transparent and .ico file

Discussion in 'Photoshop' started by steve, Jun 29, 2004.

  1. steve

    steve Guest

    Sorry if this is out of topic question.

    Why I can not save a .ico file with a transparent background?
    I'm using IrfanView

    Thanks

    -- -- -- -- -- -- -- -- -- --
    www.saHOSTplus.com
     
    steve, Jun 29, 2004
    #1
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  2. steve

    steve Guest

    Sorry if this is out of topic question.
    No body love me :-(
     
    steve, Jun 30, 2004
    #2
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  3. steve

    Mr.Clean Guest

    No, it's just that this isn't a Irfanview newsgroup.

    I have no problems saving icons with trans bg's in Irfanview.
     
    Mr.Clean, Jun 30, 2004
    #3
  4. steve

    steve Guest

    Sorry if this is out of topic question.
    then what wrong am I doing that I can not save it as transparent?
     
    steve, Jun 30, 2004
    #4
  5. steve

    Toby Thain Guest

    You can easily do this directly from Photoshop with my .ico file format plugin:
    http://www.telegraphics.com.au/sw/#icoformat

    --Toby
     
    Toby Thain, Jul 9, 2004
    #5
  6. steve

    steve Guest

    Sorry if this is out of topic question.
    Thanks allot, but still dose not save it as a transparent, I can still
    see the background.
    Am I doing something wrong here?
     
    steve, Jul 9, 2004
    #6
  7. steve

    Toby Thain Guest

    The README has more details. ICO files have a 1-bit transparency mask
    and may also have an 8-bit alpha channel (32-bit "XP-style" icons).

    The plugin derives the 1-bit transparency mask in 3 possible ways:
    - from layer transparency when creating an RGB+alpha (32-bit) icon
    - from transparent palette index when creating an Indexed mode icon
    - from an alpha channel (black=opaque, white=transparent)

    Also try opening someone else's favicon.ico with transparency and
    you'll see the alpha channel representing the mask.

    HTH
    Toby
     
    Toby Thain, Jul 10, 2004
    #7
  8. steve

    steve Guest

    Sorry if this is out of topic question.
    That was a good idea.
    I do not believe I did not think of that.

    Thanks allot
     
    steve, Jul 10, 2004
    #8
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