virtual L_INT LBitmapRgn::GetRgnBounds(pRect)
Gets the bounding rectangle of the associated class object's bitmap region.
Address of the RECT variable to updated with the bounding rectangle.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
Win32, x64.
L_INT LBitmapRgn__GetRgnBoundsExample(HWND hWnd)
{
L_INT nRet;
L_SIZE_T dwArea ;
LBitmapBase MyBitmap(200,300,ORDER_BGR);
RECT rc, Rect={10,10,350,400};
nRet = MyBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")));
if(nRet !=SUCCESS)
return nRet;
LBitmapRgn Region(&MyBitmap);
//set the round rect as a region
nRet =Region.SetRgnRoundRect(&Rect,30,40);
if(nRet !=SUCCESS)
return nRet;
nRet =Region.GetRgnBounds(&rc);
if(nRet !=SUCCESS)
return nRet;
// Get the number of pixels in the region
nRet =Region.GetRgnArea( &dwArea);
if(nRet !=SUCCESS)
return nRet;
if (Region.BitmapHasRgn() == FALSE)
MessageBox(hWnd, TEXT("Bitmap has region"), TEXT("Region Error"), MB_OK);
return SUCCESS;
}
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