19 files changed, 459 insertions, 362 deletions

diff --git a/indra/llwindow/CMakeLists.txt b/indra/llwindow/CMakeLists.txt
index e1f7406287..f5d06b7258 100644
--- a/indra/llwindow/CMakeLists.txt
+++ b/indra/llwindow/CMakeLists.txt
@@ -37,7 +37,7 @@ set(llwindow_SOURCE_FILES
     llwindowheadless.cpp
     )
 
-set(llwindows_HEADER_FILES
+set(llwindow_HEADER_FILES
     CMakeLists.txt
 
     llkeyboard.h
@@ -47,10 +47,12 @@ set(llwindows_HEADER_FILES
 set(viewer_SOURCE_FILES
     llwindow.cpp
     llmousehandler.cpp
+    llwindowcallbacks.cpp
     )
 
 set(viewer_HEADER_FILES
     llwindow.h
+    llwindowcallbacks.h
     llpreeditor.h
     llmousehandler.h
     )
@@ -143,7 +145,7 @@ if (SERVER AND NOT WINDOWS AND NOT DARWIN)
     ${llwindow_SOURCE_FILES}
     ${server_SOURCE_FILES}
     )
-  # *TODO: This should probably have target_link_libraries
+  target_link_libraries (llwindowheadless ${llwindow_LINK_LIBRARIES})
 endif (SERVER AND NOT WINDOWS AND NOT DARWIN)
 
 if (llwindow_HEADER_FILES)
diff --git a/indra/llwindow/lldxhardware.cpp b/indra/llwindow/lldxhardware.cpp
index beab131856..d33a0a6eea 100644
--- a/indra/llwindow/lldxhardware.cpp
+++ b/indra/llwindow/lldxhardware.cpp
@@ -47,6 +47,7 @@
 
 #include "llstring.h"
 #include "llstl.h"
+#include "lltimer.h"
 
 void (*gWriteDebug)(const char* msg) = NULL;
 LLDXHardware gDXHardware;
diff --git a/indra/llwindow/llkeyboard.cpp b/indra/llwindow/llkeyboard.cpp
index 02b4ed17c2..f0f618aef1 100644
--- a/indra/llwindow/llkeyboard.cpp
+++ b/indra/llwindow/llkeyboard.cpp
@@ -34,7 +34,7 @@
 #include "indra_constants.h"
 #include "llkeyboard.h"
 
-#include "llwindow.h"
+#include "llwindowcallbacks.h"
 
 
 //
diff --git a/indra/llwindow/llkeyboardmacosx.cpp b/indra/llwindow/llkeyboardmacosx.cpp
index ec82032161..f53773c393 100644
--- a/indra/llwindow/llkeyboardmacosx.cpp
+++ b/indra/llwindow/llkeyboardmacosx.cpp
@@ -34,7 +34,7 @@
 
 #include "linden_common.h"
 #include "llkeyboardmacosx.h"
-#include "llwindow.h"
+#include "llwindowcallbacks.h"
 
 #include <Carbon/Carbon.h>
 
diff --git a/indra/llwindow/llkeyboardsdl.cpp b/indra/llwindow/llkeyboardsdl.cpp
index 8a6b6d6298..8a0b1de98c 100644
--- a/indra/llwindow/llkeyboardsdl.cpp
+++ b/indra/llwindow/llkeyboardsdl.cpp
@@ -34,7 +34,7 @@
 
 #include "linden_common.h"
 #include "llkeyboardsdl.h"
-#include "llwindow.h"
+#include "llwindowcallbacks.h"
 #include "SDL/SDL.h"
 
 LLKeyboardSDL::LLKeyboardSDL()
diff --git a/indra/llwindow/llkeyboardwin32.cpp b/indra/llwindow/llkeyboardwin32.cpp
index a06f19149c..ea11e0537e 100644
--- a/indra/llwindow/llkeyboardwin32.cpp
+++ b/indra/llwindow/llkeyboardwin32.cpp
@@ -34,14 +34,16 @@
 
 #include "linden_common.h"
 
-#include "llkeyboardwin32.h"
-
-#include "llwindow.h"
-
 #define WIN32_LEAN_AND_MEAN
 #include <winsock2.h>
 #include <windows.h>
 
+#include "llkeyboardwin32.h"
+
+#include "llwindowcallbacks.h"
+
+
+
 LLKeyboardWin32::LLKeyboardWin32()
 {
 	// Set up key mapping for windows - eventually can read this from a file?
diff --git a/indra/llwindow/llpreeditor.h b/indra/llwindow/llpreeditor.h
index 370f76cb85..dd63a98606 100644
--- a/indra/llwindow/llpreeditor.h
+++ b/indra/llwindow/llpreeditor.h
@@ -94,7 +94,7 @@ public:
 	// Get the contents of this preeditor as a LLWString.  If there is an active preedit,
 	// the returned LLWString contains it.
 
