LAnnAudioClip::GetUserHandle

#include "ltwrappr.h"

virtual L_INT LAnnAudioClip::GetUserHandle(uIndex, pAnnHandle)

L_INT32 uIndex;	/* index of user handle to get */
pANNHANDLE pAnnHandle;	/* pointer to a structure */

Gets information about the specified user-defined annotation handle.

Parameter	Description
uIndex	Index of user handle to get. The index is zero based. Passing a negative value returns ERROR_INV_PARAMETER.
pAnnHandle	Pointer to structure to be updated with the user handle.

Returns

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

Comments

Before calling this function, you must create the AudioClip annotation object.

Call this function to get information about an existing user-defined annotation handle.

If successful, the entire pAnnHandle structure is filled. The pAnnHandle->uFlags field is ignored. For more information, refer to ANNHANDLE.

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.

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

// This example displays information about the first user handle in an annotation object

L_INT LAnnAudioClip_GetUserHandleExample(L_UINT uIndex, pANNHANDLE pAnnHandle) 
{
   L_TCHAR szMsg[400]; 
 
   if (pAnnHandle) 
 
   {
      wsprintf(szMsg, 
                TEXT("uIndex %d\nuStructSize: %d\nnID: %d\n aptContainer[%f,%f]\nptClient[%d,%d]\nbVisible: %s\ncrPen: 0x%x\ncrFill: 0x%x\nnShape: %s\nhCursor: %s\n"), uIndex, 
                pAnnHandle->uStructSize, pAnnHandle->nID, pAnnHandle->aptContainer.x, 
                pAnnHandle->aptContainer.y, pAnnHandle->ptClient.x, pAnnHandle->ptClient.y, 
                pAnnHandle->bVisible ? TEXT("Visible") : TEXT("Not Visible"), 
                pAnnHandle->crPen, pAnnHandle->crFill, pAnnHandle->nShape == 
                ANNHANDLE_SHAPE_SQUARE ? TEXT("Square") : TEXT("Circle"), 
                pAnnHandle->hCursor ? TEXT("Cursor") : TEXT("No Cursor")); 
 
      MessageBox(NULL, szMsg, TEXT(""), MB_OK); 
   }
   return SUCCESS;
}