一段代码~视频捕捉
using System;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Runtime.InteropServices;
namespace VideoCap
{
/// <summary>
/// API 的摘要说明。
/// </summary>
public class API
{
public const int WS_BORDER = 0x800000;
public const int WS_CAPTION = 0xC00000;
public const int WS_SYSMENU = 0x80000;
public const int WS_CHILD = 0x40000000;
public const int WS_VISIBLE = 0x10000000;
public const int WS_OVERLAPPED = 0x0;
public const int WS_MINIMIZEBOX = 0x20000;
public const int WS_MAXIMIZEBOX = 0x10000;
public const int WS_THICKFRAME = 0x40000;
//public const int WS_OVERLAPPEDWINDOW = (WS_OVERLAPPED Or WS_CAPTION Or WS_SYSMENU Or WS_THICKFRAME Or WS_MINIMIZEBOX Or WS_MAXIMIZEBOX);
public const int SWP_NOMOVE = 0x2;
public const int SWP_NOSIZE = 1;
public const int SWP_NOZORDER = 0x4;
public const int HWND_BOTTOM = 1;
public const int HWND_TOPMOST = -1;
public const int HWND_NOTOPMOST = -2;
public const int SM_CYCAPTION = 4;
public const int SM_CXFRAME = 32;
public const int SM_CYFRAME = 33;
public const int WS_EX_TRANSPARENT = 0x20;
public const int GWL_STYLE = (-16);
public const int WM_USER = 0x400;
public const int WM_CAP_START = WM_USER;
public const int WM_CAP_GET_CAPSTREAMPTR = WM_CAP_START + 1;
public const int WM_CAP_SET_CALLBACK_ERROR = WM_CAP_START + 2;
public const int WM_CAP_SET_CALLBACK_STATUS = WM_CAP_START + 3;
public const int WM_CAP_SET_CALLBACK_YIELD = WM_CAP_START + 4;
public const int WM_CAP_SET_CALLBACK_FRAME = WM_CAP_START + 5;
public const int WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START + 6;
public const int WM_CAP_SET_CALLBACK_WAVESTREAM = WM_CAP_START + 7;
public const int WM_CAP_GET_USER_DATA = WM_CAP_START + 8;
public const int WM_CAP_SET_USER_DATA = WM_CAP_START + 9;
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_DRIVER_GET_NAME = WM_CAP_START + 12;
public const int WM_CAP_DRIVER_GET_VERSION = WM_CAP_START + 13;
public const int WM_CAP_DRIVER_GET_CAPS = WM_CAP_START + 14;
public const int WM_CAP_FILE_SET_CAPTURE_FILE = WM_CAP_START + 20;
public const int WM_CAP_FILE_GET_CAPTURE_FILE = WM_CAP_START + 21;
public const int WM_CAP_FILE_ALLOCATE = WM_CAP_START + 22;
public const int WM_CAP_FILE_SAVEAS = WM_CAP_START + 23;
public const int WM_CAP_FILE_SET_INFOCHUNK = WM_CAP_START + 24;
public const int WM_CAP_FILE_SAVEDIB = WM_CAP_START + 25;
public const int WM_CAP_EDIT_COPY = WM_CAP_START + 30;
public const int WM_CAP_SET_AUDIOFORMAT = WM_CAP_START + 35;
public const int WM_CAP_GET_AUDIOFORMAT = WM_CAP_START + 36;
public const int WM_CAP_DLG_VIDEOFORMAT = WM_CAP_START + 41;
public const int WM_CAP_DLG_VIDEOSOURCE = WM_CAP_START + 42;
public const int WM_CAP_DLG_VIDEODISPLAY = WM_CAP_START + 43;
public const int WM_CAP_GET_VIDEOFORMAT = WM_CAP_START + 44;
public const int WM_CAP_SET_VIDEOFORMAT = WM_CAP_START + 45;
public const int WM_CAP_DLG_VIDEOCOMPRESSION = WM_CAP_START + 46;
public const int WM_CAP_SET_PREVIEW = WM_CAP_START + 50;
public const int WM_CAP_SET_OVERLAY = WM_CAP_START + 51;
public const int WM_CAP_SET_PREVIEWRATE = WM_CAP_START + 52;
public const int WM_CAP_SET_SCALE = WM_CAP_START + 53;
public const int WM_CAP_GET_STATUS = WM_CAP_START + 54;