-	virtual const LLWString & getWText() const = 0;
+	virtual LLWString getWText() const = 0;
 
 	// Handle a UTF-32 char on this preeditor, i.e., add the character
 	// to the contents.
diff --git a/indra/llwindow/llwindow.cpp b/indra/llwindow/llwindow.cpp
index 7e412a14de..1c6c9e6e9d 100644
--- a/indra/llwindow/llwindow.cpp
+++ b/indra/llwindow/llwindow.cpp
@@ -46,14 +46,12 @@
 #include "llerror.h"
 #include "llkeyboard.h"
 #include "linked_lists.h"
+#include "llwindowcallbacks.h"
 
-//static instance for default callbacks
-LLWindowCallbacks	LLWindow::sDefaultCallbacks;
 
 //
-// LLWindowCallbacks
+// Globals
 //
-
 LLSplashScreen *gSplashScreenp = NULL;
 BOOL gDebugClicks = FALSE;
 BOOL gDebugWindowProc = FALSE;
@@ -67,158 +65,6 @@ const std::string gURLProtocolWhitelist[] = { "file:", "http:", "https:" };
 //     Important - these lists should match - protocol to handler
 const std::string gURLProtocolWhitelistHandler[] = { "http", "http", "https" };	
 
-BOOL LLWindowCallbacks::handleTranslatedKeyDown(const KEY key, const MASK mask, BOOL repeated)
-{
-	return FALSE;
-}
-
-
-BOOL LLWindowCallbacks::handleTranslatedKeyUp(const KEY key, const MASK mask)
-{
-	return FALSE;
-}
-
-void LLWindowCallbacks::handleScanKey(KEY key, BOOL key_down, BOOL key_up, BOOL key_level)
-{
-}
-
-BOOL LLWindowCallbacks::handleUnicodeChar(llwchar uni_char, MASK mask)
-{
-	return FALSE;
-}
-
-
-BOOL LLWindowCallbacks::handleMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-void LLWindowCallbacks::handleMouseLeave(LLWindow *window)
-{
-	return;
-}
-
-BOOL LLWindowCallbacks::handleCloseRequest(LLWindow *window)
-{
-	//allow the window to close
-	return TRUE;
-}
-
-void LLWindowCallbacks::handleQuit(LLWindow *window)
-{
-	if(LLWindowManager::destroyWindow(window) == FALSE)	
-	{
-		llerrs << "LLWindowCallbacks::handleQuit() : Couldn't destroy window" << llendl;
-	}
-}
-
-BOOL LLWindowCallbacks::handleRightMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleRightMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleMiddleMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleMiddleMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleActivate(LLWindow *window, BOOL activated)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleActivateApp(LLWindow *window, BOOL activating)
-{
-	return FALSE;
-}
-
-void LLWindowCallbacks::handleMouseMove(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-}
-
-void LLWindowCallbacks::handleScrollWheel(LLWindow *window, S32 clicks)
-{
-}
-
-void LLWindowCallbacks::handleResize(LLWindow *window, const S32 width, const S32 height)
-{
-}
-
-void LLWindowCallbacks::handleFocus(LLWindow *window)
-{
-}
-
-void LLWindowCallbacks::handleFocusLost(LLWindow *window)
-{
-}
-
-void LLWindowCallbacks::handleMenuSelect(LLWindow *window, const S32 menu_item)
-{
-}
-
-BOOL LLWindowCallbacks::handlePaint(LLWindow *window, const S32 x, const S32 y, 
-									const S32 width, const S32 height)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleDoubleClick(LLWindow *window, const LLCoordGL pos, MASK mask)
-{
-	return FALSE;
-}
-
-void LLWindowCallbacks::handleWindowBlock(LLWindow *window)
-{
-}
-
-void LLWindowCallbacks::handleWindowUnblock(LLWindow *window)
-{
-}
-
-void LLWindowCallbacks::handleDataCopy(LLWindow *window, S32 data_type, void *data)
-{
-}
-
-BOOL LLWindowCallbacks::handleTimerEvent(LLWindow *window)
-{
-	return FALSE;
-}
-
-BOOL LLWindowCallbacks::handleDeviceChange(LLWindow *window)
-{
-	return FALSE;
-}
-
-void LLWindowCallbacks::handlePingWatchdog(LLWindow *window, const char * msg)
-{
-
-}
-
-void LLWindowCallbacks::handlePauseWatchdog(LLWindow *window)
-{
-
-}
-
-void LLWindowCallbacks::handleResumeWatchdog(LLWindow *window)
-{
-
-}
-
 
 S32 OSMessageBox(const std::string& text, const std::string& caption, U32 type)
 {
@@ -257,8 +103,8 @@ S32 OSMessageBox(const std::string& text, const std::string& caption, U32 type)
 // LLWindow
 //
 
-LLWindow::LLWindow(BOOL fullscreen, U32 flags)
-	: mCallbacks(&sDefaultCallbacks),
+LLWindow::LLWindow(LLWindowCallbacks* callbacks, BOOL fullscreen, U32 flags)
+	: mCallbacks(callbacks),
 	  mPostQuit(TRUE),
 	  mFullscreen(fullscreen),
 	  mFullscreenWidth(0),
@@ -275,9 +121,23 @@ LLWindow::LLWindow(BOOL fullscreen, U32 flags)
 	  mHideCursorPermanent(FALSE),
 	  mFlags(flags),
 	  mHighSurrogate(0)
+{ }
+
+LLWindow::~LLWindow()
+{ }
+
+//virtual
+BOOL LLWindow::isValid()
 {
+	return TRUE;
 }
-	
+
+//virtual
+BOOL LLWindow::canDelete()
+{
+	return TRUE;
+}
+
 // virtual
 void LLWindow::incBusyCount()
 {
@@ -293,13 +153,28 @@ void LLWindow::decBusyCount()
 	}
 }
 
