# A3DSDK.h

Top-level header file of the HOOPS Exchange.

> 26.3

## Index

Preprocessor Definitions

- `A3D_DLL_MAJORVERSION`
- `A3D_DLL_MINORVERSION`
- `A3D_DLL_UPDATEVERSION`
- `A3D_DLL_NAME`
- `A3D_DLL_COPYRIGHT`
- `FALSE`
- `TRUE`
- `A3D_FALSE`
- `A3D_TRUE`
- `A3D_NULL_HANDLE`
- `HOOPS_EXCHANGE`
- `A3D_C_API_ATTRS`
- `A3D_C_API_CALL`
- `A3D_C_API_PTR`
- `A3D_C_EXTERN_PFN`
- `A3D_API`
- `A3D_MAX_BUFFER`

Preprocessor Definitions

`A3D_DLL_MAJORVERSION`

  Library Major version.

`A3D_DLL_MINORVERSION`

  Library Minor version.

`A3D_DLL_UPDATEVERSION`

  Library Update version.

`A3D_DLL_NAME`

  Name of the library.

`A3D_DLL_COPYRIGHT`

  Library copyright information.

`FALSE`

  Boolean standard false value.

`TRUE`

  Boolean standard true value.

`A3D_FALSE`

  Boolean standard false value.

`A3D_TRUE`

  Boolean standard true value.

`A3D_NULL_HANDLE`

  Non-valid object handle.

`HOOPS_EXCHANGE`

  Marks the product as using HOOPS Exchange.

`A3D_C_API_ATTRS`

  Function directives.

  Define these do that the clients use functions with the same calling conventions as the implementation.

  A3D_C_API_ATTRS - Before the return type in declarations. A3D_C_API_CALL - After the return type in declaration. A3D_C_API_PTR - Between the ‘(’ and ‘*’ in function pointer.

  Function declaration: A3D_C_API_ATTRS return_type A3D_C_API_CALL fname(params…); Function pointer: typedef void (A3D_C_API_PTR *PF_fname)(params…);

`A3D_C_API_CALL`

  Used to override calling convention.

`A3D_C_API_PTR`

  Function pointer calling convention override.

`A3D_C_EXTERN_PFN`

  Declares NAMEas a function pointer returning RETand with PARAMSas parameters.

`A3D_API`

  Declares NAMEas a function returning RETand with PARAMSas parameters.

  Expands to either a function declaration of a function pointer typedef according to platform

`A3D_MAX_BUFFER`

  Maximum length for character string.

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