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Disable Close button on form

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Disable Close button on form

 
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  #1
May 12th, 2009
How would it be possible to disable the closebutton(X) in the upper right corner of the form.
I dont want to use this property because it takes the minimize and maximize button away also.
C++ Syntax (Toggle Plain Text) 
  1. ControlBox = false;

The only thing I will need on the form is the minimizebutton.
I can find separate properties for the minimizebutton and maximizebutton but not for the (X) button.
Last edited by Lukezzz; May 12th, 2009 at 10:09 pm.
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Re: Disable Close button on form

 
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  #2
May 12th, 2009
[Warning: This is coming from a Java programmer with no C++ experience]

Assuming that clicking 'X' generates an event, and C++ has method overriding - override the method that closes the window when the user clicks 'X', and do nothing in that method. That way, nothing will happen when the 'X' is clicked.
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Re: Disable Close button on form

 
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  #3
May 13th, 2009
The problem is that I have put "Exit" in the File menu that will be used to close the window and the application like:
C++ Syntax (Toggle Plain Text) 
  1. this->Close();

So I cant if that is possible to not close the form in that event.

I still need to disable or remove the close(X) from the form in somehow.


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Originally Posted by BestJewSinceJC View Post
[Warning: This is coming from a Java programmer with no C++ experience]

Assuming that clicking 'X' generates an event, and C++ has method overriding - override the method that closes the window when the user clicks 'X', and do nothing in that method. That way, nothing will happen when the 'X' is clicked.
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Re: Disable Close button on form

 
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  #4
May 13th, 2009
Give us a little chance and tell us what GUI you are using?
If you are forced to reinvent the wheel at least try to invent a better one!

Please use code tags - Please mark solved threads as solved
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Re: Disable Close button on form

 
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  #5
May 13th, 2009
Yes ofcourse, I forgot to tell this.

I use Visual C++ 2008 Express Edition. I am googling around but I have problem to find a direct solution for this.


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Originally Posted by jencas View Post
Give us a little chance and tell us what GUI you are using?
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Re: Disable Close button on form

 
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  #6
May 13th, 2009
c++ Syntax (Toggle Plain Text) 
  1.  
  2. // extra variable
  3. Boolean can_exit;
  4.  
  5. // form closing
  6. if(!can_exit)
  7.    e->Cancel::set(true);
  8.  
  9. // button exit click
  10. can_exit = true;
  11.  
  12. this->Close();
  13.  
  14. // form load
  15. can_exit = false;
hope that helps..
Last edited by cikara21; May 13th, 2009 at 12:46 pm.
.:-cikara21-:.
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Re: Disable Close button on form

 
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  #7
May 13th, 2009
It seems to work almost, I have to ask here.
I have succeded to put this as a global variable:
bool can_exit;
In the closing event of the form, I have put this code:
if(!can_exit)
   e->Cancel::set(true);
In the Load event of the form, I have put this code:
can_exit = false;

But I dont understand where to put this code:
// button exit click
can_exit = true;

I have never found an event for the close(x) button but perheps there is one ? I wonder if that code will be put in that event in that case.

However if I put the other code in place, nothing happens when I click the close(X) button wich is perfect.
However when I press a button on the form that tries to close the form(below code), nothing happens but perheps that has to do with the code that I wonder where to put:
C++ Syntax (Toggle Plain Text) 
  1. this->Close();

this->Close();
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Originally Posted by cikara21 View Post
c++ Syntax (Toggle Plain Text) 
  1.  
  2. // extra variable
  3. Boolean can_exit;
  4.  
  5. // form closing
  6. if(!can_exit)
  7.    e->Cancel::set(true);
  8.  
  9. // button exit click
  10. can_exit = true;
  11.  
  12. this->Close();
  13.  
  14. // form load
  15. can_exit = false;
hope that helps..
Last edited by Lukezzz; May 13th, 2009 at 3:31 pm.
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Re: Disable Close button on form

 
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  #8
May 13th, 2009
I just understood that I will put that code in the event for the button that will close the form:

Many thanks for this help...

C++ Syntax (Toggle Plain Text) 
  1. // button exit click
  2. can_exit = true;
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