PrintDialog.ShowDialog(this) immediately returns DialogResult.Cancel on Windows 7

Question

An in house application that I'm developing is behaving strange on a Windows 7 (64 bit) PC.

If I create an instance of a PrintDialog, and call it's ShowDialog() method, the method immediately returns DialogResult.Cancel without showing the printer dialog form.

The Windows 7 PC does have printers installed (with a working default printer).

        PrintDialog printDialog = new PrintDialog();
        printDialog.PrinterSettings.Copies = 2;
        printDialog.AllowCurrentPage = false;
        printDialog.AllowPrintToFile = false;
        printDialog.AllowSelection = false;
        printDialog.AllowSomePages = false;
        DialogResult dialogResult = printDialog.ShowDialog(this);
        if (dialogResult == DialogResult.Cancel)
            return;

Any clues why this is happening?

Answer 1

Set UseEXDialog to true to work around this bug.

Answer 2

Thank you, that worked