This sample will show you how to use the Camera Capture ActiveX from C# dot net. This ActiveX component is an OCX and it allows you to use any camera connected to your PC. You can display the camera, capture frame as an image, capture frames as a video, and more.
Requirements:
- Visual C# 2008/2010
- Camera Capture ActiveX | Download
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using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Diagnostics; using Microsoft.VisualBasic; using Microsoft.VisualBasic.Compatibility; namespace VIDEO_CAMERA_ACTIVEX_SAMPLE { /// <summary> /// Summary description for frmMain. /// </summary> public class frmMain : System.Windows.Forms.Form { /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public frmMain() { // // Required for Windows Form Designer support // InitializeComponent(); // // TODO: Add any constructor code after InitializeComponent call // if (_InstancePtr == null) _InstancePtr = this; } internal System.Windows.Forms.Button cmdFrame; internal System.Windows.Forms.Button cmdCapture; internal System.Windows.Forms.Button cmdAudioFormat; internal System.Windows.Forms.Button cmdSetCaptureFile; internal System.Windows.Forms.Button cmdSavePalette; internal System.Windows.Forms.Button cmdLoadPalette; internal System.Windows.Forms.Button cmdCompression; internal System.Windows.Forms.Button cmdDisplay; internal System.Windows.Forms.Button cmdFormat; internal System.Windows.Forms.Button cmdSource; internal System.Windows.Forms.Button cmdConnect; internal System.Windows.Forms.ComboBox cboDrivers; private AxCamera_Capture_ActiveX.AxcCam axcCam1; /// <summary> /// Default instance for Form /// </summary> public static frmMain InstancePtr { get { return _InstancePtr == null ? _InstancePtr = new frmMain() : _InstancePtr; } } protected static frmMain _InstancePtr = null; /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmMain)); this.cmdFrame = new System.Windows.Forms.Button(); this.cmdCapture = new System.Windows.Forms.Button(); this.cmdAudioFormat = new System.Windows.Forms.Button(); this.cmdSetCaptureFile = new System.Windows.Forms.Button(); this.cmdSavePalette = new System.Windows.Forms.Button(); this.cmdLoadPalette = new System.Windows.Forms.Button(); this.cmdCompression = new System.Windows.Forms.Button(); this.cmdDisplay = new System.Windows.Forms.Button(); this.cmdFormat = new System.Windows.Forms.Button(); this.cmdSource = new System.Windows.Forms.Button(); this.cmdConnect = new System.Windows.Forms.Button(); this.cboDrivers = new System.Windows.Forms.ComboBox(); this.axcCam1 = new AxCamera_Capture_ActiveX.AxcCam(); ((System.ComponentModel.ISupportInitialize)(this.axcCam1)).BeginInit(); this.SuspendLayout(); // // cmdFrame // this.cmdFrame.Location = new System.Drawing.Point(328, 136); this.cmdFrame.Name = "cmdFrame"; this.cmdFrame.Size = new System.Drawing.Size(80, 24); this.cmdFrame.TabIndex = 24; this.cmdFrame.Text = "Frame"; this.cmdFrame.Click += new System.EventHandler(this.cmdFrame_Click); // // cmdCapture // this.cmdCapture.Location = new System.Drawing.Point(248, 136); this.cmdCapture.Name = "cmdCapture"; this.cmdCapture.Size = new System.Drawing.Size(80, 24); this.cmdCapture.TabIndex = 23; this.cmdCapture.Text = "Capture"; this.cmdCapture.Click += new System.EventHandler(this.cmdCapture_Click); // // cmdAudioFormat // this.cmdAudioFormat.Location = new System.Drawing.Point(144, 136); this.cmdAudioFormat.Name = "cmdAudioFormat"; this.cmdAudioFormat.Size = new System.Drawing.Size(96, 24); this.cmdAudioFormat.TabIndex = 22; this.cmdAudioFormat.Text = "Audio Format"; this.cmdAudioFormat.Click += new System.EventHandler(this.cmdAudioFormat_Click); // // cmdSetCaptureFile // this.cmdSetCaptureFile.Location = new System.Drawing.Point(40, 136); this.cmdSetCaptureFile.Name = "cmdSetCaptureFile"; this.cmdSetCaptureFile.Size = new System.Drawing.Size(96, 24); this.cmdSetCaptureFile.TabIndex = 21; this.cmdSetCaptureFile.Text = "Set Capture File"; this.cmdSetCaptureFile.Click += new System.EventHandler(this.cmdSetCaptureFile_Click); // // cmdSavePalette // this.cmdSavePalette.Location = new System.Drawing.Point(328, 104); this.cmdSavePalette.Name = "cmdSavePalette"; this.cmdSavePalette.Size = new System.Drawing.Size(80, 24); this.cmdSavePalette.TabIndex = 20; this.cmdSavePalette.Text = "Save Palette"; this.cmdSavePalette.Click += new System.EventHandler(this.cmdSavePalette_Click); // // cmdLoadPalette // this.cmdLoadPalette.Location = new System.Drawing.Point(328, 72); this.cmdLoadPalette.Name = "cmdLoadPalette"; this.cmdLoadPalette.Size = new System.Drawing.Size(80, 24); this.cmdLoadPalette.TabIndex = 19; this.cmdLoadPalette.Text = "Load Palette"; this.cmdLoadPalette.Click += new System.EventHandler(this.cmdLoadPalette_Click); // // cmdCompression // this.cmdCompression.Location = new System.Drawing.Point(128, 104); this.cmdCompression.Name = "cmdCompression"; this.cmdCompression.Size = new System.Drawing.Size(80, 24); this.cmdCompression.TabIndex = 18; this.cmdCompression.Text = "Compression"; this.cmdCompression.Click += new System.EventHandler(this.cmdCompression_Click); // // cmdDisplay // this.cmdDisplay.Location = new System.Drawing.Point(40, 104); this.cmdDisplay.Name = "cmdDisplay"; this.cmdDisplay.Size = new System.Drawing.Size(80, 24); this.cmdDisplay.TabIndex = 17; this.cmdDisplay.Text = "Display"; this.cmdDisplay.Click += new System.EventHandler(this.cmdDisplay_Click); // // cmdFormat // this.cmdFormat.Location = new System.Drawing.Point(128, 72); this.cmdFormat.Name = "cmdFormat"; this.cmdFormat.Size = new System.Drawing.Size(80, 24); this.cmdFormat.TabIndex = 16; this.cmdFormat.Text = "Format"; this.cmdFormat.Click += new System.EventHandler(this.cmdFormat_Click); // // cmdSource // this.cmdSource.Location = new System.Drawing.Point(40, 72); this.cmdSource.Name = "cmdSource"; this.cmdSource.Size = new System.Drawing.Size(80, 24); this.cmdSource.TabIndex = 15; this.cmdSource.Text = "Source"; this.cmdSource.Click += new System.EventHandler(this.cmdSource_Click); // // cmdConnect // this.cmdConnect.Location = new System.Drawing.Point(40, 40); this.cmdConnect.Name = "cmdConnect"; this.cmdConnect.Size = new System.Drawing.Size(368, 24); this.cmdConnect.TabIndex = 14; this.cmdConnect.Text = "Connect"; this.cmdConnect.Click += new System.EventHandler(this.cmdConnect_Click); // // cboDrivers // this.cboDrivers.Location = new System.Drawing.Point(40, 16); this.cboDrivers.Name = "cboDrivers"; this.cboDrivers.Size = new System.Drawing.Size(368, 21); this.cboDrivers.TabIndex = 13; this.cboDrivers.Text = "ComboBox1"; // // axcCam1 // this.axcCam1.Enabled = true; this.axcCam1.Location = new System.Drawing.Point(40, 168); this.axcCam1.Name = "axcCam1"; this.axcCam1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axcCam1.OcxState"))); this.axcCam1.Size = new System.Drawing.Size(368, 256); this.axcCam1.TabIndex = 25; this.axcCam1.Error += new AxCamera_Capture_ActiveX.__cCam_ErrorEventHandler(this.axcCam1_Error); // // frmMain // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.BackColor = System.Drawing.SystemColors.Control; this.ClientSize = new System.Drawing.Size(450, 451); this.Controls.Add(this.axcCam1); this.Controls.Add(this.cmdFrame); this.Controls.Add(this.cmdCapture); this.Controls.Add(this.cmdAudioFormat); this.Controls.Add(this.cmdSetCaptureFile); this.Controls.Add(this.cmdSavePalette); this.Controls.Add(this.cmdLoadPalette); this.Controls.Add(this.cmdCompression); this.Controls.Add(this.cmdDisplay); this.Controls.Add(this.cmdFormat); this.Controls.Add(this.cmdSource); this.Controls.Add(this.cmdConnect); this.Controls.Add(this.cboDrivers); this.ForeColor = System.Drawing.SystemColors.ControlText; this.Name = "frmMain"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "Camera Capture ActiveX Sample 1.0"; this.Load += new System.EventHandler(this.frmMain_Load); ((System.ComponentModel.ISupportInitialize)(this.axcCam1)).EndInit(); this.ResumeLayout(false); } #endregion /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new frmMain()); } private void GetDrivers() { //Load the drivers VBA.Collection cDrivers; // = new VBA.Collection(); int cntr = 0; object oDriverCnt = 0; cDrivers = axcCam1.GetDrivers(); if (cDrivers.Count() > 0) { for (cntr = 1; cntr <= cDrivers.Count(); cntr++) { oDriverCnt = (object) cntr; cboDrivers.Items.Add(cDrivers.Item(ref oDriverCnt).ToString()); } //Select the first driver cboDrivers.SelectedIndex = 0; } } private void GetDriversX() { //Load the drivers without VB collection int cntr = 0; long lDriversCount = 0; object oDriverCnt = 0; lDriversCount = axcCam1.GetDriversX(); if (lDriversCount > 0) { for (cntr = 1; cntr <= lDriversCount; cntr++) { oDriverCnt = (object) cntr; cboDrivers.Items.Add(axcCam1.GetDriverXVal(cntr).ToString()); } //Select the first driver cboDrivers.SelectedIndex = 0; } } private void frmMain_Load(object sender, System.EventArgs e) { //Init the control: //Must be call before using any //functionality of the control. //sKey = Your registration key. //On trial mode use the "Trial Mode." axcCam1.Init("Trial Mode."); GetDrivers(); //Or get the drivers without VB collection //GetDriversX() } private void cmdConnect_Click(object sender, System.EventArgs e) { //Connect to the driver axcCam1.ConnectDriver(cboDrivers.SelectedIndex); } private void cmdSource_Click(object sender, System.EventArgs e) { //Set the source options axcCam1.SetSource(); } private void cmdFormat_Click(object sender, System.EventArgs e) { //Set format options axcCam1.SetFormat(); } private void cmdLoadPalette_Click(object sender, System.EventArgs e) { //Load Palette axcCam1.PaletteLoad(); } private void cmdDisplay_Click(object sender, System.EventArgs e) { //Set display options axcCam1.SetDisplay(); } private void cmdCompression_Click(object sender, System.EventArgs e) { //Set video compression axcCam1.SetCompression(); } private void cmdSavePalette_Click(object sender, System.EventArgs e) { //Save Palette axcCam1.PaletteSave(); } private void cmdSetCaptureFile_Click(object sender, System.EventArgs e) { //Set the capture video file axcCam1.SetCapFile("C:\\camera_capture.avi"); } private void cmdAudioFormat_Click(object sender, System.EventArgs e) { //Set audio compression axcCam1.SetAudioFormatDlg(); } private void cmdCapture_Click(object sender, System.EventArgs e) { int lFps = 15; bool bLimitSec = false; int lLimitSec = 30; bool bCaptureAudio = true; bool bUserHitOKToCapture = true; bool bAbortLeftMouse = true; bool bAbortRightMouse = true; bool bAVStreamMaster = true; int lIndexSize = -1; //Set the movie file axcCam1.SetCapFile("C:\\camera_capture.avi"); //Start capture axcCam1.Capture(ref lFps, ref bLimitSec, ref lLimitSec, ref bCaptureAudio, ref bUserHitOKToCapture, ref bAbortLeftMouse, ref bAbortRightMouse, ref bAVStreamMaster, ref lIndexSize); } private void cmdFrame_Click(object sender, System.EventArgs e) { //Capture frame to bmp axcCam1.SaveSingleFrame("C:\\CamCapture.bmp"); } private void axcCam1_Error(object sender, AxCamera_Capture_ActiveX.__cCam_ErrorEvent e) { //Display error message MessageBox.Show("Error: " + e.sErrMessage + "(" + e.lErrNumber + ")"); } //========================================================= } } |
Links:
- Visual C# 2008/2010
- Camera Capture ActiveX | Download
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