References ▼
#include "Ltwrappr.h"
L_INT LRasterPaint::GetClipRgn(phClipRgn)
Gets the current clipping region, set using the LRasterPaint::SetClipRgn function.
Pointer to a Windows region handle to be updated with the current clipping region.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes |
The phClipRgn parameter is updated with a windows region, which is a snapshot of the current clipping region, used by the toolkit. The user is responsible for deleting this region.
Required DLLs and Libraries
L_INT LRasterPaint_GetClipRgnExample( LRasterPaint* pRstp ){L_INT nRet;HRGN hRgn, hClipRgn ;/* create some region */hRgn = CreateRectRgn ( 0, 0, 100, 100 ) ;/* get the current painting tools clip region */nRet = pRstp->GetClipRgn ( &hClipRgn ) ;if(nRet != SUCCESS)return nRet;/* combine the regions */CombineRgn ( hRgn, hClipRgn, hRgn, RGN_OR ) ;/* set the painting tools new clip region */nRet = pRstp->SetClipRgn ( hRgn ) ;if(nRet != SUCCESS)return nRet;/* delete the regions */DeleteObject ( ( HRGN ) hRgn ) ;DeleteObject ( ( HRGN ) hClipRgn ) ;return SUCCESS;}