open a 4.x score with MU3.7

• Sep 21, 2024 - 14:48

I'm trying to open a MU4.x score with the API and MU3.7:

      onRun: {
            var thisScore = readScore("D:\\Misc\\temp\\HelloMU3.mscz", false);
            console.log(thisScore.title);
            var thisScore = readScore("D:\\Misc\\temp\\HelloMU4.mscz", false);
            console.log(thisScore.title);
            }
      }

And it fails.
If I set the interactive flag to true, MU popups a warning that the score is a MU4.x score. If I click on Ignore, the score is processed as accepted.

If I set the interactive flag to false, the score is not opened.

So "interactive=false" ≡ "stop opening the score if any warning".

Is this the expected behaviour ?

How could I, in non-interactive mode, force the score opening despite the warning ?

Comments

• Sep 22, 2024 - 11:08

This is the culprit code:

      if (converterMode && canIgnore && ignoreWarnings) {
            fprintf(stderr, "%s\n\nWarning ignored, forcing score to load\n", qPrintable(msg));
            return true;
            }

ignoreWarnings gets set by -f, converterMode gets set by -o, ``canIgnore` gets checked for certain errors, file to old or to new or corrupt is setting it to true, criticall corrupted, not existent and some other to false

Reply

• Sep 23, 2024 - 10:04

It is working fine. I tested from both the command-line with the -f flag:

"D:\...\MuseScore3.exe" "D:\Misc\temp\HelloMU4.mscz" -f -o "D:\Misc\temp\HelloMU4.pdf"

And from the plugin Creator:

var thisScore = readScore("D:\\Misc\\temp\\HelloMU3.mscz",true);
console.log("MU3 interactive: "+thisScore.title);
if (thisScore!==null) closeScore(thisScore);

var thisScore = readScore("D:\\Misc\\temp\\HelloMU3.mscz",false);
console.log("MU3 non-interactive: "+thisScore.title);
if (thisScore!==null) closeScore(thisScore);


var thisScore = readScore("D:\\Misc\\temp\\HelloMU4.mscz", true);
console.log("MU4 interactive: "+thisScore.title);
if (thisScore!==null) closeScore(thisScore);

var thisScore = readScore("D:\\Misc\\temp\\HelloMU4.mscz",false);
console.log("MU4 non-interactive: "+thisScore.title);
if (thisScore!==null) closeScore(thisScore);

The only observation I would make, is that a MU4 score gets automatically a status "modified" and when closed by closeScore a popup "Save the change before closing ?" is shown.

Reply

• Sep 23, 2024 - 10:42
  1. The first variant should have worked before my change, that change (the 2nd commit) would cause
"D:\...\MuseScore3.exe" -f

not showing that dialog when opening any corrupt or wrong version scores, and not only in vonverter mode (i.e using the -o filename option.

  1. Is that gets automatically a status "modified" happening regardles of using true ot false?

Reply

• Sep 23, 2024 - 10:50

BTW: you seem to be using true and false the wrong way round, the variable is called noninteractive, so is supposed to be true if non-interactive and false if interactive
In that true case, non-interactive, it should not prompt for saving, and now also not ask for confirmation on load.
In the false case, interactive, it should to both, ask confirmation and ask for saving

Reply

• Sep 28, 2024 - 10:47

You can test with Batch Convert.
* Don't open any score
* Start Batch Convert, and selection the option "Import"
* Select a Folder where there is some MU4 file
* Check the option "Filter files with", and add some expression to limit to one MU4 file
* Click on "Preview"

As the code says thisScore = readScore(fileFullPath, true);, I expect the plugin to open and close the score without any further interaction. This is not the case.

On the contrary, if I change the code to thisScore = readScore(fileFullPath, false); the plugin doesn't prompt at the score opening, but does so at the file closure.

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