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Updated: VJoy Feeder, FIFA12 edition.

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Jan 9th, 2012
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  1. //////////////////////////////////////////////////////////////////////
  2. // This console application demonstrates how to wrive a vJoy client
  3. // Не везде удалял авторские комменты. Виноват, я ленивый.
  4. //Тут где-то был копирайт, так вот, самая большая няша, которой мы обязаны
  5. //этим кодом, - это Shaul Eizikovich. Большое ему спасибо.
  6. //////////////////////////////////////////////////////////////////////
  7.  
  8. #include "stdafx.h"
  9. #include "vjoyclient.h"
  10. #include <malloc.h>
  11. #include <iostream>
  12. //#include <Windows.h>
  13.  
  14. #define STICK_STEP 1000
  15. //#define OLD_CONTROLS
  16.  
  17. using namespace std;
  18.  
  19. //Так мне удобно сравнивать состояния геймпада на двух соседних проходах цикла
  20. bool operator== (JOYSTICK_POSITION &p1, JOYSTICK_POSITION &p2)
  21. {
  22.     return (p1.bHats == p2.bHats) &&
  23.         (p1.lButtons == p2.lButtons) &&
  24.         (p1.wAxisX == p2.wAxisX) &&
  25.         (p1.wAxisY == p2.wAxisY) &&
  26.         (p1.wAxisZ == p2.wAxisZ) &&
  27.         (p1.wAxisZRot == p2.wAxisZRot);
  28. }
  29. bool operator!= (JOYSTICK_POSITION &p1, JOYSTICK_POSITION &p2)
  30. {
  31.     return !(p1==p2);
  32. }
  33. int
  34. __cdecl
  35. _tmain(__in int argc, __in PZPWSTR argv)
  36. {
  37.  
  38.     HDEVINFO hDeviceInfo;
  39.     TCHAR ErrMsg[1000];
  40.     ULONG  bytes;
  41.     HANDLE hDevice;
  42.     USHORT X, Y, Z, ZR;
  43.     JOYSTICK_POSITION   iReport, iOldReport;
  44.     PVOID pPositionMessage;
  45.     UINT    IoCode = LOAD_POSITIONS;
  46.     UINT    IoSize = sizeof(JOYSTICK_POSITION);
  47.     HID_DEVICE_ATTRIBUTES attrib;
  48.  
  49.  
  50.     // ---------------------------------------------------------------------------------------------------------- \\
  51.     // Tests if vJoy device is installed
  52.     // This call to the system requests installation information for the device by its ID (GUID_DEVINTERFACE_VJOY)
  53.     // It does not tests its functionality and it does not care if it is disabled.
  54.     // Returns a valid handle if a driver identified by GUID_DEVINTERFACE_VJOY is installed (Enabeled or Disabled)
  55.     hDeviceInfo = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VJOY, NULL, NULL, DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);
  56.     if (hDeviceInfo == INVALID_HANDLE_VALUE)
  57.     {
  58.         GetErrorString(ErrMsg,1000);
  59.         _tprintf(_T("[E] SetupDiGetClassDevs failed with error: %s\n"), ErrMsg);
  60.         return -1;
  61.     };
  62.     // ---------------------------------------------------------------------------------------------------------- \\
  63.  
  64.  
  65.     // ---------------------------------------------------------------------------------------------------------- \\
  66.     // Opens vJoy device for writing
  67.     // Returns a valid handle to the device if the device is responsive
  68.     // Returns an INvalid handle if the device is not responding for some reason
  69.     hDevice = OpenJoystickDevice();
  70.     if (hDevice  == INVALID_HANDLE_VALUE)
  71.         return -1;
  72.     // ---------------------------------------------------------------------------------------------------------- \\
  73.  
  74.  
  75.     // ---------------------------------------------------------------------------------------------------------- \\
  76.     // Get the driver attributes (Vendor ID, Product ID, Version Number)
  77.     attrib.Size = sizeof (HID_DEVICE_ATTRIBUTES);   // Prepare the buffer that gets the data
  78.     IoCode = IOCTL_VJOY_GET_ATTRIB;                 // The op-code for this request
  79.  
  80.     // Now - access the device (vJoy) with the right op-code and get the data into the buffer (attrib)
  81.     BOOL res = DeviceIoControl(hDevice, IoCode, NULL, 0, &(attrib), sizeof (HID_DEVICE_ATTRIBUTES), &bytes, NULL);
  82.     if (!res)
  83.     {
  84.         GetErrorString(ErrMsg,1000);
  85.         _tprintf(_T("[E] IOCTL_VJOY_GET_ATTRIB failed with error: %s\n"), ErrMsg);
  86.     }
  87.     else
  88.         _tprintf(_T("[I] VendorID:0x%04X ProductID:0x%04X VersionNumber:%d\n"), attrib.VendorID,  attrib.ProductID, attrib.VersionNumber);
  89.     // Expected result: "VendorID:0x1234 ProductID:0xBEAD VersionNumber:2"
  90.     // ---------------------------------------------------------------------------------------------------------- \\
  91.  
