A number of new functions have been added to Presentation Manager under OS/2 Version 2.0. While these functions do not add new capabilities to the Presentation Manager interface, they simplify application development by combining operations that previously required multiple steps into a single Presentation Manager function call.
Table "New Presentation Manager Functions in OS/2 Version 2.0"
A number of other functions are also added in OS/2 Version 2.0, and are used to deal with the passing of messages between 16-bit and 32-bit modules in Presentation Manager applications. These functions are discussed in Mixing 16-Bit and 32-Bit Application Modules.
These functions are described in more detail in the IBM OS/2 Version 2.0 Presentation Manager Reference.