-void LLWindow::setCallbacks(LLWindowCallbacks *callbacks)
+//virtual
+void LLWindow::resetBusyCount()
 {
-	mCallbacks = callbacks;
-	if (gKeyboard)
-	{
-		gKeyboard->setCallbacks(callbacks);
-	}
+	mBusyCount = 0;
+}
+
+//virtual
+S32 LLWindow::getBusyCount() const
+{
+	return mBusyCount;
+}
+
+//virtual
+ECursorType LLWindow::getCursor() const
+{
+	return mCurrentCursor;
+}
+
+//virtual
+BOOL LLWindow::dialogColorPicker(F32 *r, F32 *g, F32 *b)
+{
+	return FALSE;
 }
 
 void *LLWindow::getMediaWindow()
@@ -462,23 +337,7 @@ void LLSplashScreen::hide()
 static std::set<LLWindow*> sWindowList;
 
 LLWindow* LLWindowManager::createWindow(
-	const std::string& title,
-	const std::string& name,
-	LLCoordScreen upper_left,
-	LLCoordScreen size,
-	U32 flags,
-	BOOL fullscreen, 
-	BOOL clearBg,
-	BOOL disable_vsync,
-	BOOL use_gl,
-	BOOL ignore_pixel_depth)
-{
-	return createWindow(
-		title, name, upper_left.mX, upper_left.mY, size.mX, size.mY, flags, 
-		fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth);
-}
-
-LLWindow* LLWindowManager::createWindow(
+	LLWindowCallbacks* callbacks,
 	const std::string& title, const std::string& name, S32 x, S32 y, S32 width, S32 height, U32 flags,
 	BOOL fullscreen, 
 	BOOL clearBg,
@@ -492,26 +351,26 @@ LLWindow* LLWindowManager::createWindow(
 	if (use_gl)
 	{
 #if LL_MESA_HEADLESS
-		new_window = new LLWindowMesaHeadless(
+		new_window = new LLWindowMesaHeadless(callbacks,
 			title, name, x, y, width, height, flags, 
 			fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth);
 #elif LL_SDL
-		new_window = new LLWindowSDL(
+		new_window = new LLWindowSDL(callbacks,
 			title, x, y, width, height, flags, 
 			fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth, fsaa_samples);
 #elif LL_WINDOWS
-		new_window = new LLWindowWin32(
+		new_window = new LLWindowWin32(callbacks,
 			title, name, x, y, width, height, flags, 
 			fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth, fsaa_samples);
 #elif LL_DARWIN
-		new_window = new LLWindowMacOSX(
+		new_window = new LLWindowMacOSX(callbacks,
 			title, name, x, y, width, height, flags, 
 			fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth, fsaa_samples);
 #endif
 	}
 	else
 	{
-		new_window = new LLWindowHeadless(
+		new_window = new LLWindowHeadless(callbacks,
 			title, name, x, y, width, height, flags, 
 			fullscreen, clearBg, disable_vsync, use_gl, ignore_pixel_depth);
 	}
diff --git a/indra/llwindow/llwindow.h b/indra/llwindow/llwindow.h
index 8361771b66..8602225108 100644
--- a/indra/llwindow/llwindow.h
+++ b/indra/llwindow/llwindow.h
@@ -39,52 +39,8 @@
 #include "llcursortypes.h"
 
 class LLSplashScreen;
-
-class LLWindow;
-
 class LLPreeditor;
-
-class LLWindowCallbacks
-{
-public:
-	virtual ~LLWindowCallbacks() {}
-	virtual BOOL handleTranslatedKeyDown(KEY key,  MASK mask, BOOL repeated);
-	virtual BOOL handleTranslatedKeyUp(KEY key,  MASK mask);
-	virtual void handleScanKey(KEY key, BOOL key_down, BOOL key_up, BOOL key_level);
-	virtual BOOL handleUnicodeChar(llwchar uni_char, MASK mask);
-
-	virtual BOOL handleMouseDown(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual BOOL handleMouseUp(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual void handleMouseLeave(LLWindow *window);
-	// return TRUE to allow window to close, which will then cause handleQuit to be called
-	virtual BOOL handleCloseRequest(LLWindow *window);
-	// window is about to be destroyed, clean up your business
-	virtual void handleQuit(LLWindow *window);
-	virtual BOOL handleRightMouseDown(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual BOOL handleRightMouseUp(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual BOOL handleMiddleMouseDown(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual BOOL handleMiddleMouseUp(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual BOOL handleActivate(LLWindow *window, BOOL activated);
-	virtual BOOL handleActivateApp(LLWindow *window, BOOL activating);
-	virtual void handleMouseMove(LLWindow *window,  LLCoordGL pos, MASK mask);
-	virtual void handleScrollWheel(LLWindow *window,  S32 clicks);
-	virtual void handleResize(LLWindow *window,  S32 width,  S32 height);
-	virtual void handleFocus(LLWindow *window);
-	virtual void handleFocusLost(LLWindow *window);
-	virtual void handleMenuSelect(LLWindow *window,  S32 menu_item);
-	virtual BOOL handlePaint(LLWindow *window,  S32 x,  S32 y,  S32 width,  S32 height);
-	virtual BOOL handleDoubleClick(LLWindow *window,  LLCoordGL pos, MASK mask);			// double-click of left mouse button
-	virtual void handleWindowBlock(LLWindow *window);							// window is taking over CPU for a while
-	virtual void handleWindowUnblock(LLWindow *window);							// window coming back after taking over CPU for a while
-	virtual void handleDataCopy(LLWindow *window, S32 data_type, void *data);
-	virtual BOOL handleTimerEvent(LLWindow *window);
-	virtual BOOL handleDeviceChange(LLWindow *window);
-
-	virtual void handlePingWatchdog(LLWindow *window, const char * msg);
-	virtual void handlePauseWatchdog(LLWindow *window);
-	virtual void handleResumeWatchdog(LLWindow *window);
-
-};
+class LLWindowCallbacks;
 
