using System;
using System.IO;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Collections;
using System.Data;
namespace SoundVideo
{
public class Camera
{
public delegate void RecievedFrameEventHandler(byte[] data);
public event RecievedFrameEventHandler RecievedFrame;
public IntPtr lwndC;
private IntPtr mControlPtr;
private int mWidth;
private int mHeight;
private showVideo.FrameEventHandler mFrameEventHandler;
public Camera(IntPtr handle, int width, int height)
{
mControlPtr = handle;
mWidth = width;
mHeight = height;
}
public void CloseCamera()
{
this.capDriverDisconnect(this.lwndC);
}
public void StartCamera()
{
try
{
byte[] lpszName = new byte[100];
byte[] lpszVer = new byte[100];
showVideo.capGetDriverDescriptionA(0, lpszName, 100, lpszVer, 100);
this.lwndC = showVideo.capCreateCaptureWindowA(lpszName, showVideo.WS_VISIBLE + showVideo.WS_CHILD, 0, 0, mWidth, mHeight, mControlPtr, 0);
if (this.capDriverConnect(this.lwndC, 0))
{
this.capPreviewRate(this.lwndC, 66);
this.capPreview(this.lwndC, true);
showVideo.BITMAPINFO bitmapinfo = new showVideo.BITMAPINFO();
bitmapinfo.bmiHeader.biSize = showVideo.SizeOf(bitmapinfo.bmiHeader);
bitmapinfo.bmiHeader.biWidth = 352;
bitmapinfo.bmiHeader.biHeight = 288;
bitmapinfo.bmiHeader.biPlanes = 1;
bitmapinfo.bmiHeader.biBitCount = 24;
this.capSetVideoFormat(this.lwndC, ref bitmapinfo, showVideo.SizeOf(bitmapinfo));
this.mFrameEventHandler = new showVideo.FrameEventHandler(FrameCallBack);
this.capSetCallbackOnFrame(this.lwndC, this.mFrameEventHandler);
showVideo.SetWindowPos(this.lwndC, 0, 0, 0, mWidth, mHeight, 6);
}
}
catch
{
throw;
}
}
public void bitMapToJPG(string bmpFileName, string jpgFileName)
{
System.Drawing.Image img;
img = ReturnPhoto(bmpFileName);
img.Save(jpgFileName, ImageFormat.Jpeg);
}
private Image ReturnPhoto(string bmpFileName)
{
try
{
System.IO.FileStream stream;
stream = File.OpenRead(bmpFileName);
Bitmap bmp = new Bitmap(stream);
System.Drawing.Image image = bmp;//得到原图
//创建指定大小的图
System.Drawing.Image newImage = image.GetThumbnailImage(bmp.Width, bmp.Height, null, new IntPtr());
Graphics g = Graphics.FromImage(newImage);
g.DrawImage(newImage, 0, 0, newImage.Width, newImage.Height); //将原图画到指定的图上
g.Dispose();
stream.Close();
return newImage;
}
catch
{
throw;
}
}
public void capImage(IntPtr lwnd, string path)//抓图
{
showVideo.BITMAPINFO bitmapinfo = new showVideo.BITMAPINFO();
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
showVideo.SendMessage(lwnd, showVideo.WM_CAP_SAVEDIB, 0, hBmp.ToInt32());
}
public void capScope(IntPtr lwnd, string path)// 录像,保存avi文件的路径
{
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
showVideo.SendMessage(lwnd, showVideo.WM_CAP_FILE_SET_CAPTURE_FILEA, 0, hBmp.ToInt32());
showVideo.SendMessage(lwnd, showVideo.WM_CAP_SEQUENCE, 0, 0);
}
public void stopCapScope(IntPtr lwnd)// 停止录像
{
showVideo.SendMessage(lwnd, showVideo.WM_CAP_STOP, 0, 0);
}
private bool capDriverConnect(IntPtr lwnd, short i)
{
return showVideo.SendMessage(lwnd, showVideo.WM_CAP_DRIVER_CONNECT, i, 0);
}
private bool capDriverDisconnect(IntPtr lwnd)
{
return showVideo.SendMessage(lwnd, showVideo.WM_CAP_DRIVER_DISCONNECT, 0, 0);
}
private bool capPreview(IntPtr lwnd, bool f)
{
return showVideo.SendMessage(lwnd, showVideo.WM_CAP_SET_PREVIEW, f, 0);
}
private bool capPreviewRate(IntPtr lwnd, short wMS)
{
return showVideo.SendMessage(lwnd, showVideo.WM_CAP_SET_PREVIEWRATE, wMS, 0);
}
private bool capSetCallbackOnFrame(IntPtr lwnd, showVideo.FrameEventHandler lpProc)
{
return showVideo.SendMessage(lwnd, showVideo.WM_CAP_SET_CALLBACK_FRAME, 0, lpProc);
}
private bool capSetVideoFormat(IntPtr hCapWnd, ref showVideo.BITMAPINFO BmpFormat, int CapFormatSize)
{
return showVideo.SendMessage(hCapWnd, showVideo.WM_CAP_SET_VIDEOFORMAT, CapFormatSize, ref BmpFormat);
}
private void FrameCallBack(IntPtr lwnd, IntPtr lpVHdr)
