arch/win32/d3dframe/ddenum.cpp

   1 //-----------------------------------------------------------------------------
   2 // File: ddenum.cpp
   3 //
   4 // Desc: This sample demonstrates how to enumerate all of the devices and show
   5 //       the driver information about each.
   6 //
   7 //
   8 // Copyright (c) 1998 Microsoft Corporation. All rights reserved.
   9 //-----------------------------------------------------------------------------
  10
  11 #ifndef WIN32_LEAN_AND_MEAN
  12 #define WIN32_LEAN_AND_MEAN
  13 #endif
  14 //-----------------------------------------------------------------------------
  15 // Include files
  16 //-----------------------------------------------------------------------------
  17 #include <stdio.h>
  18 #include <stdarg.h>
  19 #include <windows.h>
  20 #include <ddraw.h>
  21 #include "resource.h"
  22
  23 //-----------------------------------------------------------------------------
  24 // Local definitions
  25 //-----------------------------------------------------------------------------
  26 #define NAME            "DDEnum"
  27 #define TITLE           "DirectDraw Enumeration Example"
  28
  29 //-----------------------------------------------------------------------------
  30 // Default settings
  31 //-----------------------------------------------------------------------------
  32 #define MAX_DEVICES     16
  33
  34 //-----------------------------------------------------------------------------
  35 // Global Variables
  36 //-----------------------------------------------------------------------------
  37 int                     g_iMaxDevices = 0;
  38 struct{
  39     DDDEVICEIDENTIFIER  DeviceInfo;
  40     DDDEVICEIDENTIFIER  DeviceInfoHost;
  41 } g_DeviceInfo[MAX_DEVICES];
  42
  43
  44
  45
  46 //-----------------------------------------------------------------------------
  47 // Name: InitFail()
  48 // Desc: This function is called if an initialization function fails
  49 //-----------------------------------------------------------------------------
  50 void
  51 InitFail(LPCTSTR szError, ...)
  52 {
  53     char            szBuff[128];
  54     va_list         vl;
  55
  56     va_start(vl, szError);
  57     vsprintf(szBuff, szError, vl);
  58     MessageBox(NULL, szBuff, TITLE, MB_OK);
  59     va_end(vl);
  60 }
  61
  62
  63
  64
  65 //-----------------------------------------------------------------------------
  66 // Name: SetInfoDlgText()
  67 // Desc: Update all of the text and buttons in the dialog
  68 //-----------------------------------------------------------------------------
  69 void
  70 SetInfoDlgText(HWND hDlg, int iCurrent, DWORD dwHost)
  71 {
  72     char        szBuff[128];
  73     GUID        *pGUID;
  74     LPDDDEVICEIDENTIFIER pDI;
  75
  76     if (dwHost == DDGDI_GETHOSTIDENTIFIER)
  77         CheckRadioButton( hDlg, IDC_RADIO_DEVICE, IDC_RADIO_HOST, IDC_RADIO_HOST );
  78     else
  79         CheckRadioButton( hDlg, IDC_RADIO_DEVICE, IDC_RADIO_DEVICE, IDC_RADIO_DEVICE );
  80
  81     pDI = &g_DeviceInfo[iCurrent].DeviceInfo;
  82     if (dwHost == DDGDI_GETHOSTIDENTIFIER)
  83         pDI = &g_DeviceInfo[iCurrent].DeviceInfoHost;
  84
  85     wsprintf(szBuff, "Device information for device %d of %d",iCurrent + 1,g_iMaxDevices);
  86     SetDlgItemText( hDlg, IDC_RADIO_DEVICE, szBuff);
  87
  88     //Device ID stuff:
  89     wsprintf(szBuff,"%08X",pDI->dwVendorId);
  90     SetDlgItemText( hDlg, IDC_DWVENDORID, szBuff);
  91     wsprintf(szBuff,"%08X",pDI->dwDeviceId);
  92     SetDlgItemText( hDlg, IDC_DWDEVICEID, szBuff);
  93     wsprintf(szBuff,"%08X",pDI->dwSubSysId);
  94     SetDlgItemText( hDlg, IDC_DWSUBSYS, szBuff);
  95     wsprintf(szBuff,"%08X",pDI->dwRevision);
  96     SetDlgItemText( hDlg, IDC_DWREVISION, szBuff);
  97
  98     //Driver version:
  99     wsprintf(szBuff,"%d.%02d.%02d.%04d",
 100         HIWORD(pDI->liDriverVersion.u.HighPart),
 101         LOWORD(pDI->liDriverVersion.u.HighPart),
 102         HIWORD(pDI->liDriverVersion.u.LowPart),
 103         LOWORD(pDI->liDriverVersion.u.LowPart) );
