C#调用api 如何关闭弹出的窗体

Question

在keydown之前开一个线程
然后这里面去点击确定

Answer 1

是API函数，不是系统命令发送消息。
SendMessageA (窗口句柄, 16, 0, 0)
网上找的 据说能解决

Answer 2

你要找到弹出窗口的hWnd，发一条WM_CLOSE消息过去，一般都可以把他关闭。你怕卡死在那可以用SendMessageTimeOut()去发

Answer 3

试试 这个
SetMessage (int hWnd,int Msg, int wParam,int lParam )
 Msg 为2或16 可以关闭指定句柄窗口，

Answer 4

好像我用过这个我 的意思 是 不关闭 窗体 如果 关闭窗体 那我就 获取 不到 窗体上面 的button 按钮 的句柄了 啊，我 想实现 的 是 弹出 窗体 之后 我 执行 获取 button 按钮 句柄 的代码，现在是 窗体弹出 值后 程序 就 停留 在 SendMessage(intPtr, WM_KEYDOWN, 13, 0); 这个函数 里了，不继续 向下执行 ，有什么方法 让 窗体 弹出 之后 继续 向下 执行 函数

Answer 5

+1
其实楼主犯难的不是如何关闭窗体，而是SendMessage(intPtr, WM_KEYDOWN, 13, 0);之后，代码卡在那里了（试过就知道了），所以开子线程可以有效解决这个问题。        private void SendEnterClick(IntPtr intPtr)
        {
            Thread thread = new Thread(CloseWin);
            thread.Start();            SendMessage(intPtr, WM_KEYDOWN, 13, 0);
            SendMessage(intPtr, WM_CHAR, 13, 0);
            SendMessage(intPtr, WM_KEYUP, 13, 0);
            GetHsCodeHandle();
            GetOkHandle();
            SendMessage(intPtrOk, WM_LBUTTONDOWN, 0, 20 + (5 << 16));
            SendMessage(intPtrOk, WM_LBUTTONUP, 0, 20 + (5 << 16));
        }        public const int WM_SYSCOMMAND = 0x0112;
        public const int SC_CLOSE = 0xF060; 
        private void CloseWin()
        {
            while(true)
            {
                IntPtr intPtr = FindWindow(null, "弹出界面");
                if (intPtr != IntPtr.Zero)
                {
                    SendMessage(intPtr, WM_SYSCOMMAND, SC_CLOSE,0);
                    break;
                }
                Thread.Sleep(1000);
            }
        }

Answer 6

+1
其实楼主犯难的不是如何关闭窗体，而是SendMessage(intPtr, WM_KEYDOWN, 13, 0);之后，代码卡在那里了（试过就知道了），所以开子线程可以有效解决这个问题。        private void SendEnterClick(IntPtr intPtr)
        {
            Thread thread = new Thread(CloseWin);
            thread.Start();            SendMessage(intPtr, WM_KEYDOWN, 13, 0);
            SendMessage(intPtr, WM_CHAR, 13, 0);
            SendMessage(intPtr, WM_KEYUP, 13, 0);
            GetHsCodeHandle();
            GetOkHandle();
            SendMessage(intPtrOk, WM_LBUTTONDOWN, 0, 20 + (5 << 16));
            SendMessage(intPtrOk, WM_LBUTTONUP, 0, 20 + (5 << 16));
        }        public const int WM_SYSCOMMAND = 0x0112;
        public const int SC_CLOSE = 0xF060; 
        private void CloseWin()
        {
            while(true)
            {
                IntPtr intPtr = FindWindow(null, "弹出界面");
                if (intPtr != IntPtr.Zero)
                {
                    SendMessage(intPtr, WM_SYSCOMMAND, SC_CLOSE,0);
                    break;
                }
                Thread.Sleep(1000);
            }
        }
问题是 我 的这些 代码 已经 是 在 一个线程 里了啊 ，不是 主线程 如果 子线程 中 在开 一个 线程 这样 合理吗

Answer 7

看了7楼才明白楼主的意思。修改一下
        private void SendEnterClick(IntPtr intPtr)
        {
            Thread thread = new Thread(CloseWin);
            thread.Start();
 
            SendMessage(intPtr, WM_KEYDOWN, 13, 0);
            
        }
 
        private void CloseWin()
        {
            while(true)
            {
                IntPtr intPtr = FindWindow(null, "弹出界面");
                if (intPtr != IntPtr.Zero)
                {
                    SendMessage(intPtr, WM_CHAR, 13, 0);
                    SendMessage(intPtr, WM_KEYUP, 13, 0);
                    GetHsCodeHandle();
                    GetOkHandle();
                    SendMessage(intPtrOk, WM_LBUTTONDOWN, 0, 20 + (5 << 16));
                    SendMessage(intPtrOk, WM_LBUTTONUP, 0, 20 + (5 << 16));
                    break;
                }
                Thread.Sleep(1000);
            }
        }