GTK application that will update when some file stream (STDIN) changes

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Hello All

I am writing an application (with gtk3, and C) that will be updating a label with data from a file stream (stdin). I have written a simple ui that will be showing a label, which works. Then I have added code to watch an io channel, like so

ioChannel = g_io_channel_unix_new(STDIN_FILENO);
g_io_add_watch(ioChannel, G_IO_IN | G_IO_HUP, lineRead, NULL);

The channel is being read and the data printed on stdout (in the lineRead callback function). But I can not see the ui anymore.

When I do not watch the io channel, then the ui is being shown.

I know that, when doing this with a thread, I can not update the widgets in that thread. But how would we be doing this, with io channels.

Regards
Riza

2

GIO is probably easier to use, with for example GUnixInputStream.

With GIO you can read a GInputStream and receive a callback when data is read.

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