 104     SetDlgItemText( hDlg, IDC_VERSION, szBuff);
 105
 106     //Device description and HAL filename
 107     SetDlgItemText( hDlg, IDC_DESCRIPTION, pDI->szDescription);
 108     SetDlgItemText( hDlg, IDC_FILENAME, pDI->szDriver);
 109
 110     //Unique driver/device identifier:
 111     pGUID = &pDI->guidDeviceIdentifier;
 112     wsprintf(szBuff, "%08X-%04X-%04X-%02X%02X%02X%02X%02X%02X%02X%02X",
 113              pGUID->Data1, pGUID->Data2, pGUID->Data3,
 114              pGUID->Data4[0], pGUID->Data4[1], pGUID->Data4[2], pGUID->Data4[3],
 115              pGUID->Data4[4], pGUID->Data4[5], pGUID->Data4[6], pGUID->Data4[7]);
 116     SetDlgItemText( hDlg, IDC_GUID, szBuff);
 117
 118     // Change the state and style of the Prev and Next buttons if needed
 119     if (0 == iCurrent)
 120     {
 121         // The Prev button should be disabled
 122         SetFocus(GetDlgItem(hDlg, IDOK));
 123         SendDlgItemMessage( hDlg, IDC_PREV, BM_SETSTYLE, BS_PUSHBUTTON, TRUE);
 124         SendMessage(hDlg, DM_SETDEFID, IDOK, 0);
 125         EnableWindow(GetDlgItem(hDlg, IDC_PREV), FALSE);
 126     }
 127     else
 128         if (IsWindowEnabled(GetDlgItem(hDlg, IDC_PREV)) == FALSE)
 129             EnableWindow(GetDlgItem(hDlg, IDC_PREV), TRUE);
 130
 131     if (iCurrent >= (g_iMaxDevices - 1))
 132     {
 133         // The Next button should be disabled
 134         SetFocus(GetDlgItem(hDlg, IDOK));
 135         SendDlgItemMessage( hDlg, IDC_NEXT, BM_SETSTYLE, BS_PUSHBUTTON, TRUE);
 136         SendMessage(hDlg, DM_SETDEFID, IDOK, 0);
 137         EnableWindow(GetDlgItem(hDlg, IDC_NEXT), FALSE);
 138     }
 139     else
 140         if (IsWindowEnabled(GetDlgItem(hDlg, IDC_NEXT)) == FALSE)
 141             EnableWindow(GetDlgItem(hDlg, IDC_NEXT), TRUE);
 142 }
 143
 144
 145
 146
 147 //-----------------------------------------------------------------------------
 148 // Name: InfoDlgProc()
 149 // Desc: The dialog window proc
 150 //-----------------------------------------------------------------------------
 151 LRESULT CALLBACK
 152 InfoDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 153 {
 154 //    RECT            rc;
 155     static int      iCurrent = 0;
 156     static DWORD    dwHost = 0;
 157
 158     switch (uMsg)
 159     {
 160         case WM_INITDIALOG:
 161             // Setup the first devices text
 162             SetInfoDlgText(hDlg, iCurrent, dwHost);
 163             return TRUE;
 164         case WM_COMMAND:
 165             switch (HIWORD(wParam))
 166             {
 167                 case BN_CLICKED:
 168                     switch (LOWORD(wParam))
 169                     {
 170                         case IDOK:
 171                         case IDCANCEL:
 172                             EndDialog(hDlg, TRUE);
 173                             return TRUE;
 174                         case IDC_PREV:
 175                             // Show the previous device
 176                             if (iCurrent)
 177                                 iCurrent--;
 178                             SetInfoDlgText(hDlg, iCurrent, dwHost);
 179                             break;
 180                         case IDC_NEXT:
 181                             // Show the next device
 182                             if (iCurrent < g_iMaxDevices)
 183                                 iCurrent++;
 184                             SetInfoDlgText(hDlg, iCurrent, dwHost);
 185                             break;
 186                         case IDC_RADIO_HOST:
 187                         case IDC_RADIO_DEVICE:
 188                             if (dwHost == DDGDI_GETHOSTIDENTIFIER )
 189                                 dwHost = 0;
 190                             else
 191                                 dwHost = DDGDI_GETHOSTIDENTIFIER;
 192                             SetInfoDlgText(hDlg, iCurrent, dwHost);
 193                             break;
 194                     }
 195                     break;
 196             }
 197             break;
 198     }
 199
 200     return FALSE;
