WM DDE REQUEST: Difference between revisions
Created page with "{{DISPLAYTITLE:WM_DDE_REQUEST}} This message is posted from client to server, to request that the server provide a data item to the client. This message is always posted. ==Syntax== <pre> param1 HWND hwnd; →Window handle of the server.: param2 PDDESTRUCT DdeStruct; →DDE structure.: </pre> ==Parameters== ;hwnd (HWND) - input: Window handle of the server. ;DdeStruct (PDDESTRUCT) - input: DDE structure. ::This points to a dynamic data exchange st..." |
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Latest revision as of 02:07, 28 April 2025
This message is posted from client to server, to request that the server provide a data item to the client. This message is always posted.
Syntax
param1 HWND hwnd; /* Window handle of the server. */ param2 PDDESTRUCT DdeStruct; /* DDE structure. */
Parameters
- hwnd (HWND) - input
- Window handle of the server.
- DdeStruct (PDDESTRUCT) - input
- DDE structure.
- This points to a dynamic data exchange structure. See DDESTRUCT.
- offszItemName identifies which data item is being requested.
- usFormat identifies in which registered DDE data format the data item is to
- be rendered.
Returns
- ulReserved (ULONG) - return
- Reserved value, should be 0.
Remarks
The receiving application is expected to respond with a WM_DDE_DATA message, containing the requested data, if possible. Otherwise, it is expected to respond with a negative WM_DDE_ACK message.
Default Processing
None.