References ▼
#include "LtPnt.h"
L_LTPNT_API L_INT L_PntRegionTranslate(pPaint, dx, dy, phDestRgn)
Translates (offsets) a region.
Pointer to a paint handle.
X-coordinate offset.
Y-coordinate offset.
Pointer to the region to be translated. After translation, the toolkit will delete the old region and replace it with the new one.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
The values for dx and dy will be used "as is". No transformation will be performed on these values.
The user is responsible for deleting the resulting region.
Required DLLs and Libraries
L_INT PntRegionTranslateExample(HWND hWnd){L_INT nRet;pPAINTHANDLE pPaint ;HDC hDC ;RECT rcRegion ;HRGN hRgn ;/* Initiate the Paint toolkit */nRet = L_PntInit ( &pPaint );if ( SUCCESS != nRet ){return nRet;}/* Get the device context */hDC = GetDC ( hWnd ) ;/* Set the coordinates with respect to the DC dimensions*/SetRect ( &rcRegion, 10, 10, 100, 100 ) ;/* Use the current region properties and the current paintingtrasnformations to create a rectangle region */nRet = L_PntRegionRect ( pPaint, hDC, &rcRegion, &hRgn) ;if(nRet != SUCCESS)return nRet;/* Translate the region */nRet = L_PntRegionTranslate ( pPaint, 50, 50, &hRgn ) ;if(nRet != SUCCESS)return nRet;/* Display the resulted region */FrameRgn ( hDC, hRgn, ( HBRUSH ) GetStockObject ( BLACK_BRUSH ), 1, 1 ) ;/* Release the device context */ReleaseDC ( hWnd, hDC ) ;/*Delete the region */DeleteObject ( hRgn ) ;/* Free the paint tools handle */L_PntFree ( pPaint ) ;return SUCCESS ;}