Added OSD comment if EFB Copies are disabled.

Source/Core/DolphinWX/Frame.cpp

@@ -59,6 +59,7 @@
 
 #include "InputCommon/GCPadStatus.h"
 
+#include "VideoCommon/OnScreenDisplay.h"
 #include "VideoCommon/RenderBase.h"
 #include "VideoCommon/VertexShaderManager.h"
 #include "VideoCommon/VideoConfig.h"
@@ -1014,8 +1015,15 @@ void CFrame::OnKeyDown(wxKeyEvent& event)
 		{
 			OSDChoice = 3;
 			// Toggle EFB copies between EFB2RAM and EFB2Texture
+			if (!g_Config.bEFBCopyEnable)
+			{
+				OSD::AddMessage("EFB Copies are disabled, enable them in Graphics settings for toggling", 6000);
+			}
+			else
+			{
 				g_Config.bCopyEFBToTexture = !g_Config.bCopyEFBToTexture;
 			}
+		}
 		else if (IsHotkey(event, HK_TOGGLE_FOG))
 		{
 			OSDChoice = 4;