LPaintEffect::PaintRgnDCEffect

#include "ltwrappr.h"

virtual L_INT LPaintEffect::PaintRgnDCEffect(uEffect=EFX_EFFECT_NONE, uROP3=SRCCOPY)

L_UINT uEffect;	/* effect to apply when painting */
L_UINT32 uROP3;	/* Windows ROP code for display */

Applies an effect when painting the class object's associated bitmap to the class object's associated device context.

Parameter	Description
uEffect	Effect to apply when painting. For valid values, refer to Effect Types.
uROP3	The Windows ROP code that determines how the destination rectangle is updated. This parameter takes the same codes as the Windows BitBlt function. For ordinary painting, use SRCCOPY.

Returns

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

Required DLLs and Libraries

LTDIS
LTEFX

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:	Class Members
Topics:	Implementing Special Effects

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LPaintEffect__PaintRgnDCEffectExample(HWND hWnd)
{
   L_INT nRet;
   LBitmapBase LeadBitmap;
   LBitmapRgn LeadRegion;
   LPaintEffect LeadPaintEffect ;
   HDC hDC ;
   RECT Rect ;
   nRet = LeadBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp"))) ;
   if(nRet != SUCCESS)
      return nRet;
   Rect.left = 10 ;
   Rect.top = 10 ;
   Rect.right = 50 ;
   Rect.bottom = 50 ;
   LeadRegion.SetBitmap(&LeadBitmap) ;
   nRet = LeadRegion.SetRgnRect(&Rect);
   if(nRet != SUCCESS)
      return nRet;
   hDC = GetDC(hWnd);
   LeadPaintEffect.SetBitmap(&LeadBitmap) ;
   LeadPaintEffect.SetDC(hDC) ;
   nRet = LeadPaintEffect.PaintRgnDCEffect(EFX_EFFECT_WIPE_L_TO_R) ;
   if(nRet != SUCCESS)
      return nRet;
   LeadPaintEffect.SetDC(0) ;
   ReleaseDC(hWnd,hDC) ;
   return SUCCESS;
}