#LISTVIEW_KIND gadget and keyboard + mouse

peceha · 15 August 2018, 05:01

It is not strictly Blitz question but since I write my program in blitz then I ask here.

There are two tags for listview: #GTLV_Selected and #GTLV_Top which I have to use to make keyboard control for that gadget possible.
The problem starts when I use mouse in addition to keyboard: moving the scroll bar doesnt inform me how many items were scrolled. #IDCMP_GADGETUP of ListView gives me only information about selected item.
So the question is: how can I know what the top item of that gadget is after using the scroll bar?
I need that information if I want to get back to keyboard navigation after using the mouse (otherwise selected item may be out of visible area of that list)

Thanks.

thomas · 15 August 2018, 08:47

It depends on the version of gadtools.library you use. Since version 39 (Kick 3.0) there is GT_GetGadgetAttrs which lets you retrieve this information from the gadget. In V39 you can also use GTLV_MakeVisible instead of GTLV_Top to let the gadget decide whether the list needs to be moved.

peceha · 15 August 2018, 11:26

Thank you for the info!!!
Now I can move on with my program

15 August 2018, 05:01	#1
peceha Registered User Join Date: Dec 2017 Location: Poland Age: 47 Posts: 282	#LISTVIEW_KIND gadget and keyboard + mouse It is not strictly Blitz question but since I write my program in blitz then I ask here. There are two tags for listview: #GTLV_Selected and #GTLV_Top which I have to use to make keyboard control for that gadget possible. The problem starts when I use mouse in addition to keyboard: moving the scroll bar doesnt inform me how many items were scrolled. #IDCMP_GADGETUP of ListView gives me only information about selected item. So the question is: how can I know what the top item of that gadget is after using the scroll bar? I need that information if I want to get back to keyboard navigation after using the mouse (otherwise selected item may be out of visible area of that list) Thanks.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
A4000, mouse clicks, no mouse move, no keyboard	OverDose	support.Hardware	4	16 March 2011 13:25
Keyboard and mouse trouble	Coldwinter	support.Hardware	12	29 July 2006 07:07
Gadget/Layout.gadget V44	ruliovega	support.Apps	6	02 January 2006 11:50
Keyboard/mouse probs!	stainy	support.WinUAE	0	23 July 2004 18:05
rpg mouse+keyboard	corchians	support.Games	1	28 March 2003 21:04

15 August 2018, 08:47	#2
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,985	It depends on the version of gadtools.library you use. Since version 39 (Kick 3.0) there is GT_GetGadgetAttrs which lets you retrieve this information from the gadget. In V39 you can also use GTLV_MakeVisible instead of GTLV_Top to let the gadget decide whether the list needs to be moved.

15 August 2018, 11:26	#3
peceha Registered User Join Date: Dec 2017 Location: Poland Age: 47 Posts: 282	Thank you for the info!!! Now I can move on with my program

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)