Function gdk4::set_allowed_backends

pub fn set_allowed_backends(backends: &str)

Sets a list of backends that GDK should try to use.

This can be useful if your application does not work with certain GDK backends.

By default, GDK tries all included backends.

For example:

⚠️ The following code is in c ⚠️

gdk_set_allowed_backends ("wayland,macos,*");

instructs GDK to try the Wayland backend first, followed by the MacOs backend, and then all others.

If the GDK_BACKEND environment variable is set, it determines what backends are tried in what order, while still respecting the set of allowed backends that are specified by this function.

The possible backend names are:

• broadway
• macos
• wayland.
• win32
• x11

You can also include a * in the list to try all remaining backends.

This call must happen prior to functions that open a display, such as Display::open(), gtk_init(), or gtk_init_check() in order to take effect.

backends

a comma-separated list of backends