Function

CGEventSourceSetUserData

Sets the 64-bit user-specified data for a Quartz event source.

Declaration

void CGEventSourceSetUserData(CGEventSourceRef source, int64_t userData);

Parameters

source

The event source to access.

userData

The user-specified data. For example, you could specify a vendor hardware ID.

Discussion

Each input event includes 64 bits of user-specified data. This function sets the user-specified data for all events created by the specified event source. This data may also be set per event using the CGEventSetIntegerValueField function.

See Also

Working With Event Sources

CGEventSourceGetTypeID

Returns the type identifier for the opaque type CGEventSourceRef.

CGEventSourceCreate

Returns a Quartz event source created with a specified source state.

CGEventSourceGetKeyboardType

Returns the keyboard type to be used with a Quartz event source.

CGEventSourceSetKeyboardType

Sets the keyboard type to be used with a Quartz event source.

CGEventSourceGetSourceStateID

Returns the source state associated with a Quartz event source.

CGEventSourceButtonState

Returns a Boolean value indicating the current button state of a Quartz event source.

CGEventSourceKeyState

Returns a Boolean value indicating the current keyboard state of a Quartz event source.

CGEventSourceFlagsState

Returns the current flags of a Quartz event source.

CGEventSourceSecondsSinceLastEventType

Returns the elapsed time since the last event for a Quartz event source.

CGEventSourceCounterForEventType

Returns a count of events of a given type seen since the window server started.

CGEventSourceGetUserData

Returns the 64-bit user-specified data for a Quartz event source.

CGEventSourceGetLocalEventsFilterDuringSuppressionState

Returns the mask that indicates which classes of local hardware events are enabled during event suppression.

CGEventSourceSetLocalEventsFilterDuringSuppressionState

Sets the mask that indicates which classes of local hardware events are enabled during event suppression.

CGEventSourceGetLocalEventsSuppressionInterval

Returns the interval that local hardware events may be suppressed following the posting of a Quartz event.

CGEventSourceSetLocalEventsSuppressionInterval

Sets the interval that local hardware events may be suppressed following the posting of a Quartz event.

CGEventSourceGetPixelsPerLine

Gets the scale of pixels per line in a scrolling event source.

CGEventSourceSetPixelsPerLine

Sets the scale of pixels per line in a scrolling event source.