[nvda] Re: video system hooks

agree

  ----- Original Message ----- 
  From: Hrvoje Katić 
  To: nvda@xxxxxxxxxxxxx 
  Sent: Thursday, May 28, 2009 9:05 PM
  Subject: [nvda] Re: video system hooks


  Computer without a graphic card is in general just a rubbish regardless of 
having or not having screen reader. When you don't have graphics card, you 
cannot do lots of things in todays world.

  On 28.5.2009. 19:38, developer wrote: 
    yes but user need to have a graphic card..
      ----- Original Message ----- 
      From: kendell clark 
      To: nvda@xxxxxxxxxxxxx 
      Sent: Thursday, May 28, 2009 7:18 PM
      Subject: [nvda] Re: video system hooks


      This is because jaws uses what is called video intercept, or display 
chaining. it is not portable because in order for it to run the display 
chaining manager, or dcm has to be installed on the computer it is running on. 
If nvda gets display hooks it will not affect it's portability. display hooks 
are quite different from display chaining. instead of capturing video 
information before it reaches the video card itself, display hooks capture the 
information the  application   is sending to the video card and then passes it 
on to the video card. it does not rely on  any special software to be 
installed. it doesn't need any.  Nvda will use this method, rather than display 
chaining for this reason. 
      Thanks
      Kendell clark
      On 5/28/2009 12:11 PM, developer wrote: 
        do you know example of jaws.
        jaw is not portable with system hooks
        so system hooks 
        bye bye
          ----- Original Message ----- 
          From: Josh 
          To: nvda email list 
          Sent: Thursday, May 28, 2009 4:02 PM
          Subject: [nvda] video system hooks


          Hi,

          video system hooks will not decrease portability. System access is a 
good example of a portable screen readerwith video system hookss. 

          Josh

          Josh email is    jkenn337@xxxxxxxxx
          msn: kenn6498ku@xxxxxxxxxxx
          skype: jkenn337

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