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WM_DDE_REQUEST

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Revision as of 02:07, 28 April 2025 by Martini (talk | contribs) (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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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.