 201 }
 202
 203
 204
 205
 206 //-----------------------------------------------------------------------------
 207 // Name: DDEnumCallbackEx()
 208 // Desc: This callback gets the information for each device enumerated
 209 //-----------------------------------------------------------------------------
 210 BOOL WINAPI
 211 DDEnumCallbackEx(GUID *pGUID, LPSTR pDescription, LPSTR pName,
 212                  LPVOID pContext, HMONITOR hm)
 213 {
 214     LPDIRECTDRAW            pDD;            // DD1 interface, used to get DD4 interface
 215     LPDIRECTDRAW4           pDD4 = NULL;        // DirectDraw4 interface
 216     HRESULT                 hRet;
 217
 218     // Create the main DirectDraw object
 219     hRet = DirectDrawCreate(pGUID, &pDD, NULL);
 220     if (hRet != DD_OK)
 221     {
 222         InitFail("DirectDrawCreate FAILED");
 223         return DDENUMRET_CANCEL;
 224     }
 225
 226     // Fetch DirectDraw4 interface
 227     hRet = pDD->QueryInterface(IID_IDirectDraw4, (LPVOID *)&pDD4);
 228     if (hRet != DD_OK)
 229     {
 230         InitFail("QueryInterface FAILED");
 231         return DDENUMRET_CANCEL;
 232     }
 233
 234     // Get the device information and save it
 235     hRet = pDD4->GetDeviceIdentifier(&g_DeviceInfo[g_iMaxDevices].DeviceInfo,0);
 236     hRet = pDD4->GetDeviceIdentifier(&g_DeviceInfo[g_iMaxDevices].DeviceInfoHost,DDGDI_GETHOSTIDENTIFIER);
 237
 238     // Finished with the DirectDraw object, so release it
 239     if (pDD4)
 240         pDD4->Release();
 241
 242     // Bump to the next open slot or finish the callbacks if full
 243     if (g_iMaxDevices < MAX_DEVICES)
 244         g_iMaxDevices++;
 245     else
 246         return DDENUMRET_CANCEL;
 247     return DDENUMRET_OK;
 248 }
 249
 250
 251
 252
 253 //-----------------------------------------------------------------------------
 254 // Name: DDEnumCallback()
 255 // Desc: Old style callback retained for backwards compatibility
 256 //-----------------------------------------------------------------------------
 257 BOOL WINAPI
 258 DDEnumCallback(GUID *pGUID, LPSTR pDescription, LPSTR pName, LPVOID context)
 259 {
 260     return (DDEnumCallbackEx(pGUID, pDescription, pName, context, NULL));
 261 }
 262
 263
 264
 265
 266 //-----------------------------------------------------------------------------
 267 // Name: WinMain()
 268 // Desc: Entry point to the program. Initializes everything and calls
 269 //       DirectDrawEnumerateEx() to get all of the device info.
 270 //-----------------------------------------------------------------------------
 271 int PASCAL
 272 WinMain(HINSTANCE   hInstance,
 273         HINSTANCE   hPrevInstance,
 274         LPSTR       lpszCmdLine,
 275         int         nCmdShow)
 276 {
 277     LPDIRECTDRAWENUMERATEEX pDirectDrawEnumerateEx;
 278     HINSTANCE               hDDrawDLL;
 279
 280     // Do a GetModuleHandle and GetProcAddress in order to get the
 281     // DirectDrawEnumerateEx function
 282     hDDrawDLL = GetModuleHandle("DDRAW");
 283     if (!hDDrawDLL)
 284     {
 285         InitFail("LoadLibrary() FAILED");
 286         return -1;
 287     }
 288     pDirectDrawEnumerateEx = (LPDIRECTDRAWENUMERATEEX )GetProcAddress(hDDrawDLL,"DirectDrawEnumerateExA");
 289     if (pDirectDrawEnumerateEx)
 290     {
 291         pDirectDrawEnumerateEx(DDEnumCallbackEx, NULL,
 292                                 DDENUM_ATTACHEDSECONDARYDEVICES |
 293                                 DDENUM_DETACHEDSECONDARYDEVICES |
 294                                 DDENUM_NONDISPLAYDEVICES);
 295     }
 296     else
 297     {
 298         // Old DirectDraw, so do it the old way
 299         DirectDrawEnumerate(DDEnumCallback, NULL);
 300     }
 301
 302     if (0 == g_iMaxDevices)
 303     {
 304         InitFail("No devices to enumerate.");
 305         return -1;
 306     }
 307
 308     // Bring up the dialog to show all the devices
 309     DialogBox(hInstance, MAKEINTRESOURCE(IDD_DRIVERINFO), GetDesktopWindow(), (DLGPROC) InfoDlgProc);
 310
 311     return 0;
 312 }
 313
 314