A DDE client application posts a WM_DDE_UNADVISE message to inform a DDE server application that the specified item or a particular clipboard format for the item should no longer be updated. This terminates the warm or hot data link for the specified item.
WM_DDE_UNADVISE wParam = (WPARAM) hwnd; // handle of posting application lParam = (LPARAM) lParam; // format and item atom
Parameter |
Description |
cfFormat |
This is the LOWORD of lParam. Specifies the clipboard format of the item for which the update request is being retracted. If cfFormat is NULL, all active WM_DDE_ADVISE conversations for the item are to be terminated. |
aItem |
This is the HIWORD of lParam. Contains a global atom that identifies the item for which the update request is being retracted. When aItem is NULL, all active WM_DDE_ADVISE links associated with the conversation are to be terminated. |
Posting
The client application posts the WM_DDE_UNADVISE message by calling the PostMessage function, not the SendMessage function.
The server application posts the WM_DDE_ACK message to respond positively or negatively. When posting WM_DDE_ACK, the server can either reuse the aItem atom, or it can delete the atom and create a new one.
GlobalAddAtom, PackDDElParam, PostMessage, ReuseDDElParam, SendMessage, UnpackDDElParam, WM_DDE_ACK, WM_DDE_ADVISE
file: /Techref/os/win/api/win32/mess/src/msg23_12.htm, 3KB, , updated: 2000/4/7 11:20, local time: 2024/11/23 18:35,
3.144.25.248:LOG IN
|
©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions? <A HREF="http://ecomorder.com/techref/os/win/api/win32/mess/src/msg23_12.htm"> WM_DDE_UNADVISE</A> |
Did you find what you needed? |
Welcome to ecomorder.com! |
Welcome to ecomorder.com! |
.