expose platform-native monitor identifier

src/win32/monitor.rs

@@ -3,6 +3,8 @@ use user32;
 
 use std::collections::VecDeque;
 
+use NativeMonitorID;
+
 /// Win32 implementation of the main `MonitorID` object.
 pub struct MonitorID {
     /// The system name of the monitor.
@@ -113,6 +115,11 @@ impl MonitorID {
         Some(self.readable_name.clone())
     }
 
+    /// See the docs of the crate root file.
+    pub fn get_native_identifier(&self) -> NativeMonitorID {
+        NativeMonitorID::Name(self.readable_name.clone())
+    }
+
     /// See the docs if the crate root file.
     pub fn get_dimensions(&self) -> (u32, u32) {
         // TODO: retreive the dimensions every time this is called