public const int WM_CAP_SET_SCROLL = WM_CAP_START + 55;
public const int WM_CAP_GRAB_FRAME = WM_CAP_START + 60;
public const int WM_CAP_GRAB_FRAME_NOSTOP = WM_CAP_START + 61;
public const int WM_CAP_SEQUENCE = WM_CAP_START + 62;
public const int WM_CAP_SEQUENCE_NOFILE = WM_CAP_START + 63;
public const int WM_CAP_SET_SEQUENCE_SETUP = WM_CAP_START + 64;
public const int WM_CAP_GET_SEQUENCE_SETUP = WM_CAP_START + 65;
public const int WM_CAP_SET_MCI_DEVICE = WM_CAP_START + 66;
public const int WM_CAP_GET_MCI_DEVICE = WM_CAP_START + 67;
public const int WM_CAP_STOP = WM_CAP_START + 68;
public const int WM_CAP_ABORT = WM_CAP_START + 69;
public const int WM_CAP_SINGLE_FRAME_OPEN = WM_CAP_START + 70;
public const int WM_CAP_SINGLE_FRAME_CLOSE = WM_CAP_START + 71;
public const int WM_CAP_SINGLE_FRAME = WM_CAP_START + 72;
public const int WM_CAP_PAL_OPEN = WM_CAP_START + 80;
public const int WM_CAP_PAL_SAVE = WM_CAP_START + 81;
public const int WM_CAP_PAL_PASTE = WM_CAP_START + 82;
public const int WM_CAP_PAL_AUTOCREATE = WM_CAP_START + 83;
public const int WM_CAP_PAL_MANUALCREATE = WM_CAP_START + 84;
// Following added post VFW 1.1
public const int WM_CAP_SET_CALLBACK_CAPCONTROL = WM_CAP_START + 85;
// Defines end of the message range
public const int WM_CAP_END = WM_CAP_SET_CALLBACK_CAPCONTROL;
public API()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
private const string avicap = "avicap32.dll";
// WaveOut calls
[DllImport(avicap)]
public static extern int capCreateCaptureWindow(string lpszWindowName,int dwStyle,int x,int y,int nWidth,int nHeight,IntPtr hWndParent, int nID);
[DllImport(avicap)]
public static extern bool capGetDriverDescription(int wDriver,StringBuilder lpszName ,int cbName,StringBuilder lpszVer,int cbVer);
[DllImport("User32.dll",EntryPoint="SendMessage")]
public static extern int SendMessage(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
int lParam // second message
);
[DllImport("User32.dll",EntryPoint="SendMessage")]
public static extern int SendMessageS(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
string lParam // second message
);
[DllImport("User32.dll",EntryPoint="SendMessage")]
public static extern int SendMessagePtr(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
out CAPDRIVERCAPS lParam // second message
);
//Declare Function capCreateCaptureWindowA Lib "avicap32.dll" ( ByVal lpszWindowName As String, ByVal dwStyle As Long, ByVal x As Long,
//ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Integer, ByVal hWndParent As Long, ByVal nID As Long) As Long
//Declare Function capGetDriverDescriptionA Lib "avicap32.dll" ( ByVal wDriver As Integer, ByVal lpszName As String,
//ByVal cbName As Long, ByVal lpszVer As String, ByVal cbVer As Long) As Boolean
}
public struct CAPDRIVERCAPS
{
public int wDeviceIndex ; // Driver index in system.ini
public int fHasOverlay ; // Can device overlay?
public int fHasDlgVideoSource ; // Has Video source dlg?
public int fHasDlgVideoFormat ; // Has Format dlg?
public int fHasDlgVideoDisplay ; // Has External out dlg?
public int fCaptureInitialized ; // Driver ready to capture?
public int fDriverSuppliesPalettes ; // Can driver make palettes?
