// 设置固定翻译坐标
        private void button2_SetPosition_Click(object sender, EventArgs e)
        {
            string savePath = DateTime.Now.ToString("yyyy-dd-MM_HH_mm_ss") + ".bmp";

            FrmScreenShot shot = new FrmScreenShot(savePath, true);

            try
            {
                // 显示截图窗口
                DialogResult result = shot.ShowDialog();
                if (result == DialogResult.Cancel)
                {
                    throw new Exception("用户取消截图!");
                }

                POINT p = new POINT();
                p.X = shot.MouseDownPoint.X;
                p.Y = shot.MouseDownPoint.Y;

                IntPtr hwnd = FindWindow("grcWindow", null);
                if (IntPtr.Zero == hwnd)
                {
                    throw new Exception("找不到GTA窗口句柄");
                }
                // 屏幕坐标转为客户端窗口坐标
                ScreenToClient(hwnd, ref p);

                // 保存截图坐标高宽
                screenRect = new Rectangle(p.X, p.Y, shot.ScreenWidth, shot.ScreenHeight);
                if (shot.ScreenWidth > 0 && shot.ScreenHeight > 0)
                {
                    MessageBox.Show("设置成功,请点击“保存配置”按钮。", "截图翻译", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                else
                {
                    throw new Exception("设置失败,请重试!");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("设置固定翻译坐标失败!\n原因:" + ex.Message, "截图翻译", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            finally
            {
                if (File.Exists(savePath))
                {
                    File.Delete(savePath);
                }

                if (shot != null && !shot.IsDisposed)
                {
                    shot.Dispose();
                }
            }
        }
        // 截图翻译
        private void ScreenTran()
        {
            string savePath = DateTime.Now.ToString("yyyy-dd-MM_HH_mm_ss") + ".bmp";
            string from = "en", src, dst = null;

            FrmScreenShot shot = new FrmScreenShot(savePath, true);

            try
            {   // 截图翻译并显示
                if (tranMode == TranMode.TranAndShowText)
                {
                    Thread.Sleep(200);

                    // 如果是固定区域翻译(isFixedScreen = true则视为固定区域翻译)
                    if (isFixedScreen == true)
                    {
                        if (screenRect.Width <= 0 || screenRect.Height <= 0)
                        {
                            throw new Exception("请设置固定截图翻译坐标!");
                        }

                        IntPtr hwnd = FindWindow("grcWindow", null);
                        if (IntPtr.Zero == hwnd)
                        {
                            throw new Exception("找不到GTA窗口句柄");
                        }

                        POINT p = new POINT();
                        p.X = screenRect.X;
                        p.Y = screenRect.Y;
                        ClientToScreen(hwnd, ref p);
                        Screenshot(savePath, p.X, p.Y, screenRect.Width, screenRect.Height);

                        // 如果文件不存在,则视为截图失败
                        if (!File.Exists(savePath))
                        {
                            throw new Exception("固定区域截图失败!");
                        }
                    }
                    else
                    {
                        // 显示截图窗口
                        DialogResult result = shot.ShowDialog();

                        // 如果文件不存在,则视为用户取消截图
                        if (!File.Exists(savePath) || result == DialogResult.Cancel)
                        {
                            return;
                        }
                    }

                    // 翻译模式isEnToZh=true为英译中,false为俄译中
                    if (isEnToZh == false)
                    {
                        from = "ru";
                    }

                    // sourceOfTran有“有道”两字使用有道翻译,否则使用百度翻译
                    if (sourceOfTran.IndexOf("有道") != -1)
                    {
                        Youdao.YoudaoTran(savePath, from, "zh-CHS", out src, out dst);
                    }
                    else
                    {
                        Baidu.BaiduTran(savePath, from, "zh", out src, out dst);
                    }

                    if (copySourceTextToClip)
                    {
                        Clipboard.SetText(src);// 复制原文到剪切板
                    }
                    if (copyDestTextToClip)
                    {
                        Clipboard.SetText(dst);// 复制译文到剪切板
                    }
                    if (isSpeak)
                    {
                        SpeechSynthesizer speech = new SpeechSynthesizer();
                        speech.Rate = 3;   // 语速
                        speech.SpeakAsync(dst);
                    }
                }
                else
                {
                    dst = showCont;
                }

                // 不为空
                if (!string.IsNullOrEmpty(dst))
                {
                    using (FrmShowCont sc = new FrmShowCont(showTime))
                    {
                        sc.ContText(dst);
                        sc.ShowDialog();
                    }
                }
            }
            catch (Exception ex)
            {
                if (ex.GetType().FullName == "System.Threading.ThreadAbortException")
                {
                    return;
                }

                dst = "错误:" + ex.Message;
                // 显示错误
                using (FrmShowCont sc = new FrmShowCont(showTime))
                {
                    sc.ContText(dst);
                    sc.ShowDialog();
                }
            }
            finally
            {
                if (File.Exists(savePath))
                {
                    File.Delete(savePath);
                }

                if (shot != null && !shot.IsDisposed)
                {
                    shot.Dispose();
                }
            }
        }