LBitmapRgn::SetRgnEllipse
#include "ltwrappr.h"
virtual L_INT LBitmapRgn::SetRgnEllipse(pRect)
LPRECT pRect; |
/* pointer to the bounding rectangle of the region */ |
Creates or updates the associated class object's bitmap region by adding an elliptical region.
Parameter |
Description |
pRect |
Pointer to the windows RECT structure that specifies the bounding rectangle of the elliptical region. You specify the structure using device context coordinates, and LEADTOOLS translates the coordinates using the values set using LBitmapRgn::SetRgnXForm. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
To update an existing region, you specify how the new region is to be combined with the existing one. For descriptions of the possibilities, refer to Creating a Bitmap Region.
Required DLLs and Libraries
LTDIS For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Example
L_INT LBitmapRgn__SetRgnEllipseExample() { L_INT nRet; LBitmapBase MyBitmap(200,300,ORDER_BGR); RECT Rect={10,10,50,200}; nRet =MyBitmap.Load(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\image1.cmp")); if(nRet !=SUCCESS) return nRet; LBitmapRgn Region(&MyBitmap); // check if the bitmap region is valid or not if (Region.IsValid() ==FALSE) Region.SetBitmap(&MyBitmap); Region.SetRgnEllipse(&Rect); //set the ellipse as a region //… return SUCCESS; }