On Fri, 22 Mar 2019 19:52:52 +0100, Mike Wey wrote:

AFAIK the windows API will accept both the forward and backward slash,
so not something GTK/GLib does for you.

GTK is OS-aware enough to know which way to slash.

is now:

Compilers are OS-aware enough to know which way to slash.

Thanks again, Mike.