LC subscription and special characters

Paul Dupuis paul at
Thu May 12 08:26:34 EDT 2022

On 5/12/2022 6:18 AM, panagiotis m via use-livecode wrote:
> Hello Paul,
> Does Alt+A9 work for you?
> Cheers,
> Panos
> --

No. Alt+A9 does not work. I checked my Registry (per and in 
Computer\HKEY_CURRENT_USER\Control Panel\Input Method there is no 
"EnableHexNumpad". There is only "(Default)" and "Show Status" and a 
"Hot Keys" sub key list.

I thought I would be clever and write a bit of LC script (see below) 
using listRegistry, queryRegistry, and setRegistry. However, none of the 
registry functions appear to be working in the IDE under LC 9.6.7 and I 
vaguely recall that they now only work if the application executing them 
has Administrative privileges? Is that correct?

I guess the larger question is: For a person developing an LC based app 
who's users what to enter Unicode characters, what is the "best 
practice" for doing this? Is it always copy and paste from some web site 
or the "Character Map" accessory on Windows or what? If there some bit 
of working code a person can put in their application to set the 
Registry key IF the user checks a preference option or clicks a button 
or something?

For NEXT MONTH's Livecode Global troubleshooting session, how would one 
address this? :-)

on mouseUp pMouseButton
   if platform() = "Win32" then
     put listRegistry("Computer\HKEY_CURRENT_USER\Control Panel\Input 
Method") into tList

     answer "Keys at 'Computer\HKEY_CURRENT_USER\Control Panel\Input 
Method':"&cr&tList&cr&"On my computer I should see 1 key: 'Show Status'" 

     if "EnableHexNumpad" is not among the lines of tList then
       -- no registry key exists
       put empty into tData -- flag teh key does not exists
       -- a key exists, now check its value
       put queryRegistry("Computer\HKEY_CURRENT_USER\Control Panel\Input 
Method\EnableHexNumpad\") into tData
     end if
     if tData <> 1 then
       put "<p><b>Your Windows system is not configured for keyboard 
entry of Unicode characters!</b></p><p>" into tPrompt
       put "<p>The value of Registery Key 
'Computer\HKEY_CURRENT_USER\Control Panel\Input Method\EnableHexNumpad\' 
is:"&&tData &"." after tPrompt
       put "A reboot will be required.</p>" after tPrompt

       answer warning tPrompt with "Confgured" or "Skip"
       if it = "Configure" then
         if not setRegistry("Computer\HKEY_CURRENT_USER\Control 
Panel\Input Method\EnableHexNumpad",1) then
           -- an error occured
           answer error (the result)
           answer warning "<p><b>Please reboot your computer.</b></p>"
         end if
       end if
     end if
   end if
end mouseUp

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