Help Version 19.0.2017.10.27
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#include "Ltwrappr.h"
L_INT LRasterPaint::GetClipRgn(phClipRgn)
pHRGN phClipRgn; |
pointer to a Windows region handle |
Gets the current clipping region, set using the LRasterPaint::SetClipRgn function.
Parameter |
Description |
phClipRgn |
Pointer to a Windows region handle to be updated with the current clipping region. |
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
LTPNT For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
Functions: |
LRasterPaint::SetClipRgn, LRasterPaint::OffsetClipRgn, Class Members |
Topics: |
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;}