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Forums » Prof-UIS Tech Support » About a nonactivation of NcAreaButton Collapse All
Subject Author Date
tera tera Feb 2, 2010 - 9:25 PM

Hello.


I want to deactivate this button.

Please teach a good command.


Technical Support Feb 3, 2010 - 8:57 AM

We guess you implemented custom bar caption buttons. If the CExtBarNcAreaButton::OnQueryVisibility() virtual method returns false flag, then the button is not visible. So, your caption buttons should know when then should be visible and when hidden. The CExtControlBar::OnNcAreaButtonsReposition() method recomputes layout of caption. After that, you can redraw bar caption by sending the WM_NCPAINT message to the CExtControlBar window.