DoGadgetMethodA

Invoke method on a boopsi gadget. (V39)

DoGadgetMethod

Varargs stub for DoGadgetMethodA(). (V39)

Same as the DoMethod() function of amiga.lib, but provides context information and arbitration for classes which implement custom Intuition gadgets.

You should use this function for boopsi gadget objects, or for "models" which propagate information to gadgets.

Unlike DoMethod(), this function provides a GadgetInfo pointer (if possible) when invoking the method. Some classes may require or benefit from this.

Gadget

abstract pointer to a boopsi gadget

Window

window gadget has been added to using AddGList() or AddGadget()

Requester

for REQGADGETs, requester containing the gadget

Msg

the boopsi message to send

The object does whatever it wants with the message you sent, which might include updating its gadget visuals.

The return value is defined per-method.

This function invokes the specified method with a GadgetInfo derived from the 'Window' and 'Requester' pointers. The GadgetInfo is passed as the second parameter of the message, except for OM_NEW, OM_SET, OM_NOTIFY, and OM_UPDATE, where the GadgetInfo is passed as the third parameter.

Implementers of new gadget methods should ensure that the GadgetInfo is the second long-word of their message!

NewObject(), DisposeObject(), GetAttr(), MakeClass(), Document "Basic Object-Oriented Programming System for Intuition" and the "boopsi Class Reference" document.