public int hVideoIn ; // Driver In channel
public int hVideoOut ; // Driver Out channel
public int hVideoExtIn ; // Driver Ext In channel
public int hVideoExtOut ; // Driver Ext Out channel
}
}
using System;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Runtime.InteropServices;
namespace VideoCap
{
/// <summary>
/// API 的摘要说明。
/// </summary>
public class API
{
public const int WS_BORDER = 0x800000;
public const int WS_CAPTION = 0xC00000;
public const int WS_SYSMENU = 0x80000;
public const int WS_CHILD = 0x40000000;
public const int WS_VISIBLE = 0x10000000;
public const int WS_OVERLAPPED = 0x0;
public const int WS_MINIMIZEBOX = 0x20000;
public const int WS_MAXIMIZEBOX = 0x10000;
public const int WS_THICKFRAME = 0x40000;
//public const int WS_OVERLAPPEDWINDOW = (WS_OVERLAPPED Or WS_CAPTION Or WS_SYSMENU Or WS_THICKFRAME Or WS_MINIMIZEBOX Or WS_MAXIMIZEBOX);
public const int SWP_NOMOVE = 0x2;
public const int SWP_NOSIZE = 1;
public const int SWP_NOZORDER = 0x4;
public const int HWND_BOTTOM = 1;
public const int HWND_TOPMOST = -1;
public const int HWND_NOTOPMOST = -2;
public const int SM_CYCAPTION = 4;
public const int SM_CXFRAME = 32;
public const int SM_CYFRAME = 33;
public const int WS_EX_TRANSPARENT = 0x20;
public const int GWL_STYLE = (-16);
public const int WM_USER = 0x400;
public const int WM_CAP_START = WM_USER;
public const int WM_CAP_GET_CAPSTREAMPTR = WM_CAP_START + 1;
public const int WM_CAP_SET_CALLBACK_ERROR = WM_CAP_START + 2;
public const int WM_CAP_SET_CALLBACK_STATUS = WM_CAP_START + 3;
public const int WM_CAP_SET_CALLBACK_YIELD = WM_CAP_START + 4;
public const int WM_CAP_SET_CALLBACK_FRAME = WM_CAP_START + 5;
public const int WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START + 6;
public const int WM_CAP_SET_CALLBACK_WAVESTREAM = WM_CAP_START + 7;
public const int WM_CAP_GET_USER_DATA = WM_CAP_START + 8;
public const int WM_CAP_SET_USER_DATA = WM_CAP_START + 9;
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_DRIVER_GET_NAME = WM_CAP_START + 12;
public const int WM_CAP_DRIVER_GET_VERSION = WM_CAP_START + 13;
public const int WM_CAP_DRIVER_GET_CAPS = WM_CAP_START + 14;
public const int WM_CAP_FILE_SET_CAPTURE_FILE = WM_CAP_START + 20;
public const int WM_CAP_FILE_GET_CAPTURE_FILE = WM_CAP_START + 21;
public const int WM_CAP_FILE_ALLOCATE = WM_CAP_START + 22;
public const int WM_CAP_FILE_SAVEAS = WM_CAP_START + 23;
public const int WM_CAP_FILE_SET_INFOCHUNK = WM_CAP_START + 24;
public const int WM_CAP_FILE_SAVEDIB = WM_CAP_START + 25;
public const int WM_CAP_EDIT_COPY = WM_CAP_START + 30;
public const int WM_CAP_SET_AUDIOFORMAT = WM_CAP_START + 35;
public const int WM_CAP_GET_AUDIOFORMAT = WM_CAP_START + 36;
public const int WM_CAP_DLG_VIDEOFORMAT = WM_CAP_START + 41;
public const int WM_CAP_DLG_VIDEOSOURCE = WM_CAP_START + 42;
public const int WM_CAP_DLG_VIDEODISPLAY = WM_CAP_START + 43;
public const int WM_CAP_GET_VIDEOFORMAT = WM_CAP_START + 44;
public const int WM_CAP_SET_VIDEOFORMAT = WM_CAP_START + 45;
public const int WM_CAP_DLG_VIDEOCOMPRESSION = WM_CAP_START + 46;
public const int WM_CAP_SET_PREVIEW = WM_CAP_START + 50;
public const int WM_CAP_SET_OVERLAY = WM_CAP_START + 51;
public const int WM_CAP_SET_PREVIEWRATE = WM_CAP_START + 52;
public const int WM_CAP_SET_SCALE = WM_CAP_START + 53;
public const int WM_CAP_GET_STATUS = WM_CAP_START + 54;
