An upgrade path for ESP frontend applications

Author: Benoît GILON
Credits:

Requirements

What you should have on hand before trying to upgrade the applications are the following:

The ESP !Player application version 1.34 for playing sampled sound and MIDI files: the process will upgrade your application to version 1.34h;
The ESP !Realtime application v0.01: this is only a fix and the upgrade process won't change the release version number.

Greater conformity to Acorn protocol message based data exchange;
Greater performance in a Wimp environment, by not claiming null events while the application is idle and calling Wimp_PollIdle instead of WimpPoll while playing a sample/MIDI file and the main window being visible;
Application localization with the help from the ResFind BASIC module (from the German Acorn Group) with French resources added.
An Adjust-click on the main window's close icon, beyond closing the window, opens the current file (being played) directory Filer window.
A SHIFT-Adjust-click on the same icon has the same output as above but does NOT close the main !Player window.
!Player now supports the message protocol to communicate with interactive help applications running on the desktop too. Resource messages files have been updated (countries France and UK). !Player also supports the NIH system.

Change of the WimpPollMask: Now the application won't receive null_reason_codes, pointer_leaving_window and pointer_entering_window.
Application localization with the help from the ResFind BASIC module (from the German Acorn Group) with French resources added.