Re: [Fxruby-users] Copying an Image with FXMemoryStream?

[Lyle J. <jl...@cf...>]

Carsten Eckelmann wrote:

> I just can't figure out how this FXMemoryStream works. I just want to 
> (deep) copy an image in memory:

<snip>

> What am I doing wrong?

Based on the error message, there's probably a bug with the wrapping of 
FXMemoryStream, and I will need to take a look. In the meantime, if it's 
acceptable to use a temporary file you can just save the image out to 
disk and re-load it for the copy, i.e.

     # Save orig_img to a file on disk (tmpfile.jpg)
     FXFileStream.open("tmpfile.jpg", FXStreamSave) do |stream|
       fxsaveJPG(stream, orig_img.data.to_s, 0,
                 orig_img.width, orig_img.height, orig_img.quality)
     end

     # Reload it and make a new FXJPGImage
     dest_img = nil
     File.open("tmpfile.jpg", "rb") do |file|
       dest_img = FXJPGImage.new(app, file.read,
                                 IMAGE_KEEP|IMAGE_SHMI|IMAGE_SHMP)
     end

Hope this helps,

Lyle