forums.silverfrost.com Forum Index forums.silverfrost.com
Welcome to the Silverfrost forums
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Problem with callback attached to a spin wheel

 
Post new topic   Reply to topic    forums.silverfrost.com Forum Index -> ClearWin+
View previous topic :: View next topic  
Author Message
mhudson



Joined: 05 Jan 2006
Posts: 18

PostPosted: Thu May 18, 2006 3:08 am    Post subject: Problem with callback attached to a spin wheel Reply with quote

I've been having a bit of trouble with the following code:

Back to top
View user's profile Send private message
Anonymous
Guest





PostPosted: Thu May 18, 2006 3:13 am    Post subject: Problem with callback attached to a spin wheel Reply with quote

Okay, so clicking the "code" button caused the message to be posted prematurely. Trying again.

The code is as follows:

<code>
program spinwheeltest
implicit none

include <clearwin.ins>,nolist

integer :: i,index,NumSites,Zone

common /blk/ index,Zone

integer :: UpdateCallback
external UpdateCallback

NumSites=4
index=0
Zone=0

i = winio@('%cnSite number: %il%dd%`^3rd%`il%2nl&',
1 1,NumSites,1,index,UpdateCallback)
i = winio@('Zone:%`3rd',Zone)

end program spinwheeltest

integer function UpdateCallback()
implicit none

include <clearwin.ins>,nolist

integer :: index,Zone
common /blk/ index,Zone

Zone=Zone+1

call window_update@(Zone)

UpdateCallback=2
end function UpdateCallback
</code>

The aim is to create a window with a spin wheel and a variable that is updated as the spin wheel is changed. In this case the Zone variable just gets incremented each time the spin wheel is used either up or down.

The %rd boxes need to be read-only so that the user can only update the values by using the spin wheel.

I find that, when the %rd attached to the %dd is made read-only, the call back function is not called when the spin wheel is used, and so the Zone variable does not get updated. The callback does get called if the spin-wheel is attached to a non-read-only box.

I am using 4.91 of FTN95 on Windows XP.

Any ideas? :confused:

Mark.
Back to top
PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7916
Location: Salford, UK

PostPosted: Thu May 18, 2006 9:42 am    Post subject: Problem with callback attached to a spin wheel Reply with quote

Mark

This looks like a bug in ClearWin+.
We can probably fix it for the next release but in the meantime it works quite well if the spin edit box is not read-only. Any number that you type in is adjusted to be in range and sometimes it is quicker to type in a value.

I cannot think of a simple work-around at the moment.
Back to top
View user's profile Send private message AIM Address
Anonymous
Guest





PostPosted: Thu May 18, 2006 9:49 am    Post subject: Problem with callback attached to a spin wheel Reply with quote

Hi Paul,

Thanks for your reply. It turns out that %rs does trigger the callback, so what I've done is this:

Use %`rs instead of %`rd, convert my integer to be changed into a string using CNUM, and then check on the callback_reason with clearwin_string@ in the callback function triggered by the spin wheel to check for SPIN_UP and SPIN_DOWN, and change the integer (and string) manually according to the direction clicked. This has worked fine.

Mark.
Back to top
PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7916
Location: Salford, UK

PostPosted: Fri May 19, 2006 9:57 am    Post subject: Problem with callback attached to a spin wheel Reply with quote

Mark

This bug has been fixed for the next release.
Back to top
View user's profile Send private message AIM Address
Display posts from previous:   
Post new topic   Reply to topic    forums.silverfrost.com Forum Index -> ClearWin+ All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group