using System; using System.Runtime.InteropServices; namespace Wuyin.ShoesManager ... { /**//// /// VedioCapture 的摘要说明。 /// public class VedioCapture ...{ private int hCaptureM; private bool isUnLoad = false; public VedioCapture() ...{ } [DllImport("avicap32.dll")] private static extern int capCreateCaptureWindow( string strWindowName, int dwStyle, int x, int y ,int width, int height , int hwdParent, int nID ); [DllImport("user32.dll")] private static extern int SendMessage( int hwnd , int wMsg, int wParam , int lParam ); [DllImport("user32.dll")] private static extern int SendMessage( int hwnd , int wMsg, int wParam , string lParam ); [DllImport("Kernel32.dll")] private static extern bool CloseHandle( int hObject ); public bool Initialize( System.Windows.Forms.Control aContainer , int intWidth, int intHeight ) ...{ hCaptureM = capCreateCaptureWindow( "", 0x40000000 | 0x10000000, 0,0,intWidth,intHeight,aContainer.Handle.ToInt32() ,1 ); if( hCaptureM == 0 ) return false; int ret = SendMessage( hCaptureM , 1034, 0,0 ); if( ret == 0 ) ...{ CloseHandle(hCaptureM); return false; } //WM_CAP_SET_PREVIEW ret = SendMessage( hCaptureM, 1074, 1, 0 ); if( ret == 0 ) ...{ this.UnLoad(); return false; } //WM_CAP_SET_SCALE ret = SendMessage( hCaptureM, 1077, 1, 0 ); if( ret == 0 ) ...{ this.UnLoad(); return false; } //WM_CAP_SET_PREVIEWRATE ret = SendMessage( hCaptureM, 1076, 66, 0 ); if( ret == 0 ) ...{ this.UnLoad(); return false; } return true; } public void SingleFrameBegin() ...{ // int ret = SendMessage( hCaptureM, 1094 , 0, 0 ); } public void SingleFrameEnd() ...{ // int ret = SendMessage( hCaptureM, 1095 , 0, 0 ); } public void SingleFrameMode() ...{ //WM_CAP_GRAB_FRAME int ret = SendMessage( hCaptureM, 1084 , 0, 0 ); //WM_CAP_SET_PREVIEW //int ret = SendMessage( hCaptureM, 1074 , 0, 0 ); //WM_CAP_SINGLE_FRAME //ret = SendMessage( hCaptureM, 1096 , 0, 0 ); } public void PreviewMode() ...{ int ret = SendMessage( hCaptureM, 1074 , 1, 0 ); } public void UnLoad() ...{ int ret = SendMessage( hCaptureM, 1035, 0, 0 ); CloseHandle( this.hCaptureM ); isUnLoad = true; } public void CopyToClipBorad() ...{ int ret = SendMessage( hCaptureM, 1054, 0, 0 ); } public void ShowFormatDialog() ...{ int ret = SendMessage( hCaptureM, 1065, 0, 0 ); } public void SaveToDIB( string fileName ) ...{ int ret = SendMessage( hCaptureM, 1049, 0, fileName ); } public void ShowDisplayDialog() ...{ int ret = SendMessage( hCaptureM, 1067, 0, 0 ); } public System.Drawing.Image getCaptureImage() ...{ System.Windows.Forms.IDataObject iData = System.Windows.Forms.Clipboard.GetDataObject(); System.Drawing.Image retImage = null; if( iData != null ) ...{ if( iData.GetDataPresent( System.Windows.Forms.DataFormats.Bitmap ) ) ...{ retImage = (System.Drawing.Image)iData.GetData( System.Windows.Forms.DataFormats.Bitmap ); } else if( iData.GetDataPresent( System.Windows.Forms.DataFormats.Dib ) ) ...{ retImage = (System.Drawing.Image)iData.GetData( System.Windows.Forms.DataFormats.Dib ); } } return retImage; } ~VedioCapture() ...{ if( !isUnLoad ) ...{ this.UnLoad(); } } }}