Function

IOHIDValueGetLength

Returns the size, in bytes, of the value contained in this IOHIDValueRef.

Declaration

CFIndex IOHIDValueGetLength(IOHIDValueRef value);

Parameters

value: The value to be queried. If this parameter is not a valid IOHIDValueRef, the behavior is undefined.

Return Value

Returns length of the value.

See Also

Miscellaneous

IOHIDValueCreateWithBytes

Creates a new element value using byte data.

IOHIDValueCreateWithBytesNoCopy

Creates a new element value using byte data without performing a copy.

IOHIDValueCreateWithIntegerValue

Creates a new element value using an integer value.

IOHIDValueGetBytePtr

Returns a byte pointer to the value contained in this IOHIDValueRef.

IOHIDValueGetElement

Returns the element value associated with this IOHIDValueRef.

IOHIDValueGetIntegerValue

Returns an integer representaion of the value contained in this IOHIDValueRef.

IOHIDValueGetScaledValue

Returns an scaled representaion of the value contained in this IOHIDValueRef based on the scale type.

IOHIDValueGetTimeStamp

Returns the timestamp value contained in this IOHIDValueRef.

IOHIDValueGetTypeID

Returns the type identifier of all IOHIDValue instances.