Online Help Changes for XE2

Go Up to What's New in Delphi and C++Builder XE2

Help Does Not Use Unit Scope Names Yet

RAD Studio now uses and includes unit-scoped unit names, so that a fully qualified name is, for example, System.SysUtils.BoolToStr instead of SysUtils.BoolToStr. However, the help—in particular the VCL-FMX-RTL Libraries documentation—does not yet include the unit scope names in the names of units, classes, and members.

This means that some functionality in the help might be temporarily unavailable; for example, F1 might invoke an incorrect help topic because the unit scope names are missing from the help. F1 issues can occur, for example, when a class name (such as TTreeView) is used in both FMX and VCL:

• Vcl.ComCtrls.TTreeView
• FMX.TreeView.TTreeView

Updating the libraries reference to include the unit scope names is planned for a help update.

For more information, see Unit Scope Names.

Docwikis Now Have Common Logins

A single login now frees you to move among the three wikis without being prompted to login on each wiki. The three wikis are:

• RAD Studio XE2 Topics Reference (the wiki that contains this topic)
• Code Examples XE2 Reference
• VCL-FMX-RTL Libraries XE2 Reference

VCL Reference Renamed to Libraries Reference

With the addition of the FireMonkey library (FMX), RAD Studio now contains three major libraries: VCL-FMX-RTL. Thus, the "VCL Reference" wiki and node of the help Contents is now called Libraries Reference, because it encompasses all three major libraries.

New Tutorials in the Help

Four new tutorials have been written:

• Tutorial: Using LiveBinding to Create an Application Without Code
• Tutorial: Using dbExpress Delegate Drivers
• Tutorial: Using LiveBinding Programatically
• Tutorial: Using LiveBinding in VCL Applications

Class Inheritance Diagrams

Class pages in the help now display class inheritance diagrams. For example, here is the class inheritance for Vcl.StdCtrls.TButton:

On the live Vcl.StdCtrls.TButton page, you can click the various nodes in the inheritance diagram to open the help page for that ancestor class.

Some Notable New Help Topics

• Floating-Point Rounding Issues describes common rounding issues (a customer request).
  • Using the Floating-Point Rounding Routines gives details about rounding mode in VCL and RTL functions.
  • SetRoundMode (Delphi) code example demonstrates how different rounding modes can affect results differently.

• Compiler Versions lists compiler versions and the vernnn conditional for each release (a customer request).
• Live Templates describes the code templates that exist in the product, how to use these templates, and how to create your own code templates using XML.
• Detailed Segments Map Option (C++) describes in detail how to generate and use a map file with the detailed segments option on.
• Topics have been added to describe how to integrate HTML help into RAD Studio applications.