The following example draws a group of rectangles.
C++
VOID Example_DrawRectangles2(HDC hdc)
{
Graphics graphics(hdc);
// Create a Pen object.
Pen blackPen(Color(255, 0, 0, 0), 3);
// Create an array of RectF objects.
RectF rect1(0.0f, 0.0f, 100.0f, 200.0f);
RectF rect2(100.0f, 200.0f, 250.0f, 50.0f);
RectF rect3(300.0f, 0.0f, 50.0f, 100.0f);
RectF rects[] = {rect1, rect2, rect3};
RectF* pRects = rects;
// Draw the rectangles.
graphics.DrawRectangles(&blackPen, pRects, 3);
}
SUB GDIP_DrawRectangles (BYVAL hdc AS DWORD)
LOCAL hStatus AS LONG
LOCAL pGraphics AS DWORD
LOCAL pPen AS DWORD
LOCAL x AS SINGLE
LOCAL y AS SINGLE
LOCAL nWidth AS SINGLE
LOCAL nHeight AS SINGLE
hStatus = GdipCreateFromHDC(hdc, pGraphics)
' // Create a Pen
hStatus = GdipCreatePen1(GDIP_ARGB(255,0, 0, 0), 3, %UnitPixel, pPen)
' // Create an array of RectF structures.
DIM rc(2) AS RECTF
rc(0).x = 0.0! : rc(0).y = 0.0! : rc(0).Width = 100.0! : rc(0).Height = 200.0!
rc(1).x = 100.0! : rc(1).y = 200.0! : rc(1).Width = 250.0! : rc(1).Height = 50.0!
rc(2).x = 300.0! : rc(2).y = 0.0! : rc(2).Width = 50.0! : rc(2).Height = 100.0!
' // Draw the rectangles
hStatus = GdipDrawRectangles(pGraphics, pPen, rc(0), 3)
' // Cleanup
IF pPen THEN GdipDeletePen(pPen)
IF pGraphics THEN GdipDeleteGraphics(pGraphics)
END SUB
(http://www.jose.it-berater.org/captures/GdipDrawRectangles.png)