public PresentationSpace GetPresentationSpace( )
{
Ehllapier.Wait(mActiveSessId);
var ps = Ehllapier.GetPresentationSpace(this);
return(ps);
}
public static PresentationSpace GetPresentationSpace(DisplaySession Sess)
{
PresentationSpace ps = null;
byte[] charBuf = null;
int bufSx = 0;
// get display characters and char attributes.
while (true)
{
Ehllapier.SetSessionParameters("ATTRB,EAB,NOXLATE");
bufSx = (Sess.Dim.Width * Sess.Dim.Height) * 2;
charBuf = CopyPresentationSpace(bufSx);
// presentation space contains nulls.
if ((charBuf[0] == 0x20) && (charBuf[1] == 0x00))
{
Thread.Sleep(1);
continue;
}
// got some valid data
break;
}
// get the color attributes of presentation space characters.
Ehllapier.SetSessionParameters("ATTRB,EAB,XLATE");
byte[] colorBuf = CopyPresentationSpace(bufSx);
var lowPs = new LowPresentationSpace(Sess, charBuf, colorBuf, 2);
ps = new PresentationSpace(lowPs);
return(ps);
}
public void Disconnect()
{
if (mActiveSessId == null)
{
throw new EhllapiExcp("display session is not active");
}
Ehllapier.Disconnect(mActiveSessId);
mActiveSessId = null;
}
public void Wait()
{
Ehllapier.Wait(mActiveSessId);
// ehllapi wait for host is sometimes not good enough. the new screen
// from the host may not have arrived yet at the display. Use a dummy
// read of the presentation space to make sure there is not
// "wait for host response" going on. ( see CopyPresentationSpaceToString
// in the Ehllapier class. )
GetPresentationSpace();
}
public OperatorInfoArea GetOperatorInfoArea()
{
ThrowSessionNotActive("GetShiftState failed.");
byte[] oiaBytes = Ehllapier.GetOiaBytes(mActiveSessId);
return(new OperatorInfoArea(oiaBytes));
}
public string CopyPresentationSpaceToString()
{
string psData = Ehllapier.CopyPresentationSpaceToString(mActiveSessId);
return(psData);
}
public string Copy_OIA()
{
string psData = Ehllapier.Copy_OIA(mActiveSessId);
return(psData);
}
public void Connect(string SessId)
{
Ehllapier.Connect(SessId);
mActiveSessId = SessId;
mDim = new PresentationSpaceDim(24, 80);
}
public void SendKeys(KeyboardKey Key)
{
Ehllapier.Wait(mActiveSessId);
Ehllapier.SendKeys(mActiveSessId, Key.KeyText);
}
public void SendKeys(string InKeys)
{
Ehllapier.Wait(mActiveSessId);
Ehllapier.SendKeys(mActiveSessId, InKeys);
}
