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IE_EMPTYUNDOBUFFER
Empties the undo buffer.
Parameters
wParam
Not used; must be 0.
lParam
Not used; must be 0.
Return Value
Returns one of the following:
Constant
| Description
| IER_OK
| Success.
| IER_PARAMERR
| wParam or lParam is invalid.
| IER_SECURITY
| The control has security protection disallowing the operation.
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Comments
If there is nothing in the undo buffer, this message returns IER_OK but does
nothing else. As long as the buffer remains empty after sending
IE_EMPTYUNDOBUFFER, the messages IE_CANUNDO and WM_UNDO return FALSE.
See Also
IE_CANUNDO
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
More Online Helps
Win32 Programmer's Reference (win32.hlp)
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
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