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# XPRMgetnextdsoparam

Purpose
Get the next control parameter in the list of the given module.
Synopsis
`void *XPRMgetnextdsoparam(XPRMdsolib dso, void *ref, const char **name, const char **desc, int *type);`
Arguments

dso | Reference to a dynamic shared object loaded by Mosel or NULL
ref | Reference pointer or NULL
name | Returned name of the control parameter
desc | Returned description of the control parameter
type | Returned type of the control parameter

Return value
Reference pointer for the next call to XPRMgetnextdsoparam.
Further information
This function returns the next control parameter of the given module. If the argument dso is NULL, the function returns Mosel control parameters. The second parameter is used to store the current location in the table of control parameters; if this parameter is NULL, the first control parameter of the table is returned. This function returns NULL if it is called with the reference to the last parameter of the given module. Otherwise, the returned value can be used as the input parameter ref to get the following control parameter and so on. The type can be decoded using the macro XPRM_TYP. Moreover, the bits XPRM_CPAR_READ and XPRM_CPAR_WRITE are set to indicate if the parameter can be read or written respectively (using getparam and setparam). The parameter desc is a textual description of the function of the parameter — this information is not necessarily available (that is, it may be NULL or an empty string). Note that not all modules implement the required functionality for enumerating control parameters.
Related topics
XPRMgetnextdsoconst, XPRMgetnextdsoproc, XPRMgetnextdsotype XPRMgetnextiodrv.
Parent Topic Handling of modules

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