LBitmapBase::Resize

#include "ltwrappr.h"

virtual L_INT LBitmapBase::Resize(pLBitmapDst, uStructSize, uFlags)

LBitmapBase * pLBitmapDst;	/* pointer to a LBitmapBase bitmap object to be updated*/
L_UINT uStructSize;	/* size of the BITMAPHANDLE structure */
L_UINT uFlags;	/* flags that control the resize behavior */

Resizes the class object's bitmap and places the resized bitmap in the destination class object.

Parameter	Description
pLBitmapDst	Pointer to a LBitmapBase bitmap object that will be updated with the resized bitmap.
uStructSize	Size of the BITMAPHANDLE structure used by the object. Pass sizeof(BITMAPHANDLE).
uFlags	Flags that control the behavior when resizing the bitmap. Use one of the following:
	Value	Meaning
	SIZE_NORMAL	[0x0000] Resize normally.
	SIZE_FAVORBLACK	[0x0001] (Document/Medical only) Preserve black objects when making the image smaller. This option affects only 1-bit, black-and-white images, where it prevents the disappearance of thin lines. You can use a bitwise OR ( \| ) to combine this flag with another one. For example, SIZE_RESAMPLE \| SIZE_FAVORBLACK causes color images to be resampled, but applies the favor-black option to 1-bit, black-and-white images.
	SIZE_RESAMPLE	[0x0002] Use linear interpolation and averaging to produce a higher-quality image.
	SIZE_BICUBIC	[0x0004] Use bicubic interpolation and averaging to produce a higher quality image. This is slower than SIZE_RESAMPLE.

Returns

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

Comments

This function will use the width and height specified in the destination class object for the resize operation.

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::Size, LBuffer::StartResize, LBuffer::Resize, LBuffer::StopResize, LBitmapBase::SizeInterpolate, Class Members
Topics:	Raster Image Functions: Doing Geometric Transformations
	Resizing Considerations

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LBitmapBase__ResizeExample()
{
   L_INT nRet;
   LBitmapBase MyBitmap, ResizeBitmap;
   RGBQUAD Colors[256];
   nRet =MyBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")));
   if(nRet !=SUCCESS)
      return nRet;
   nRet =MyBitmap.GetColors(0, 255, Colors) ;
   if(nRet !=SUCCESS)
      return nRet;
   nRet =ResizeBitmap.Create(100,100,24,ORDER_BGR, Colors,TOP_LEFT,TYPE_CONV);
   if(nRet !=SUCCESS)
      return nRet;
   nRet = MyBitmap.Resize(&ResizeBitmap, sizeof(BITMAPHANDLE), SIZE_NORMAL); //this will resize MyBitmap and put the resized image in ResizeBitmap
   if(nRet !=SUCCESS)
      return nRet;
   return SUCCESS;
}