Wm_paint

[nuklus]

Can I redraw a entire client area of window at processing of WM_PAINT? It is necessary for me to redraw all completely, and not just a part of a window which needs to be updated. Is there something except InvalidateRect () and RedrawWindow ()?

[rsmemphis]

If in your program the need to redraw everything arises, you need to call
InvalidateRect(HWND hWnd,RECT rect,BOOL erasebkgnd);

The second two can be set to 0/false if you want to redraw everything.

The problem is - when you already are getting the WM_PAINT message, windows clips everything that has not been included in the InvalidateRect call (even if the system issues it), and you cannot redraw everything.

Edit: I did not answer your question clearly: No, there is nothing you can do about it. Unless you call InvalidateRect yourself, windows will clip your hDC automatically.