{
try
{
showVideo.VIDEOHDR videoHeader = new showVideo.VIDEOHDR();
byte[] VideoData;
videoHeader = (showVideo.VIDEOHDR)showVideo.GetStructure(lpVHdr, videoHeader);
VideoData = new byte[videoHeader.dwBytesUsed];
showVideo.Copy(videoHeader.lpData, VideoData);
if (this.RecievedFrame != null) this.RecievedFrame(VideoData);
}
catch
{
throw;
}
}
}
}
ShowVideo.cs类文件
using System;
using System.IO;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Collections;
using System.Data;
namespace SoundVideo
{
public class showVideo
{
[DllImport("avicap32.dll")]
public static extern IntPtr capCreateCaptureWindowA(byte[] lpszWindowName, int dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, int nID);
[DllImport("avicap32.dll")]
public static extern bool capGetDriverDescriptionA(short wDriver, byte[] lpszName, int cbName, byte[] lpszVer, int cbVer);
[DllImport("User32.dll")]
public static extern bool SendMessage(IntPtr hWnd, int wMsg, bool wParam, int lParam);
[DllImport("User32.dll")]
public static extern bool SendMessage(IntPtr hWnd, int wMsg, short wParam, int lParam);
[DllImport("User32.dll")]
public static extern bool SendMessage(IntPtr hWnd, int wMsg, short wParam, FrameEventHandler lParam);
[DllImport("User32.dll")]
public static extern bool SendMessage(IntPtr hWnd, int wMsg, int wParam, ref BITMAPINFO lParam);
[DllImport("User32.dll")]
public static extern int SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int x, int y, int cx, int cy, int wFlags);
[DllImport("avicap32.dll")]
public static extern int capGetVideoFormat(IntPtr hWnd, IntPtr psVideoFormat, int wSize);
public const int WM_USER = 0x400;
public const int WS_CHILD = 0x40000000;
public const int WS_VISIBLE = 0x10000000;
public const int WM_CAP_START = WM_USER;
public const int WM_CAP_STOP = WM_CAP_START + 68;
public const int WM_CAP_DRIVER_CONNECT = WM_CAP_START + 10;
public const int WM_CAP_DRIVER_DISCONNECT = WM_CAP_START + 11;
public const int WM_CAP_SAVEDIB = WM_CAP_START + 25;
public const int WM_CAP_GRAB_FRAME = WM_CAP_START + 60;
public const int WM_CAP_SEQUENCE = WM_CAP_START + 62;
public const int WM_CAP_FILE_SET_CAPTURE_FILEA = WM_CAP_START + 20;
public const int WM_CAP_SEQUENCE_NOFILE = WM_CAP_START + 63;
public const int WM_CAP_SET_OVERLAY = WM_CAP_START + 51;
public const int WM_CAP_SET_PREVIEW = WM_CAP_START + 50;
public const int WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START + 6;
public const int WM_CAP_SET_CALLBACK_ERROR = WM_CAP_START + 2;
public const int WM_CAP_SET_CALLBACK_STATUSA = WM_CAP_START + 3;
public const int WM_CAP_SET_CALLBACK_FRAME = WM_CAP_START + 5;
public const int WM_CAP_SET_SCALE = WM_CAP_START + 53;
public const int WM_CAP_SET_PREVIEWRATE = WM_CAP_START + 52;
public const int WM_CAP_SET_VIDEOFORMAT = WM_USER + 45;
[StructLayout(LayoutKind.Sequential)]
public struct VIDEOHDR
{
[MarshalAs(UnmanagedType.I4)]
public int lpData;
[MarshalAs(UnmanagedType.I4)]
public int dwBufferLength;
[MarshalAs(UnmanagedType.I4)]
public int dwBytesUsed;
[MarshalAs(UnmanagedType.I4)]
public int dwTimeCaptured;
[MarshalAs(UnmanagedType.I4)]
public int dwUser;
[MarshalAs(UnmanagedType.I4)]
public int dwFlags;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public int[] dwReserved;
}
[StructLayout(LayoutKind.Sequential)]
public struct BITMAPINFOHEADER
{
[MarshalAs(UnmanagedType.I4)]
public Int32 biSize;
[MarshalAs(UnmanagedType.I4)]
public Int32 biWidth;
[MarshalAs(UnmanagedType.I4)]
public Int32 biHeight;
[MarshalAs(UnmanagedType.I2)]
public short biPlanes;
[MarshalAs(UnmanagedType.I2)]
public short biBitCount;
[MarshalAs(UnmanagedType.I4)]
public Int32 biCompression;
[MarshalAs(UnmanagedType.I4)]
public Int32 biSizeImage;
[MarshalAs(UnmanagedType.I4)]
public Int32 biXPelsPerMeter;
[MarshalAs(UnmanagedType.I4)]
public Int32 biYPelsPerMeter;
[MarshalAs(UnmanagedType.I4)]
