... "TBtnBmp", WS_CHILD | WS_VISIBLE, 279, 8, 16, 15 } If we double click in treeview item "icon", "bitmap", "dialog", etc an error occur. When I open alask.rc (dialog) the message is displayed: Dialog style not found: WS_VISIBLE In combos.rc: Dialog style not found: 4 Dialogs style ...