DWG to PDF Error SetWindowToPlot method : Using COM and C++

Hi All,

I'm trying to create PDF from DWG file, also implemented all
functionalities by using COM.

I've created an Instance of AutoCAD and opened a DWG file. From the
instance i'm getting active layout. But i'm facing some problem in
using "SetWindowToPlot" method. It doesn't do as i expected. But the
same time, I can plot a DWG by view, Layout and extend methods. Here
are more details :

After setting all the properties I could not plot the select window
coordinates using SetWindowToPlot (const _variant_t & LowerLeft, const
_variant_t & UpperRight );

Code snippet:

layout->RefreshPlotDeviceInfo();
layout->StandardScale =acScaleToFit;
layout->PlotRotation = ac90degrees;
layout->PlotType = acWindow;

layout->ConfigName = ("Distiller123.pc3");

// setting the co-ordinates binding the double values of Lower left and
upper right corners co-ordinates in //Using SafeArrayBound, VARIANT
type with double values.

layout->SetWindowToPlot(_variant_t(filterType),_variant_t(filterType2));

document->Plot->PlotToDevice(plotConfigName.AllocSysString());

Your help is highly appreciated.

Thanks,
Meena
meenaisusATyahoo.co.in