c# Programming Glossary: setupdigetclassdevs

How to pass a nullable type to a P/invoked function

http://stackoverflow.com/questions/1049623/how-to-pass-a-nullable-type-to-a-p-invoked-function

CharSet.Auto SetLastError true static extern IntPtr SetupDiGetClassDevs ref Guid ClassGuid int enumerator IntPtr hwndParent uint Flags.. nullable type. As it stands at the moment I can call it as SetupDiGetClassDevs ref tGuid null IntPtr.Zero uint SetupDiFlags.DIGCF_PRESENT but.. CharSet.Auto SetLastError true static extern IntPtr SetupDiGetClassDevs ref Guid ClassGuid ref int enumerator IntPtr hwndParent uint..

Win32 API function to programmatically enable/disable device

http://stackoverflow.com/questions/1438371/win32-api-function-to-programmatically-enable-disable-device

method is a PITA to work with. I have only used SetupDiGetClassDevs before and there are so many of them can someone with more experience.. namespace DisableDevice Flags internal enum SetupDiGetClassDevsFlags Default 1 Present 2 AllClasses 4 Profile 8 DeviceInterface.. true public static extern SafeDeviceInfoSetHandle SetupDiGetClassDevs In ref Guid classGuid MarshalAs UnmanagedType.LPWStr string..

How do I disable a system device programatically?

http://stackoverflow.com/questions/4097000/how-do-i-disable-a-system-device-programatically

setupapi.dll SetLastError true static extern IntPtr SetupDiGetClassDevsW In ref Guid ClassGuid MarshalAs UnmanagedType.LPWStr string.. IntPtr info IntPtr.Zero Guid NullGuid Guid.Empty try info SetupDiGetClassDevsW ref NullGuid null IntPtr.Zero DIGCF_ALLCLASSES CheckError.. NullGuid null IntPtr.Zero DIGCF_ALLCLASSES CheckError SetupDiGetClassDevs SP_DEVINFO_DATA devdata new SP_DEVINFO_DATA devdata.cbSize..