From 230731c69d9f0bbd552eb05878701623cce1162a Mon Sep 17 00:00:00 2001
From: Ykkrosh <philip@wildfiregames.com>
Date: Mon, 9 Aug 2004 20:58:32 +0000
Subject: [PATCH] Allow the standard Windows PrtSc action (i.e. copy to
 clipboard) if HOTKEY_SCREENSHOT has been redefined

This was SVN commit r951.
---
 source/lib/sysdep/win/wsdl.cpp | 20 +++++++++++++-------
 source/ps/Hotkey.cpp           | 12 ++++++++++++
 source/ps/Hotkey.h             |  2 ++
 3 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/source/lib/sysdep/win/wsdl.cpp b/source/lib/sysdep/win/wsdl.cpp
index ca967dd5e0..a488ccf806 100755
--- a/source/lib/sysdep/win/wsdl.cpp
+++ b/source/lib/sysdep/win/wsdl.cpp
@@ -35,6 +35,7 @@
 #include "win_internal.h"
 
 #include "SDL_vkeys.h"
+#include "ps/Hotkey.h"
 
 #include <assert.h>
 #include <stdio.h>
@@ -446,14 +447,19 @@ LRESULT CALLBACK keyboard_ll_hook(int nCode, WPARAM wParam, LPARAM lParam)
 		// replace Windows PrintScreen handler
 		if(vk == VK_SNAPSHOT)
 		{
-			// send to wndproc
-			UINT msg = (UINT)wParam;
-			PostMessage(hWnd, msg, vk, 0);
-				// specify hWnd to be safe.
-				// if window not yet created, it's INVALID_HANDLE_VALUE.
+			// check whether PrintScreen should be taking screenshots -- if
+			// not, allow the standard Windows clipboard to work
+			if(keyRespondsTo(HOTKEY_SCREENSHOT, SDLK_PRINT))
+			{
+				// send to wndproc
+				UINT msg = (UINT)wParam;
+				PostMessage(hWnd, msg, vk, 0);
+					// specify hWnd to be safe.
+					// if window not yet created, it's INVALID_HANDLE_VALUE.
 
-			// don't pass it on to other handlers
-			return 1;
+				// don't pass it on to other handlers
+				return 1;
+			}
 		}
 	}
 
diff --git a/source/ps/Hotkey.cpp b/source/ps/Hotkey.cpp
index 13413f0006..0b8637008b 100755
--- a/source/ps/Hotkey.cpp
+++ b/source/ps/Hotkey.cpp
@@ -478,3 +478,15 @@ int hotkeyInputHandler( const SDL_Event* ev )
 	}
 	return( EV_PASS );
 }
+
+
+// Returns true if the specified HOTKEY_* responds to the specified SDLK_*
+// (mainly for the screenshot system to know whether it needs to override
+// the printscreen screen). Ignores modifier keys.
+bool keyRespondsTo( int hotkey, int sdlkey )
+{
+	for (KeyMapping::iterator it = hotkeyMap[sdlkey].begin(); it != hotkeyMap[sdlkey].end(); ++it)
+		if (it->mapsTo == hotkey)
+			return true;
+	return false;
+}
diff --git a/source/ps/Hotkey.h b/source/ps/Hotkey.h
index a199c587b0..8dcee61d0d 100755
--- a/source/ps/Hotkey.h
+++ b/source/ps/Hotkey.h
@@ -102,4 +102,6 @@ void initKeyNameMap();
 CStr getKeyName( int keycode );
 int getKeyCode( CStr keyname );
 
+bool keyRespondsTo( int hotkey, int sdlkey );
+
 extern bool hotkeys[HOTKEY_LAST];