如何在Visual C ++中绘制字段行？ [英] how to draw filed lines in Visual C++ ?

问题描述

i希望在VC ++中围绕许多物体（2D线条，线条，椭圆，多边形等）绘制场线（如磁力）。

可以帮我吗？



谢谢

Hi,
i want to draw field lines( like in magnetism) around many objects ( 2D draw like lines, rects, ellipses, polygones..) in VC++.
could please help me?

Thanks

推荐答案

Do the following code inside the OnPaint function:

CPaintDC d(this);
// Line
d.MoveTo(20,40);
d.LineTo(80,40);
// Rect
d.Rectangle(10,20,200,10);
// Round rect
d.RoundRect(10,120,200,220,20,20);
//ellipse
d.Ellipse(10,240,200,340);

//pie
d.Pie(250,10,350,110,350,110,350,10);
//polygon
POINT pt[5] = { 250,150,250,300,300,350,400,300,320,190};

d.Polygon(pt,5);

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