gnuplot-info

[Gnuplot-info] Checking the return of pause -1's button press

[Suresh G. <sgo...@ya...>]

Hello,

  The following command 
      
      pause -1 "Show this message"

  puts up a dialog box with buttons named OK and Cancel.
  I would like to branch based on whether the user pressed
  on OK or Cancel.  Can this be done and, if so, how?  

  (Help shows the use of "pause mouse key" followed by 
  checking for MOUSE_KEY, but I would like to use "pause -1 ["<msg>"]
  and check for press of the OK or Cancel button.)

  Thanks,

  --Suresh
   

Re: [Gnuplot-info] Checking the return of pause -1's button press

[<HBB...@t-...>]

Suresh Govindachar wrote:
> Hello,
> 
>   The following command 
>       
>       pause -1 "Show this message"
> 
>   puts up a dialog box with buttons named OK and Cancel.

... on MS Windows.  Other platforms handle it differently.

>   I would like to branch based on whether the user pressed
>   on OK or Cancel.

That won't work.  If "pause -1" is in a script, and the user pressed 
'Cancel', the script is terminated.  You wouldn't reach that branch to 
decide anything.

>  Can this be done and, if so, how?  

That's what "pause mouse" is for, so use it.

Re: [Gnuplot-info] Checking the return of pause -1's button press

[Suresh G. <sgo...@ya...>]

  Hans-Bernhard Br=F6ker wrote:=20
  > Suresh Govindachar wrote:
  >>=20
  >> The following command
  >>    =20
  >>     pause -1 "Show this message"
  >>
  >> puts up a dialog box with buttons named OK and Cancel.
  >=20
  > ... on MS Windows.  Other platforms handle it differently.

  I see.
  =20
  >> I would like to branch based on whether the user pressed
  >> on OK or Cancel.
  >=20
  > That won't work.  If "pause -1" is in a script, and the user
  > pressed 'Cancel', the script is terminated.  You wouldn't reach
  > that branch to decide anything.
  >=20
  >>  Can this be done and, if so, how? =20
  >=20
  > That's what "pause mouse" is for, so use it.
 =20
  As indicated in the original post, I was aware of the "pause
  mouse" feature.  But I did not elaborate on why I did not want to
  use it;  here's why:  With pause -1, the user can examine the plot
  by using all the commands that show up after typing h (such as p
  for previous zoom).  With "pause mouse", I do not know how to
  continue to offer the user those commands -- can it be done, and
  if so how?

  Thanks,

  --Suresh