REFERENCE GUIDE

WM_SIZECLIPBOARDthe clipboard contents) and the clipboard-application window haschanged size.Parameters wParam Identifies the clipboard-application window.CommentsIParamThe low-order word of the IParam parameter identifies a RECTdata structure that specifies the area the clipboard ownershould paint. The high-order word is not used.A WM_SIZECLIPBOARD message is sent with a null rectangle (0,0,0,0) asthe new size when the clipboard application is about to be destroyed orminimized. This permits the clipboard owner to free its display resources.An application must use the GlobalLock function to lock the memory thatcontains the PAINTSTRUCT data structure. The application should unlockthat memory by using the GlobalUnlock function before it yields orreturns control.WM_SPOOLERST ATUS 3.0This message is sent from Print Manager whenever a job is added to orremoved from the Print Manager queue.Parameters wParam Is set to SP -10BST A TUS.CommentsIparamSpecifies in its low-order word the number of jobs remaining inthe Print Manager queue. The high-order word is not used.This message is for informational purposes only.This message results when a WM_SYSKEYUP and WM_SYSKEYDOWNmessage are translated. It specifies the virtual-key code of the Systemmenukey.Parameters wParam Contains the ASCII-character key code of a System-menu key.IParamContains the repeat count, scan code, key-transition code,previous key state, and context code, as shown in the followinglist:Bit0-15(low-order word)ValueRepeat count (the number of timesthe key stroke is repeated as a resultof the user holding down the key).688Software development kit