CMFCToolBar::GetInvalidateItemRect
Retrieves the region of the client area that must be redrawn for the button at the given index.
virtual void GetInvalidateItemRect(
int nIndex,
LPRECT lpRect
) const;
Parameters
[in] nIndex
The index of the button for which to retrieve the client area.[out] lpRect
A pointer to a RECT object that receives the region of the client area.
Remarks
The lpRect parameter must not be NULL. If no button exists at the provided index, lpRect receives a RECT object that is initialized to zero.
Requirements
Header: afxtoolbar.h