Vips.Argument

Fields

Name	Type	Access	Description
pspec	GObject.ParamSpec	r/w

Methods

class

map (object, fn, a, b)

Details

class Vips.Argument

libvips has a simple mechanism for automating at least some aspects of [class`GObject`.Object] properties. You add a set of macros to your _class_init() which describe the arguments, and set the get and set functions to the libvips ones.

See extending for a complete example.

classmethod map(object, fn, a, b)

Parameters:

• object (Vips.Object) – object whose args should be enumerated

• fn (Vips.ArgumentMapFn) – call this function for every argument

• a (object or None) – client data

• b (object or None) – client data

Returns:

NULL if fn returns NULL for all arguments, otherwise the first non-NULL value from fn.

Return type:

object or None

Loop over the [struct`Argument`] of an object. Stop when fn returns non-NULL and return that value.