For a smart device application created with VB.NET 2003, I get the error

An unhandled exception of type 'System.NotSupportedException' occurred in System.Windows.Forms.dll
Additional information: NotSupportedException

for the following line of code where signaturebox is a windows.forms.picturebox

SignatureBox.CreateGraphics.DrawLine(penBlack, OldX, OldY, e.X, e.Y)

Is CreateGraphics not supported? Will it be supported? And if not, is there a workaround I can use to capture a signature? I would prefer a method that does not have to store the signature as an image or bitmap. Thanks for the help.