Jimbauwens: Created page with "var.'''recall''' is a function that is part of the Var Library.
The function returns a the content of a math variable in the current document. It tries to return th..."

2011-06-01T12:19:53Z

Created page with "var.'''recall''' is a function that is part of the Var Library. The function returns a the content of a math variable in the current document. It tries to return th..."

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var.'''recall''' is a function that is part of the Var Library.

 

The function returns a the content of a math variable in the current document. It tries to return the value in a compatible Lua type. If there is no compatible type, it returns nil and an error message. 

== Syntax ==

var.'''recall(varname)''' returns the content of the variable varname (must be a string).

== Example ==

<source lang="lua">
function on.paint(gc)
variable = var.recall("sol") --assuming that sol exists
gc:drawString("The diameter of the sun is " .. tostring(variable) .. " KM", 10, 10, "top")
end
</source>

This code retrieves the content of the variable sol (number), and prints it on the screen.

== See also ==

*[[var.list]] 
*[[var.recallstr]] 
*[[var.store]] 
*[[var.monitor]] 
*[[var.unmonitor]] 

[[Category:var]]

var.recall - Revision history

Jimbauwens: Created page with "var.'''recall''' is a function that is part of the Var Library. The function returns a the content of a math variable in the current document. It tries to return th..."

Jimbauwens: Created page with "var.'''recall''' is a function that is part of the Var Library.
The function returns a the content of a math variable in the current document. It tries to return th..."