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LEADTOOLS Vector C++ Class Library Help

LVectorBase::GetPan

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#include "ltwrappr.h"

virtual L_INT LVectorBase::GetPan(pPan)

POINT *pPan;

/* pointer to a structure */

Gets the current pan values.

Parameter

Description

pPan

Pointer to a POINT structure to be updated with the current pan values.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function will get the current physical pan values. These pan values are in pixels. This function can be used to scroll the VECTOR image.

Required DLLs and Libraries

LVKRN

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:

LVectorBase::SetPan, LVectorBase::SetViewport, LVectorBase::GetViewport

Topics:

Panning Vector Images

 

Vector Images: Viewing a Vector Image

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LVectorBase__GetPanExample(HWND hWnd)
{
   L_INT       nRet;
   POINT       panPoint;
   L_TCHAR     szTemp[100];
   LVectorBase Vector;
   nRet = Vector.Load(MAKE_IMAGE_PATH(TEXT("random.dxf")));
   if(nRet != SUCCESS)
      return nRet;
   nRet = Vector.GetPan(&panPoint);
   if(nRet != SUCCESS)
      return nRet;
   wsprintf(szTemp, 
            TEXT("Old Pan (%d,%d)"), 
            panPoint.x,
            panPoint.y);
   MessageBox(hWnd, szTemp, TEXT(""), MB_OK);
   panPoint.x += 10;
   nRet = Vector.SetPan(&panPoint);
   if(nRet != SUCCESS)
      return nRet;
   wsprintf(szTemp, 
            TEXT("New Pan (%d,%d)"), 
            panPoint.x,
            panPoint.y);
   MessageBox(hWnd, szTemp, TEXT(""), MB_OK);
   return SUCCESS;
}
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