The following sample code will load 7 different Gerber layers and then draw them all on an image using the ConvertGerberLayersToImageEx method.
Dim myconverter As scConverterLib.Converter = New scConverterLib.Converter
myconverter.SetSerialNumber("Your Serial Number")
'Set black background color and add all layers
myconverter.BackgroundColor = 0
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/LAYER1.gbx", &HFF, 0)
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/LAYER2.gbx", &HFF00, 0)
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/LAYER3.gbx", &HFF0000, 0)
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/LAYER4.gbx", &HFF00FF, 0)
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/CMASK.gbx", &HFFFF00, 0)
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/SMASK.gbx", &HFFFF, 0)
myconverter.AddGerberLayer("http://www.gerbview.com/demo/gerbview/SILK.gbx", &HAA, 0)
'Create image with all layers
Dim mypicture As stdole.IPictureDisp = Nothing
myconverter.ConvertGerberLayersToImageEx(1.0, 24, 150, 0, mypicture)
Dim image As System.Drawing.Image = Nothing
image = image.FromHbitmap(mypicture.Handle, mypicture.hPal)
At this point you have an Image that can be used for display and/or saving.
E.g.:
PictureBox1.Image = image
or
image.Save("c:\temp\test.png")
A complete VB.Net sample can be downloaded here (VS2010):
http://www.softwarecompanions.no/dev/ConvertGerberLayersToImageExVB.zip