 // Refer to llwindow_test in test/common/llwindow for usage example
 
@@ -134,12 +90,12 @@ public:
 	// arrow/hour if busycount > 0.
 	virtual void incBusyCount();
 	virtual void decBusyCount();
-	virtual void resetBusyCount() { mBusyCount = 0; }
-	virtual S32 getBusyCount() const { return mBusyCount; }
+	virtual void resetBusyCount();
+	virtual S32 getBusyCount() const;
 
 	// Sets cursor, may set to arrow+hourglass
 	virtual void setCursor(ECursorType cursor) = 0;
-	virtual ECursorType getCursor() const { return mCurrentCursor; }
+	virtual ECursorType getCursor() const;
 
 	virtual void captureMouse() = 0;
 	virtual void releaseMouse() = 0;
@@ -183,13 +139,12 @@ public:
 	virtual F32 getPixelAspectRatio() = 0;
 	virtual void setNativeAspectRatio(F32 aspect) = 0;
 	
-	void setCallbacks(LLWindowCallbacks *callbacks);
-
 	virtual void beforeDialog() {};	// prepare to put up an OS dialog (if special measures are required, such as in fullscreen mode)
 	virtual void afterDialog() {};	// undo whatever was done in beforeDialog()
 
-// opens system default color picker
-	virtual BOOL dialog_color_picker (F32 *r, F32 *g, F32 *b) { return FALSE; };
+	// opens system default color picker, modally
+	// Returns TRUE if valid color selected
+	virtual BOOL dialogColorPicker(F32 *r, F32 *g, F32 *b);
 
 // return a platform-specific window reference (HWND on Windows, WindowRef on the Mac, Gtk window on Linux)
 	virtual void *getPlatformWindow() = 0;
@@ -207,12 +162,12 @@ public:
 	static std::vector<std::string> getDynamicFallbackFontList();
 
 protected:
-	LLWindow(BOOL fullscreen, U32 flags);
-	virtual ~LLWindow() {}
-	virtual BOOL isValid() {return TRUE;}
-	virtual BOOL canDelete() {return TRUE;}
-protected:
-	static LLWindowCallbacks	sDefaultCallbacks;
+	LLWindow(LLWindowCallbacks* callbacks, BOOL fullscreen, U32 flags);
+	virtual ~LLWindow();
+	// Defaults to true
+	virtual BOOL isValid();
+	// Defaults to true
+	virtual BOOL canDelete();
 