public Int32 biClrUsed;
[MarshalAs(UnmanagedType.I4)]
public Int32 biClrImportant;
}
[StructLayout(LayoutKind.Sequential)]
public struct BITMAPINFO
{
[MarshalAs(UnmanagedType.Struct, SizeConst = 40)]
public BITMAPINFOHEADER bmiHeader;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1024)]
public Int32[] bmiColors;
}
public delegate void FrameEventHandler(IntPtr lwnd, IntPtr lpVHdr);
public static object GetStructure(IntPtr ptr, ValueType structure)
{
return Marshal.PtrToStructure(ptr, structure.GetType());
}
public static object GetStructure(int ptr, ValueType structure)
{
return GetStructure(new IntPtr(ptr), structure);
}
public static void Copy(IntPtr ptr, byte[] data)
{
Marshal.Copy(ptr, data, 0, data.Length);
}
public static void Copy(int ptr, byte[] data)
{
Copy(new IntPtr(ptr), data);
}
public static int SizeOf(object structure)
{
return Marshal.SizeOf(structure);
}
}
}
Form1.cs类文件
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace SoundVideo
{
public partial class Form1 : Form
{
Camera wc;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
this.btnPlay.Enabled = false;
this.btnClose.Enabled = true;
//panelPreview.Size = new Size(330,330);
wc = new Camera(panelPreview.Handle, panelPreview.Width, panelPreview.Height);
wc.StartCamera();
}
catch
{
MessageBox.Show("打开摄像头有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnPlay_Click(object sender, EventArgs e)
{
try
{
this.btnPlay.Enabled = false;
this.btnClose.Enabled = true;
wc = new Camera(panelPreview.Handle, panelPreview.Width, panelPreview.Height);
wc.StartCamera();
}
catch
{
MessageBox.Show("打开摄像头有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnScroll_Click(object sender, EventArgs e)
{
try
{
wc.capImage(wc.lwndC, "d://test.bmp");
}
catch
{
MessageBox.Show("抓图有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnStopCap_Click(object sender, EventArgs e)
{
try
{
wc.stopCapScope(wc.lwndC);
}
catch
{
MessageBox.Show("停止摄像有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnStartCap_Click(object sender, EventArgs e)
{
try
{
wc.capScope(wc.lwndC, "d://test.avi");
}
catch
{
MessageBox.Show("开始摄像有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnClose_Click(object sender, EventArgs e)
{
try
{
this.btnPlay.Enabled = true;
this.btnClose.Enabled = false;
wc.CloseCamera();
}
catch
{
MessageBox.Show("关闭摄像头有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace SoundVideo
{
public partial class Form1 : Form
{
Camera wc;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
this.btnPlay.Enabled = false;
this.btnClose.Enabled = true;
//panelPreview.Size = new Size(330,330);
wc = new Camera(panelPreview.Handle, panelPreview.Width, panelPreview.Height);
wc.StartCamera();
}
catch
{
MessageBox.Show("打开摄像头有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnPlay_Click(object sender, EventArgs e)
{
try
{
this.btnPlay.Enabled = false;
this.btnClose.Enabled = true;
wc = new Camera(panelPreview.Handle, panelPreview.Width, panelPreview.Height);
wc.StartCamera();
}
catch
{
MessageBox.Show("打开摄像头有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnScroll_Click(object sender, EventArgs e)
{
try
{
wc.capImage(wc.lwndC, "d://test.bmp");
}
catch
{
MessageBox.Show("抓图有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnStopCap_Click(object sender, EventArgs e)
{
try
{
wc.stopCapScope(wc.lwndC);
}
catch
{
MessageBox.Show("停止摄像有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnStartCap_Click(object sender, EventArgs e)
{
try
{
wc.capScope(wc.lwndC, "d://test.avi");
}
catch
{
MessageBox.Show("开始摄像有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnClose_Click(object sender, EventArgs e)
{
try
{
this.btnPlay.Enabled = true;
this.btnClose.Enabled = false;
wc.CloseCamera();
}
catch
{
MessageBox.Show("关闭摄像头有误,请检查", "系统消息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
Form1.Designer.cs类文件
