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GDI+: GdipSetPenEndCap

Started by José Roca, July 03, 2008, 03:53:41 AM

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José Roca



The following example creates a Pen object, sets the end cap, and draws a line. The code then resets the end cap, draws a second line, resets the end cap again, and draws a third line.

C++


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

   // Create a Pen object.
   Pen pen(Color(255, 0, 0, 255), 15);

   // Set the end cap of the pen, and draw a line.
   pen.SetEndCap(LineCapArrowAnchor);
   graphics.DrawLine(&pen, 0, 50, 400, 150);

   // Reset the end cap, and draw a second line.
   pen.SetEndCap(LineCapTriangle);
   graphics.DrawLine(&pen, 0, 80, 400, 180);

   // Reset the end cap, and draw a third line.
   pen.SetEndCap(LineCapRound);
   graphics.DrawLine(&pen, 0, 110, 400, 210); 
}


PowerBASIC


SUB GDIP_SetPenEndCap (BYVAL hdc AS DWORD)

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

   hStatus = GdipCreateFromHDC(hdc, pGraphics)

   ' // Create a Pen object.
   hStatus = GdipCreatePen1(GDIP_ARGB(255, 0, 0, 255), 15, %UnitWorld, pPen)

   ' // Set the end cap of the pen, and draw a line.
   hStatus = GdipSetPenEndCap(pPen, %LineCapArrowAnchor)
   hStatus = GdipDrawLineI(pGraphics, pPen, 0, 50, 400, 150)

   ' // Reset the end cap, and draw a second line.
   hStatus = GdipSetPenEndCap(pPen, %LineCapTriangle)
   hStatus = GdipDrawLineI(pGraphics, pPen, 0, 80, 400, 180)

   ' // Reset the end cap, and draw a third line.
   hStatus = GdipSetPenEndCap(pPen, %LineCapRound)
   hStatus = GdipDrawLineI(pGraphics, pPen, 0, 110, 400, 210)

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

END SUB