[solved] javascript signals and slots



  • Having trawled through all the docs, I find myself stuck again, mainly because I know javascript, but not C++

    What I have is :

    1 A load of buttons, dynamically created using javascript via createComponent("whatever.qml"), and the buttons all have onclicked pointing to a function do_something

    2 javascript arrays OUTSIDE the function full of stuff needed so that function do_something can make decisions.

    What I am trying to learn is...

    How does do_something find out what button got clicked ? (signals and slots I believe, but how in javascript ?)

    How does do_something, once it has somehow learnt what button got pressed, access those javascript arrays ? This seems to be a problem due to javascript global variables not being really really global in scope.

    Thanks in advance for any help. I suspect it's a situation where, once I am shown, it will all seem incredibly obvious.


  • Moderators

    Hi,

    If I understood you correctly, you can modify the do_something() to accept an argument (eg. do_something(objname) ) and then when you call the function from that particular Button Click you can pass the Button's objectName.



  • Many thanks.

    And as predicted, it is one of those obvious solutions !

    I think in diving into the whole signal/slots aspect I forgot that onclicked calling a function can of course pass parameters.


Log in to reply
 

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.