/// <summary>
/// 设置一个值，该值指示控件是否已捕获鼠标。
/// </summary>
/// <param name="hWnd">控件句柄。</param>
/// <param name="value">如果控件已捕获鼠标，则为 true；否则为 false。</param>
public static void SetCapture(IntPtr hWnd, bool value)
{
if (value)
{
UnsafeNativeMethods.SetCapture(hWnd);
}
else
{
UnsafeNativeMethods.ReleaseCapture();
}
}
/// <summary>
/// 开始拖动窗口
/// </summary>
/// <param name="hWnd">窗口句柄</param>
public static void BeginDrag(IntPtr hWnd)
{
UnsafeNativeMethods.ReleaseCapture();
UnsafeNativeMethods.SendMessage(hWnd, NativeMethods.WM_SYSCOMMAND, NativeMethods.SC_MOVE | NativeMethods.HTCAPTION, 0);
}