passing parameter in a register form through URL

IS it possible to preset register form in the url link ?

What should be then the spelling, if i want to preset a field value to 1 ( ex : [cb_titre]=1 )


Many thanks for your help

You want to set a fields value on registration based off the URL? Only way to do that is probably CB Auto Actions acting on the onBeforeRegisterFormDisplay trigger and modifying the user object.

What sort of modification should I try in the Condition to set it in fonction of the origine of the URL ?

Sorry, don't understand what you're asking. The below should work to set a default value for a field based off the URL.

Global
Triggers: onAfterinitFieldToDefault
Type: Code
User: Automatic
Access: Everybody
Conditions
1: [get_cb_titre] Equal To 1
Action
Method: PHP
Code: Parameters
References: Variable 2