 protected:
 	LLWindowCallbacks*	mCallbacks;
@@ -294,18 +249,8 @@ const S32 OSBTN_CANCEL = 3;
 class LLWindowManager
 {
 public:
-	static LLWindow* createWindow(
-		const std::string& title,
-		const std::string& name,
-		LLCoordScreen upper_left = LLCoordScreen(10, 10),
-		LLCoordScreen size = LLCoordScreen(320, 240),
-		U32 flags = 0,
-		BOOL fullscreen = FALSE,
-		BOOL clearBg = FALSE,
-		BOOL disable_vsync = TRUE,
-		BOOL use_gl = TRUE,
-		BOOL ignore_pixel_depth = FALSE);
 	static LLWindow *createWindow(
+		LLWindowCallbacks* callbacks,
 		const std::string& title, const std::string& name, S32 x, S32 y, S32 width, S32 height,
 		U32 flags = 0,
 		BOOL fullscreen = FALSE,
diff --git a/indra/llwindow/llwindowcallbacks.cpp b/indra/llwindow/llwindowcallbacks.cpp
new file mode 100644
index 0000000000..72f9997149
--- /dev/null
+++ b/indra/llwindow/llwindowcallbacks.cpp
@@ -0,0 +1,201 @@
+/** 
+ * @file llwindowcallbacks.cpp
+ * @brief OS event callback class
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llwindowcallbacks.h"
+
+#include "llcoord.h"
+
+//
+// LLWindowCallbacks
+//
+
+BOOL LLWindowCallbacks::handleTranslatedKeyDown(const KEY key, const MASK mask, BOOL repeated)
+{
+	return FALSE;
+}
+
+
+BOOL LLWindowCallbacks::handleTranslatedKeyUp(const KEY key, const MASK mask)
+{
+	return FALSE;
+}
+
+void LLWindowCallbacks::handleScanKey(KEY key, BOOL key_down, BOOL key_up, BOOL key_level)
+{
+}
+
+BOOL LLWindowCallbacks::handleUnicodeChar(llwchar uni_char, MASK mask)
+{
+	return FALSE;
+}
+
+
+BOOL LLWindowCallbacks::handleMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+void LLWindowCallbacks::handleMouseLeave(LLWindow *window)
+{
+	return;
+}
+
+BOOL LLWindowCallbacks::handleCloseRequest(LLWindow *window)
+{
+	//allow the window to close
+	return TRUE;
+}
+
+void LLWindowCallbacks::handleQuit(LLWindow *window)
+{
+}
+
+BOOL LLWindowCallbacks::handleRightMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleRightMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleMiddleMouseDown(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleMiddleMouseUp(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleActivate(LLWindow *window, BOOL activated)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleActivateApp(LLWindow *window, BOOL activating)
+{
+	return FALSE;
+}
+
+void LLWindowCallbacks::handleMouseMove(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+}
+
+void LLWindowCallbacks::handleScrollWheel(LLWindow *window, S32 clicks)
+{
+}
+
+void LLWindowCallbacks::handleResize(LLWindow *window, const S32 width, const S32 height)
+{
+}
+
+void LLWindowCallbacks::handleFocus(LLWindow *window)
+{
+}
+
+void LLWindowCallbacks::handleFocusLost(LLWindow *window)
+{
+}
+
+void LLWindowCallbacks::handleMenuSelect(LLWindow *window, const S32 menu_item)
+{
+}
+
+BOOL LLWindowCallbacks::handlePaint(LLWindow *window, const S32 x, const S32 y, 
+									const S32 width, const S32 height)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleDoubleClick(LLWindow *window, const LLCoordGL pos, MASK mask)
+{
+	return FALSE;
+}
+
+void LLWindowCallbacks::handleWindowBlock(LLWindow *window)
+{
+}
+
+void LLWindowCallbacks::handleWindowUnblock(LLWindow *window)
+{
+}
+
+void LLWindowCallbacks::handleDataCopy(LLWindow *window, S32 data_type, void *data)
+{
+}
+
+BOOL LLWindowCallbacks::handleTimerEvent(LLWindow *window)
+{
+	return FALSE;
+}
+
+BOOL LLWindowCallbacks::handleDeviceChange(LLWindow *window)
+{
+	return FALSE;
+}
+
+void LLWindowCallbacks::handlePingWatchdog(LLWindow *window, const char * msg)
+{
+
+}
+
+void LLWindowCallbacks::handlePauseWatchdog(LLWindow *window)
+{
+
+}
+
+void LLWindowCallbacks::handleResumeWatchdog(LLWindow *window)
+{
+
+}
+
+std::string LLWindowCallbacks::translateString(const char* tag)
+{
+    return std::string();
+}
+
+//virtual
+std::string LLWindowCallbacks::translateString(const char* tag,
+		const std::map<std::string, std::string>& args)
+{
+	return std::string();
+}
diff --git a/indra/llwindow/llwindowcallbacks.h b/indra/llwindow/llwindowcallbacks.h
new file mode 100644
index 0000000000..abc66c42a2
--- /dev/null
+++ b/indra/llwindow/llwindowcallbacks.h
@@ -0,0 +1,85 @@
+/** 
+ * @file llwindowcallbacks.h
+ * @brief OS event callback class
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+#ifndef LLWINDOWCALLBACKS_H
+#define LLWINDOWCALLBACKS_H
+
+class LLCoordGL;
+class LLWindow;
+
+class LLWindowCallbacks
+{
+public:
+	virtual ~LLWindowCallbacks() {}
+	virtual BOOL handleTranslatedKeyDown(KEY key,  MASK mask, BOOL repeated);
+	virtual BOOL handleTranslatedKeyUp(KEY key,  MASK mask);
+	virtual void handleScanKey(KEY key, BOOL key_down, BOOL key_up, BOOL key_level);
+	virtual BOOL handleUnicodeChar(llwchar uni_char, MASK mask);
+
+	virtual BOOL handleMouseDown(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual BOOL handleMouseUp(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual void handleMouseLeave(LLWindow *window);
+	// return TRUE to allow window to close, which will then cause handleQuit to be called
+	virtual BOOL handleCloseRequest(LLWindow *window);
+	// window is about to be destroyed, clean up your business
+	virtual void handleQuit(LLWindow *window);
+	virtual BOOL handleRightMouseDown(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual BOOL handleRightMouseUp(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual BOOL handleMiddleMouseDown(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual BOOL handleMiddleMouseUp(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual BOOL handleActivate(LLWindow *window, BOOL activated);
+	virtual BOOL handleActivateApp(LLWindow *window, BOOL activating);
+	virtual void handleMouseMove(LLWindow *window,  LLCoordGL pos, MASK mask);
+	virtual void handleScrollWheel(LLWindow *window,  S32 clicks);
+	virtual void handleResize(LLWindow *window,  S32 width,  S32 height);
+	virtual void handleFocus(LLWindow *window);
+	virtual void handleFocusLost(LLWindow *window);
+	virtual void handleMenuSelect(LLWindow *window,  S32 menu_item);
+	virtual BOOL handlePaint(LLWindow *window,  S32 x,  S32 y,  S32 width,  S32 height);
+	virtual BOOL handleDoubleClick(LLWindow *window,  LLCoordGL pos, MASK mask);			// double-click of left mouse button
+	virtual void handleWindowBlock(LLWindow *window);							// window is taking over CPU for a while
+	virtual void handleWindowUnblock(LLWindow *window);							// window coming back after taking over CPU for a while
+	virtual void handleDataCopy(LLWindow *window, S32 data_type, void *data);
+	virtual BOOL handleTimerEvent(LLWindow *window);
+	virtual BOOL handleDeviceChange(LLWindow *window);
+
+	virtual void handlePingWatchdog(LLWindow *window, const char * msg);
+	virtual void handlePauseWatchdog(LLWindow *window);
+	virtual void handleResumeWatchdog(LLWindow *window);
+
+    // Look up a localized string, usually for an error message
+    virtual std::string translateString(const char* tag);
+	virtual std::string translateString(const char* tag,
+		const std::map<std::string, std::string>& args);
+};
+
+
+#endif
diff --git a/indra/llwindow/llwindowheadless.cpp b/indra/llwindow/llwindowheadless.cpp
index 3742846440..b4e9009321 100644
--- a/indra/llwindow/llwindowheadless.cpp
+++ b/indra/llwindow/llwindowheadless.cpp
@@ -38,10 +38,10 @@
 //
 // LLWindowHeadless
 //
-LLWindowHeadless::LLWindowHeadless(const std::string& title, const std::string& name, S32 x, S32 y, S32 width, S32 height,
-							 U32 flags,  BOOL fullscreen, BOOL clearBg,
+LLWindowHeadless::LLWindowHeadless(LLWindowCallbacks* callbacks, const std::string& title, const std::string& name, S32 x, S32 y, S32 width, S32 height,
+							 U32 flags,  BOOL fullscreen, BOOL clear_background,
 							 BOOL disable_vsync, BOOL use_gl, BOOL ignore_pixel_depth)
-	: LLWindow(fullscreen, flags)
+	: LLWindow(callbacks, fullscreen, flags)
 {
 }
 
