通过

CMFCToolBarButton::OnContextHelp

  • 项目

Called by the framework when the parent toolbar handles a WM_HELPHITTEST message.

virtual BOOL OnContextHelp(
   CWnd* pWnd
);

Parameters

  • [in] pWnd
    The parent window of the toolbar button.

Return Value

This method returns FALSE.

Remarks

The default implementation of this method does nothing and returns FALSE. Override this method to return a nonzero value if the button processes the help message.

For more information about the WM_HELPHITTEST message, see TN028: Context-Sensitive Help Support.

Requirements

Header: afxtoolbarbutton.h

See Also

Reference

CMFCToolBarButton Class

Hierarchy Chart

TN028: Context-Sensitive Help Support