判断程序假死 挂起的方法

方法一：判断程序的线程是否Responding。

方法二：API方法 IsHungAppWindow

<span style="white-space:pre">	</span>#region 窗体是否挂起
[DllImport("User32.dll", CharSet = CharSet.Auto)]
public static extern bool IsHungAppWindow(IntPtr hwnd);
#endregion

方法三：API 给程序发送消息 SendMessageTimeout

public enum SendMessageTimeoutFlags : uint
{
SMTO_NORMAL = 0x0,
SMTO_BLOCK = 0x1,
WM_NULL = 0,
SMTO_ABORTIFHUNG = 0x2,
SMTO_NOTIMEOUTIFNOTHUNG = 0x8
}

[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        public static extern IntPtr SendMessageTimeout(
            IntPtr windowHandle,
            uint Msg,
            IntPtr wParam,
            IntPtr lParam,
            SendMessageTimeoutFlags flags,
            uint timeout,
            out uint result);

public static bool IsExeNotResponse(IntPtr hwnd)
{
var lRes = uint.MinValue;
//Register the message
var lMsg = RegisterWindowMessage("WM_HTML_GETOBJECT");
//Get the object
SendMessageTimeout(hwnd, lMsg, IntPtr.Zero, IntPtr.Zero, SendMessageTimeoutFlags.WM_NULL, 1000, out lRes);
return lRes == 0;

}

总结：