CAdUiToolBarCtrl::AddBitmap (int, UINT) Method

int AddBitmap(
    int nNumButtons, 
    UINT nBitmapID
);

Adds one or more button images to the list of button images stored in the toolbar control.

Parameters	Description
nNumButtons	Number of button images in the bitmap
nBitmapID	Resource identifier of the bitmap that contains the button image or images to add

Zero-based index of the first new image if successful; otherwise -1.