?
Solved

Disable the [X] "close" in an window

Posted on 1999-01-26
2
Medium Priority
?
240 Views
Last Modified: 2008-03-10
I have made a window like this:
hwndBMP1 = CreateWindow ("edit", NULL, WS_CHILD| WS_CLIPSIBLINGS |WS_VISIBLE | ES_LEFT | WS_OVERLAPPEDWINDOW | SS_BITMAP | ES_AUTOHSCROLL | ES_AUTOVSCROLL, 140, 0, 450, 200, hwnd, (HMENU) BMP1ID,((LPCREATESTRUCT) lParam) -> hInstance, NULL) ;

>How do I disable the "[X]" close in the sysmenu<, or can
i do it like this:
WM_CLOSE : MessageBox(hwnd,"Cant close that window");
0
Comment
Question by:win32
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 3

Accepted Solution

by:
_Scotch_ earned 0 total points
ID: 1185223
Dont answer a WM_CLOSE message with a "You cant do that"... As a
user the first thing I'd think is "Why give me a knob if I cant
play with it" :)

Disable it by handling the WM_SHOWWINDOW message and:
        CMenu *pSystemMenu = GetSystemMenu(FALSE);
      CString  ItemText;
      pSystemMenu->GetMenuString(SC_CLOSE, ItemText, MF_BYCOMMAND);
      pSystemMenu->ModifyMenu(SC_CLOSE, MF_BYCOMMAND|MF_STRING|MF_GRAYED,
                                        SC_CLOSE, ItemText);


This has the added benefit of disabling the "close" menu pulldown
under the doodad (er, system menu) in the upper lefthand corner.

0
 
LVL 10

Expert Comment

by:viktornet
ID: 1185224
here is how,...

void SetCloseState(BOOL bEnabled)
{
  CMenu* hSysMenu;
  hSysMenu = GetSystemMenu(FALSE);
  if (hSysMenu != 0) {
    if(bEnabled)
      EnableMenuItem(hSysMenu, SC_CLOSE, MF_ENABLED);
    else
      EnableMenuItem(hSysMenu, SC_CLOSE, MF_DISABLED | MF_GRAYED);
  }
}

YOu can call it like this,,,,

SetCloseState(TRUE); //Enable the [X] button
SetCloseState(FALSE);  //Disable the [X] button

Hope this helps...

-Viktor
--Ivanov
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Unlike C#, C++ doesn't have native support for sealing classes (so they cannot be sub-classed). At the cost of a virtual base class pointer it is possible to implement a pseudo sealing mechanism The trick is to virtually inherit from a base class…
IntroductionThis article is the second in a three part article series on the Visual Studio 2008 Debugger.  It provides tips in setting and using breakpoints. If not familiar with this debugger, you can find a basic introduction in the EE article loc…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.
Suggested Courses

764 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question