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GetAttr.md

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NAME

GetAttr -- Inquire the value of some attribute of an object. (V36)

SYNOPSIS

    attr = GetAttr( AttrID, Object, StoragePtr )
    D0              D0      A0      A1

    ULONG GetAttr( ULONG, APTR, ULONG * );

FUNCTION

Inquires from the specified object the value of the specified attribute.

You always pass the address of a long variable, which will receive the same value that would be passed to SetAttrs() in the ti_Data portion of a TagItem element. See the documentation for the class for exceptions to this general rule.

Not all attributes will respond to this function. Those that will are documented on a class-by-class basis.

INPUTS

AttrID = the attribute tag ID understood by the object's class Object = abstract pointer to the boopsi object you are interested in StoragePtr = pointer to appropriate storage for the answer

RESULT Returns FALSE (0) if the inquiries of attribute are not provided by the object's class.

NOTES This function invokes the OM_GET method of the object.

BUGS

SEE ALSO

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