cecamera.cs

wince 的摄像头操作程序

            // textTitle
            // 
            this.textTitle.Location = new System.Drawing.Point(5, 131);
            this.textTitle.MaxLength = 64;
            this.textTitle.Name = "textTitle";
            this.textTitle.Size = new System.Drawing.Size(141, 21);
            this.textTitle.TabIndex = 5;
            // 
            // checkResolution
            // 
            this.checkResolution.Location = new System.Drawing.Point(5, 158);
            this.checkResolution.Name = "checkResolution";
            this.checkResolution.Size = new System.Drawing.Size(154, 16);
            this.checkResolution.TabIndex = 6;
            this.checkResolution.Text = "指定尺寸(宽 x 高):";
            this.checkResolution.CheckStateChanged += new System.EventHandler(this.checkResolution_CheckStateChanged);
            // 
            // textResolutionWidth
            // 
            this.textResolutionWidth.Location = new System.Drawing.Point(5, 180);
            this.textResolutionWidth.MaxLength = 10;
            this.textResolutionWidth.Name = "textResolutionWidth";
            this.textResolutionWidth.Size = new System.Drawing.Size(52, 21);
            this.textResolutionWidth.TabIndex = 7;
            // 
            // labelX
            // 
            this.labelX.Location = new System.Drawing.Point(63, 180);
            this.labelX.Name = "labelX";
            this.labelX.Size = new System.Drawing.Size(24, 16);
            this.labelX.Text = "x";
            this.labelX.TextAlign = System.Drawing.ContentAlignment.TopCenter;
            // 
            // textResolutionHeight
            // 
            this.textResolutionHeight.Location = new System.Drawing.Point(93, 180);
            this.textResolutionHeight.MaxLength = 10;
            this.textResolutionHeight.Name = "textResolutionHeight";
            this.textResolutionHeight.Size = new System.Drawing.Size(53, 21);
            this.textResolutionHeight.TabIndex = 9;
            // 
            // checkVideoTimeLimit
            // 
            this.checkVideoTimeLimit.Location = new System.Drawing.Point(5, 207);
            this.checkVideoTimeLimit.Name = "checkVideoTimeLimit";
            this.checkVideoTimeLimit.Size = new System.Drawing.Size(115, 19);
            this.checkVideoTimeLimit.TabIndex = 10;
            this.checkVideoTimeLimit.Text = "视频时间限制:";
            this.checkVideoTimeLimit.CheckStateChanged += new System.EventHandler(this.checkVideoTimeLimit_CheckStateChanged);
            // 
            // textVideoTimeLimit
            // 
            this.textVideoTimeLimit.Location = new System.Drawing.Point(5, 232);
            this.textVideoTimeLimit.MaxLength = 10;
            this.textVideoTimeLimit.Name = "textVideoTimeLimit";
            this.textVideoTimeLimit.Size = new System.Drawing.Size(154, 21);
            this.textVideoTimeLimit.TabIndex = 11;
            // 
            // MainForm
            // 
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Inherit;
            this.AutoScroll = true;
            this.ClientSize = new System.Drawing.Size(240, 268);
            this.Controls.Add(this.checkInitialDirectory);
            this.Controls.Add(this.textInitialDirectory);
            this.Controls.Add(this.checkDefaultFileName);
            this.Controls.Add(this.textDefaultFileName);
            this.Controls.Add(this.checkTitle);
            this.Controls.Add(this.textTitle);
            this.Controls.Add(this.checkResolution);
            this.Controls.Add(this.textResolutionWidth);
            this.Controls.Add(this.labelX);
            this.Controls.Add(this.textResolutionHeight);
            this.Controls.Add(this.checkVideoTimeLimit);
            this.Controls.Add(this.textVideoTimeLimit);
            this.Menu = this.mainMenu;
            this.Name = "MainForm";
            this.Text = "CECamera";
            this.Closed += new System.EventHandler(this.MainForm_Closed);
            this.ResumeLayout(false);

        }
        #endregion

        /// <summary>
        /// 程序入口
        /// </summary>
        static void Main()
        {
            Application.Run(new MainForm());
        }

        /// <summary>
        /// 程序退出
        /// </summary>
        private void MainForm_Closed(object sender, System.EventArgs e)
        {
            Application.Exit();
        }
        
        private void checkInitialDirectory_CheckStateChanged(object sender, System.EventArgs e)
        {
            this.textInitialDirectory.Enabled = this.checkInitialDirectory.Checked;
        }
       
        private void checkDefaultFileName_CheckStateChanged(object sender, System.EventArgs e)
        {
            this.textDefaultFileName.Enabled = this.checkDefaultFileName.Checked;
            validateFileNameInput();
        }
       
        private void checkTitle_CheckStateChanged(object sender, System.EventArgs e)
        {
            this.textTitle.Enabled = this.checkTitle.Checked;
        }
        
        private void checkResolution_CheckStateChanged(object sender, System.EventArgs e)
        {
            this.textResolutionWidth.Enabled = this.checkResolution.Checked;
            this.textResolutionHeight.Enabled = this.checkResolution.Checked;
        }
        
        private void checkVideoTimeLimit_CheckStateChanged(object sender, EventArgs e)
        {
            this.textVideoTimeLimit.Enabled = this.checkVideoTimeLimit.Checked;
        }

