Sets the image list that the toolbar control will use to display "hot" buttons.
A pointer to a CImageList object that was previously used by the toolbar control to display hot button images.
This member function implements the behavior of the Win32 message TB_SETHOTIMAGELIST, as described in the Windows SDK.
The MFC implementation of SetHotImageList uses a CImageList object containing the toolbar control's hot button images, rather than a handle to an image list. A hot button appears highlighted when the pointer is above it.