LBitmapRgn::SetRgnRect

Summary

Creates or updates the associated class object's bitmap region by adding a rectangular region.

Syntax

#include "ltwrappr.h"

virtual L_INT LBitmapRgn::SetRgnRect(pRect)

Parameters

LPRECT pRect

Pointer to the windows RECT structure that specifies the rectangular region. You specify the structure using device context coordinates, and LEADTOOLS translates the coordinates using the values set using LBitmapRgn::SetRgnXForm.

Returns

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

Comments

To update an existing region, you specify how the new region is to be combined with the existing one. For descriptions of the possibilities, refer to Creating a Bitmap Region.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

L_INT LBitmapRgn__SetRgnRectExample() 
{ 
   L_INT nRet; 
   LBitmapBase MyBitmap; 
   RECT Rect={10,10,50,200}; 
    
   nRet = MyBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp"))); 
   if(nRet !=SUCCESS) 
      return nRet; 
   LBitmapRgn Region(&MyBitmap); 
 
   nRet =Region.SetRgnRect(&Rect); 
   if(nRet !=SUCCESS) 
      return nRet; 
 //set the rect as a region 
 
 
 
   //… 
 
   return SUCCESS; 
}
Help Version 22.0.2023.2.2
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