QPointingDeviceUniqueId ¶

概要 ¶

详细描述 ¶

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.

This type actively prevents you from holding it in a QList , because doing so would be very inefficient. Use a QVector instead, which has the same API as QList , but more efficient storage.

另请参阅

TouchPoint

class QPointingDeviceUniqueId ¶

QPointingDeviceUniqueId(QPointingDeviceUniqueId)

param QPointingDeviceUniqueId

QPointingDeviceUniqueId

Constructs an invalid unique pointer ID.

static PySide2.QtGui.QPointingDeviceUniqueId. fromNumericId ( id ) ¶

参数

id – qint64

返回类型

QPointingDeviceUniqueId

Constructs a unique pointer ID from numeric ID id .

PySide2.QtGui.QPointingDeviceUniqueId. isValid ( ) ¶

返回类型

bool

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

PySide2.QtGui.QPointingDeviceUniqueId. numericId ( ) ¶

返回类型

qint64

PySide2.QtGui.QPointingDeviceUniqueId. __ne__ ( rhs ) ¶

参数

rhs – QPointingDeviceUniqueId

返回类型

bool

PySide2.QtGui.QPointingDeviceUniqueId. __eq__ ( rhs ) ¶

参数

rhs – QPointingDeviceUniqueId

返回类型

bool