// test1.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "resource.h"
#define MAX_LOADSTRING 100
HINSTANCE hInst;								// current instance
TCHAR szTitle[MAX_LOADSTRING];								// The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];								// The title bar text





#include <setupapi.h>


#ifndef GUID829H_INC
#define GUID829H_INC

#include <objbase.h>
#include <initguid.h>


DEFINE_GUID(GUID_CLASS_I82930_BULK, 
0x076c7dcd, 0x1795, 0x4a08, 0x9f, 0xbf, 0xaa, 0x78, 0x42, 0x3c, 0x26, 0xf0);


#endif 
LPGUID pGuid = (LPGUID) &GUID_CLASS_I82930_BULK;


// Global Variables:
BOOL GetDeviceName (HDEVINFO HardwareDeviceInfo,
                                  PSP_INTERFACE_DEVICE_DATA DeviceInfoData,
                                  char **pDevName)
{
  PSP_INTERFACE_DEVICE_DETAIL_DATA functionClassDeviceData = NULL;
  ULONG                            predictedLength = 0;
  ULONG                            requiredLength = 0;

  HANDLE hOut = INVALID_HANDLE_VALUE;

  //
  // allocate a function class device data structure to receive the
  // goods about this particular device.
  //
  SetupDiGetInterfaceDeviceDetail(HardwareDeviceInfo,
                                  DeviceInfoData,
                                  NULL,  // probing so no output buffer yet
                                  0,     // probing so output buffer length of zero
                                  &requiredLength,
                                  NULL); // not interested in the specific dev-node

  predictedLength = requiredLength;

  functionClassDeviceData = (PSP_INTERFACE_DEVICE_DETAIL_DATA) malloc (predictedLength);
  functionClassDeviceData->cbSize = sizeof (SP_INTERFACE_DEVICE_DETAIL_DATA);

  //
  // Retrieve the information from Plug and Play.
  //
  if (! SetupDiGetInterfaceDeviceDetail(HardwareDeviceInfo,
                                        DeviceInfoData,
                                        functionClassDeviceData,
                                        predictedLength,
                                        &requiredLength,
                                        NULL))
  {
    free(functionClassDeviceData);
    return FALSE;
  }

  *pDevName = strdup(functionClassDeviceData->DevicePath) ;

  free(functionClassDeviceData);
	
  return TRUE;
}
int findmid(char *target,char *source, int length)
{
	int i,j;
	int slen;
	int flag;
	slen = strlen(target);
	for (i=0;i<slen;i++)
		{
		flag = 0;
		for (j=0;j<length;j++)
			{
			if ( target[i+j] == source[j] )
				flag++;
			}
		if ( flag == length )
				return i;
		}
return -1;
}
 int GetUsbDeviceListName(char** pDeviceList[])
{

  ULONG                    NumberDevices;
  HDEVINFO                 hardwareDeviceInfo;
  SP_INTERFACE_DEVICE_DATA deviceInfoData;
   
   // Open a handle to the plug and play dev node.
  // SetupDiGetClassDevs() returns a device information set that contains info on all
  // installed devices of a specified class.
  //
  hardwareDeviceInfo = SetupDiGetClassDevs (
                         pGuid,
                         NULL,            // Define no enumerator (global)
                         NULL,            // Define no
                         (DIGCF_PRESENT | // Only Devices present
                         DIGCF_INTERFACEDEVICE)); // Function class devices.
  NumberDevices = 0;
   deviceInfoData.cbSize = sizeof(SP_INTERFACE_DEVICE_DATA);
  *pDeviceList = (char **) malloc (sizeof(char *) * 128);

  do 
  {
      

      // SetupDiEnumDeviceInterfaces() returns information about device interfaces
      // exposed by one or more devices. Each call returns information about one interface;
      // the routine can be called repeatedly to get information about several interfaces
      // exposed by one or more devices.
      if(SetupDiEnumDeviceInterfaces (hardwareDeviceInfo,
                                      0, // We don't care about specific PDOs
                                      pGuid,
                                      NumberDevices,
                                      &deviceInfoData)) {
		GetDeviceName(hardwareDeviceInfo,&deviceInfoData,&((*pDeviceList)[NumberDevices++]));
      } 
   } while (ERROR_NO_MORE_ITEMS != GetLastError()) ;



