|
Overview |
|
|
|
Group |
|
|
|
Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| -
| Header File
| dde.h
| Unicode
| No
| Platform Notes
| None
|
|
|
WM_DDE_UNADVISE
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
Parameters
hwnd
Value of wParam. Identifies the client window sending the message.
lParam
Holds the cfFormat and aItem parameters.
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.
|
Remarks
Posting
The client application posts the WM_DDE_UNADVISE message by calling the PostMessage function, not the SendMessage function.
The client application allocates aItem by calling the GlobalAddAtom function.
Receiving
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.
See Also
GlobalAddAtom, PackDDElParam, PostMessage, ReuseDDElParam, SendMessage, UnpackDDElParam, WM_DDE_ACK, WM_DDE_ADVISE
Related Links
Software for Delphi and C++ Builder developers
Software for Visual Studio .NET developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET
TMS Scripter Studio Pro components for Delphi/C++Builder
More Online Helps
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
|
