Enable/Disable Frame Buttons :: MFC

Hi.

In both windows and dialog boxes, there are buttons on the upper right corner of the frame to minimize, maximize, and/or close window. Is it possible to enable or disable one or more of those buttons? For example, I would like to disable the maximize option during a certain time and then reenable it.

Thanks,
Kuphryn

Sure......but you need to alter the params sent to CreateWindow....

Or as you do MFC, have a look at the PreCreateWindow() handler....

You should be able to get away with something like this

Code:

---

BOOL CMyWindow::PreCreateWindow(CREATESTRUCT &cs){

if(!CFrameWnd::PreCreateWindow(cs))
return FALSE;

cs.style &= ~WS_MAXIMIZEBOX;

cs.lpszClass = AfxRegisterWndClass(NULL);
return TRUE;

}

---

Havent tested it though...look it up :)

Thanks.

I was thinking more of a way to enable/disable them in real-time.

Kuphryn

Hmm....I dont see why you would want to do this.......but hell its your proggy...

I'm not sure there's an easy way to do it.......Maybe you could create a window without the max & min buttons and then create & animate them yourself......you're window is sent WM_NCLBUTTONDOWN , WM_NCLBUTTONUP and WM_NCPAINT messages to allow you to work in the title bar....it would be a b*tch of a job though :)

Sorry I cant offer a better idea...there may be one, but I'm not sure...maybe you could find a handle to these buttons and control them from there.......spy++ doesnt seem to want to know them so :confused:

Thanks.

Sonu Kapoor posted the solution to catch WM_CLOSE message and add whatever code you wanted before the window and/or dialog box close.

Kuphryn

Just a guess

Try enable or disable SC_MINIMIZE, SC_MAXIMIZE commands in the system menu of the window. These are linked to the buttons I think.

Hey,

Nishant S of CodeProjects posted a key solution that opens up whole new horizon of menu controls.

http://www.codeproject.com/script/c...7289#xx217289xx

Kuphryn