Interactive PowerBasic Forum

The following example creates a Pen object and sets the compound array for the pen. The code then draws a line using the Pen object.

C++


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

   // Create an array of real numbers and a Pen object.
   REAL compVals[6] = {0.0f, 0.2f, 0.5f, 0.7f, 0.9f, 1.0f};
   Pen pen(Color(255, 0, 0, 255), 30);

   // Set the compound array of the pen.
   pen.SetCompoundArray(compVals, 6);

   // Draw a line with the pen.
   graphics.DrawLine(&pen, 5, 20, 405, 200);
}


PowerBASIC


SUB GDIP_SetPenCompoundArray (BYVAL hdc AS DWORD)

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

   hStatus = GdipCreateFromHDC(hdc, pGraphics)

   ' // Create an array of real numbers and a Pen object.
   DIM compVals(5) AS SINGLE
   ARRAY ASSIGN compVals() = 0.0!, 0.2!, 0.5!, 0.7!, 0.9!, 1.0!
   hStatus = GdipCreatePen1(GDIP_ARGB(255, 0, 0, 255), 30, %UnitWorld, pPen)

   ' // Set the compound array of the pen.
   hStatus = GdipSetPenCompoundArray(pPen, compVals(0), 6)

   ' // Draw a line with the pen.
   hStatus = GdipDrawLineI(pGraphics, pPen, 5, 20, 405, 200)

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

END SUB


The following illustration shows the output of the preceding code.

(http://www.jose.it-berater.org/captures/GdipSetPenCompoundArray.png)