Selecting custom pixels

[anatolyl7200897]

I have binary mask image. What the most convenient way to make selection with form of this mask?

[r-bin]

If I understood correctly, then you can make a selection from the mask like this

app.activeDocument.selection.deselect();

app.runMenuItem(stringIDToTypeID("addUserMaskToSelection"));

[anatolyl7200897]

This works but there is also a step which i make with hands (Layer Mask > From Transparence). How do i made it in script?

[r-bin]

selection_from_channel("Trsp");

//selection_from_channel("Msk ");

function selection_from_channel(ch_name)

    {

    try {

        var d = new ActionDescriptor();

        var r1 = new ActionReference();

        var r2 = new ActionReference();

        r1.putProperty( charIDToTypeID( "Chnl" ), charIDToTypeID( "fsel" ) );

        r2.putEnumerated( charIDToTypeID( "Chnl" ), charIDToTypeID( "Chnl" ), charIDToTypeID( ch_name ) );

        d.putReference( charIDToTypeID( "null" ), r1 );

        d.putReference( charIDToTypeID( "T   " ), r2 );

        executeAction( charIDToTypeID( "setd" ), d, DialogModes.NO );

        }

    catch(e) { alert(e);}

    }

Also can use 4-chars names

"RGB "

"Rd  "

"Grn "

"Bl  "

"Lab "

"Lght"

"A   "

"B   "

"CMYK"

"Cyn "

"Mgnt"

"Yllw"

"Blck"