diff --git a/src/dorkbox/jna/windows/ShCore.java b/src/dorkbox/jna/windows/ShCore.java
new file mode 100644
index 0000000..3930492
--- /dev/null
+++ b/src/dorkbox/jna/windows/ShCore.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2021 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.jna.windows;
+
+import com.sun.jna.Function;
+import com.sun.jna.NativeLibrary;
+import com.sun.jna.platform.win32.WinNT;
+import com.sun.jna.platform.win32.WinUser;
+import com.sun.jna.ptr.IntByReference;
+
+import dorkbox.jna.JnaHelper;
+import dorkbox.os.OSUtil;
+
+/**
+ * bindings for ShCore.dll
+ *
+ * Minimum supported client
+ *  Windows 8.1 [desktop apps only]
+ *
+ * Minimum supported server
+ *  Windows Server 2012 R2 [desktop apps only]
+ *
+ * <p>
+ * Direct-mapping, See: https://github.com/java-native-access/jna/blob/master/www/DirectMapping.md
+ */
+public
+class ShCore {
+    private static Function GetDpiForMonitor = null;
+
+    static {
+        if (OSUtil.Windows.isWindows8_1_plus()) {
+            NativeLibrary library = JnaHelper.register("shcore", ShCore.class);
+
+            // Abusing static fields this way is not proper, but it gets the job done nicely.
+            // GetDpiForMonitor is NOT always available! (Windows 8.1+)
+            GetDpiForMonitor = library.getFunction("GetDpiForMonitor");
+        }
+    }
+
+    /**
+     * https://msdn.microsoft.com/de-de/library/windows/desktop/dn280510(v=vs.85).aspx
+     *
+     * @param hMonitor A handle to the window whose DC is to be retrieved. If this value is NULL, GetDC retrieves the DC for the entire
+     * screen.
+     *
+     * @param dpiType
+     *    MDT_EFFECTIVE_DPI  = 0,
+     *      The effective DPI. This value should be used when determining the correct scale factor for scaling UI elements. This
+     *      incorporates the scale factor set by the user for this specific display.
+     *    MDT_ANGULAR_DPI    = 1,
+     *      The angular DPI. This DPI ensures rendering at a compliant angular resolution on the screen. This does not include the
+     *      scale factor set by the user for this specific display.
+     *    MDT_RAW_DPI        = 2,
+     *      The raw DPI. This value is the linear DPI of the screen as measured on the screen itself. Use this value when you want
+     *      to read the pixel density and not the recommended scaling setting. This does not include the scale factor set by the user
+     *      for this specific display and is not guaranteed to be a supported DPI value.
+     *    MDT_DEFAULT        = MDT_EFFECTIVE_DPI
+     *
+     *
+     * @return if the function succeeds, the return value is a handle to the DC for the specified window's client area. If the function
+     * fails, the return value is NULL.
+     */
+    public static
+    WinNT.HRESULT GetDpiForMonitor(WinUser.HMONITOR hMonitor, int dpiType, IntByReference dpiX, IntByReference dpiY) {
+        if (GetDpiForMonitor != null) {
+            // HRESULT GetDpiForMonitor(HMONITOR hmonitor, MONITOR_DPI_TYPE dpiType, UINT *dpiX, UINT *dpiY);
+            return (WinNT.HRESULT) GetDpiForMonitor.invoke(WinNT.HRESULT.class, new Object[]{hMonitor.getPointer(), dpiType, dpiX, dpiY});
+        } else {
+            return null;
+        }
+    }
+}