The base object of RGtk2
RGtkObject identifies an external object as being owned by RGtk.
Practically, it allows convenience operators to be specified for any external object.
## S3 method for class 'RGtkObject' x[[field, where = parent.frame()]] ## S3 method for class 'RGtkObject' x$member ## S3 method for class 'RGtkObject' x == y
x |
The |
field |
The name of the field whose value will be retrieved |
member |
The name of the member (eg method) that will be retrieved |
y |
The right hand operand of a comparison |
where |
The environment in which to look for the field accessor function |
The functions [[.RGtkObject and $.RGtkObject both expand to an
RGtk function that accesses external objects. The [[ operator
looks for a field from an external C structure
by expanding objectOfClassName[[fieldName]] to classNameGetFieldName().
External "methods" are expanded by the $ operator to form
classNameMethodName(objectOfClassName, ...) from the Java-like
objectOfClassName$methodName(...). The long and short mechanisms give
the same result, but the shortcut is obviously more convenient. If the method
does not exist, $ will fall back to other types of members, like
properties (for GObjects) and fields.
The == operator compares two RGtkObjects on the basis of their internal pointer value.
This should rarely be useful for users.
A context-dependent value resulting from the specified API call.
Michael Lawrence
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.