Move declaration of createSnapshotOfNativeWindow to module header

modules/juce_gui_basics/juce_gui_basics.h

@@ -161,6 +161,10 @@ namespace juce
 
     class FlexBox;
     class Grid;
+
+   #if JUCE_MAC || JUCE_WINDOWS
+    Image createSnapshotOfNativeWindow (void* nativeWindowHandle);
+   #endif
 }
 
 #include "mouse/juce_MouseCursor.h"

modules/juce_gui_basics/native/juce_mac_Windowing.mm

@@ -634,7 +634,6 @@ static Image createNSWindowSnapshot (NSWindow* nsWindow)
     }
 }
 
-Image createSnapshotOfNativeWindow (void*);
 Image createSnapshotOfNativeWindow (void* nativeWindowHandle)
 {
     if (id windowOrView = (id) nativeWindowHandle)

modules/juce_gui_basics/native/juce_win32_Windowing.cpp

@@ -969,7 +969,6 @@ private:
 };
 
 //==============================================================================
-Image createSnapshotOfNativeWindow (void*);
 Image createSnapshotOfNativeWindow (void* nativeWindowHandle)
 {
     auto hwnd = (HWND) nativeWindowHandle;