Thread: Changing the color of controls

I was wondering which message do i have to handle in order to change the background color of a button/groupbox.

Ive already tried:

Code:

		case WM_CTLCOLORBTN:
		{
			HBRUSH hBrush = CreateSolidBrush(RGB(0, 255, 0));
			return (long)hBrush;
		break;
		}

It doesnt work, ive tried it using a button and a groupbox, and on both tries none of them has worked.