-- ところで,SDKのSelectObjectのところを見ると,Device contextに対してSelectObjectできるbitmapは以下のAPIで作られなくてはならないとあります. > CreateBitmap, CreateBitmapIndirect, CreateCompatibleBitmap, CreateDIBitmap, CreateDIBSection > (Bitmaps can be selected for memory DCs only, and for only one DC at a time.)