jvs:cigal:manual:chapter3:getchar
CIGAL Reference Manual, Chapter 3 (Functions): GETCHAR
GETCHAR -- Read one character from the keyboard
usage: val = getchar(noecho,nowait)
GETCHAR reads one character from the keyboard. The returned value is the read character. The flag arguments NOECHO and NOWAIT control how GETCHAR is called, as follows:
If NOECHO == 0, the character is echoed on the screen as it is read If NOWAIT == 0, the function waits until a character has been typed If NOWAIT != 0, the function returns immediately; if no character was read, the return value is 0 Both NOECHO and NOWAIT default to 0.
NOTE: The internal variable, KEYRD can also be used to read a keyboard character. Each time you read the KEYRD variable it returns the next typed character. KEYRD behaves as a variable, rather than a function and can be used more easily than GETCHAR. For most purposes, KEYRD is equivalent to GETCHAR(0,0).
jvs/cigal/manual/chapter3/getchar.txt · Last modified: 2024/06/21 15:44 by 127.0.0.1