diff -r c734b008e3e8 modules/javafx.swt/src/main/java/javafx/embed/swt/FXCanvas.java
--- a/modules/javafx.swt/src/main/java/javafx/embed/swt/FXCanvas.java	Mon Jul 31 04:14:09 2017 -0700
+++ b/modules/javafx.swt/src/main/java/javafx/embed/swt/FXCanvas.java	Tue Nov 21 21:25:45 2017 +0100
@@ -184,6 +184,17 @@
             } catch (Exception e) {
                 // FAIL silently should the reflection fail
             }
+        } else if( SWT.getPlatform().equals("win32") ) {
+        	if( swtDPIUtilMethod == null ) {
+        		return 1.0;
+        	}
+
+        	try {
+        		Integer value = (Integer) swtDPIUtilMethod.invoke(null);
+        		return value.intValue() / 100.0;
+        	} catch (Exception e) {
+        		// FAIL silently should the reflection fail
+			}
         }
         return 1.0;
     }
@@ -226,6 +237,8 @@
     private static Method screenMethod;
     private static Method backingScaleFactorMethod;
 
+    private static Method swtDPIUtilMethod;
+
     static {
         if (SWT.getPlatform().equals("cocoa")) {
             try {
@@ -246,6 +259,15 @@
             } catch (Exception e) {
                 //Fail silently.  If we can't get the methods, then the current version of SWT has no retina support
             }
+        } else if( SWT.getPlatform().equals("win32") ) {
+        	try {
+        		if( System.getProperty("swt.autoScale") == null || ! "false".equalsIgnoreCase(System.getProperty("swt.autoScale"))) {
+        			Class dpiUtilClass = Class.forName("org.eclipse.swt.internal.DPIUtil");
+            		swtDPIUtilMethod = dpiUtilClass.getMethod("getDeviceZoom");
+        		}
+        	} catch (Exception e) {
+                //Fail silently.  If we can't get the methods, then the current version of SWT has no retina support
+            }
         }
         initFx();
     }
@@ -311,8 +333,19 @@
         AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
             System.setProperty("com.sun.javafx.application.type", "FXCanvas");
             System.setProperty("javafx.embed.isEventThread", "true");
-            System.setProperty("glass.win.uiScale", "100%");
-            System.setProperty("glass.win.renderScale", "100%");
+            if( swtDPIUtilMethod == null ) {
+            	System.setProperty("glass.win.uiScale", "100%");
+                System.setProperty("glass.win.renderScale", "100%");
+            } else {
+            	Integer scale = 100;
+            	try {
+            		scale = (Integer) swtDPIUtilMethod.invoke(null);
+            	} catch (Exception e) {
+            		//Fail silently
+				}
+            	System.setProperty("glass.win.uiScale", scale + "%");
+                System.setProperty("glass.win.renderScale", scale + "%");
+            }
             System.setProperty("javafx.embed.eventProc", eventProcStr);
             return null;
         });