LBitmapBase::Clear

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#include "ltwrappr.h"

virtual L_INT LBitmapBase::Clear(void)

Sets all bits to 0 in the specified bitmap, making it a black bitmap.

Returns

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

Comments

Call this function to clear the bitmap data, this will fill the bitmap data with zeros.

Required DLLs and Libraries

LTDIS
LTFIL

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:	LBitmapBase::Fill, LBitmapBase::ClearNegativePixels, Class Members
Topics:	Raster Image Functions: Getting and Setting Pixel Values

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LBitmapBase__ClearExample()
{
   L_INT nRet;
   LBitmapBase MyBitmap;
   MyBitmap.SetFileName(MAKE_IMAGE_PATH(TEXT("Image1.cmp")));
   nRet =MyBitmap.Load();
   if(nRet !=SUCCESS)
      return nRet;
   nRet =MyBitmap.Clear();
   if(nRet !=SUCCESS)
      return nRet;
   return SUCCESS;
}