LAnnAudioClip::DeleteUserHandle

#include "ltwrappr.h"

virtual L_INT LAnnAudioClip::DeleteUserHandle(nIndex)

index of the user handle to delete

Deletes an existing user-defined AudioClip annotation handle.

Parameter	Description
nIndex	Index of the user-defined handle to delete. The index is zero based. Pass -1 to delete all user-defined handles. Passing a negative value other than 1 makes the function return ERROR_INV_PARAMETER.

Returns

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

Comments

Call this function to delete a user-defined handle from an AudioClip annotation object.

Set uIndex to -1 to delete all the user-defined handles for an AudioClip annotation object.

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.

Example

This examples deletes the first user handle of an object

L_INT LAnnAudioClip_DeleteUserHandleExample(LAnnAudioClip *LAudioClip) 
{ 
   L_INT nRet; 
   L_UINT uCount; 
   // Get the total count of user handles 
   nRet = LAudioClip->GetUserHandles(NULL, &uCount); 
   if(nRet != SUCCESS) 
      return nRet; 
   if (uCount > 0) 
   { 
      nRet =  LAudioClip->DeleteUserHandle(0); 
      if(nRet != SUCCESS) 
         return nRet; 
   } 
   else 
   { 
      MessageBox(NULL, TEXT("No User Handles!"), TEXT("Error"), MB_OK); 
      return FAILURE; 
   } 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

Products | Support | Contact Us | Copyright Notices
© 1991-2017 Apryse Sofware Corp. All Rights Reserved.

LEADTOOLS Raster Imaging C++ Class Library Help

Introduction

Version History

Getting Started

LEADTOOLS Raster Imaging Features

Redistributables/Files To Be Included With Your Application

Quick Reference

Tutorials

Classes and Member Functions

Call Back Functions

Summary of Features

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