求简单的摄像头程序

yaozhiyong110 2011-03-12 10:30:22
打开自己电脑的摄像头 并将图像显示在窗口 我想实现多个窗口显示

我有vfm的一个例子 但是只有一个预览窗口 怎么控制可以有多个预览窗口？

请大侠 提供思路或代码（本人刚开始接触视频这块，所以尽量代码吧） 谢谢。。。。
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Eleven 2011-03-14
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http://download.csdn.net/source/2529616
yaozhiyong110 2011-03-14
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[Quote=引用 6 楼 hongh520 的回复:]
引用 5 楼 yaozhiyong110 的回复:
vfm 不能让 视频多窗口显示吗？？？？ 有大侠知道吗？

可以的，
建议使用vfw
[/Quote]


佩服 就为了10分？
yaozhiyong110 2011-03-14
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[Quote=引用 7 楼 singwhatiwanna 的回复:]
C/C++ code

#include <windows.h>
#include <vfw.h>
#include <commdlg.h>
#include "CapPicture.h"

LRESULT WINAPI MainWndProc( HWND, UINT, WPARAM, LPARAM );
LRESULT WINAPI SelCapDrvProc( HWND, U……
[/Quote]


我试试......谢谢...
贝隆 2011-03-14
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我有一个VB的，你看看
http://download.csdn.net/source/2979383
jwybobo2007 2011-03-14
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[Quote=引用楼主 yaozhiyong110 的回复:]
打开自己电脑的摄像头 并将图像显示在窗口 我想实现多个窗口显示

我有vfm的一个例子 但是只有一个预览窗口 怎么控制可以有多个预览窗口？

请大侠 提供思路或代码（本人刚开始接触视频这块，所以尽量代码吧） 谢谢。。。。
[/Quote]

用vfw获取数据时有视频帧回调,回调中得到的是原始的RGB图缓冲,接下来就用GDI或者DrawDib把缓冲绘制到你要的窗口里面就可以了
singwhatiwanna 2011-03-14
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#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();

VOID APIENTRY HandlePopupMenu(HWND, POINT);

DWORD WINAPI videoThreadProc(LPVOID lParam);





HANDLE ghInstance;

HWND hwndMain;

HWND hwndVideo;

HWND hwndSelCapDrvDlg;

HWND hwndSelCapDrvDlg_LBox;

HWND hwndExit;

HWND hwndMin;

HWND hwndHelp;

HWND hwndRecord;

HANDLE hVideoThread;

HRGN hRegion1;

CAPDRIVERCAPS CapDrvCaps;

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_OWNDC | CS_VREDRAW | CS_HREDRAW;

      wc.hInstance = hInstance;

      wc.hIcon = LoadIcon( NULL, IDI_APPLICATION );

      wc.hCursor = LoadCursor( NULL, IDC_ARROW );

      wc.hbrBackground = CreateSolidBrush (RGB(196, 200, 204));

      wc.lpszMenuName = "GenericAppMenu";



      wc.cbClsExtra = 0;

      wc.cbWndExtra = 0;



      RegisterClass( &wc );

   }



   ghInstance = hInstance;



   hwndMain = CreateWindow( "GenericAppClass",

      "Super Video",

      WS_POPUP,

      100,

      100,

      500,

      500,

      NULL,

      NULL,

      hInstance,

      NULL

   );



   ShowWindow( hwndMain, nCmdShow );

   SetWindowRgn(hwndMain,hRegion1,1);



   while( GetMessage( &msg, NULL, 0, 0 ) ) {

      TranslateMessage( &msg );



      DispatchMessage( &msg );

   }



   return msg.wParam;

}



LRESULT CALLBACK MainWndProc( HWND hwndMain, UINT msg, WPARAM wParam,

   LPARAM lParam )

{

   HDC hDC = GetDC(hwndMain);

   RECT rc;           

   POINT pt;  



   switch( msg ) {

	  case WM_LBUTTONDBLCLK:

	  	    SetFocus(hwndMain);

	  	    break;

      case WM_RBUTTONDOWN: 

            GetClientRect(hwndMain, (LPRECT) &rc); 

            pt.x = LOWORD(lParam); 

            pt.y = HIWORD(lParam); 

            if (PtInRect((LPRECT) &rc, pt)) 

                HandlePopupMenu(hwndMain, pt); 

            break; 

      case WM_PAINT:

