GDI+: GdipAddPathArc

[José Roca]

The following example creates a GraphicsPath object path, adds an arc to path, closes the arc, and then draws path.

C++

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VOID AddArcExample2(HDC hdc)
{
   Graphics graphics(hdc);

   GraphicsPath path;
   path.AddArc(20.0f, 20.0f, 50.0f, 100.0f, 0.0f, 180.0f);
   path.CloseFigure();
   
   // Draw the path.
   Pen pen(Color(255, 255, 0, 0));
   graphics.DrawPath(&pen, &path);
}


PowerBASIC

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SUB GDIP_AddPathArc (BYVAL hdc AS DWORD)

   LOCAL hStatus AS LONG
   LOCAL pGraphics AS DWORD
   LOCAL pPath AS DWORD
   LOCAL pPen AS DWORD

   hStatus = GdipCreateFromHDC(hdc, pGraphics)

   hStatus = GdipCreatePath(%FillModeAlternate, pPath)
   hStatus = GdipAddPathArc(pPath, 20, 20, 50, 100, 0, 180)
   hStatus = GdipClosePathFigure(pPath)

   ' // Draw the path.
   hStatus = GdipCreatePen1(GDIP_ARGB(255, 255, 0, 0), 1, %UnitWorld, pPen)
   hStatus = GdipDrawPath(pGraphics, pPen, pPath)

   ' // Cleanup
   IF pPen THEN GdipDeletePen(pPen)
   IF pPath THEN GdipDeletePath(pPath)
   IF pGraphics THEN GdipDeleteGraphics(pGraphics)

END SUB