Appendix A: System Routines — Variable Name Utilities
1119
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
CheckSysFunc
(continued)
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: SymSysVar, CheckReservedName
Example:
The
VarOpen
function uses
CheckSysFunc
to make sure that graph
functions are not added to the list of functions for the user to select from
since they can only be modified by the Y= editor or directly through the
Define command. The following code fragment is from
VarOpen
.
SYM_ENTRY *SymPtr;
HANDLE hOpenVar;
.
.
.
if (0 == CheckSysFunc( SymPtr->Name, NULL ))
if (!PopupAddText( hOpenVar, EOF, SymPtr->Name, 0 ))
/ * memory full error */
.
.
.
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