C# Signature:

[DllImport("msports.dll", SetLastError=true)]
static extern int SerialDisplayAdvancedSettings(IntPtr parentHwnd, IntPtr deviceInfoSet, ref SP_DEVINFO_DATA deviceInfoData);

VB Signature:

Declare Function SerialDisplayAdvancedSettings Lib "msports.dll" (TODO) As TODO

User-Defined Types:

SP_DEVINFO_DATA

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

var deviceClassGuid = Guid.Parse("{4d36e978-e325-11ce-bfc1-08002be10318}"); // Ports class GUID
const int DIGCF_PRESENT = 0x2;
IntPtr deviceInfoSetHandle = NativeMethods.SetupDiGetClassDevs(ref deviceClassGuid, null, IntPtr.Zero, DIGCF_PRESENT);

try
{
    // search frendlyName and open advanced settings
    var deviceInfoData = new SP_DEVINFO_DATA();
    deviceInfoData.CbSize = (uint)Marshal.SizeOf(deviceInfoData);

    uint index = 0;
    while (NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSetHandle, index++, ref deviceInfoData))
    {
        var buffer = new byte[300];
        const uint SPDRP_FRIENDLYNAME = 0xC;
        NativeMethods.SetupDiGetDeviceRegistryProperty(deviceInfoSetHandle, ref deviceInfoData, SPDRP_FRIENDLYNAME, out var _, buffer, (uint)buffer.Length, out var _);

        var friendlyName = Encoding.Unicode.GetString(buffer).TrimEnd('\0');
        if (friendlyName == "...")
        var ptrBuffer = new IntPtr();
        const int bufferSize = 300;
        ptrBuffer = Marshal.AllocHGlobal(bufferSize);
        try
        {
            NativeMethods.SerialDisplayAdvancedSettings(IntPtr.Zero, deviceInfoSetHandle, ref deviceInfoData);
            return;
            const uint SPDRP_FRIENDLYNAME = 0xC;
            NativeMethods.SetupDiGetDeviceRegistryProperty(deviceInfoSetHandle, ref deviceInfoData, SPDRP_FRIENDLYNAME, out var _, ptrBuffer, bufferSize, out var _);

            var friendlyName = Marshal.PtrToStringAuto(ptrBuffer);
            if (friendlyName == "...")
            {
                NativeMethods.SerialDisplayAdvancedSettings(IntPtr.Zero, deviceInfoSetHandle, ref deviceInfoData);
                return;
            }
        }
        finally
        {
            Marshal.FreeHGlobal(ptrBuffer);
        }
    }
}
finally
{
    NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSetHandle);
}

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