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I am updating some projects to XE2 and I don’t understand why on some projects
uses jpeg;
is accepted
and in other i need to write
uses vcl.imaging.jpeg;
Could you explain me please?
The difference is down to the the unit scope names setting in the project options for your various projects.
If you have
Vcl.Imagingincluded in that setting then you don’t need to fully specify the unit scope. Typically, old projects that are upgraded from previous Delphi versions will haveVcl.Imagingincluded in the unit scope names setting. New projects do not.This is described in the documentation for Unit Scope Names.