Bltzbasic and Creategadgeta_

peceha · 30 July 2018, 02:40

Hi,
I am trying to create a listview gadget using that command from the title.
One of the arguments must be the exec list:
...
GTLV_Labels (struct List *)
An Exec list whose nodes' ln_Name fields are to be displayed as items in the scrolling list
...

How can I make such a list in blitz?

Thanks

peceha · 31 July 2018, 01:54

This is how I tried to make a list :

Is it the right way?

thomas · 31 July 2018, 09:46

I don't speak Blitzbasic, but judging from the syntax in lista\lh_Head = &lista\lh_Tail I would suppose that you have to use AddHead_(&lista,&node00) because AddHead needs pointers to a list and a node, not the list and the node itself.

And instead of AddHead_ and Insert_ you can use AddTail_ in all three places. It's not your job to remember which was the last node you inserted. That's why the list structure is so complicated, it contains this information for your convenience.

IMHO you don't need to initialize the Type and Pri fields because they have no meaning for a listview gadget.

peceha · 31 July 2018, 12:52

Will try that ASAP
It really makes me nervous already since nothing shows up in the gadget (and I tried many combinations of pointers and.. "not pointers")

Thank you for clarification and verification about creating the list and nodes itself.

30 July 2018, 02:40	#1
peceha Registered User Join Date: Dec 2017 Location: Poland Age: 47 Posts: 282	Bltzbasic and Creategadgeta_ Hi, I am trying to create a listview gadget using that command from the title. One of the arguments must be the exec list: ... GTLV_Labels (struct List *) An Exec list whose nodes' ln_Name fields are to be displayed as items in the scrolling list ... How can I make such a list in blitz? Thanks

31 July 2018, 01:54	#2
peceha Registered User Join Date: Dec 2017 Location: Poland Age: 47 Posts: 282	This is how I tried to make a list : Is it the right way?

31 July 2018, 09:46	#3
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 7,001	I don't speak Blitzbasic, but judging from the syntax in lista\lh_Head = &lista\lh_Tail I would suppose that you have to use AddHead_(&lista,&node00) because AddHead needs pointers to a list and a node, not the list and the node itself. And instead of AddHead_ and Insert_ you can use AddTail_ in all three places. It's not your job to remember which was the last node you inserted. That's why the list structure is so complicated, it contains this information for your convenience. IMHO you don't need to initialize the Type and Pri fields because they have no meaning for a listview gadget.

31 July 2018, 12:52	#4
peceha Registered User Join Date: Dec 2017 Location: Poland Age: 47 Posts: 282	Will try that ASAP It really makes me nervous already since nothing shows up in the gadget (and I tried many combinations of pointers and.. "not pointers") Thank you for clarification and verification about creating the list and nodes itself.

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