/* class DisplaySettingsApplet for IE browsers uses J/Direct to enumerate
   all display modes of default display device.

					M. Gallant   11/14/2001 */

import java.awt.*;
import com.ms.security.*;
import com.ms.dll.DllLib;
import com.ms.win32.*;

public class DisplaySettingsApplet extends java.applet.Applet {
 StringBuffer strb = new StringBuffer(8192) ;   // 8 Kbyte buffer
 TextArea ta = new TextArea(25, 80) ;

  public void init() { 
   add(ta) ;
    try {
      if (Class.forName("com.ms.security.PolicyEngine") != null)  // get permissions
        PolicyEngine.assertPermission(PermissionID.SYSTEM);
          doDisplayEnum() ;
      } 
     catch (Throwable cnfe) {  }
   } 



private void doDisplayEnum() {
 String devicename = "";

 DEVMODE devmode = new DEVMODE() ;
 devmode.dmSize =(short) DllLib.sizeOf(DEVMODE.class);
 devmode.dmDriverExtra = 0;
 int mode=0;

ta.setText("----------------   Modes of Display Adapter  --------------------------\n\n") ;
 ta.append("Current Settings: \n") ;
 EnumDisplaySettings(null, win.ENUM_CURRENT_SETTINGS, devmode) ;     // get current display settings for default device
 devicename = devmode.dmDeviceName;
    ta.append("Device Name: " + devicename + "\n") ;
    ta.append( "  Width: " + devmode.dmPelsWidth + "   " + "Height: " + devmode.dmPelsHeight + "    " 
       + "Bits/pixel: " + devmode.dmBitsPerPel + "   " + "Frequency: " + devmode.dmDisplayFrequency + "\n\n") ;

ta.append("------------ Available Settings --------------------\n") ;
while (EnumDisplaySettings(null, mode, devmode)) {
  if(! devmode.dmDeviceName.equals(devicename)) {
    devicename = devmode.dmDeviceName ; 
    ta.append("\nDevice Name: " + devicename + "\n") ;
   }
    ta.append(mode + "  Width: " + devmode.dmPelsWidth + "   " + "Height: " + devmode.dmPelsHeight + "    " 
      + "Bits/pixel: " + devmode.dmBitsPerPel + "   " + "Frequency: " + devmode.dmDisplayFrequency + "\n") ;
   mode++;
 }

  }


 public void paint(Graphics g) {  // black border around applet panel
   g.setColor(Color.black) ;
   g.drawRect(0,0,this.getSize().width-1, this.getSize().height-1) ; 

  }

  /** @dll.import("USER32") */
  private static native boolean EnumDisplaySettings(String lpszDeviceName, int iModeNum,  DEVMODE lpDevMode) ;
}


/** @dll.struct() */
class DEVMODE {
        /** @dll.structmap([type=TCHAR[32]]) */
        public String   dmDeviceName;
        public short dmSpecVersion;
        public short dmDriverVersion;
        public short dmSize;
        public short dmDriverExtra;
        public int dmFields;
        public short dmOrientation;
        public short dmPaperSize;
        public short dmPaperLength;
        public short dmPaperWidth;
        public short dmScale;
        public short dmCopies;
        public short dmDefaultSource;
        public short dmPrintQuality;
        public short dmColor;
        public short dmDuplex;
        public short dmYResolution;
        public short dmTTOption;
        public short dmCollate;
        /** @dll.structmap([type=TCHAR[32]]) */
        public String   dmFormName;
        public short dmLogPixels;
        public int dmBitsPerPel;
        public int dmPelsWidth;
        public int dmPelsHeight;
        public int dmDisplayFlags;
        public int dmDisplayFrequency;
        public int dmICMMethod;
        public int dmICMIntent;
        public int dmMediaType;
        public int dmDitherType;
        public int dmICCManufacturer;
        public int dmICCModel;
        public int dmPanningWidth;
        public int dmPanningHeight;
}