PDL_GetJSParamDouble

Description

Returns a parameter passed in a JavaScript invocation of a registered Plug-in handler function when the parameter is expected to be a double.

Handler functions serve as interfaces between a JavaScript app and a Plug-in app. See "JavaScript and Plug-in Interface" for more information on how this works.

Syntax

double PDL_GetJSParamDouble(PDL_JSParameters *params, int paramNum);     

Argument Description
params Parameters from which to extract data. This is passed to the handler function and should simply be passed on here. This type's internals are hidden from the user.
paramNum Number of parameter to extract (0 to n-1).

Returns

double parameter, or 0.0 if parameter does not exist.

See also:

  • PDL_RegisterJSHandler
  • PDL_JSRegistrationComplete
  • PDL_GetNumJSParams
  • PDL_GetJSParamString
  • PDL_GetJSParamInt
  • PDL_JSException
  • PDL_JSReply
  • PDL_CallJS