The following example draws a sequence of connected lines.
C++
VOID Example_DrawLines2(HDC hdc)
{
Graphics graphics(hdc);
// Create a Pen object.
Pen blackPen(Color(255, 0, 0, 0), 3);
// Create an array of PointF objects that define the lines to draw.
PointF point1(10.0f, 10.0f);
PointF point2(10.0f, 100.0f);
PointF point3(200.0f, 50.0f);
PointF point4(250.0f, 300.0f);
PointF points[4] = {point1, point2, point3, point4};
PointF* pPoints = points;
// Draw the lines.
graphics.DrawLines(&blackPen, pPoints, 4);
}
SUB GDIP_DrawLines (BYVAL hdc AS DWORD)
LOCAL hStatus AS LONG
LOCAL pGraphics AS DWORD
LOCAL pPen AS DWORD
DIM pts(3) AS POINTF
hStatus = GdipCreateFromHDC(hdc, pGraphics)
' // Create a Pen
hStatus = GdipCreatePen1(GDIP_ARGB(255,0, 0, 0), 1, %UnitPixel, pPen)
' // Create an array of PointF objects that define the lines to draw.
pts(0).x = 10.0! : pts(0).y = 10.0!
pts(1).x = 10.0! : pts(1).y = 100.0!
pts(2).x = 200.0! : pts(2).y = 50.0!
pts(3).x = 250.0! : pts(3).y = 300.0!
' // Draw the lines
GdipDrawLines pGraphics, pPen, pts(0), 4
' // Cleanup
IF pPen THEN GdipDeletePen(pPen)
IF pGraphics THEN GdipDeleteGraphics(pGraphics)
END SUB
(http://www.jose.it-berater.org/captures/GdipDrawLines.png)