Disabling Window Resizing

[Tom Backton]

How do I prevent the user from resizing the window? Does ignoring WM_SIZE do that or I need to change some settings?

[Duthomhas]

Respond to the WM_GETMINMAXINFO message.
http://www.google.com/search?btnI=1&q=msdn+wm_getminmaxinfo

A window must have the WS_THICKFRAME or WS_CAPTION style to receive WM_GETMINMAXINFO. A window with the WS_THICKFRAME style receives this message during the window-creation process, as well as when it is being moved or sized.

_{Win32 Programmer's Reference, "Size and Position Messages"}

If you do allow resizing, you can moderate it further by processing the WM_SIZING message.

This all assumes your window has the WS_THICKFRAME style attribute (and does not have the WS_EX_TOOLWINDOW extended style attribute).

Hope this helps.

[writetonsharma]

use a combination of this during CreateWindow()

WS_OVERLAPPED | WS_MINIMIZEBOX | WS_SYSMENU

[Hammurabi]

Normally you would just create a non-resizeable window, as sharma has suggested. If you don't want to do that for some reason, then you need something more complicated as Duoas has suggested.

[Tom Backton]

I read an example which includes processing the WM_SIZE message, but WS_THICKFRAME and WS_CAPTION are not used! And the window CAN be resized easily by dragging the edges using the mouse. So resizing is allowed. Minimizing and maximizing work too.

1. If I use fullscreen mode (allowing switching to windowed mode and back to fullscreen anytime), will disabling window resizing be a problem or it has nothing to do with this?

2. Which styles DO disable window resizing? (both by dragging and by minimizing and maximizing)

3. Can I change the window size in the code (after the window has been created)? If yes, how?

[Tom Backton]

I found the problem! Thanks for your help! I used the style WS_OVERLAPPEDWINDOW, which includes minimizing , maximizing and resizing...now I understand. :)