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L_VecConvertFromEMF

Summary

Converts an enhanced Windows metafile (EMF) into a LEAD Technologies vector handle. When this function is completed, there are two copies of the drawing in memory: the EMF and the original LEAD vector. Freeing one will not affect the other. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Syntax

#include "ltvkrn.h"

L_LVKRN_API L_INT L_VecConvertFromEMF(hDC, pVector, hEMF)

Parameters

L_HDC hDC

Handle to the device context responsible for the conversion.

pVECTORHANDLE pVector

Pointer to a vector handle.

L_HENHMETAFILE hEMF

Handle to the EMF to be converted.

Returns

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

Comments

This function updates information in the vector handle and copies the EMF drawing data into the LEAD bitmap.

Required DLLs and Libraries

LTVKRN
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Example

This example converts an enhanced windows metafile into a DXF file.

L_LTVKRNTEX_API L_INT VecConvertFromEMFExample( 
   HWND hWnd, 
   L_TCHAR* pszFileName, 
   HENHMETAFILE hEMF) 
{ 
   L_INT nRet; 
   VECTORHANDLE TmpVector;     /* Vector handle for initial conversion */ 
   HDC hDC; 
 
   /* Convert to LEAD vector */ 
   hDC = GetDC( hWnd ); 
   nRet = L_VecConvertFromEMF( hDC, &TmpVector, hEMF ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   ReleaseDC( hWnd, hDC ); 
 
   /* Save as DXF */ 
   nRet = L_VecSaveFile( pszFileName, &TmpVector, FILE_DXF, NULL ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Free the vector */ 
   nRet = L_VecFree( &TmpVector ); 
 
   return nRet; 
}