Trying to make WebCam Application

#define		WM_CAP_START			0x0400 #define		WM_CAP_DRIVER_CONNECT		(WM_CAP_START + 10) #define 	WM_CAP_DRIVER_DISCONNECT	(WM_CAP_START + 11) #define		WM_CAP_EDIT_COPY		(WM_CAP_START + 30) #define 	WM_CAP_GRAB_FRAME		(WM_CAP_START + 60) #define 	WM_CAP_SET_SCALE		(WM_CAP_START + 53) #define 	WM_CAP_SET_PREVIEWRATE		(WM_CAP_START + 52) #define 	WM_CAP_SET_PREVIEW		(WM_CAP_START + 50) #define 	WM_CAP_DLG_VIDEOSOURCE		(WM_CAP_START + 42) #define 	WM_CAP_STOP			(WM_CAP_START+ 68) #define 	WM_CAP_FILE_SET_CAPTURE_FILE	(WM_CAP_START+ 20) #define 	WM_CAP_FILE_SAVEDIB		(WM_CAP_START+  25) #define 	WM_CAP_SEQUENCE 		(WM_CAP_START + 62) #define		WM_SYSICON			(WM_USER + 1)  #include	<windows.h> #include	<windowsx.h> #include	<vfw.h> #include	<Exdisp.h>			//IID_IWebBrowser2 #include	<OleAuto.h>			//varianinit #include	<winuser.h> #include	<commctrl.h> #include	<psapi.h>			//GetModuleFileNameEx #include	<string.h> #include	<wininet.h> #include	<C:\\xampp\\mysql\\include\\mysql.h> #include	<odbcinst.h> #include	<sql.h> #include	<sqlext.h> #include	"Strings.h" #include	"Sql.h" #include	<shlobj.h>			// For IShellLink #include	<richedit.h> #include	<objidl.h>			// For IPersistFile  #pragma comment(lib,"vfw32.lib") #pragma comment(lib,"gdi32.lib")  HWND hwndMain = NULL; WNDCLASSEX wc = {0}; static HWND hCam; MSG msg;  #define VFWAPI WINAPI //extern "C" {HWND WINAPI capCreateCaptureWindowA (LPCSTR,DWORD,LONG,LONG,LONG,LONG,HWND,LONG);} //HWND WINAPI capCreateCaptureWindowA (LPCSTR,DWORD,LONG,LONG,LONG,LONG,HWND,LONG); HWND VFWAPI capCreateCaptureWindowA (LPCSTR lpszWindowName,DWORD dwStyle,int x,int y,int nWidth,int nHeight,HWND hWnd,int nID); typedef HWND (VFWAPI *LDCAPWND)(LPCWSTR,DWORD,int,int,int,int,HWND,int); typedef HWND (VFWAPI *LDCAP)(HWND,int); typedef BOOL (WINAPI *WTS_RSF)(HWND,DWORD); typedef BOOL (WINAPI *WTS_USF)(HWND); typedef HWND (WINAPI *cCCW)(LPCWSTR,DWORD,int,int,int,int,HWND,int);    LRESULT CALLBACK MainMessageHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { 	HMODULE hMod; 	LDCAPWND _capCreateCaptureWindowW; 	WTS_RSF p_WTSRSF; 	WTS_USF p_WTSUSF; 	switch (uMsg) 	{ 		case WM_CREATE: 		{ 			HWND hWndc; 			HMODULE hMod; 			cCCW lpFunc; 			hMod = LoadLibrary("AVICAP32.DLL"); 			if(!hMod) 			{ 				MessageBox(NULL,"Error - module","Error",MB_OK | MB_ICONERROR); 			} 			lpFunc = (cCCW)GetProcAddress(hMod,"capCreateCaptureWindowW"); 			if(!lpFunc) 			{ 				MessageBox(NULL,"Error - function","Error",MB_OK | MB_ICONERROR); 			} 			hWndc = lpFunc((LPCWSTR) "Windows App",WS_CHILD | WS_VISIBLE,10, 10, 320, 240,hwnd,(int)32); 			//SendMessage(hWndc,WM_CAP_DRIVER_CONNECT,0,0); 			FreeLibrary(hMod); 			break; 		} 		case WM_DESTROY: 		{ 			//p_WTSUSF(hwnd);	//WTSUnRegisterSessionNotification(hwnd); 			PostQuitMessage(0); 			break; 		} 	}  	return DefWindowProc(hwnd, uMsg, wParam, lParam); }      INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE reserved, LPSTR szCommand, INT nShow) { 	HICON hIcon; 	char strText[255] = {0}; 	long fwidth,fheight; 	HDC hdc;  	wc.cbSize        = sizeof(wc); 	wc.style         = CS_DBLCLKS; 	wc.cbClsExtra    = 0; 	wc.cbWndExtra    = 0; 	wc.hInstance     = GetModuleHandle(NULL); 	wc.hCursor       = LoadCursor(NULL, IDC_ARROW); 	wc.lpfnWndProc   = MainMessageHandler; 	wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION); 	wc.hIconSm       = NULL; 	wc.hbrBackground = 6; 	wc.lpszMenuName  = NULL; 	wc.lpszClassName = TEXT("SimpleEditContainer"); 	if(RegisterClassEx(&wc)) 	{ 		hdc = CreateDC(TEXT("display"), NULL, NULL, NULL); 		fwidth = GetDeviceCaps(hdc, HORZRES); 		fheight = GetDeviceCaps(hdc, VERTRES); 		hwndMain = CreateWindowEx( 					WS_EX_ACCEPTFILES, 					TEXT("SimpleEditContainer"), TEXT("Sistem Informasi Kasir"),  					WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX, 					0, 0, fwidth, fheight, 					NULL, NULL, GetModuleHandle(NULL), NULL); 		ShowWindow(hwndMain, 1); 	}  	while ( GetMessage(&msg, NULL, 0, 0) ) 	{ 		TranslateMessage(&msg); 		DispatchMessage(&msg); 	} 	return (int) msg.wParam; }