1 files changed, 32 insertions, 0 deletions
diff --git a/src/nativewindow/native/win32/WindowsDWM.h b/src/nativewindow/native/win32/WindowsDWM.h
new file mode 100644
index 000000000..36f82fc94
--- /dev/null
+++ b/src/nativewindow/native/win32/WindowsDWM.h
@@ -0,0 +1,32 @@
+#ifndef _WINDOWS_DWM_H_
+#define _WINDOWS_DWM_H_
+
+    #include <windows.h> 
+
+    #define DWM_BB_ENABLE                 0x00000001  // fEnable has been specified  
+    #define DWM_EC_DISABLECOMPOSITION     0
+    #define DWM_EC_ENABLECOMPOSITION      1
+      
+    typedef struct _DWM_BLURBEHIND  
+    {  
+        DWORD dwFlags;  
+        BOOL fEnable;  
+        HRGN hRgnBlur;  
+        BOOL fTransitionOnMaximized;  
+    } DWM_BLURBEHIND, *PDWM_BLURBEHIND;  
+      
+    typedef struct _MARGINS  
+    {  
+        int cxLeftWidth;      // width of left border that retains its size  
+        int cxRightWidth;     // width of right border that retains its size  
+        int cyTopHeight;      // height of top border that retains its size  
+        int cyBottomHeight;   // height of bottom border that retains its size  
+    } MARGINS, *PMARGINS;  
+      
+    BOOL DwmIsExtensionAvailable();
+    BOOL DwmIsCompositionEnabled();
+    BOOL DwmEnableComposition( UINT uCompositionAction );
+    BOOL DwmEnableBlurBehindWindow(HWND hwnd, const DWM_BLURBEHIND* pBlurBehind);
+    BOOL DwmExtendFrameIntoClientArea(HWND hwnd, const MARGINS *pMarInset);
+      
+#endif /* _WINDOWS_DWM_H_ */