FMSLogo Code

Add a regression test for bug #2500256, which is that SCROLLBARSET has bad error recovery logic if the max value is less than the min value.

Fix a bug where the "general MIDI" error didn't display the error-specific string to the user.

Fix a bug where the status code wasn't being propagated from gifsave_helper().

Fix bug #1475214; MIDIOPEN no longer opens MIDI mapper when given bad input.

Fix bug #1475223; MIDI procedures now throw MIDI-specific errors and no longer display dialog boxes.

Fix bug #1500676; Windowing procedures now throw windowing-specific errors and no longer display dialog boxes.

I added two new errors, one for "WINDOW already exists" and one for "WINDOW does not exist". I could have gone with more specific errors, such as "No scrollbar named NAME exists", but this would have created extra work for the localizers without much benefit to the user. If someone complains, I'll add more specific error messages.

Fix bug #1500676; Windowing procedures now throw windowing-specific errors and no longer display dialog boxes.

I added two new errors, one for "WINDOW already exists" and one for "WINDOW does not exist". I could have gone with more specific errors, such as "No scrollbar named NAME exists", but this would have created extra work for the localizers without much benefit to the user. If someone complains, I'll add more specific error messages.

Fix bug #1500676; Windowing procedures now throw windowing-specific errors and no longer display dialog boxes.

I added two new errors, one for "WINDOW already exists" and one for "WINDOW does not exist". I could have gone with more specific errors, such as "No scrollbar named NAME exists", but this would have created extra work for the localizers without much benefit to the user. If someone complains, I'll add more specific error messages.

Make it so that SETACTIVEAREA complains about the entire list when the range is invalid, instead of specific members of the list. This is more consistent with how other Logo procedures behave.

Make the bad input tests expect specific errors to be thrown, rather than accepting any error.