diff --git a/indra/llwindow/llwindowheadless.h b/indra/llwindow/llwindowheadless.h
index 4353d157b5..3cffd2bbf6 100644
--- a/indra/llwindow/llwindowheadless.h
+++ b/indra/llwindow/llwindowheadless.h
@@ -94,9 +94,12 @@ public:
 	/*virtual*/ void *getPlatformWindow() { return 0; };
 	/*virtual*/ void bringToFront() {};
 	
-	LLWindowHeadless(const std::string& title, const std::string& name, S32 x, S32 y, S32 width, S32 height,
-				  U32 flags,  BOOL fullscreen, BOOL clearBg,
-				  BOOL disable_vsync, BOOL use_gl, BOOL ignore_pixel_depth);
+	LLWindowHeadless(LLWindowCallbacks* callbacks,
+		const std::string& title, const std::string& name,
+		S32 x, S32 y, 
+		S32 width, S32 height,
+		U32 flags,  BOOL fullscreen, BOOL clear_background,
+		BOOL disable_vsync, BOOL use_gl, BOOL ignore_pixel_depth);
 	virtual ~LLWindowHeadless();
 
 private:
diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index 65a40dcef4..82dc5e4a13 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -32,19 +32,21 @@
 
 #include "linden_common.h"
 
-#include <Carbon/Carbon.h>
-#include <OpenGL/OpenGL.h>
-
 #include "llwindowmacosx.h"
+
 #include "llkeyboardmacosx.h"
+#include "llwindowcallbacks.h"
+#include "llwindowmacosx-objc.h"
+#include "llpreeditor.h"
+
 #include "llerror.h"
 #include "llgl.h"
 #include "llstring.h"
 #include "lldir.h"
 #include "indra_constants.h"
 
-#include "llwindowmacosx-objc.h"
-#include "llpreeditor.h"
+#include <Carbon/Carbon.h>
+#include <OpenGL/OpenGL.h>
 
 extern BOOL gDebugWindowProc;
 
@@ -214,19 +216,27 @@ static LLWindowMacOSX *gWindowImplementation = NULL;
 
 
 
-LLWindowMacOSX::LLWindowMacOSX(const std::string& title, const std::string& name, S32 x, S32 y, S32 width,
+LLWindowMacOSX::LLWindowMacOSX(LLWindowCallbacks* callbacks,
+							   const std::string& title, const std::string& name, S32 x, S32 y, S32 width,
 							   S32 height, U32 flags,
 							   BOOL fullscreen, BOOL clearBg,
 							   BOOL disable_vsync, BOOL use_gl,
 							   BOOL ignore_pixel_depth,
 							   U32 fsaa_samples)
-	: LLWindow(fullscreen, flags)
+	: LLWindow(NULL, fullscreen, flags)
 {
+	// *HACK: During window construction we get lots of OS events for window
+	// reshape, activate, etc. that the viewer isn't ready to handle.
+	// Route them to a dummy callback structure until the end of constructor.
+	LLWindowCallbacks null_callbacks;
+	mCallbacks = &null_callbacks;
+	
 	// Voodoo for calling cocoa from carbon (see llwindowmacosx-objc.mm).
 	setupCocoa();
 	
