An application sends a BM_SETIMAGE message to associate a new image (icon or bitmap) with the button.
BM_SETIMAGE
wParam = (WPARAM) fImageType; // image-type flag
lParam = (LPARAM) (HANDLE) hImage; // handle of the image
Parameters
fImageType
Value of wParam. Specifies the type of image to associate with the button. This parameter can be one of the following values:
IMAGE_BITMAP
IMAGE_ICON
hImage
Value of lParam. Identifies the image to associate with the button.
Return Values
The return value is the handle of the image previously associated with the button, if any; otherwise, it is NULL.
See Also