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LAnnProtractor::GetPoints

Summary

Fills the specified array of ANNPOINT structures with the endpoints of the ruler object.

Syntax

#include "ltwrappr.h"

virtual L_INT LAnnProtractor::GetPoints(pPoints)

Parameters

pANNPOINT pPoints

Pointer to the array to be filled with the vertices of the protractor object.

Returns

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

Comments

The ANNPOINT structure is like a Windows POINT structure, except that it uses double-precision floating point values.

Coordinates of an object's points are relative to its container object. The coordinates are interpreted using the container's scaling factors and offsets, which are described in Low-Level Coordinate System for Annotations.

The order of the vertices in the array is shown below:

$image\ProPoint.gif$

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

L_INT LAnnProtractor_GetPointsExample() 
{ 
   LBitmap MyBitmap; 
   LAnnProtractor MyAnnProtractor; 
 
   ANNPOINT MyPts[3] = { 40,40, 
                         140,40, 
                         140,140 
                       }; 
 
   pANNPOINT pMyPts = MyPts; 
   MyAnnProtractor.SetPoints(pMyPts, 3); 
 
   L_UINT uPointCount = MyAnnProtractor.GetPointCount(); 
   HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE, sizeof(ANNPOINT) * uPointCount); 
   pANNPOINT pAnnPoint = (pANNPOINT)GlobalLock(hGlobal); 
 
   MyAnnProtractor.GetPoints(pAnnPoint); 
 
   for (unsigned int i=0; i<uPointCount; i++) 
   { 
      L_TCHAR szTemp[100]; 
 
      wsprintf(szTemp, TEXT("[%d]Point(%d, %d)"), i, (int)pAnnPoint[i].x, (int)pAnnPoint[i].y); 
      AfxMessageBox(szTemp); 
   } 
 
   GlobalFree(hGlobal); 
 
   return SUCCESS; 
}