbox. As far as I know there is no direct way of changing the background colour of a groupbox.

For complete control over how a groupbox looks you could make it owner-drawn.

msdn: Button .Controls

Thanks for the reply...WM_CTLCOLORSTATIC worked first time.

Declared at the beginning of the message handler:

Code:

HBRUSH hBackground = CreateSolidBrush(RGB(0, 0, 0));

Code:

case WM_CTLCOLORSTATIC:
{
    HDC hdc = (HDC)wParam;
    SetBkMode(hdc, TRANSPARENT);
    SetTextColor(hdc, RGB(255, 255, 255));
    return (LONG) hBackground;
}