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LPaintEffect::PaintRgnDCEffect

Summary

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

Syntax

#include "ltwrappr.h"

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

Parameters

L_UINT uEffect

Effect to apply when painting. For valid values, refer to Effect Types.

L_UINT32 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

Value	Meaning
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.

Example

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; 
}