         FrameRgn(hDC,hRegion1,CreateSolidBrush(RGB(0,0,0)),2,2); 

  		 BringWindowToTop(hwndSelCapDrvDlg);

         return( DefWindowProc( hwndMain, msg, wParam, lParam ));

	  case WM_COMMAND:

	  	 CAPSTATUS CapStatus;

	  	 switch( wParam ) {

 		

		 	case SOURCE:

	  	 	   if(CapDrvCaps.fHasDlgVideoSource)

	  	 	   		capDlgVideoSource(hwndVideo);

	  	 	   break;

	  	 	case FORMAT:

	  	 	   if(CapDrvCaps.fHasDlgVideoFormat)

	  	 	   {		

	  	 	   		capDlgVideoFormat(hwndMain);

	  	 	   		capGetStatus(hwndVideo, &CapStatus, sizeof(CAPSTATUS));

	  	 	   		SetWindowPos(hwndVideo, NULL, 0, 0, CapStatus.uiImageWidth,

	  	 	   					CapStatus.uiImageHeight, SWP_NOZORDER | SWP_NOMOVE);

	  	 	   }

	  	 	   break;

	  	 	case DISPLAY:

	  	 		if (CapDrvCaps.fHasDlgVideoDisplay)

	  	 			capDlgVideoDisplay(hwndVideo);

	  	 		break;

            case EXIT:

               SendMessage(hwndMain, WM_SYSCOMMAND, SC_CLOSE, 0);

               break;

            case MINIMIZE:

               SendMessage(hwndMain, WM_SYSCOMMAND, SC_MINIMIZE, 0);

               break;

            case HELP:

               SendMessage(hwndMain, WM_SYSCOMMAND, SC_CONTEXTHELP, 0);

               break;

            case RECORDVIDEO:

            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;

						hVideoThread = CreateThread(&sa, (ULONG)0, 

											videoThreadProc, (LPVOID)(ULONG)0, (ULONG)0, &id);		

						if(hVideoThread == NULL)

							MessageBox(NULL, "Creation of Record Thread failed!", "Thread", MB_OK | MB_ICONEXCLAMATION);

						

						break;

					}

				}



				if (isRecordFileOpen) 

				{

					if(isRecording)

					{

						threadEnd = true;

						capFileSaveAs(hwndVideo, recordFile);

						SetWindowText(hwndRecord, "Record Video");

						isRecording = false;

						break;

					}

					

					if(!isRecording )

					{

						int a = 0;

						

						MessageBox(hwndMain, "Do you want to write over the open file?",

									"File warning", MB_YESNO | MB_ICONWARNING);

						if (a != IDYES)

						{

							isRecordFileOpen = false;

							SendMessage(hwndMain, WM_COMMAND, MAKEWPARAM(RECORDVIDEO, BN_CLICKED), (LPARAM) hwndRecord);

						}

						

						if (a == IDYES)

						{

							capCaptureSequence(hwndVideo);

							isRecording = true;

						}

						

					break;

					}

				}

			}	

         	break;

         }

      break;

     case WM_CREATE:

      

      	RECT helpRect, minRect, exitRect;

      	HRGN helpRgn, minRgn, exitRgn;

        hRegion1 = CreateRoundRectRgn(100,100,500, 500,20,20);   

	  	hwndVideo = capCreateCaptureWindow(

	  					(LPSTR) "My Capture Window",

	  					WS_CHILD | WS_VISIBLE,

	  					150, 150, 300, 280,

	  					(HWND) hwndMain,

	  					(int) 1);

		hwndExit = CreateWindow (

				"button",

				"x",

				WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_CENTER | BS_VCENTER,

				470, 110, BUTTONSIZE, BUTTONSIZE,

				hwndMain,

				(HMENU) EXIT,

				(HINSTANCE)ghInstance,

				(LPVOID)NULL);

		hwndMin = CreateWindow (

				"button",

				"-",

				WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_CENTER | BS_VCENTER,

				450, 110, BUTTONSIZE, BUTTONSIZE,

				hwndMain,

				(HMENU) MINIMIZE,

				(HINSTANCE)ghInstance,

				(LPVOID)NULL);  		

		hwndHelp = CreateWindow (

				"button",

				"?",

				WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_CENTER | BS_VCENTER,

				430, 110, BUTTONSIZE, BUTTONSIZE, 

				hwndMain, 

				(HMENU) HELP,

				(HINSTANCE)ghInstance,

				(LPVOID)NULL);

		hwndRecord = CreateWindow (

				"button", 

				"录像", 

				WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | BS_CENTER | BS_VCENTER, 

				250, 464, 90, 28,

				hwndMain, 

				(HMENU) RECORDVIDEO,

				(HINSTANCE)ghInstance,

				(LPVOID)NULL);				

