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1.间距长度固定为两个像素

LOGBRUSH LogBrush;LogBrush.lbColor = c_colorGridLine;LogBrush.lbStyle = PS_SOLID;CPen penDotted;penDotted.CreatePen( PS_COSMETIC | PS_ALTERNATE , 1, &LogBrush, 0, NULL );

void CExampleView::OnDraw(CDC* pDC){ CExampleDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); // TODO: add draw code for native data here using namespace Gdiplus; Graphics graphics(pDC->m_hDC); float dashValues[] = {1, 5}; //像素长度为1，间距长度为5 Pen blackPen(Color(0,0,0), 0); blackPen.SetDashPattern(dashValues,2); graphics.DrawLine(&blackPen, Point(5, 15), Point(225, 15)); }

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