LAnnRTF::EnumHandleCallBack (original) (raw)

Summary

Processes each annotation object from the LAnnRTF::EnumerateHandles function.

Syntax

#include "ltwrappr.h"

virtual L_INT LAnnRTF::EnumHandleCallBack(hObject, pHandleInfo)

Parameters

HANNOBJECT hObject

Handle of the annotation object being processed.

pANNHANDLEINFO pHandleInfo

Pointer to structure that contains information about the annotation object handle.

Returns

Comments

The LAnnRTF::EnumerateHandles function calls your callback function for each handle of a single annotation object.

The pHandleInfo structure can be used to obtain detailed information about an annotation object handle. It can also be used to change some (but not all) of the properties of a user handle. All properties of an annotation object handle can be changed EXCEPT the location. The properties of a node that can be changed with this function are:

• ID
• Visibility
• Pen color
• Fill color
• Shape
• Cursor

To change the location of a user-defined node, use LAnnRTF::ChangeUserHandle.

To change the properties of an annotation object handle, set the corresponding field in the pHandleInfo structure, and return SUCCESS_CHANGED. To leave the handle properties unchanged, return SUCCESS_UNCHANGED.

To enable the LAnnRTF::EnumHandleCallBack you must call LBase::EnableCallBack before calling LAnnRTF::EnumerateHandles function.

For more information, refer to ANNHANDLEINFO.

Required DLLs and Libraries

• LTANN
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions

• Class Members

Topics

• Annotation Functions: Object Properties
• Implementing Annotations
• Automated User Interface for Annotations
• Annotation Functions: Creating and Deleting Annotations
• Types of Annotations
• Annotation Functions: Implementing Custom Annotations
• Annotation Functions: Creating Custom Annotations
• Fixed Annotations
• Minimizing Flicker With Double Buffering
• Annotation Functions: Working with the Toolbar

Example

For an example, refer to LAnnRTF::EnumerateHandles.

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