Keyboard options

[Uttama_vizard]

Hi,

I am trying to build an application with radio buttons activated by keyboard instead of mouse. I am using these lines

def onKeyDown(key):
if key == 'A':
aRadio.visible(1)
aans = aRadio.get()
print aans

But, say there is another OK button
if key == 'D':
OKbutton.visible(0)
dans = OKbutton.get()
print dans

Now, I am trying, if an user presses the A and D button in succession, then I want some response.

if key == 'A':
aRadio.visible(1)
aans = aRadio.get()
print aans
if key == 'D':
OKbutton.visible(0)
dans = OKbutton.get()
print 'abcd'

But, it is not printing out 'abcd'.

Can anyone suggest where I am going wrong or is there is any better way?

Thanks in advance for the sugestion


Uttama

[Uttama_vizard]

Hi,

I have used a counter and this solves my problem.

But, I don't know, why nested if loop is not sensing.

Thanks

Uttama

[Uttama_vizard]

Hi,

Does nested if loop work in Vizard (particularly while using two buttons of keyboard or a keyboard button and a variable value)?

If somebody has some suggestion....it would be really helpful to me.

Thanks

Uttama

[farshizzo]

Python supports nested loops. Here is a sample:

for x in range(5):
    for y in range(5):
        print x,y

I'm not sure how this relates to what you are trying to do. There are many ways you can detect consecutive keyboard presses in Vizard, however using nested loops is not related to it.

[Uttama_vizard]

Hello,

I was trying by using nested if loop:

aRadio = QuestionBox.add(viz.RADIO, 0, "A. 1")
bRadio = QuestionBox.add(viz.RADIO, 0, "B. 2")
cRadio = QuestionBox.add(viz.RADIO, 0, "C. 3")
OKbutton = QuestionBox.add(viz.BUTTON, "OK")
def onKeyDown(key):
if key == 'A':
if key == 'D':
print 'abcd'
viz.callback(viz.KEYDOWN_EVENT,onKeyDown)

Here, A is my first option and D is my OK button. So, what I want is if the user presses A and subsequently D (i.e. OK button), I must print something say 'abcd'.

Are there further options available for consecutive keyboard entries?

Thanks

Uttama

[Uttama_vizard]

Hello,

The help file does not show any options for consecutive keyboard entries.

Thanks

Uttama