C# Winform 让整个窗口都可以拖动

调用Windows API：

[DllImport("user32.dll")]
public static extern bool ReleaseCapture();

[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

private void frmMain_MouseDown(object sender, MouseEventArgs e)
{
    ReleaseCapture();
    SendMessage(this.Handle, 0x0112, 0xF012, 0);
}

调用方法：重写当前窗体的鼠标按下去的事件：

protected override void OnMouseDown(MouseEventArgs e);

示例如下：

protected override void OnMouseDown(MouseEventArgs e)
{
    base.OnMouseDown(e);
    frmMain_MouseDown(this, e);
}

这样，当拖动窗体空白区域时这个窗体就可以拖动了。

转载于:https://www.cnblogs.com/jRoger/articles/2647978.html