Find a free ID to be used as a resource name
Source position: resourcetree.pp line 65
public function TResourceTreeNode.FindFreeID(  | 
aType: TResourceDesc  | 
):TResID; virtual;  | 
aType  | 
  | 
The type of the resource  | 
A new resource ID
This method is used to find an available ID to be used as a name for a resource, given a resource type. It is used internally by AddAutoID method of TResources.
| Remark: | This method should only be called on root nodes (instances of TRootResTreeNode). | 
If there are no free ids left for the given resource type, an ENoMoreFreeIDsException is raised.