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IDM_UNDO Command ID

Undo the previous command.

C++ Information

Command group CGID_MSHTML (defined in mshtmhst.h)
Symbolic constant IDM_UNDO
User interface None. Set nCmdExecOpt to OLECMDEXECOPT_DONTPROMPTUSER.
IOleCommandTarget::Exec parameters
pvaIn Set to NULL.
pvaOut Set to NULL.
Header file mshtmcid.h
Applies to IHTMLDocument2::execCommand, IHTMLDocument2::queryCommandEnabled, IHTMLDocument2::queryCommandIndeterm, IHTMLDocument2::queryCommandState, IHTMLDocument2::queryCommandSupported, IHTMLDocument2::queryCommandValue, IOleCommandTarget::Exec, IOleCommandTarget::QueryStatus.

Remarks

This command applies to the document object. For example, the following button reverses the last action.

<button onclick="document.execCommand('Undo')">UNDO</button> 

Minimum Availability

Internet Explorer 5.0 and later.