Function os_config_write_uint

legacy/D3Launch/OS_Config.cpp:229–276

Writes an uint32_t to the INI file.

// Writes an uint32_t to the INI file.
void os_config_write_uint(char *section, char *name, uint32_t value) {
  HKEY hKey = NULL;
  DWORD dwDisposition;
  char keyname[1024];
  LONG lResult;

  if (section) {
    sprintf(keyname, "Software\\%s\\%s\\%s", szCompanyName, szAppName, section);
  } else {
    sprintf(keyname, "Software\\%s\\%s", szCompanyName, szAppName);
  }

  lResult = RegCreateKeyEx(HKEY_LOCAL_MACHINE,      // Where to add it
                           keyname,                 // name of key
                           NULL,                    // DWORD reserved
                           "",                      // Object class
                           REG_OPTION_NON_VOLATILE, // Save to disk
                           KEY_ALL_ACCESS,          // Allows all changes
                           NULL,                    // Default security attributes
                           &hKey,                   // Location to store key
                           &dwDisposition);         // Location to store status of key

  if (lResult != ERROR_SUCCESS) {
    // mprintf( "Error opening registry key '%s'\n", keyname );
    goto Cleanup;
  }

  if (!name) {
    // mprintf( "No variable name passed\n" );
    goto Cleanup;
  }

  lResult = RegSetValueEx(hKey,                 // Handle to key
                          name,                 // The values name
                          NULL,                 // DWORD reserved
                          REG_DWORD,            // null terminated string
                          (CONST BYTE *)&value, // value to set
                          4);                   // How many bytes to set

  if (lResult != ERROR_SUCCESS) {
    // mprintf( "Error writing registry key '%s'\n", name );
    goto Cleanup;
  }

Cleanup:
  if (hKey)
    RegCloseKey(hKey);
}

// Reads a string from the INI file.  If default is passed,
// and the string isn't found, returns ptr to default otherwise