 	// Initialize the keyboard
 	gKeyboard = new LLKeyboardMacOSX();
+	gKeyboard->setCallbacks(callbacks);
 
 	// Ignore use_gl for now, only used for drones on PC
 	mWindow = NULL;
@@ -315,6 +325,7 @@ LLWindowMacOSX::LLWindowMacOSX(const std::string& title, const std::string& name
 		setCursor( UI_CURSOR_ARROW );
 	}
 
+	mCallbacks = callbacks;
 	stop_glerror();
 }
 
@@ -3202,7 +3213,7 @@ void LLWindowMacOSX::spawnWebBrowser(const std::string& escaped_url)
 }
 
 
-BOOL LLWindowMacOSX::dialog_color_picker ( F32 *r, F32 *g, F32 *b)
+BOOL LLWindowMacOSX::dialogColorPicker( F32 *r, F32 *g, F32 *b)
 {
 	BOOL	retval = FALSE;
 	OSErr	error = noErr;
diff --git a/indra/llwindow/llwindowmacosx.h b/indra/llwindow/llwindowmacosx.h
index 3886782732..17074080eb 100644
--- a/indra/llwindow/llwindowmacosx.h
+++ b/indra/llwindow/llwindowmacosx.h
@@ -35,6 +35,8 @@
 
 #include "llwindow.h"
 
+#include "lltimer.h"
+
 #include <Carbon/Carbon.h>
 #include <AGL/agl.h>
 
@@ -103,7 +105,7 @@ public:
 	/*virtual*/ void beforeDialog();
 	/*virtual*/ void afterDialog();
 
-	/*virtual*/ BOOL dialog_color_picker(F32 *r, F32 *g, F32 *b);
+	/*virtual*/ BOOL dialogColorPicker(F32 *r, F32 *g, F32 *b);
 
 	/*virtual*/ void *getPlatformWindow();
 	/*virtual*/ void *getMediaWindow();
@@ -116,7 +118,7 @@ public:
 	static std::vector<std::string> getDynamicFallbackFontList();
 
 protected:
-	LLWindowMacOSX(
+	LLWindowMacOSX(LLWindowCallbacks* callbacks,
 		const std::string& title, const std::string& name, int x, int y, int width, int height, U32 flags,
 		BOOL fullscreen, BOOL clearBg, BOOL disable_vsync, BOOL use_gl,
 		BOOL ignore_pixel_depth,
diff --git a/indra/llwindow/llwindowsdl.cpp b/indra/llwindow/llwindowsdl.cpp
index 24bd70d57f..3c203d9f5c 100644
--- a/indra/llwindow/llwindowsdl.cpp
+++ b/indra/llwindow/llwindowsdl.cpp
@@ -36,15 +36,16 @@
 #include "linden_common.h"
 
 #include "llwindowsdl.h"
+
+#include "llwindowcallbacks.h"
 #include "llkeyboardsdl.h"
+
 #include "llerror.h"
 #include "llgl.h"
 #include "llstring.h"
 #include "lldir.h"
 #include "llfindlocale.h"
 
-#include "indra_constants.h"
-
 #if LL_GTK
 extern "C" {
 # include "gtk/gtk.h"
@@ -187,16 +188,19 @@ Display* LLWindowSDL::get_SDL_Display(void)
 #endif // LL_X11
 
 
-LLWindowSDL::LLWindowSDL(const std::string& title, S32 x, S32 y, S32 width,
+LLWindowSDL::LLWindowSDL(LLWindowCallbacks* callbacks,
+			 const std::string& title, S32 x, S32 y, S32 width,
 			 S32 height, U32 flags,
 			 BOOL fullscreen, BOOL clearBg,
 			 BOOL disable_vsync, BOOL use_gl,
 			 BOOL ignore_pixel_depth, U32 fsaa_samples)
-	: LLWindow(fullscreen, flags), Lock_Display(NULL),
+	: LLWindow(callbacks, fullscreen, flags),
+	  Lock_Display(NULL),
 	  Unlock_Display(NULL), mGamma(1.0f)
 {
 	// Initialize the keyboard
 	gKeyboard = new LLKeyboardSDL();
+	gKeyboard->setCallbacks(callbacks);
 	// Note that we can't set up key-repeat until after SDL has init'd video
 
 	// Ignore use_gl for now, only used for drones on PC
@@ -2229,7 +2233,7 @@ static void color_changed_callback(GtkWidget *widget,
 	gtk_color_selection_get_current_color(colorsel, colorp);
 }
 
-BOOL LLWindowSDL::dialog_color_picker ( F32 *r, F32 *g, F32 *b)
+BOOL LLWindowSDL::dialogColorPicker( F32 *r, F32 *g, F32 *b)
 {
 	BOOL rtn = FALSE;
 
@@ -2306,7 +2310,7 @@ S32 OSMessageBoxSDL(const std::string& text, const std::string& caption, U32 typ
 	return 0;
 }
 
