The following example creates a region from a path and fills it. The code then translates the region and fills the translated region to show how the region has shifted.
C++
VOID Example_Translate(HDC hdc)
{
Graphics graphics(hdc);
Point points[] = {
Point(110, 20),
Point(120, 30),
Point(100, 60),
Point(120, 70),
Point(150, 60),
Point(140, 10)};
GraphicsPath path;
SolidBrush solidBrush(Color(255, 255, 0, 0));
path.AddClosedCurve(points, 6);
// Create a region from a path.
Region pathRegion(&path);
graphics.FillRegion(&solidBrush, &pathRegion);
// Translate the region.
INT dx = 100;
INT dy = 60;
pathRegion.Translate(dx, dy);
graphics.FillRegion(&solidBrush, &pathRegion);
}
SUB GDIP_TranslateRegion (BYVAL hdc AS DWORD)
LOCAL hStatus AS LONG
LOCAL pGraphics AS DWORD
LOCAL pPath AS DWORD
LOCAL pSolidBrush AS DWORD
LOCAL pPathRegion AS DWORD
DIM pts(5) AS POINTL
hStatus = GdipCreateFromHDC(hdc, pGraphics)
pts(0).x = 110 : pts(0).y = 20
pts(1).x = 120 : pts(1).y = 30
pts(2).x = 100 : pts(2).y = 60
pts(3).x = 120 : pts(3).y = 70
pts(4).x = 150 : pts(4).y = 60
pts(5).x = 140 : pts(5).y = 10
hStatus = GdipCreatePath(%FillModeAlternate, pPath)
hStatus = GdipCreateSolidFill(GDIP_ARGB(255, 255, 0, 0), pSolidBrush)
hStatus = GdipAddPathClosedCurveI(pPath, pts(0), 6)
' // Create a region from a path.
hStatus = GdipCreateRegionPath(pPath, pPathRegion)
hStatus = GdipFillRegion(pGraphics, pSolidBrush, pPathRegion)
' // Translate the region.
LOCAL dx AS LONG
LOCAL dy AS LONG
dx = 100
dy = 60
hStatus = GdipTranslateRegionI(pPathRegion, dx, dy)
hStatus = GdipFillRegion(pGraphics, pSolidBrush, pPathRegion)
' // Cleanup
IF pPathRegion THEN GdipDeleteRegion(pPathRegion)
IF pSolidBrush THEN GdipDeleteBrush(pSolidBrush)
IF pPath THEN GdipDeletePath(pPath)
IF pGraphics THEN GdipDeleteGraphics(pGraphics)
END SUB
The following illustration shows the output of the preceding code.
(http://www.jose.it-berater.org/captures/GdipTranslateRegion.png)