IInkTablet interface (msinkaut.h)

Represents the digitizer device of Tablet PC that receives tablet device messages or events.


The IInkTablet interface inherits from the IUnknown interface. IInkTablet also has these types of members:


The IInkTablet interface has these methods.


Gets a bitmask that defines the hardware capabilities of the tablet, such as whether a cursor must be in physical contact with the tablet to report its position.

Gets the maximum input rectangle, in tablet device coordinates that the IInkTablet object supports.

Gets the name of the object. (IInkTablet.get_Name)

Gets a string representation of the Plug and Play identifier of the IInkTablet object.

Retrieves the metrics data for a specified property.

Determines whether a property of a tablet device or a collection of tablet devices, identified with a globally unique identifier (GUID), is supported. (IInkTablet.IsPacketPropertySupported)


You can use the IInkTablet object to determine the hardware capabilities of the tablet device. A Tablet PC may have more than one digitizer attached in addition to the built-in digitizer.

IInkTablet objects work closely with ink collector objects. An ink collector (InkCollector, InkOverlay, or InkPicture) can be set to one of two tablet-related modes:

  • All tablets mode
  • Single tablet integrated mode
The default mode is all tablets mode (set with the SetAllTabletsMode method of the ink collector). This mode integrates all tablet devices if multiple devices are attached to the Tablet PC. Because all of the tablets are integrated, available cursors can be used on any of the tablet devices, and each tablet maps to the entire screen. This allows automatic updating of the windows.

If you define a class that implements this interface, the new class will not interact correctly with the Tablet PC application programming interfaces (APIs).


Minimum supported client Windows XP Tablet PC Edition [desktop apps only]
Minimum supported server None supported
Target Platform Windows
Header msinkaut.h

See also

IInkCursor Interface

InkCollector Class

InkOverlay Class

InkPicture Control Reference