Hi Scuri,

Thank you. One of the reasons we chose IUP was for its plain vanilla C support. Thank you for maintaining C support.

73,
Ron / W4MMP

On 6/30/2016 08:57, Antonio Scuri wrote:
  Hi,

  I just tested in GTK 2.20 and it worked ok with

IupSetAttribute(dialog,"OPACITY","128");

  Notice that a value of "1" is almost fully transparent.

  The new C++ api will be a complement, not a replacement.

Best,
Scuri


On Thu, Jun 30, 2016 at 1:00 AM, anon anon <[email protected] <mailto:[email protected]>> wrote:

    using linux with gtk version greater than 2.12. compiles fine but
    opacity does not work. i didnt see anything about it on to do list
    etc. so im asking here. i didnt try to reproduce it on a different
    machine. anyone else have this problem? question not related: is
    iup 4.x going to support C?

    my C code:
    IupSetAttribute(dialog,"OPACITY","1");

    
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