use MIME::Base64 (); $raw_data = "R0lGODlhEAAQAJEAAAAAAP///+vc3AAAACwAAAAAEAAQAAACDpSPqcvtD6OctNqLsz4FADs="; my $icon_data = MIME::Base64::decode_base64( $raw_data ); my $images_sm = Wx::ImageList->new( 16, 16, 1 ); my $file = IO::Scalar->new( \$icon_data ); my $image = Wx::Image->new(); $image->LoadFile( $file, wxBITMAP_TYPE_ANY ); close($file); $images_sm->Add( Wx::Bitmap->new($image, -1) );