  92.     // Initialize axes X,Y,Z,Z-Rotation
  93.     X = 20;
  94.     Y = 30;
  95.     Z = 40;
  96.     ZR = 80;  
  97.     int XValue = 0x3FFF;
  98.     int YValue = 0x3FFF;
  99.     int XValue_c = 0;
  100.     int YValue_c = 0;
  101.    
  102.     while (1)
  103.     {
  104.        
  105.         bool shift = 0!=GetAsyncKeyState(VK_LSHIFT);
  106.  
  107.         bool leftKey = 0!=GetAsyncKeyState(VK_LEFT);
  108.         bool rightKey = 0!=GetAsyncKeyState(VK_RIGHT);
  109.         bool upKey = 0!=GetAsyncKeyState(VK_UP);
  110.         bool downKey = 0!=GetAsyncKeyState(VK_DOWN);
  111.  
  112.         bool homeKey = 0!=GetAsyncKeyState(VK_HOME);
  113.         bool delKey = 0!=GetAsyncKeyState(VK_DELETE);
  114.         bool endKey = 0!=GetAsyncKeyState(VK_END);
  115.         bool pgdnKey = 0!=GetAsyncKeyState(VK_NEXT);
  116.  
  117. #ifdef OLD_CONTROLS
  118.         XValue = YValue = 0x3fff;
  119.         if(!leftKey != !rightKey)      
  120.             XValue = leftKey ? 0 : 0x7FFF;
  121.         if(!upKey != !downKey)
  122.             YValue = upKey ? 0 : 0x7FFF;
  123.  
  124. #else
  125.         if(leftKey)
  126.         {
  127.             if(XValue_c > 0) XValue_c = 0;
  128.                 XValue_c -= STICK_STEP;
  129.         }
  130.         if(rightKey)
  131.         {
  132.             if(XValue_c < 0) XValue_c = 0;
  133.             XValue_c += STICK_STEP;
  134.         }
  135.         if(upKey)
  136.         {
  137.             if(YValue_c > 0) YValue_c = 0;
  138.             YValue_c -= STICK_STEP;
  139.         }
  140.         if(downKey)
  141.         {
  142.             if(YValue_c < 0) YValue_c = 0;
  143.             YValue_c += STICK_STEP;
  144.         }
  145.         if(XValue_c<-16383) XValue_c = -16383;
  146.         if(YValue_c<-16383) YValue_c = -16383;
  147.         if(XValue_c>16384) XValue_c = 16384;
  148.         if(YValue_c>16384) YValue_c = 16384;
  149.        
  150.         if (!leftKey && !rightKey)
  151.         {
  152.             XValue_c = 0;
  153.         }
  154.         if(!upKey && !downKey)
  155.         {
  156.             /*if (abs(XValue_c)<(2*STICK_STEP)) XValue_c = 0;
  157.             else XValue_c -= ((XValue_c>0) ? (2*STICK_STEP): (-2*STICK_STEP));
  158.             if (abs(YValue_c)<(2*STICK_STEP)) YValue_c = 0;
  159.             else YValue_c -= ((YValue_c<0) ? -(2*STICK_STEP): (2*STICK_STEP));*/
  160.             YValue_c = 0;
  161.         }
  162.         /*if(!upKey && !downKey)
  163.         {
  164.         }*/
  165.         XValue = XValue_c + 0x3FFF;
  166.         YValue = YValue_c + 0x3fff;
  167. #endif
  168.         if(!shift)
  169.         {
  170.             X = XValue;
  171.             Y = YValue;
  172.             Z = ZR = 0x3FFF;           
  173.         }
  174.         else
  175.         {
  176.             Z = XValue;
  177.             ZR = YValue;
  178.             X = Y = 0x3FFF;
  179.         }        
  180.  
  181.         iReport.bHats = 4;
  182.         if(delKey) iReport.bHats = 3;
  183.         if(homeKey) iReport.bHats = 0;
  184.         if(pgdnKey) iReport.bHats = 1;
  185.         if(endKey) iReport.bHats = 2;
  186.          
  187.         // Set axes X,Y,Z,Z-Rotation to current values
  188.         iReport.wAxisX=X;
  189.         iReport.wAxisY=Y;
  190.         iReport.wAxisZ=Z;
  191.         iReport.wAxisZRot=ZR;
  192.        