        /// <summary>
        /// 调用照相机
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuStart_Click(object sender, System.EventArgs e)
        {
            CameraCaptureDialog cameraCapture = new CameraCaptureDialog();
            cameraCapture.Owner = this;

            // Gets or sets the name of the directory for storing the captured image or video file. 
            //设置路径以便保存捕获到的图像或者视频
            if (this.checkInitialDirectory.Checked)
            {
                cameraCapture.InitialDirectory = this.textInitialDirectory.Text;
            }

            if (this.checkDefaultFileName.Checked)
            {
                if (this.menuModeStill.Checked)
                {
                    if (cameraCapture.DefaultFileName != null)
                    {
                        // It is necessary to end picture files with ".jpg".
                        // Otherwise the argument is invalid.
                        cameraCapture.DefaultFileName = cameraCapture.DefaultFileName + cecameraDefaultPictureExtension;
                    }
                }
                else
                {
                    // If it is a video, pass null. This will return a filename with a 
                    // correct extension. Later on we rename the file and keep the extension.
                    cameraCapture.DefaultFileName =  null;
                }
            }

            if (this.checkTitle.Checked)
            {
                cameraCapture.Title = this.textTitle.Text;
            }
            if (this.checkResolution.Checked)
            {
                int resolutionWidth = 0;
                int resolutionHeight = 0;

                if (!ConvertStringToInt(this.textResolutionWidth.Text, ref resolutionWidth))
                {
                    MessageBox.Show("请输入有效宽度.", this.Text,
                        MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
                    textResolutionWidth.Focus();
                    return;
                }
                if (!ConvertStringToInt(this.textResolutionHeight.Text, ref resolutionHeight))
                {
                    MessageBox.Show("请输入有效高度.", this.Text,
                        MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
                    textResolutionHeight.Focus();
                    return;
                }

                cameraCapture.Resolution = new Size(resolutionWidth, resolutionHeight);
            }
            if (this.checkVideoTimeLimit.Checked)
            {
                int videoTimeLimit = 0;

                if (!ConvertStringToInt(this.textVideoTimeLimit.Text, ref videoTimeLimit))
                {
                    MessageBox.Show("请输入有效的视频时间限制.", this.Text,
                        MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
                    textVideoTimeLimit.Focus();
                    return;
                }

                //视频的时间最大限制
                cameraCapture.VideoTimeLimit = new TimeSpan(0, 0, videoTimeLimit);
            }

            // 指定捕获模式
            if (this.menuModeStill.Checked)
            {
                cameraCapture.Mode = CameraCaptureMode.Still;//只捕获一张相片
            }
            else if (this.menuModeVideoOnly.Checked)
            {
                cameraCapture.Mode = CameraCaptureMode.VideoOnly;//捕获没有声音的视频
            }
            else if (this.menuModeVideoWithAudio.Checked)
            {
                cameraCapture.Mode = CameraCaptureMode.VideoWithAudio;//捕获声音和视频
            }

            // 制定画面质量
            if (this.menuStillQualityDefault.Checked)
            {
                cameraCapture.StillQuality = CameraCaptureStillQuality.Default;//默认质量
            }
            else if (this.menuStillQualityLow.Checked)
            {
                cameraCapture.StillQuality = CameraCaptureStillQuality.Low;//低质量
            }
            else if (this.menuStillQualityNormal.Checked)
            {
                cameraCapture.StillQuality = CameraCaptureStillQuality.Normal;//正常质量
            }
            else if (this.menuStillQualityHigh.Checked)
            {
                cameraCapture.StillQuality = CameraCaptureStillQuality.High;//高质量
            }

            // 制定视频类型
            if (this.menuVideoTypesAll.Checked)
            {
                cameraCapture.VideoTypes = CameraCaptureVideoTypes.All;//所有
            }
            else if (this.menuVideoTypesStandard.Checked)
            {
                cameraCapture.VideoTypes = CameraCaptureVideoTypes.Standard;//标准
            }
            else if (this.menuVideoTypesMessaging.Checked)
            {
                cameraCapture.VideoTypes = CameraCaptureVideoTypes.Messaging;//较差
            }

            try
            {
                // 相机捕获对话框
                if (DialogResult.OK == cameraCapture.ShowDialog())
                {
                    string fileName = cameraCapture.FileName;

                    //如果是一段视频，将使用用户指定的文件名和扩展名进行命名
                    if (cameraCapture.Mode != CameraCaptureMode.Still)
                    {
                        string extension = fileName.Substring(fileName.LastIndexOf("."));
                        string directory = "";

                        if (fileName.LastIndexOf("\\") != -1)
                        {
                            directory = fileName.Substring(0, fileName.LastIndexOf("\\") + 1);
                        }

                        fileName = directory + this.textDefaultFileName.Text + extension;

                        System.IO.File.Move(cameraCapture.FileName, fileName);
                    }
                   
                    MessageBox.Show("相片或者视频已经成功捕获并保存在:\n\n" + fileName,
                        this.Text, MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);
                }
            }
            catch (ArgumentException ex)
            {
                // 非法变量异常
                MessageBox.Show(ex.Message, this.Text, MessageBoxButtons.OK,
                    MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
            }
            catch (OutOfMemoryException ex)
            {