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Dears,

Can you tell me how can I handle the event click of  close button in a CExtControlBar ?

Thanks,

Luis

Dear Luis,

The buttons in the caption area of the resizable control bar are not the button controls because the caption is a non-client area (which does not contain child windows). Each button is an instance of a CExtBarNcAreaButton-derived class. The X button ("Close") is the instance of the CExtBarNcAreaButtonClose class. To handle the mouse-click event, create your own class derived from CExtBarNcAreaButtonClose. Your button should implement the OnNcAreaClicked virtual method. Please take a look at the code for the CExtBarNcAreaButtonClose::OnNcAreaClicked method in ExtControlBar.cpp for details. Besides you should create a CExtControlBar-derived class and override the OnNcAreaButtonsReinitialize virtual method to initialize the caption buttons. This overridden method should be similar to the original one but with your CExtBarNcAreaButtonClose derived type for initializing the X button.