Drag the mouse dynamically draw rectangle, curve,
2016-08-23
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Create a graphical list (which can be an Shape array, or use the container class List< T>) to save the graphics for the interface to draw..2 application toolbar can specify the type of graphics described in 13 receive the user's mouse operation, click the left button to start drawing, and drag the mouse to draw temporary graphics, release the mouse to determine graphics, add graphics list4 can refresh the window, when the maximum of the window to minimize the adjustment can re draw graphics.Key Technology
void pictureBox1_MouseDown private (sender MouseEventArgs, e object) { if (e.Button = MouseButtons.Left)&n;  c#
曲线
拖动
动态
直线
矩形
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