Block Popup Messagebox on alt+spacebar

[jj2007]

Good question. Return 0 works equally good
Probably the OS doesn't check the return value.

[sinsi]

A window proc should return 0 if it handles the message, otherwise DefWindowProc needs to be called.

A window proc should return whatever the WM_x return value says, e.g. WM_CTLCOLORSTATIC returns a brush, whereas WM_CREATE expects 0 to continue.

[Ryan]

Thanks for the clarification sinsi.  I've updated my post :)