Question

c# 如何按住一个控件时,可以利用这个控件移动窗体位置

�0�2 �0�2源代码，已测试

private Point mouse_offset;
private void button1_MouseDown(object sender, MouseEventArgs e)
{
mouse_offset = new Point(-e.X, -e.Y);
}

private void button1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
Point mousePos = Control.MousePosition;
mousePos.Offset(mouse_offset.X, mouse_offset.Y);//设置偏移
this.button1.Location = this.PointToClient(mousePos);
}
}

�0�2这是您回答的答案 ， 请您能否详细说下每一步的原因呢 ？�0�2或许大致说下每一步的意思 ，由于我是新手 ， 所以麻烦您了 。�0�2谢谢 。

Answer 1

private Point mouse_offset; //记录位置
private void button1_MouseDown(object sender, MouseEventArgs e)
{
mouse_offset = new Point(-e.X, -e.Y);
}

private void button1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left) //如果是左击鼠标
{
Point mousePos = Control.MousePosition; //获取鼠标的位置
mousePos.Offset(mouse_offset.X, mouse_offset.Y);//设置偏移
this.button1.Location = this.PointToClient(mousePos);
}
}