  // SetupDiDestroyDeviceInfoList() destroys a device information set
  // and frees all associated memory.
  SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);

  return NumberDevices;

}


void movestr(char * target, char *source , int length )
{
	int i;
	for (i=0;i<length;i++)
		target[i] = source[i];
	target[i] = 0;
}
void test()
{
	unsigned int nbConnectedDevices, i;
	char ** strConnectedDevices;
	char target[256];
	char teststr[256];

	int vidoff,pidoff;
	HANDLE m_hPipeOut;
	DWORD length,length2;
	char sPipeNameOut[MAX_PATH];



		nbConnectedDevices = GetUsbDeviceListName(&strConnectedDevices);
 		nbConnectedDevices = 1;
		for ( i = 0; i < nbConnectedDevices; ++i) 
			{
			strcpy(target,(const char *)_strdup(strConnectedDevices[i]));
			vidoff = findmid(target,"076c",4);
			pidoff = findmid(target,"0204",4);

			if (( vidoff != -1 ) & ( pidoff != -1 ))
				{
				strcpy(sPipeNameOut, target);
				strcat(sPipeNameOut, "\\PIPE00");
 				strcpy(target,sPipeNameOut);
				m_hPipeOut = ::CreateFile(target, 
                            GENERIC_WRITE,
                            FILE_SHARE_WRITE,
							NULL,
							OPEN_EXISTING, 
                            0,
      						NULL);			
				strcpy(teststr,"Do you see me ");
				length = strlen(teststr);
				int retry;
				retry = 3;
				Sleep(10);
AGAIN:
				if(! WriteFile(m_hPipeOut, teststr, length, &length2, NULL))
					{
					DWORD dwerr = ::GetLastError();
					retry--;
					if ( retry > 0 )
						goto AGAIN;
					}
			     CloseHandle(m_hPipeOut);
				}
		}
}
// Foward declarations of functions included in this code module:
ATOM				MyRegisterClass(HINSTANCE hInstance);
BOOL				InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK	About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
 	// TODO: Place code here.
	test();
	MSG msg;
	HACCEL hAccelTable;

	// Initialize global strings
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_TEST1, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);

	// Perform application initialization:
	if (!InitInstance (hInstance, nCmdShow)) 
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_TEST1);

	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage is only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;

	wcex.cbSize = sizeof(WNDCLASSEX); 

	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= (WNDPROC)WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, (LPCTSTR)IDI_TEST1);
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= (LPCSTR)IDC_TEST1;
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);

	return RegisterClassEx(&wcex);
}

//
//   FUNCTION: InitInstance(HANDLE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;

   hInst = hInstance; // Store instance handle in our global variable

   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//
//  FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND	- process the application menu
//  WM_PAINT	- Paint the main window
//  WM_DESTROY	- post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;
	TCHAR szHello[MAX_LOADSTRING];
	LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);

	switch (message) 
	{
		case WM_COMMAND:
			wmId    = LOWORD(wParam); 
			wmEvent = HIWORD(wParam); 
			// Parse the menu selections:
			switch (wmId)
			{
				case IDM_ABOUT:
				   DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
				   break;
				case IDM_EXIT:
				   DestroyWindow(hWnd);
				   break;
				default:
				   return DefWindowProc(hWnd, message, wParam, lParam);
			}
			break;
		case WM_PAINT:
			hdc = BeginPaint(hWnd, &ps);
			// TODO: Add any drawing code here...
			RECT rt;
			GetClientRect(hWnd, &rt);
			DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
			EndPaint(hWnd, &ps);
			break;
		case WM_DESTROY:
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}

// Mesage handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_INITDIALOG:
				return TRUE;

		case WM_COMMAND:
			if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) 
			{
				EndDialog(hDlg, LOWORD(wParam));
				return TRUE;
			}
			break;
	}
    return FALSE;
}