namespace SoundVideo
{
partial class Form1
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.btnStartCap = new System.Windows.Forms.Button();
this.btnStopCap = new System.Windows.Forms.Button();
this.btnScroll = new System.Windows.Forms.Button();
this.btnPlay = new System.Windows.Forms.Button();
this.btnClose = new System.Windows.Forms.Button();
this.panelPreview = new System.Windows.Forms.Panel();
this.panel2 = new System.Windows.Forms.Panel();
this.panel1.SuspendLayout();
this.panel2.SuspendLayout();
this.SuspendLayout();
//
// panel1
//
this.panel1.Controls.Add(this.panel2);
this.panel1.Controls.Add(this.panelPreview);
this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.panel1.Location = new System.Drawing.Point(0, 0);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(518, 487);
this.panel1.TabIndex = 0;
//
// btnStartCap
//
this.btnStartCap.Location = new System.Drawing.Point(51, 3);
this.btnStartCap.Name = "btnStartCap";
this.btnStartCap.Size = new System.Drawing.Size(75, 23);
this.btnStartCap.TabIndex = 0;
this.btnStartCap.Text = "开始录像";
this.btnStartCap.UseVisualStyleBackColor = true;
this.btnStartCap.Click += new System.EventHandler(this.btnStartCap_Click);
//
// btnStopCap
//
this.btnStopCap.Location = new System.Drawing.Point(132, 3);
this.btnStopCap.Name = "btnStopCap";
this.btnStopCap.Size = new System.Drawing.Size(75, 23);
this.btnStopCap.TabIndex = 1;
this.btnStopCap.Text = "停止录像";
this.btnStopCap.UseVisualStyleBackColor = true;
this.btnStopCap.Click += new System.EventHandler(this.btnStopCap_Click);
//
// btnScroll
//
this.btnScroll.Location = new System.Drawing.Point(213, 3);
this.btnScroll.Name = "btnScroll";
this.btnScroll.Size = new System.Drawing.Size(75, 23);
this.btnScroll.TabIndex = 2;
this.btnScroll.Text = "抓图";
this.btnScroll.UseVisualStyleBackColor = true;
this.btnScroll.Click += new System.EventHandler(this.btnScroll_Click);
//
// btnPlay
//
this.btnPlay.Location = new System.Drawing.Point(294, 3);
this.btnPlay.Name = "btnPlay";
this.btnPlay.Size = new System.Drawing.Size(75, 23);
this.btnPlay.TabIndex = 3;
this.btnPlay.Text = "播放";
this.btnPlay.UseVisualStyleBackColor = true;
this.btnPlay.Click += new System.EventHandler(this.btnPlay_Click);
//
// btnClose
//
this.btnClose.Location = new System.Drawing.Point(375, 3);
this.btnClose.Name = "btnClose";
this.btnClose.Size = new System.Drawing.Size(75, 23);
this.btnClose.TabIndex = 4;
this.btnClose.Text = "关闭";
this.btnClose.UseVisualStyleBackColor = true;
this.btnClose.Click += new System.EventHandler(this.btnClose_Click);
//
// panelPreview
//
this.panelPreview.Dock = System.Windows.Forms.DockStyle.Fill;
this.panelPreview.Location = new System.Drawing.Point(0, 0);
this.panelPreview.Name = "panelPreview";
this.panelPreview.Size = new System.Drawing.Size(518, 487);
this.panelPreview.TabIndex = 5;
//
// panel2
//
this.panel2.Controls.Add(this.btnStartCap);
this.panel2.Controls.Add(this.btnStopCap);
this.panel2.Controls.Add(this.btnClose);
this.panel2.Controls.Add(this.btnScroll);
this.panel2.Controls.Add(this.btnPlay);
this.panel2.Dock = System.Windows.Forms.DockStyle.Bottom;
this.panel2.Location = new System.Drawing.Point(0, 448);
this.panel2.Name = "panel2";
this.panel2.Size = new System.Drawing.Size(518, 39);
this.panel2.TabIndex = 6;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(518, 487);
this.Controls.Add(this.panel1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.panel1.ResumeLayout(false);
this.panel2.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Button btnClose;
private System.Windows.Forms.Button btnPlay;
private System.Windows.Forms.Button btnScroll;
private System.Windows.Forms.Button btnStopCap;
private System.Windows.Forms.Button btnStartCap;
private System.Windows.Forms.Panel panelPreview;
private System.Windows.Forms.Panel panel2;
}
}