Last week I had posted a query about getting keyboard input in a non blocking way.
I received several replies, so I thought I would post back the code I developed which seems to work. This is not the code I will end up using; it is more like a proof of concept program. use strict; use warnings; use Win32::Console; my $signame = ''; my $havebrk = 0; $SIG{INT} = sub {$signame = $_[0]; $havebrk = 1;}; # CTRL-C. $SIG{BREAK} = sub {$signame = $_[0]; $havebrk = 1;}; # CTRL-BREAK, CTRL-ScrollLock. my $STDIN = new Win32::Console(STD_INPUT_HANDLE); $STDIN -> Mode(ENABLE_PROCESSED_INPUT); while (1) { if ($STDIN->GetEvents()) { # We do this inner loop here to make shure that we read # all of the characters in the key buffer. while ($STDIN->GetEvents()) { # Read console event. my @input = $STDIN->Input(); # input[0] is the event type- 1 for keyboard, 2 for mouse. So what is 0 for? if (defined $input[0] and $input[0] == 1) { my ($eventType, $keyState, $keyCount, $keyCode, $scanCode, $keyValue, $keyFlags) = @input; if ($havebrk) {die "User termination on signal $signame.\n\n";} # KeyState of 1 means key down. if ($keyState == 1) { if ($keyValue == 0x00) { # Most control keys fall in here. if ($keyCode == 16) {print "\nSHIFT key pressed.\n";} if ($keyCode == 17) {print "\nCTRL key pressed.\n";} if ($keyCode == 18) {print "\nALT key pressed.\n";} if ($keyCode == 19) {print "\nBREAK key pressed.\n";} if ($keyCode == 20) {print "\nCAPS LOCK key pressed.\n";} if ($keyCode == 33) {print "\nPG UP key pressed.\n";} if ($keyCode == 34) {print "\nPG DN key pressed.\n";} if ($keyCode == 35) {print "\nEND key pressed.\n";} if ($keyCode == 36) {print "\nHOME key pressed.\n";} if ($keyCode == 37) {print "\nLEFT ARROW key pressed.\n";} if ($keyCode == 38) {print "\nUP ARROW key pressed.\n";} if ($keyCode == 39) {print "\nRIGHT ARROW key pressed.\n";} if ($keyCode == 40) {print "\nDOWN ARROW key pressed.\n";} if ($keyCode == 45) {print "\nINS key pressed.\n";} if ($keyCode == 46) {print "\nDEL key pressed.\n";} if ($keyCode == 91) {print "\nLEFT WINDOWS key pressed.\n";} if ($keyCode == 92) {print "\nRIGHT WINDOWS key pressed.\n";} if ($keyCode == 93) {print "\nCONTEXT key pressed.\n";} if ($keyCode == 112) {print "\nF1 pressed.\n";} if ($keyCode == 113) {print "\nF2 pressed.\n";} if ($keyCode == 114) {print "\nF3 pressed.\n";} if ($keyCode == 115) {print "\nF4 pressed.\n";} if ($keyCode == 116) {print "\nF5 pressed.\n";} if ($keyCode == 117) {print "\nF6 pressed.\n";} if ($keyCode == 118) {print "\nF7 pressed.\n";} if ($keyCode == 119) {print "\nF8 pressed.\n";} if ($keyCode == 120) {print "\nF9 pressed.\n";} if ($keyCode == 121) {print "\nF10 pressed.\n";} if ($keyCode == 122) {print "\nF11 pressed.\n";} if ($keyCode == 123) {print "\nF12 pressed.\n";} if ($keyCode == 144) {print "\nNUM LOCK pressed.\n";} if ($keyCode == 145) {print "\nSCROLL LOCK pressed.\n";} } elsif ($keyValue >= 0x7f) { # High line draw chars etc fall in here, however # I was never able to get it to trigger. print "High char pressed.\n"; } else { # *Almost* Everything else is a printable ASCII character. if ($keyValue == 8) {print "BACKSPACE key pressed.\n";} elsif ($keyValue == 9) {print "TAB key pressed.\n";} elsif ($keyValue == 13) {print "ENTER key pressed.\n";} elsif ($keyValue == 27) {print "ESC key pressed.\n";} else { # When here, presumably a printable character has been pressed. my $keyChr = chr($keyValue); print "\nChar pressed: $keyChr\n"; } } } # KeyState of 0 means that a key was released. elsif ($keyState == 0) { if ($keyValue == 0x00) { if ($keyCode == 16) {print "SHIFT key released.\n\n";} if ($keyCode == 17) {print "CTRL key released.\n\n";} if ($keyCode == 18) {print "ALT key released.\n\n";} if ($keyCode == 19) {print "BREAK key released.\n\n";} if ($keyCode == 20) {print "CAPS LOCK key released.\n\n";} if ($keyCode == 33) {print "PG UP key released.\n\n";} if ($keyCode == 34) {print "PG DN key released.\n\n";} if ($keyCode == 35) {print "END key released.\n\n";} if ($keyCode == 36) {print "HOME key released.\n\n";} if ($keyCode == 37) {print "LEFT ARROW key released.\n\n";} if ($keyCode == 38) {print "UP ARROW key released.\n\n";} if ($keyCode == 39) {print "RIGHT ARROW key released.\n\n";} if ($keyCode == 40) {print "DOWN ARROW key released.\n\n";} if ($keyCode == 45) {print "INS key released.\n\n";} if ($keyCode == 46) {print "DEL key released.\n\n";} if ($keyCode == 91) {print "LEFT WINDOWS key released.\n\n";} if ($keyCode == 92) {print "RIGHT WINDOWS key released.\n\n";} if ($keyCode == 93) {print "CONTEXT key released.\n\n";} if ($keyCode == 112) {print "F1 released.\n\n";} if ($keyCode == 113) {print "F2 released.\n\n";} if ($keyCode == 114) {print "F3 released.\n\n";} if ($keyCode == 115) {print "F4 released.\n\n";} if ($keyCode == 116) {print "F5 released.\n\n";} if ($keyCode == 117) {print "F6 released.\n\n";} if ($keyCode == 118) {print "F7 released.\n\n";} if ($keyCode == 119) {print "F8 released.\n\n";} if ($keyCode == 120) {print "F9 released.\n\n";} if ($keyCode == 121) {print "F10 released.\n\n";} if ($keyCode == 122) {print "F11 released.\n\n";} if ($keyCode == 123) {print "F12 released.\n\n";} if ($keyCode == 144) {print "NUM LOCK released.\n\n";} if ($keyCode == 145) {print "SCROLL LOCK released.\n\n";} } elsif ($keyValue >= 0x7f) { # High line draw chars etc fall in here. print "High char released.\n\n"; } else { if ($keyValue == 8) {print "BACKSPACE key released.\n\n";} elsif ($keyValue == 9) {print "TAB key released.\n\n";} elsif ($keyValue == 13) {print "ENTER key released.\n\n";} elsif ($keyValue == 27) {print "ESC key released.\n\n";} else { my $keyChr = chr($keyValue); print "Char released: $keyChr\n\n\n\n"; } } } } } } # I made the delay 3 seconds so you can see what # happens when you enter multiple characters # outside of the INPUT loop. print "ongoing task.\n"; select undef, undef, undef, 3; } _______________________________________________ Perl-Win32-Users mailing list Perl-Win32-Users@listserv.ActiveState.com To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs