GDI+: GdipFillPolygon

[José Roca]

The following example defines a polygon and fills it.

C++

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VOID Example_FillPolygon4(HDC hdc)
{
   Graphics graphics(hdc);

   // Create a SolidBrush object.
   SolidBrush blackBrush(Color(255, 0, 0, 0));

   // Create an array of PointF objects that define the polygon.
   PointF point1(100.0f, 100.0f);
   PointF point2(200.0f, 130.0f);
   PointF point3(150.0f, 200.0);
   PointF point4(50.0f, 200.0f);
   PointF point5(0.0f, 130.0f);
   PointF points[5] = {point1, point2, point3, point4, point5};

   // Fill the polygon.
   graphics.FillPolygon(&blackBrush, points, 5, FillModeAlternate);
}


PowerBASIC

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SUB GDIP_FillPolygon (BYVAL hdc AS DWORD)

   LOCAL hStatus AS LONG
   LOCAL pGraphics AS DWORD
   LOCAL pBrush AS DWORD
   DIM   pt(4) AS POINTF

   hStatus = GdipCreateFromHDC(hdc, pGraphics)

   ' // Create a SolidBrush
   hStatus = GdipCreateSolidFill(GDIP_ARGB(255, 0, 0, 0), pBrush)

   ' // Create an array of PointF objects that define the polygon.
   pt(0).x = 100.0! : pt(0).y = 100.0!
   pt(1).x = 150.0! : pt(1).y = 130.0!
   pt(2).x = 150.0! : pt(2).y = 200.0!
   pt(3).x = 50.0!  : pt(3).y = 200.0!
   pt(4).x = 0.0!   : pt(4).y = 130.0!

   ' // Fill the polygon.
   hStatus = GdipFillPolygon(pGraphics, pBrush, pt(0), 5, %FillModeAlternate)

   ' // Cleanup
   IF pBrush THEN GdipDeleteBrush(pBrush)
   IF pGraphics THEN GdipDeleteGraphics(pGraphics)

END SUB