The TB_ADDBITMAP message adds one or more images to the list of button images available for a toolbar.
TB_ADDBITMAP
wParam = (WPARAM) nButtons;
lParam = (LPARAM) (LPTBADDBITMAP) lptbab;
Parameters
nButtons
Number of button images in the bitmap.
lptbab
Pointer to a TBADDBITMAP structure that contains the identifier of a bitmap resource and the handle to the module instance with the executable file that contains the bitmap resource.
Return Values
Returns the index of the first new image if successful or - 1 otherwise.
Remarks
If the toolbar was created by using the CreateWindowEx function, you must send the TB_BUTTONSTRUCTSIZE message to the toolbar before sending TB_ADDBITMAP.
See Also