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EM_CANUNDO (RichInk Control)

4/8/2010

The EM_CANUNDO message determines whether actions can be reversed.

Syntax

EM_CANUNDO
    wParam = (WPARAM) 0;
    lParam = (LPARAM) 0;

Parameters

  • wParam
    Reserved; set to 0.
  • lParam
    Reserved; set to 0.

Return Value

Returns TRUE, or non-zero if there is a transaction. Returns FALSE, or zero if there are no transactions.

Remarks

EM_CANUNDO is defined in winuser.h, not in Richink.h.

Requirements

Header richink.h
Library richink.lib
Windows Embedded CE Windows CE 3.0 and later
Windows Mobile Pocket PC 2000 and later

See Also

Concepts

RichInk Control Messages