The Information Catalog Manager provides a header file, DG2API.H that defines the function prototypes of API calls, constants, and data types required for C language applications that use the Information Catalog Manager API calls.
DG2API.H is installed in the VWSLIB\LIB directory on the drive where you installed the Information Catalog Manager.
To use the definition types defined in DG2API.H with the Information Catalog Manager for Windows, you need to include in your program the WINDOWS.H header file included with Microsoft Visual C++ Compiler.