public const int WM_CAP_SET_SCROLL = WM_CAP_START + 55;
public const int WM_CAP_GRAB_FRAME = WM_CAP_START + 60;
public const int WM_CAP_GRAB_FRAME_NOSTOP = WM_CAP_START + 61;
public const int WM_CAP_SEQUENCE = WM_CAP_START + 62;
public const int WM_CAP_SEQUENCE_NOFILE = WM_CAP_START + 63;
public const int WM_CAP_SET_SEQUENCE_SETUP = WM_CAP_START + 64;
public const int WM_CAP_GET_SEQUENCE_SETUP = WM_CAP_START + 65;
public const int WM_CAP_SET_MCI_DEVICE = WM_CAP_START + 66;
public const int WM_CAP_GET_MCI_DEVICE = WM_CAP_START + 67;
public const int WM_CAP_STOP = WM_CAP_START + 68;
public const int WM_CAP_ABORT = WM_CAP_START + 69;
public const int WM_CAP_SINGLE_FRAME_OPEN = WM_CAP_START + 70;
public const int WM_CAP_SINGLE_FRAME_CLOSE = WM_CAP_START + 71;
public const int WM_CAP_SINGLE_FRAME = WM_CAP_START + 72;
public const int WM_CAP_PAL_OPEN = WM_CAP_START + 80;
public const int WM_CAP_PAL_SAVE = WM_CAP_START + 81;
public const int WM_CAP_PAL_PASTE = WM_CAP_START + 82;
public const int WM_CAP_PAL_AUTOCREATE = WM_CAP_START + 83;
public const int WM_CAP_PAL_MANUALCREATE = WM_CAP_START + 84;
// Following added post VFW 1.1
public const int WM_CAP_SET_CALLBACK_CAPCONTROL = WM_CAP_START + 85;
// Defines end of the message range
public const int WM_CAP_END = WM_CAP_SET_CALLBACK_CAPCONTROL;
public API()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
private const string avicap = "avicap32.dll";
// WaveOut calls
[DllImport(avicap)]
public static extern int capCreateCaptureWindow(string lpszWindowName,int dwStyle,int x,int y,int nWidth,int nHeight,IntPtr hWndParent, int nID);
[DllImport(avicap)]
public static extern bool capGetDriverDescription(int wDriver,StringBuilder lpszName ,int cbName,StringBuilder lpszVer,int cbVer);
[DllImport("User32.dll",EntryPoint="SendMessage")]
public static extern int SendMessage(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
int lParam // second message
);
[DllImport("User32.dll",EntryPoint="SendMessage")]
public static extern int SendMessageS(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
string lParam // second message
);
[DllImport("User32.dll",EntryPoint="SendMessage")]
public static extern int SendMessagePtr(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
out CAPDRIVERCAPS lParam // second message
);
//Declare Function capCreateCaptureWindowA Lib "avicap32.dll" ( ByVal lpszWindowName As String, ByVal dwStyle As Long, ByVal x As Long,
//ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Integer, ByVal hWndParent As Long, ByVal nID As Long) As Long
//Declare Function capGetDriverDescriptionA Lib "avicap32.dll" ( ByVal wDriver As Integer, ByVal lpszName As String,
//ByVal cbName As Long, ByVal lpszVer As String, ByVal cbVer As Long) As Boolean
}
public struct CAPDRIVERCAPS
{
public int wDeviceIndex ; // Driver index in system.ini
public int fHasOverlay ; // Can device overlay?
public int fHasDlgVideoSource ; // Has Video source dlg?
public int fHasDlgVideoFormat ; // Has Format dlg?
public int fHasDlgVideoDisplay ; // Has External out dlg?
public int fCaptureInitialized ; // Driver ready to capture?
public int fDriverSuppliesPalettes ; // Can driver make palettes?
public int hVideoIn ; // Driver In channel
public int hVideoOut ; // Driver Out channel
public int hVideoExtIn ; // Driver Ext In channel
public int hVideoExtOut ; // Driver Ext Out channel
}
}