Format of IDL X Resources
IDL resource strings begin with the characters "Idl". While most of the resources that were used by IDL versions earlier than IDL 6.2 have been superseded by preferences in the IDL preference system, some X resources are still used. For example, the resource
is used to define the width of the file selection dialog displayed by the DIALOG_PICKFILE function.
To specify a value for an X resource, append a colon character and the value after the resource string. Whitespace is ignored. For example:
is the same as
