If GreSelectBitmap is called to deselect a bit map, the return code is the handle of the deselected bit map.

When created, a bit map has to be selected into a DC before the presentation driver can write to it. A bit map can be selected into the DC that created it or into any DC that has a compatible bit-map format. Compatibility can be ensured by using one of the standard formats. Note that the presentation driver must select a bit map into a device context before attempting to draw it.