1 files changed, 25 insertions, 0 deletions
diff --git a/libgamma_method_default_site_variable.c b/libgamma_method_default_site_variable.c
new file mode 100644
index 0000000..146041f
--- /dev/null
+++ b/libgamma_method_default_site_variable.c
@@ -0,0 +1,25 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Return the default variable that determines
+ * the default site for an adjustment method
+ * 
+ * @param   method  The adjustment method (display server and protocol)
+ * @return          The environ variables that is used to determine the
+ *                  default site, `NULL` if there is none, that is, if
+ *                  the method does not support multiple sites
+ */
+const char *
+libgamma_method_default_site_variable(int method)
+{
+	switch (method) {
+	case LIBGAMMA_METHOD_X_RANDR:
+		return "DISPLAY";
+	case LIBGAMMA_METHOD_X_VIDMODE:
+		return "DISPLAY";
+	default:
+		return NULL;
+	}
+}