				

	  	GetClientRect(hwndHelp, &helpRect);

	  	GetClientRect(hwndMin, &minRect);

	  	GetClientRect(hwndExit, &exitRect);

	  		  		  	

	  	helpRgn = CreateEllipticRgnIndirect(&helpRect);

		minRgn = CreateEllipticRgnIndirect(&minRect);

		exitRgn = CreateEllipticRgnIndirect(&exitRect);

	  		  		

	    SetWindowRgn(hwndExit,exitRgn,1);

	    SetWindowRgn(hwndMin,minRgn,1);					  		  		

	    SetWindowRgn(hwndHelp,helpRgn,1);				

	

		hwndSelCapDrvDlg = CreateDialog((HINSTANCE)ghInstance, 

										MAKEINTRESOURCE( SELCAPDRVDLG  ), 

										0, (DLGPROC)SelCapDrvProc);

		hwndSelCapDrvDlg_LBox = GetDlgItem(hwndSelCapDrvDlg, 

   										   SELCAPDRVDLG_LSTBOX);

	    EnumCapDrv();

      break;

      case WM_DESTROY:

      	 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) &CapDrvCaps);

					capPreviewRate( hwndVideo, 66 );

					capPreview( hwndVideo, TRUE );

			}

			return TRUE;

		case WM_CLOSE:

			DestroyWindow(hwndSelCapDrvDlg);

			return TRUE;

	}



	return( 0L );

}



int EnumCapDrv()

{

	char szDeviceName[80];

	char szDeviceVersion[80];

	char item[161];

	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;

}



VOID APIENTRY HandlePopupMenu(HWND hwnd, POINT pt) 

{ 

    HMENU hmenu;    

    HMENU hmenuTrackPopup;

	hmenu = LoadMenu((HINSTANCE)ghInstance, "PopupMenu"); 

    if (hmenu == NULL) 

        return; 

    hmenuTrackPopup = GetSubMenu(hmenu, 0); 

    ClientToScreen(hwnd, (LPPOINT) &pt); 

    TrackPopupMenu(hmenuTrackPopup, TPM_LEFTALIGN | TPM_LEFTBUTTON, 

        pt.x, pt.y, 0, hwnd, NULL); 

    DestroyMenu(hmenu); 

}



DWORD WINAPI videoThreadProc(LPVOID lParam)

{

	SetWindowText(hwndRecord, "停止");

	capCaptureSequence(hwndVideo);

	isRecording = true;

	while (!threadEnd)

		;

	MessageBox(NULL, "Leaving Thread", "thread", NULL);

	return 0;

}


这个可以用，改改。
yaozhiyong110 2011-03-14
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[Quote=引用 10 楼 visualeleven 的回复:]
http://download.csdn.net/source/2529616
[/Quote]

没下下来不要紧 还扣了我的分 都无所谓 关键是这个程序说明了 要选2个摄像头才有两个画面！！

大哥 我是要一个摄像头 出来多个画面啊.....
hongh520 2011-03-14
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[Quote=引用 5 楼 yaozhiyong110 的回复:]
vfm 不能让 视频多窗口显示吗？？？？ 有大侠知道吗？
[/Quote]
可以的，
建议使用vfw
yaozhiyong110 2011-03-13
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vfm 不能让 视频多窗口显示吗？？？？ 有大侠知道吗？
疯狂石头_ 2011-03-12
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DirectX的SDK不是有摄像头的例子吗？
yaozhiyong110 2011-03-12
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没人？？？？？？？？？
愤怒的熊猫007 2011-03-12
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[Quote=引用 3 楼 dizuo 的回复:]
vfm不清楚
opencv中highgui做这个很简单。
[/Quote]
UP Opencv 中文网 网址 里面有个 例子就有
http://www.opencv.org.cn
ryfdizuo 2011-03-12
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vfm不清楚
opencv中highgui做这个很简单。
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