L_AnnGetUndoDepth

Summary

Retrieves the number of user actions that can be reversed using the L_AnnUndo function.

Syntax

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnGetUndoDepth(hObject, puUsedLevels, puMaxLevels)

Parameters

HANNOBJECT hObject

Handle to the automation object.

L_UINT *puUsedLevels

Address of a variable to be updated with the number or user actions that can be reversed using L_AnnUndo. This number will be between 0 and the number retrieved in puMaxLevels.

L_UINT *puMaxLevels

Address of a variable to be updated with the maximum number of user actions that can be undone using L_AnnUndo. This is the value that was set using L_AnnSetUndoDepth.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

If puUsedLevels is updated with a value of 0, no user actions can be undone using the L_AnnUndo function.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

For an example, refer to L_AnnUndo.

Help Version 22.0.2023.7.11
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