class QPointingDeviceUniqueId

QPointingDeviceUniqueId identifies a unique object, such as a tagged token or stylus, which is used with a pointing device. More…

Synopsis

Properties

  • numericIdᅟ - The numeric unique ID of the token represented by a touchpoint

Methods

Static functions

Note

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Detailed Description

QPointingDeviceUniqueIds can be compared for equality, and can be used as keys in a QHash. You get access to the numerical ID via numericId() , if the device supports such IDs. For future extensions, though, you should not use that function, but compare objects of this type using the equality operator.

This class is a thin wrapper around an integer ID. You pass it into and out of functions by value.

See also

QEventPoint

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property numericIdᅟ: int

This property holds the numeric unique ID of the token represented by a touchpoint.

If the device provides a numeric ID, isValid() returns true, and this property provides the numeric ID; otherwise it is -1.

You should not use the value of this property in portable code, but instead rely on equality to identify pointers.

See also

isValid()

Access functions:
__init__()

Constructs an invalid unique pointer ID.

static fromNumericId(id)
Parameters:

id – int

Return type:

QPointingDeviceUniqueId

Constructs a unique pointer ID from numeric ID id.

isValid()
Return type:

bool

Returns whether this unique pointer ID is valid, that is, it represents an actual pointer.

numericId()
Return type:

int

Getter of property numericIdᅟ .

__ne__(rhs)
Parameters:

rhs – QPointingDeviceUniqueId

Return type:

bool

Returns whether the two unique pointer IDs lhs and rhs identify different pointers (true) or not (false).

__eq__(rhs)
Parameters:

rhs – QPointingDeviceUniqueId

Return type:

bool

Returns whether the two unique pointer IDs lhs and rhs identify the same pointer (true) or not (false).