  193.  
  194.         iReport.lButtons = 0;
  195.         if (0!=GetAsyncKeyState(0x41)) iReport.lButtons |= 0x1; //VJoy Button1 (X Button) is set to "A" key
  196.         if (0!=GetAsyncKeyState(0x53)) iReport.lButtons |= 0x2; //(A Button) => "S" key
  197.         if (0!=GetAsyncKeyState(0x44)) iReport.lButtons |= 0x4; //(B Button) => "D" key
  198.         if (0!=GetAsyncKeyState(0x57)) iReport.lButtons |= 0x8; //(Y Button) => "W" key
  199.         if (0!=GetAsyncKeyState(0x51)) iReport.lButtons |= 0x10; //(LB button) => "Q" key
  200.         if (0!=GetAsyncKeyState(0x45)) iReport.lButtons |= 0x20; //(RB button) => "E" key
  201.         if (0!=GetAsyncKeyState(0x5a)) iReport.lButtons |= 0x40; //(LT button) => "Z" key
  202.         if ((0!=GetAsyncKeyState(0x43)) || shift) iReport.lButtons |= 0x80; //(RT button) => "C" key or LSHIFT
  203.         if (0!=GetAsyncKeyState(VK_ESCAPE)) iReport.lButtons |= 0x100; //(Start button) => ESC, как ни странно
  204.         if (0!=GetAsyncKeyState(VK_RETURN)) iReport.lButtons |= 0x200; //(Back button) => Enter, что удивительно. Мне так нравится.
  205.          
  206.         if(iOldReport != iReport)
  207.         {
  208.             // Buffer hoding the joystick position (iReport) is ready
  209.             // Cast it to PVOID and print some of it       
  210.             pPositionMessage = (PVOID)(&iReport);
  211.             //_tprintf(_T("Input: X=%4x, Y=%4x, Buttons=%X; \n"), iReport.wAxisX, iReport.wAxisY, iReport.lButtons);
  212.        
  213.             // Prepare op-code and buffer size for access to vJoy device
  214.             IoCode = LOAD_POSITIONS;
  215.             IoSize = sizeof(JOYSTICK_POSITION);
  216.  
  217.             // Send joystick position structure to vJoy device
  218.             if (!DeviceIoControl (hDevice, IoCode, pPositionMessage, IoSize, NULL, 0, &bytes, NULL))
  219.             {
  220.                 _tprintf(_T("Ioctl to vJoy device failed\n"));
  221.                 break;
  222.             }
  223.  
  224.             iOldReport = iReport;
  225.         }
  226.         Sleep(1);
  227.     };
  228.  
  229.  
  230.     // Loop interupted - close handle and exit
  231.     CloseHandle(hDevice);
  232.     _tprintf(_T("OK\n"));
  233.  
  234.     return 0;
  235. }
  236.  
  237. /*
  238. Open vJoy device
  239. The handle this function returns will be used as the means to communicate with the device
  240. Return handle to open device or INVALID_HANDLE_VALUE
  241. */
  242. HANDLE OpenJoystickDevice(void)
  243. {
  244.     HANDLE hDevice;
  245.     TCHAR ErrMsg[1000];
  246.  
  247.  
  248.     // At the moment vJoy is opened as DOS_FILE_NAME ("\\.\PPJoyIOCTL1") - ASCII only!
  249.     _tprintf(_T("CreateFile:  %s\n"), DOS_FILE_NAME);
  250.     hDevice = CreateFileA(DOS_FILE_NAME, GENERIC_WRITE | GENERIC_READ, FILE_SHARE_WRITE | FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
  251.     if (hDevice == INVALID_HANDLE_VALUE)
  252.     {
  253.         DWORD err = GetErrorString(ErrMsg,1000);
  254.         _tprintf(_T("[E=0x%x] CreateFile failed for %s with error: %s\n"), err, DOS_FILE_NAME, ErrMsg);
  255.         return INVALID_HANDLE_VALUE;
  256.     };
  257.     return hDevice;
  258. }
  259.  
  260.  
  261.  
  262. /* Helper Functions */
  263. DWORD GetErrorString(TCHAR * Msg, int Size)
  264. {
  265.     TCHAR * s;
  266.     DWORD errorcode = GetLastError();
  267.     int nTChars = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,  NULL, errorcode, 0, (LPSTR)&s,  0, NULL);
  268.     if (!nTChars)
  269.         return errorcode;
  270.  
  271.     _tcsncpy_s(Msg, Size, s, Size);
  272.     LocalFree(s);
  273.     return errorcode;
  274. }
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