方法一：API调用
//添加引用 using System.Runtime.InteropServices;
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
void FrmWeather_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
ReleaseCapture();
SendMessage(Handle, 0xA1, 0x02, 0);
}
}
//调用
//MouseDown += new MouseEventHandler(FrmWeather_MouseDown);
方法二：
//鼠标移动位置变量
Point mouseOff;
//标签是否为左键
bool leftFlag;
private void Form_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
//得到变量的值
mouseOff = new Point(-e.X, -e.Y);
//点击左键按下时标注为true;
leftFlag = true;
}
}
private void Form_MouseMove(object sender, MouseEventArgs e)
{
if (leftFlag)
{
Point mouseSet = Control.MousePosition;
//设置移动后的位置
mouseSet.Offset(mouseOff.X, mouseOff.Y);
Location = mouseSet;
}
}
private void Form_MouseUp(object sender, MouseEventArgs e)
{
if (leftFlag)
{
//释放鼠标后标注为false;
leftFlag = false;
}
}
//调用
// MouseDown += new MouseEventHandler(Form_MouseDown);
// MouseMove += new MouseEventHandler(Form_MouseMove);
// MouseUp += new MouseEventHandler(Form_MouseUp);
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