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Annotation of researchv10dc/630/man/src/p_man/man3/kbdchar.3r, revision 1.1.1.1

1.1       root        1: .ds ZZ DEVELOPMENT PACKAGE
                      2: .TH KBDCHAR 3R "630 MTG"
                      3: .XE "kbdchar()"
                      4: .SH NAME
                      5: kbdchar \- read character from keyboard
                      6: .SH SYNOPSIS
                      7: \fB
                      8: int kbdchar ( )
                      9: \fR
                     10: .SH DESCRIPTION
                     11: The
                     12: .I kbdchar
                     13: function
                     14: returns the next keyboard character typed to the process.
                     15: If no characters have been typed,
                     16: .I kbdchar
                     17: returns \-1.
                     18: If
                     19: .I \s-1KBD\s+1
                     20: has not been
                     21: requested,
                     22: .I kbdchar
                     23: will always return \-1,
                     24: even if characters have been typed to the process.
                     25: .SH EXAMPLE
                     26: This code will prevent a program from exiting until the 'q' character
                     27: has been typed on the keyboard.
                     28: .PP
                     29: .RS 3
                     30: .ft CM
                     31: .nf
                     32: #include <dmd.h>
                     33: 
                     34: main( )
                     35: {
                     36:      request (KBD);
                     37: 
                     38:      .
                     39:      .
                     40:      .
                     41: 
                     42:      do
                     43:           wait(KBD);
                     44:      while( kbdchar ( ) != 'q' );
                     45: }
                     46: .fi
                     47: .RE
                     48: .ft R
                     49: .SH SEE ALSO
                     50: resources(3R).
                     51: .SH WARNING
                     52: Since the keyboard routine is a process, you must release the
                     53: CPU in order to have typed characters placed on the
                     54: application's keyboard queue.

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