Hello,
I presume you are not using scilab 5.5.0, change the function as follows :
function key=waitforkeypress()
global _keypress
set(gcf(),'event_handler','handler');
set(gcf(),'event_handler_enable','on')
_keypress=0;
while ~_keypress
sleep(1)
end
set(gcf(),'event_handler_enable','off')
key=_keypress;
endfunction
Le 13/08/2014 14:12, Jens a écrit :
This is small example's output:
!--error 77
set: falsche Nummer von Eingangsargument(en): 2 nach 3 erwartet.
at line 3 of function waitforkeypress called by :
select waitforkeypress()
at line 369 of exec file called by : [last line og script]
exec('G:\Daten\ScilabFun\functionCheck.sce', -1)
Jens
-----------------------------------------------------------------------------------------------------------
Am 13.08.2014 13:41, schrieb mottelet [via Scilab / Xcos - Mailing
Lists Archives]:
Would this small example fit your needs ?
function handler(win,x,y,ibut)
global _keypress
if or(ibut==(37:40))
_keypress=ibut;
end
endfunction
function key=waitforkeypress()
global _keypress
set(gcf(),'event_handler','handler','event_handler_enable','on')
_keypress=0;
while ~_keypress
sleep(1)
end
set(gcf(),'event_handler_enable','off')
key=_keypress;
endfunction
while 1
select waitforkeypress()
case 37
disp('left')
case 38
disp('up')
case 39
disp('right')
case 40
disp('down')
break
end
end
S.
Jens <[hidden email]
</user/SendEmail.jtp?type=node&node=4031032&i=0>> a écrit :
Hello,
My event_handler experiments with the Scilab help example in "Event
handler functions" (see below) led to nothing. I can see the
"event" at the bottom of the graphic window but I cannot arrest it
in a variable. I tried this:
function my_eventhandler(win,x,y,ibut)
if ibut==-1000 then return,end
[x,y]=xchange <xchange.html>(x,y,'i2f')
xinfo <xinfo.html>(msprintf <msprintf.html>('Event code %d at mouse
position is (%f,%f)',ibut,x,y))
endfunction
plot2d <plot2d.html>()
fig = gcf <gcf.html>() ;
fig.event_handler = 'my_eventhandler' ;
fig.event_handler_enable = "on" ;
//now:
// - move the mouse over the graphic window
// - press and release keys shifted or not with Ctrl pressed or not
// - press button, wait a little release
// - press and release button
// - double-click button
fig.event_handler_enable = "off" ; //suppress the event handler
<a href="scilab://scilab.execexample/"> <a
href="scilab://scilab.editexample/">
I fear I must retire to
m=evstr(x_dialog(...)
Jens
----------------------------------------------------------------------------
Am 13.08.2014 11:12, schrieb mottelet [via Scilab / Xcos - Mailing
Lists Archives]:
Hello,
IMHO, the only way to trap a keypress and get the ascii (?) code is
to use the event_handler callback of a figure :
function handler(x,y,ibut)
//
endfunction
f=gcf();
f.event_handler='handler';
f.event_handle_enable='on';
On my computer, I have the following mapping
left arrow pressed : ibut=37 (released=-37)
up arrow : 38
right arrow 39
down arrow 40
The problem is that you need to have a figure opened, and that this
figure must have the focus.
S.
Jens <[hidden email]
</user/SendEmail.jtp?type=node&node=4031030&i=0>> a écrit :
Hi Samuel,
ASCII representation of up, down etc. would help me if I knew a Scilab
command which puts the ascii value into a variable. input() is
definitely
unable to do so.
Jens
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