USB_Video.rar_USB摄像头枚举_枚举usb摄像头_枚举摄像头

// GetTheAVI.cpp : implementation file // #include "stdafx.h" #include "GetTheAVI.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CGetTheAVI CGetTheAVI::CGetTheAVI() { lpstrCapWndName = new char[128]; char ch[] = "MYAVI"; strcpy(lpstrCapWndName,ch); SetTheCapWndRect(CRect(0,0,320,240)); hCapWnd = NULL; m_iDriverNumber= 0; memset(m_DriverDescript,-1,sizeof(m_DriverDescript)); m_iTheCurrentSelectDriver = 0; } CGetTheAVI::~CGetTheAVI() { if (lpstrCapWndName) delete lpstrCapWndName; //capCapture //cap capCaptureStop(hCapWnd); //capDriverDisconnect(hCapWnd); //CloseHandle(hCapWnd); //hCapWnd->unused =TRUE; } BEGIN_MESSAGE_MAP(CGetTheAVI, CStatic) //{{AFX_MSG_MAP(CGetTheAVI) // NOTE - the ClassWizard will add and remove mapping macros here. //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CGetTheAVI message handlers BOOL CGetTheAVI::InitDevice(HWND hparent) { BOOL bret =CreateTheCapWND(hparent); if (!bret) return FALSE; bret = FALSE; char szDeviceName[80]; char szDeviceVersion[80]; for (int wIndex = 0; wIndex < 10; wIndex++) { if (capGetDriverDescription (wIndex, szDeviceName, sizeof (szDeviceName), szDeviceVersion, sizeof (szDeviceVersion)) ) { // Append name to list of installed capture drivers // and then let the user select a driver to use. m_DriverDescript[m_iDriverNumber].SaveTheDeviceInfomation(szDeviceName,szDeviceVersion,wIndex); //m_DriverDescript[m_iDriverNumber].index = wIndex; m_iDriverNumber++; } } if (m_iDriverNumber<=0) { MessageBox("没找到摄像头"); return FALSE; } return TRUE; } BOOL CGetTheAVI::CreateTheCapWND(HWND hparent) { HWND hwnd = capCreateCaptureWindow(lpstrCapWndName,WS_CHILD|WS_VISIBLE, m_RectCapWnd.left,m_RectCapWnd.top, m_RectCapWnd.right-m_RectCapWnd.left, m_RectCapWnd.bottom-m_RectCapWnd.top, hparent,1); if (!hwnd){ MessageBox("创建捕获窗口失败！"); return FALSE; } hCapWnd = hwnd; capSetCallbackOnError(hCapWnd,(FARPROC)ErrorCallbackProc); capSetCallbackOnStatus(hCapWnd,(FARPROC)StatusCallbackProc); capSetCallbackOnFrame(hCapWnd,(FARPROC)FrameCallbackProc); return TRUE; } void CGetTheAVI::SetTheCapWndRect(CRect &r) { if (r!=m_RectCapWnd) { m_RectCapWnd = r; } } BOOL CGetTheAVI::SelectTheDeviceAndConnect(UINT index) { if(!capDriverConnect(hCapWnd,index)) return FALSE; m_iTheCurrentSelectDriver = index; return TRUE; } BOOL CGetTheAVI::StopTheConnection(UINT index) { if(!capDriverDisconnect (hCapWnd)) return FALSE; capCaptureStop(hCapWnd); return TRUE; } BOOL CGetTheAVI::StartPreview() { capGetStatus(hCapWnd, &m_capStatus, sizeof (CAPSTATUS)); ::SetWindowPos(hCapWnd, NULL, 0, 0, m_capStatus.uiImageWidth, m_capStatus.uiImageHeight, SWP_NOZORDER | SWP_NOMOVE); //capCaptureSequenceNoFile(hCapWnd); //capDriverGetCaps(ghWndCap,&gCapDriverCaps,sizeof(CAPDRIVERCAPS)); if(m_capDrive.fHasDlgVideoSource)capDlgVideoSource(hCapWnd); //Video source 对话框 if(m_capDrive.fHasDlgVideoFormat)capDlgVideoFormat(hCapWnd); // Video format 对话框 if(m_capDrive.fHasDlgVideoDisplay)capDlgVideoDisplay(hCapWnd); // Video display 对话框 capPreviewRate(hCapWnd, 66); // 设置Preview模式的显示速率 capPreview(hCapWnd, TRUE); return TRUE; } BOOL CGetTheAVI::ENDPrivew() { if(capPreview(hCapWnd, false))return TRUE; else return FALSE; } LRESULT CGetTheAVI::StatusCallbackProc(HWND hWnd, int nID, LPSTR lpStatusText) { if (!hWnd) return FALSE; // if (nID == 0) { // Clear old status messages. // ::SetWindowText(hWnd, (LPSTR) lpstrCapWndName); // return (LRESULT) TRUE; // } // Show the status ID and status text... char gachBuffer[128]; wsprintf(gachBuffer, "Status# %d: %s", nID, lpStatusText); ::SetWindowText(hWnd, (LPSTR)gachBuffer); return (LRESULT) TRUE; } LRESULT CGetTheAVI::ErrorCallbackProc(HWND hWnd, int nErrID,LPSTR lpErrorText) { if (!hWnd) return FALSE; if (nErrID == 0) // Starting a new major function. return TRUE; // Clear out old errors. // Show the error identifier and text. char gachBuffer[128]; wsprintf(gachBuffer, "Error# %d", nErrID); AfxMessageBox(gachBuffer); return (LRESULT) TRUE; } LRESULT CGetTheAVI::FrameCallbackProc(HWND hWnd, LPVIDEOHDR lpVHdr) { if (!hWnd) return FALSE; char gachBuffer[128]; wsprintf(gachBuffer, "Preview frame# %ld "/*, gdwFrameNum++*/); ::SetWindowText(hWnd, (LPSTR)gachBuffer); return (LRESULT) TRUE ; } BOOL CGetTheAVI::SaveTheAVI(CString &szCaptureFile) { capFileSetCaptureFile( hCapWnd, szCaptureFile.GetBuffer(30)); //指定捕获文件名 szCaptureFile.ReleaseBuffer(); capFileAlloc(hCapWnd, (1024L * 1024L * 10)); //为捕获文件分配存储空间 capCaptureSequence(hCapWnd); //开始捕获视频序列 capGrabFrame(hCapWnd); //捕获单帧图像 return TRUE; }