vfw.rar_VFW-camera_vfw_vfw 摄像头_视频录制

#include <windows.h> #include <vfw.h> #include <commdlg.h> #include "CapPicture.h" LRESULT WINAPI MainWndProc( HWND, UINT, WPARAM, LPARAM ); LRESULT WINAPI SelCapDrvProc( HWND, UINT, WPARAM, LPARAM ); int EnumCapDrv(); DWORD WINAPI videoThreadProc(LPVOID lParam); HANDLE ghInstance; HWND hwndMain; HWND hwndVideo; HWND hwndSelCapDrvDlg; HWND hwndSelCapDrvDlg_LBox; HWND hwndRecord; HANDLE hVideoThread; CAPDRIVERCAPS CapDrVideoCaptures; bool isRecordFileOpen = false; char recordFile[260]; bool isPicFileOpen = false; char pictureFile[260]; bool isRecording = false; bool threadEnd = false; int PASCAL WinMain( HINSTANCE hInstance,HINSTANCE hPrevInstance, LPSTR lpszCmdLine,int nCmdShow ) { WNDCLASS wc; MSG msg; if( !hPrevInstance ) { wc.lpszClassName = "GenericAppClass"; wc.lpfnWndProc = MainWndProc; wc.style = CS_HREDRAW|CS_VREDRAW;//窗口风格//CS_OWNDC | CS_VREDRAW | CS_HREDRAW; wc.hInstance = hInstance;//当前应用程序实例句柄 wc.hIcon = LoadIcon( NULL, IDI_APPLICATION );//窗口图标 wc.hCursor = LoadCursor( NULL, IDC_ARROW );//窗口光标 wc.hbrBackground=(HBRUSH)GetStockObject(LTGRAY_BRUSH);//窗口背景色为浅灰色 wc.lpszMenuName=NULL;//窗口菜单 wc.cbClsExtra = 0; wc.cbWndExtra = 0; RegisterClass( &wc );//注册窗口 } ghInstance = hInstance; hwndMain = CreateWindow( "GenericAppClass","视频捕捉",WS_OVERLAPPEDWINDOW, 200,200,460,400,NULL,NULL,hInstance,NULL); ShowWindow(hwndMain,SW_SHOWNORMAL); //显示最大化窗口 UpdateWindow(hwndMain);//更新窗口 while( GetMessage( &msg, NULL, 0, 0 ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } return msg.wParam; } LRESULT CALLBACK MainWndProc( HWND hwndMain, UINT msg, WPARAM wParam,LPARAM lParam ) { RECT rect; HDC hDC = GetDC(hwndMain); switch( msg ) { case WM_PAINT: BringWindowToTop(hwndSelCapDrvDlg);//摄像头设备列表对话框 GetClientRect(hwndMain,&rect); rect.top+=20; DrawText(hDC,TEXT("使用VFW实现视频捕捉"),-1,&rect,DT_SINGLELINE|DT_CENTER); return( DefWindowProc( hwndMain, msg, wParam, lParam )); case WM_COMMAND: switch( wParam ) { case RECORDVIDEO://录像 if(HIWORD(wParam) == BN_CLICKED && (HWND) lParam == hwndRecord) { if (!isRecordFileOpen) { OPENFILENAME ofn; ZeroMemory(&ofn, sizeof(OPENFILENAME)); ofn.lStructSize = sizeof(OPENFILENAME); ofn.hwndOwner = hwndMain; ofn.lpstrFile = recordFile; ofn.nMaxFile = sizeof(recordFile); ofn.lpstrFilter = "Video\0*.avi"; ofn.nFilterIndex = 1; ofn.lpstrFileTitle = NULL; ofn.nMaxFileTitle = 0; ofn.lpstrInitialDir = NULL; ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST; if(GetSaveFileName(&ofn) == TRUE) { strcpy(recordFile, ofn.lpstrFile); strcat(recordFile, ".avi"); isRecordFileOpen = true; DWORD id; SECURITY_ATTRIBUTES sa; sa.nLength = sizeof(SECURITY_ATTRIBUTES); sa.lpSecurityDescriptor = NULL; sa.bInheritHandle = TRUE; //开始录像线程 hVideoThread = CreateThread(&sa, (ULONG)0, videoThreadProc, (LPVOID)(ULONG)0, (ULONG)0, &id); if(hVideoThread == NULL) MessageBox(NULL, "线程创建失败!", "Thread", MB_OK | MB_ICONEXCLAMATION); break; } } if (isRecordFileOpen) //如果文件已经打开 { if(isRecording)//正在录像 { threadEnd = true;//停止录像 capFileSaveAs(hwndVideo, recordFile);//保存文件 SetWindowText(hwndRecord, "录像"); isRecording = false; break; } if(!isRecording ) { int falg = 0; MessageBox(hwndMain, "要覆盖文件吗?","File warning", MB_YESNO | MB_ICONWARNING); if (falg!= IDYES) { isRecordFileOpen = false; SendMessage(hwndMain, WM_COMMAND, MAKEWPARAM(RECORDVIDEO, BN_CLICKED), (LPARAM) hwndRecord); } if (falg== IDYES) { capCaptureSequence(hwndVideo); isRecording = true; } break; } } } break; } break; case WM_CREATE: //创建视频窗口 hwndVideo = capCreateCaptureWindow((LPSTR) "Capture Window", WS_CHILD | WS_VISIBLE,80, 50, 300, 240,(HWND) hwndMain,(int)1); //创建录像按钮 hwndRecord = CreateWindow ("button", "录像", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_CENTER | BS_VCENTER, 180, 314, 90, 28,hwndMain, (HMENU) RECORDVIDEO,(HINSTANCE)ghInstance,(LPVOID)NULL); //创建设备列表对话框 hwndSelCapDrvDlg = CreateDialog((HINSTANCE)ghInstance, MAKEINTRESOURCE(SELCAPDRVDLG), 0, (DLGPROC)SelCapDrvProc); //在对话框中创建列表框 hwndSelCapDrvDlg_LBox = GetDlgItem(hwndSelCapDrvDlg, SELCAPDRVDLG_LSTBOX); EnumCapDrv();//枚举系统摄像头设备 break; case WM_DESTROY://退出窗口 capPreview(hwndVideo, FALSE); capDriverDisconnect(hwndVideo); PostQuitMessage( 0 ); break; default: return(DefWindowProc( hwndMain, msg, wParam, lParam )); } return 0; } LRESULT CALLBACK SelCapDrvProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) { switch(msg) { case WM_INITDIALOG: return TRUE; case WM_COMMAND: switch ( wParam ) { case SELCAPDRVDLG_BUTTON: int sel = 0; SendMessage( hwndSelCapDrvDlg_LBox, LB_GETSELITEMS, 1, sel); SendMessage( hwndVideo, WM_CAP_DRIVER_CONNECT, sel, 0L); SendMessage( hwndSelCapDrvDlg, WM_CLOSE, 0, 0); SendMessage( hwndVideo, WM_CAP_DRIVER_GET_CAPS, sizeof(CAPDRIVERCAPS), (LONG) (LPVOID) &CapDrVideoCaptures); capPreviewRate( hwndVideo, 10 ); capPreview( hwndVideo, TRUE ); } return TRUE; case WM_CLOSE: DestroyWindow(hwndSelCapDrvDlg); return TRUE; } return( 0L ); } int EnumCapDrv()//枚举摄像头设备 { char szDeviceName[80]; char szDeviceVersion[80]; char item[160]; int i; for (i=0; i<10; i++) { if ( capGetDriverDescription(i, szDeviceName, sizeof(szDeviceName), szDeviceVersion, sizeof(szDeviceVersion)) ) { strcpy(item, szDeviceName); strcat(item, " "); strcat(item, szDeviceVersion); SendMessage(hwndSelCapDrvDlg_LBox, LB_ADDSTRING, 0, (LPARAM) item); SendMessage(hwndSelCapDrvDlg_LBox, LB_SETITEMDATA, i, (LPARAM) i); } } return 0; } DWORD WINAPI videoThreadProc(LPVOID lParam)//录像线程 { SetWindowText(hwndRecord, "停止录像"); capCaptureSequence(hwndVideo);//开始捕捉视频 isRecording = true; while (!threadEnd)//直到单击“停止录像”按钮，结束线程 MessageBox(NULL, "录像完毕", "thread", NULL); return 0; }