LBitmapRgn::GetRgnBounds

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#include "ltwrappr.h"

virtual L_INT LBitmapRgn::GetRgnBounds(pRect)

LPRECT pRect;

/* address of the RECT structure to be updated */

Gets the bounding rectangle of the associated class object's bitmap region.

Parameter	Description
pRect	Address of the RECT variable to updated with the bounding rectangle.

Returns

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

Required DLLs and Libraries

LTDIS

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.

See Also

Functions:	LBitmapRgn::Offset, Class Members
Topics:	Raster Image Functions: Creating and Using a Region
	Raster Image Functions: Region Processing
	Defining and Using a Bitmap Region

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LBitmapRgn__GetRgnBoundsExample(HWND hWnd)
{
   L_INT nRet;
   L_SIZE_T     dwArea ;
   LBitmapBase MyBitmap(200,300,ORDER_BGR);
   RECT rc, Rect={10,10,350,400};
   nRet = MyBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")));
   if(nRet !=SUCCESS)
      return nRet;
   LBitmapRgn Region(&MyBitmap);
   //set the round rect as a region
   nRet =Region.SetRgnRoundRect(&Rect,30,40);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =Region.GetRgnBounds(&rc);
   if(nRet !=SUCCESS)
      return nRet;
   // Get the number of pixels in the region
   nRet =Region.GetRgnArea( &dwArea);
   if(nRet !=SUCCESS)
      return nRet;
   if (Region.BitmapHasRgn() == FALSE)
      MessageBox(hWnd, TEXT("Bitmap has region"), TEXT("Region Error"), MB_OK);
   return SUCCESS;
}