virtual L_INT LPaintEffect::PaintRgnDCEffect(uEffect=EFX_EFFECT_NONE, uROP3=SRCCOPY)
Applies an effect when painting the class object's associated bitmap to the class object's associated device context.
Effect to apply when painting. For valid values, refer to Effect Types.
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.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
Win32, x64.
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;
}
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