IAnchor::GetChangeHistory method (textstor.h)

Article
02/22/2024

The IAnchor::GetChangeHistory method gets the history of deletions that have occurred immediately preceding or following the anchor.

Syntax

HRESULT GetChangeHistory(
  [out] DWORD *pdwHistory
);

Parameters

[out] pdwHistory

Bit field flags that specify that deletions have occurred immediately preceding or following the anchor. One or both of the following values can be set.

Value	Meaning
TS_CH_PRECEDING_DEL	Text preceding the anchor has been deleted.
TS_CH_FOLLOWING_DEL	Text following the anchor has been deleted.

Return value

This method can return one of these values.

Value	Description
S_OK	The method was successful.
E_INVALIDARG	The value of pdwHistory is invalid.

Remarks

The pdwHistory change flags must be set when deletions adjacent to the anchor have occurred.

The change flags remain set until they are cleared with a call to IAnchor::ClearChangeHistory.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	textstor.h
DLL	Msctf.dll
Redistributable	TSF 1.0 on Windows 2000 Professional