The following functions return the values of certain system variables. Note that these values should be considered READ-ONLY.

IDL_STRING *IDL_SysvVersionArch(void)

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This function returns a pointer to the !VERSION.ARCH system variable.

IDL_STRING *IDL_SysvVersionOS(void)

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This function returns a pointer to the !VERSION.OS system variable.

IDL_STRING *IDL_SysvVersionOSFamily(void)

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This function returns a pointer to the !VERSION.OS_FAMILY system variable.

IDL_STRING *IDL_SysvVersionRelease(void)

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This function returns a pointer to the !VERSION.RELEASE system variable.

IDL_STRING *IDL_SysvDirFunc(void)

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This function returns a pointer to the !DIR system variable.

IDL_STRING *IDL_SysvErrStringFunc(void)

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This function returns a pointer to the !ERROR_STATE.MSG system variable.

IDL_STRING *IDL_SysvSyserrStringFunc(void)

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This function returns a pointer to !ERROR_STATE.SYS_MSG system variable.

IDL_LONG IDL_SysvErrorCodeValue(void)

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This function returns the value of the !ERROR_STATE system variable.

IDL_LONG IDL_SysvOrderValue(void)

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This function returns the value of the !ORDER system variable.