Disable Close Button at Runtime

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   I'm trying to disable the Close Button of the window frame in runtime using the following code:

void EnableCloseButton(BOOL bEnable)

{
UINT menuf = bEnable ? (MF_BYCOMMAND) : (MF_BYCOMMAND | 

MF_GRAYED | MF_DISABLED);

CMenu* pSM = GetSystemMenu(FALSE);

if(pSM)

{
pSM->EnableMenuItem(SC_CLOSE, menuf);

}

}

I call this function on a button click. It works for a dialog based test application. In my application project based on CXTPDialogBase<CXTResizeDialog> the button is not disabled. When I maximize it the new style i applied to the button.

Is there a workaround for this problem?
Thanks,

Timo

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pijnappel Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 30 November 2007 Status: Offline Points: 13	Post Options Post Reply Quote pijnappel Report Post Thanks(0) Quote Reply Topic: Disable Close Button at Runtime Posted: 22 January 2008 at 10:32am
	I'm trying to disable the Close Button of the window frame in runtime using the following code: void EnableCloseButton(BOOL bEnable) { UINT menuf = bEnable ? (MF_BYCOMMAND) : (MF_BYCOMMAND \| MF_GRAYED \| MF_DISABLED); CMenu* pSM = GetSystemMenu(FALSE); if(pSM) { pSM->EnableMenuItem(SC_CLOSE, menuf); } } I call this function on a button click. It works for a dialog based test application. In my application project based on CXTPDialogBase<CXTResizeDialog> the button is not disabled. When I maximize it the new style i applied to the button. Is there a workaround for this problem? Thanks, Timo

Oleg Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 21 May 2003 Location: United States Status: Offline Points: 11234	Post Options Post Reply Quote Oleg Report Post Thanks(0) Quote Reply Posted: 22 January 2008 at 3:40pm
	Hi, Try call SetWindowPos(0, 0, 0, 0, 0, SWP_NOMOVE \| SWP_NOSIZE \| SWP_NOZORDER \| SWP_FRAMECHANGED \| SWP_NOACTIVATE \| SWP_DRAWFRAME); after.
	Oleg, Support Team CODEJOCK SOFTWARE SOLUTIONS

pijnappel Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 30 November 2007 Status: Offline Points: 13	Post Options Post Reply Quote pijnappel Report Post Thanks(0) Quote Reply Posted: 23 January 2008 at 2:10am
	That didn't work, but based on your answer I found the solution myself. I had to change the Window Style and then change it back to the old state to refresh the buttons. I chose the maximize button: AfxGetMainWnd()->ModifyStyle(WS_MAXIMIZEBOX, 0, SWP_FRAMECHANGED); AfxGetMainWnd()->ModifyStyle(0, WS_MAXIMIZEBOX, SWP_FRAMECHANGED); Regards Timo