C# Signature:

[DllImport("winspool.Drv", EntryPoint = "DocumentPropertiesW", SetLastError = true,
         ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
static extern int DocumentProperties(IntPtr hwnd, IntPtr hPrinter,
        [MarshalAs(UnmanagedType.LPWStr)] string pDeviceName,
        IntPtr pDevModeOutput, ref IntPtr pDevModeInput, int fMode);

VB Signature:

Declare Function DocumentProperties Lib "winspool.dll" (TODO) As TODO

User-Defined Types:

None.

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

Doesn't work on a x64 system. (i.e. this declaration is wrong for x64, I'm just not quite sure why.). MH:I tested the code extensivly and I think the param "IntPtr pDevModeInput" must not have the "ref" flag. If it has the initial state of the dialog is wrong

Tips & Tricks:

Please add some!

Sample Code:

private void OpenPrinterPropertiesDialog(PrinterSettings printerSettings)
    {
        IntPtr hDevMode = printerSettings.GetHdevmode(printerSettings.DefaultPageSettings);
        IntPtr pDevMode = GlobalLock(hDevMode);
        int sizeNeeded = DocumentProperties(this.Handle, IntPtr.Zero, printerSettings.PrinterName, pDevMode, ref pDevMode, 0);
        IntPtr devModeData = Marshal.AllocHGlobal(sizeNeeded);
        DocumentProperties(this.Handle, IntPtr.Zero, printerSettings.PrinterName, devModeData, ref pDevMode, 14);
        GlobalUnlock(hDevMode);
        printerSettings.SetHdevmode(devModeData);
        printerSettings.DefaultPageSettings.SetHdevmode(devModeData);
        GlobalFree(hDevMode);
        Marshal.FreeHGlobal(devModeData);
    }

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