问题描述
public void drawPoint（int x，int y，SolidBrush brush）
{
Graphics g = Graphics.FromHwnd（pictureBox1.Handle）;
Point dPoint = new Point（x，（pictureBox1.Height - y））;
dPoint.X = dPoint.X - 2;
dPoint.Y = dPoint.Y - 2;
Rectangle rect = new Rectangle（dPoint，new Size（5,5））;
g.FillRectangle（brush，rect）;
g.Dispose（）;
}
int a = 0;
int b = 0;
private void pictureBox1_Paint（object sender，System.Windows.Forms.PaintEventArgs e）
{
使用（Graphics graphic = pictureBox1.CreateGraphics（））
{
graphic.DrawImage（pictureBox1.Image，e。 ClipRectangle，a，b，e.ClipRectangle.Width，
e。 ClipRectangle.Height，GraphicsUnit.Pixel）;
//e.Graphics.DrawImage(pictureBox1.Image,e.ClipRectangle，a，b，e.ClipRectangle.Width，e.ClipRectangle.Height，GraphicsUnit .Pixel）;
}
}
public void drawPoint(int x, int y, SolidBrush brush)
{
Graphics g = Graphics.FromHwnd(pictureBox1.Handle);
Point dPoint = new Point(x, (pictureBox1.Height - y));
dPoint.X = dPoint.X - 2;
dPoint.Y = dPoint.Y - 2;
Rectangle rect = new Rectangle(dPoint, new Size(5, 5));
g.FillRectangle(brush, rect);
g.Dispose();
}
int a = 0;
int b = 0;
private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
using (Graphics graphic = pictureBox1.CreateGraphics())
{
graphic.DrawImage(pictureBox1.Image, e.ClipRectangle, a, b, e.ClipRectangle.Width,
e.ClipRectangle.Height, GraphicsUnit.Pixel);
//e.Graphics.DrawImage(pictureBox1.Image, e.ClipRectangle, a, b, e.ClipRectangle.Width,e.ClipRectangle.Height, GraphicsUnit.Pixel);
}
}
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