PA_FindPackage

version 2003

PA_FindPackage (pluginID) → short

The routine PA_FindPackage returns the 4D internal number for the plug-in ID pluginID . If no plug-in has this ID, PA_FindPackage returns 0.

At startup, 4D launches every plug-in found in the 4DX folders (4D folder and the structure folder) and stores them in an array. The number returned is the position of the wanted plug-in in the array. This number will be useful in obtaining more plug-in information using the PA_PackageInfo function.

Several packages can have the same ID. The returned number is the number of the "first" one found by 4th Dimension.

Basically, this function is useful in checking if a 4D plug-in is present or not. DO NOT call this function during plug-in init event because the plug-in to check may be loaded after your plug-in, and in this case you will not see it. Call this function when needed in a function call.

This routine checks if 4D Write (using ID 12000) is installed or not.

 
   if ( 0 == PA_FindPackage( 12000 ) )
   {
      PA_Alert( "This plug-in needs 4D Write" );
      gPluginCanRun = false;
   }

PA_PackageInfo .