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Forum: General Discussion

Topic: Persistent variables

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Is there a way to keep a variable's value even after you exit the application? How does VDJ remember my last picked Font size?
 
Posted Tue 11 Dec 12 @ 12:03 pm
VirtualDJ has no way currently to save any variables. However it can save the selected panel from a group. So if you have multiple panels as browsers with different font selected, it will save the last one selected when exit.
 
Thanks for the quick response. Leveraging on the fact that VDJ remembers the last panel used, could I then assign a static value to my variable when VDJ loads and selects the last selected panel? For example:

<panel id="panel_A" group="grp_test" visible="true & set 'myvar' 1">
...
</panel>

<panel id="panel_B" group="grp_test" visible="false & set 'myvar' 0">
...
</panel>

I tried adding [set 'myvar' 1] within in the visible element of a panel but I could not make it work, could something around that idea work?
 
No but you can rebuild the variables ONINIT or even requery the panels when you need:

ONINIT action="skin_panel 'panel_A' on ? set 'myvar' 1 : skin_panel 'panel_B' on ? set 'myvar' 0"


Or you can alter your button's code to query the visibility of the panels:

Original code:
var_equal 'myvar' 1 ? play : var_equal 'myvar' 0 ? pause

Alternative code:
skin_panel 'panel_A' on ? play : skin_panel 'panel_B' on ? pause
 
ahhhhhh, ahhhhh, looks extremely interesting. I'll play with that when I get home. Many thanks for the pointers... :)
 
:( unfortunately this did not work, apparently when the INIT function runs, the SKIN PANEL command returns the VISIBLE panel no matter which Panel was last used. I would have to assume that VDJ switches to the last used panel after INIT runs.


<INIT action="skin_panel 'font_size5' on ? toggle '$myvar' " />
 
In order panels to load exactly the way you left them when you closed vdj, they need only to have visible="yes/no"
The init action should hten be like..
skin_panel 'a' on ? set 'var' 1 : skin_panel 'b' on ? set 'var' 2 ...etc

If you need the panels to define a var while using the skin, you need to also set the var with the buttons that change the panels ..like..
button action="skin_panel 'a' on & set 'var' 1"

If you add a query in the visible instead of just true/false, then once vdj loads it will display the panel that the visible returns true after the query
 
right, the part when VDJ loads the last used panel works fine; but what I'm saying is this:

<panel id="panel_A" group="set1" visible="yes">
...
</panel>
<panel id="panel_B" group="set1" visible="no">
...
</panel>

<INIT action="skin_panel 'panel_B' on ? toggle '$myvar' " />

*** when exit VDJ, the last active panel is "panel_B"

but when I open VDJ and the INIT runs, it always returns "panel_A" as the active panel, in other words, the query "skin_panel 'panel_B' on ?" will always return FALSE even if the last used panel was "panel_B". However, after the skin fully loads, the correct "panel_B" does load.

That's why I said that it seems like INIT runs even before VDJ has a chance to decide which panel to use.
 


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