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There is a better way<br />
<br />
This is done through a round-about means. &nbsp;You must disable the close menu option of the window's system menu, then the button will be disabled. Use<br />
<br />
HMENU SysMen = GetSystemMenu(WndHnd,false<wbr />); // &gt;&gt;&nbsp;window's system menu.<br />
<br />
EnableMenuItem(SysMen,SC_C<wbr />LOSE,MF_BY<wbr />COMMAND | MF_DISABLED);<br />

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There is a better way

This is done through a round-about means.  You must disable the close menu option of the window's system menu, then the button will be disabled. Use

HMENU SysMen = GetSystemMenu(WndHnd,false); // >> window's system menu.

EnableMenuItem(SysMen,SC_CLOSE,MF_BYCOMMAND | MF_DISABLED);


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I stand corrected. &nbsp;There is a better way :)<br />
<br />
Thanks nietod.<br />

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I stand corrected.  There is a better way :)

Thanks nietod.


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Hi,<br />
&nbsp; &nbsp; In a VC++ application, the 'X' button of the Dialog's titlebar is required to be disabled. This cannot be set directly in the dialog's property. Is there any othere programmatical way of disabling it?? <br />
Please reply me as soon as possible as it is very urgent.<br />
Thanks
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Hi,
    In a VC++ application, the 'X' button of the Dialog's titlebar is required to be disabled. This cannot be set directly in the dialog's property. Is there any othere programmatical way of disabling it?? 
Please reply me as soon as possible as it is very urgent.
Thanks

Disable the 'X' button on the titlebar of a dialog box

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.