C# Class Mirror.UsbLibrary.Win32Usb

Class that wraps USB API calls and structures.

Public Properties

Property	Type	Description
NullHandle	System.IntPtr

Protected Properties

Property	Type	Description
InvalidHandleValue	System.IntPtr

Public Methods

Method	Description
RegisterForUsbEvents ( IntPtr hWnd, System.Guid gClass ) : IntPtr	Registers a window to receive windows messages when a device is inserted/removed. Need to call this from a form when its handle has been created, not in the form constructor. Use form's OnHandleCreated override.
UnregisterForUsbEvents ( IntPtr hHandle ) : bool	Unregisters notifications. Can be used in form dispose

Private Methods

Method	Description
CloseHandle ( IntPtr hFile ) : int
CreateFile ( [ strName, uint nAccess, uint nShareMode, IntPtr lpSecurity, uint nCreationFlags, uint nAttributes, IntPtr lpTemplate ) : IntPtr
HidD_FreePreparsedData ( IntPtr &pData ) : bool
HidD_GetHidGuid ( System.Guid &gHid ) : void
HidD_GetPreparsedData ( IntPtr hFile, IntPtr &lpData ) : bool
HidP_GetCaps ( IntPtr lpData, HidCaps &oCaps ) : int
RegisterDeviceNotification ( IntPtr hwnd, DeviceBroadcastInterface oInterface, uint nFlags ) : IntPtr
SetupDiDestroyDeviceInfoList ( IntPtr lpInfoSet ) : int
SetupDiEnumDeviceInterfaces ( IntPtr lpDeviceInfoSet, uint nDeviceInfoData, System.Guid &gClass, uint nIndex, DeviceInterfaceData &oInterfaceData ) : bool
SetupDiGetClassDevs ( System.Guid &gClass, [ strEnumerator, IntPtr hParent, uint nFlags ) : IntPtr
SetupDiGetDeviceInterfaceDetail ( IntPtr lpDeviceInfoSet, DeviceInterfaceData &oInterfaceData, DeviceInterfaceDetailData &oDetailData, uint nDeviceInterfaceDetailDataSize, uint &nRequiredSize, IntPtr lpDeviceInfoData ) : bool
SetupDiGetDeviceInterfaceDetail ( IntPtr lpDeviceInfoSet, DeviceInterfaceData &oInterfaceData, IntPtr lpDeviceInterfaceDetailData, uint nDeviceInterfaceDetailDataSize, uint &nRequiredSize, IntPtr lpDeviceInfoData ) : bool
UnregisterDeviceNotification ( IntPtr hHandle ) : bool

Method Details

RegisterForUsbEvents() public static method

Registers a window to receive windows messages when a device is inserted/removed. Need to call this from a form when its handle has been created, not in the form constructor. Use form's OnHandleCreated override.

public static RegisterForUsbEvents ( IntPtr hWnd, System.Guid gClass ) : IntPtr
hWnd	System.IntPtr	Handle to window that will receive messages
gClass	System.Guid	Class of devices to get messages for
return	System.IntPtr

UnregisterForUsbEvents() public static method

Unregisters notifications. Can be used in form dispose

public static UnregisterForUsbEvents ( IntPtr hHandle ) : bool
hHandle	System.IntPtr	Handle returned from RegisterForUSBEvents
return	bool

Property Details

InvalidHandleValue protected_oe static_oe property

Simple representation of the handle returned when CreateFile fails.

protected static IntPtr,System InvalidHandleValue
return	System.IntPtr

NullHandle public_oe static_oe property

Simple representation of a null handle : a closed stream will get this handle. Note it is public for comparison by higher level classes.

public static IntPtr,System NullHandle
return	System.IntPtr