L_AnnGetUserHandles

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnGetUserHandles(hObject, pAnnHandle, pCount)

HANNOBJECT hObject;	handle to the annotation object with the user-defined handles
pANNHANDLE pAnnHandle;	array of ANNHANDLE structures that define user handles
L_UINT *pCount;	pointer to an unsigned integer used to return the total count of user handles

Gets information about all existing user-defined annotation handles.

Parameter	Description
hObject	Handle to the annotation object for which to get the user handles.
pAnnHandle	Array of ANNHANDLE structures to be updated with the user-defined handles.
pCount	Pointer to an unsigned integer used to return the total number of user handles

Returns

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

Comments

Call with pAnnHandle == NULL to get the total number of user handles. Then allocate memory for an array of ANNHANDLE structures and call this function again.

Gets an array of user-defined handles associated with the 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 example displays information about all the user handles in an object.

static L_VOID DumpAnnHandle(L_UINT      uIndex, 
pANNHANDLE  pAnnHandle) 
{ 
   L_TCHAR szMsg[400]; 
   if (pAnnHandle) 
   { 
      _stprintf_s(szMsg, TEXT("uIndex %d\nnSize: %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); 
   } 
} 
L_INT AnnGetUserHandlesExample(HANNOBJECT hObject) 
{ 
   L_INT nRet; 
   L_UINT      i; 
   L_UINT      uCount; 
   pANNHANDLE  pAnnHandle; 
   // Get the total count of user handles, and allocate memory 
   nRet = L_AnnGetUserHandles(hObject, NULL, &uCount); 
   if(nRet != SUCCESS) 
      return nRet; 
   pAnnHandle = (pANNHANDLE)malloc(uCount * sizeof(ANNHANDLE)); 
   nRet = L_AnnGetUserHandles(hObject, pAnnHandle, &uCount); 
   if(nRet != SUCCESS) 
      return nRet; 
   for (i = 0; i<uCount; i++) 
   DumpAnnHandle(i, pAnnHandle + i); 
   free(pAnnHandle); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Raster Imaging C API Help

Introduction

Version History

Getting Started

LEADTOOLS Raster Imaging Features

Redistributables/Files To Be Included With Your Application

Functions:	L_AnnDefine, L_AnnAddUserHandle, L_AnnAdjustPoint, L_AnnChangeUserHandle, L_AnnConvert, L_AnnDefine2, L_AnnDeleteUserHandle, L_AnnEnumerateHandles, L_AnnGetRestrictToContainer, L_AnnGetRotateAngle, L_AnnGetUserHandle, L_AnnHitTest, L_AnnRestrictCursor, L_AnnSetRestrictToContainer
Topics:	Annotation Functions: Creating and Deleting Annotations
	Implementing Custom Annotations
	Implementing Annotations
	Implementing an Automated Annotation Program
	Implementing a Non-automated Annotation Program
	Obtaining Annotation Object Information