Toolbar background error
marcus at jet.franken.de
Fri Aug 17 14:49:06 CDT 2001
On Fri, Aug 17, 2001 at 07:53:46PM +0000, Gerard Patel wrote:
> At 02:33 PM 17/08/2001 GMT, you wrote:
> >So how does an application modify the location of the client rectangle
> >after it has been created?
> By changing rgrc when responding to WM_NCCALCSIZE.
> It seems that it is only possible to erase properly the 'custom' nonclient
> area by using GetWindowDC... So :
> --- defwnd.c.orig Sat Aug 11 10:23:18 2001
> +++ defwnd.c Fri Aug 17 19:47:17 2001
> @@ -462,8 +462,12 @@
> if (!hbr) return 0;
> /* GetClientRect used to be GetClipBox, but it is not what
> - * Windows does, and it breaks badly with CS_PARENTDC */
> - GetClientRect( wndPtr->hwndSelf, &rect );
> + * Windows does, and it breaks badly with CS_PARENTDC
> + * GetClientRect breaks too when we are called with a window
> + * DC (!!) - what next ? */
> + rect.left = rect.top = 0;
> + rect.right = wndPtr->rectWindow.right - wndPtr->rectWindow.left;
> + rect.bottom = wndPtr->rectWindow.bottom - wndPtr->rectWindow.top;
> DPtoLP( hdc, (LPPOINT)&rect, 2 );
> FillRect( hdc, &rect, hbr );
> return 1;
> What do you think ?
I suggest reading the Corel CVS for this part of the code.
They rewrote this part like _5_ times.
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