Open32 provides functions that let programmers maintain application source code that is common between the OS/2 and Windows 32-bit programming platforms. Open32 functions are entry points to OS/2 functions that correspond to Windows 32-bit functions. The Windows and Open32 Differences section documents the Windows 32-bit and Open32 behavioral differences. Where appropriate, see the Windows 32-bit programming reference of your choice for the specific syntax and usage of these programming interfaces.