Why does this code not work in my dialog application:

CMenu *pMenu = ::AfxGetMainWnd()->GetSystemMenu(false);
pMenu->EnableMenuItem(SC_CLOSE,MF_BYCOMMAND | MF_GRAYED);
pMenu->EnableMenuItem(SC_MINIMIZE,MF_BYCOMMAND|MF_GRAYED );
pMenu->EnableMenuItem(SC_MAXIMIZE,MF_BYCOMMAND |MF_GRAYED);

It only disables and greys out the close button and not the minimize or
maximize buttons. I had to use instead:

SetWindowLong(m_hWnd,GWL_STYLE,GetWindowLong(m_hWn d ,GWL_STYLE)
&(~WS_MINIMIZEBOX ) );
::ValidateRect(NULL,NULL);

which removes them and does not grey them out as I would like. It is a
solution, but not the one I really wanted.


Z.K.

Z.K. wrote:
> Why does this code not work in my dialog application:
>
> CMenu *pMenu = ::AfxGetMainWnd()->GetSystemMenu(false);
> pMenu->EnableMenuItem(SC_CLOSE,MF_BYCOMMAND | MF_GRAYED);
> pMenu->EnableMenuItem(SC_MINIMIZE,MF_BYCOMMAND|MF_GRAYED );
> pMenu->EnableMenuItem(SC_MAXIMIZE,MF_BYCOMMAND |MF_GRAYED);
>
> It only disables and greys out the close button and not the minimize or
> maximize buttons. I had to use instead:

I have not tried to handle system menu messages, but this should get you
started:
http://www.philosophicalgeek.com/2002/08/14/47/

from a google search:
override "system menu" ui handler mfc


Best, Dan.