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* Author: Thomas E. Dickey
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* Author: Thomas E. Dickey
The <EM>level</EM> parameter controls the result:
0 the library functions normally, rendering non-
The <EM>level</EM> parameter controls the result:
0 the library functions normally, rendering non-
parameter is out of range, the function returns <STRONG>ERR</STRONG>. Oth-
erwise, it returns the previous level: <STRONG>0</STRONG>, <STRONG>1</STRONG> or <STRONG>2</STRONG>.
parameter is out of range, the function returns <STRONG>ERR</STRONG>. Oth-
erwise, it returns the previous level: <STRONG>0</STRONG>, <STRONG>1</STRONG> or <STRONG>2</STRONG>.
<H2>PORTABILITY</H2><PRE>
This routine is specific to ncurses. It was not supported
on Version 7, BSD or System V implementations. It is rec-
<H2>PORTABILITY</H2><PRE>
This routine is specific to ncurses. It was not supported
on Version 7, BSD or System V implementations. It is rec-