LTwain::GetDeviceEventData

float MyFix32ToFloat(TW_FIX32 * ptwFix) 
{ 
   float Floater = 0; 
   Floater = (float)ptwFix->Whole + (float)ptwFix->Frac / (float)65536.0; 
   return Floater; 
} 
 
L_INT LTwain__GetDeviceEventDataExample(LTwain * plTwain) 
{ 
   TW_DEVICEEVENT twDevice; 
   memset(&twDevice, 0, sizeof(TW_DEVICEEVENT)); 
   L_INT nRet = plTwain->GetDeviceEventData(&twDevice); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   L_TCHAR szBuffer[MAX_PATH]; 
   memset(szBuffer, 0, sizeof(szBuffer)); 
   wsprintf(szBuffer, TEXT("Event = %d\nEvent Name  =%s\n"), twDevice.Event, twDevice.DeviceName); 
   MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK); 
 
   if (twDevice.Event == TWDE_CHECKBATTERY) 
   { 
      wsprintf(szBuffer, TEXT("Battery Minutes = %d\nBattery Percentage = %d\n"), twDevice.BatteryMinutes, twDevice.BatteryPercentage); 
      MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK); 
   } 
   else if (twDevice.Event == TWDE_CHECKPOWERSUPPLY) 
   { 
      wsprintf(szBuffer, TEXT("Power Supply =%d\n"), twDevice.PowerSupply); 
      MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK); 
   } 
   else if (twDevice.Event == TWDE_CHECKRESOLUTION) 
   { 
      wsprintf(szBuffer, TEXT("XResolution = %f\nYResolution = %f\n"), MyFix32ToFloat(&twDevice.XResolution), MyFix32ToFloat(&twDevice.YResolution)); 
      MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK); 
   } 
   else if (twDevice.Event == TWDE_CHECKFLASH) 
   { 
      wsprintf(szBuffer, TEXT("FlashUsed2 =%d\n"), twDevice.FlashUsed2); 
      MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK); 
   } 
   else if (twDevice.Event == TWDE_CHECKAUTOMATICCAPTURE) 
   { 
      wsprintf(szBuffer, TEXT("Automatic Capture =%d\nTime Before First Capture =%d\nTime Between Captures = %d\n"), twDevice.AutomaticCapture, twDevice.TimeBeforeFirstCapture, twDevice.TimeBetweenCaptures); 
      MessageBox(NULL, szBuffer, TEXT("Notice!"), MB_OK); 
   } 
 
   return SUCCESS; 
}