How to resize window using WinAPI

Question

I'm want to resize a window using WinAPI. I use a WinAPI function:

SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, uint uFlags);

The window is resized, but its content is not redrawn. If I resize this window using the mouse, the content redraws. How to resize window using WinAPI with content redrawing?

Answer 1

Make sure you don't specify SWP_NOREDRAW in the uFlags parameter. If it's not set and the window still doesn't redraw, call UpdateWindow after calling SetWindowPos.