-BOOL LLWindowSDL::dialog_color_picker ( F32 *r, F32 *g, F32 *b)
+BOOL LLWindowSDL::dialogColorPicker( F32 *r, F32 *g, F32 *b)
 {
 	return (FALSE);
 }
diff --git a/indra/llwindow/llwindowsdl.h b/indra/llwindow/llwindowsdl.h
index 632d8fc1fa..1e4dffd7a6 100644
--- a/indra/llwindow/llwindowsdl.h
+++ b/indra/llwindow/llwindowsdl.h
@@ -36,6 +36,7 @@
 // Simple Directmedia Layer (http://libsdl.org/) implementation of LLWindow class
 
 #include "llwindow.h"
+#include "lltimer.h"
 
 #include "SDL/SDL.h"
 #include "SDL/SDL_endian.h"
@@ -118,7 +119,7 @@ public:
 	/*virtual*/ void beforeDialog();
 	/*virtual*/ void afterDialog();
 
-	/*virtual*/ BOOL dialog_color_picker(F32 *r, F32 *g, F32 *b);
+	/*virtual*/ BOOL dialogColorPicker(F32 *r, F32 *g, F32 *b);
 
 	/*virtual*/ void *getPlatformWindow();
 	/*virtual*/ void bringToFront();
@@ -147,7 +148,7 @@ public:
 #endif // LL_X11	
 
 protected:
-	LLWindowSDL(
+	LLWindowSDL(LLWindowCallbacks* callbacks,
 		const std::string& title, int x, int y, int width, int height, U32 flags,
 		BOOL fullscreen, BOOL clearBg, BOOL disable_vsync, BOOL use_gl,
 		BOOL ignore_pixel_depth, U32 fsaa_samples);
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index 6280868dfb..b60740c7e4 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -36,6 +36,17 @@
 
 #include "llwindowwin32.h"
 
+// LLWindow library includes
+#include "llkeyboardwin32.h"
+#include "llpreeditor.h"
+#include "llwindowcallbacks.h"
+
+// Linden library includes
+#include "llerror.h"
+#include "llgl.h"
+#include "llstring.h"
+
+// System includes
 #include <commdlg.h>
 #include <WinUser.h>
 #include <mapi.h>
@@ -49,16 +60,6 @@
 #include <dinput.h>
 #include <Dbt.h.>
 
-#include "llkeyboardwin32.h"
-#include "llerror.h"
-#include "llgl.h"
-#include "llstring.h"
-#include "lldir.h"
-
-#include "indra_constants.h"
-
-#include "llpreeditor.h"
-
 // culled from winuser.h
 #ifndef WM_MOUSEWHEEL /* Added to be compatible with later SDK's */
 const S32	WM_MOUSEWHEEL = 0x020A;
@@ -358,13 +359,14 @@ LLWinImm::~LLWinImm()
 }
 
 
-LLWindowWin32::LLWindowWin32(const std::string& title, const std::string& name, S32 x, S32 y, S32 width,
+LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks,
+							 const std::string& title, const std::string& name, S32 x, S32 y, S32 width,
 							 S32 height, U32 flags, 
 							 BOOL fullscreen, BOOL clearBg,
 							 BOOL disable_vsync, BOOL use_gl,
 							 BOOL ignore_pixel_depth,
 							 U32 fsaa_samples)
-	: LLWindow(fullscreen, flags)
+	: LLWindow(callbacks, fullscreen, flags)
 {
 	mFSAASamples = fsaa_samples;
 	mIconResource = gIconResource;
@@ -378,6 +380,7 @@ LLWindowWin32::LLWindowWin32(const std::string& title, const std::string& name,
 
 	// Initialize the keyboard
 	gKeyboard = new LLKeyboardWin32();
+	gKeyboard->setCallbacks(callbacks);
 
 	// Initialize (boot strap) the Language text input management,
 	// based on the system's (user's) default settings.
@@ -481,7 +484,8 @@ LLWindowWin32::LLWindowWin32(const std::string& title, const std::string& name,
 
 		if (!RegisterClass(&wc))
 		{
-			OSMessageBox("RegisterClass failed", "Error", OSMB_OK);
+			OSMessageBox(mCallbacks->translateString("MBRegClassFailed"), 
+				mCallbacks->translateString("MBError"), OSMB_OK);
 			return;
 		}
 		sIsClassRegistered = TRUE;
@@ -572,8 +576,11 @@ LLWindowWin32::LLWindowWin32(const std::string& title, const std::string& name,
 			mFullscreenBits    = -1;
 			mFullscreenRefresh = -1;
 
-			std::string error = llformat("Unable to run fullscreen at %d x %d.\nRunning in window.", width, height);
-			OSMessageBox(error, "Error", OSMB_OK);
+			std::map<std::string,std::string> args;
+			args["[WIDTH]"] = llformat("%d", width);
+			args["[HEIGHT]"] = llformat ("%d", height);
+			OSMessageBox(mCallbacks->translateString("MBFullScreenErr", args),
+				mCallbacks->translateString("MBError"), OSMB_OK);
 		}
 	}
 
@@ -712,7 +719,9 @@ void LLWindowWin32::close()
 	// This causes WM_DESTROY to be sent *immediately*
 	if (!DestroyWindow(mWindowHandle))
 	{
-		OSMessageBox("DestroyWindow(mWindowHandle) failed", "Shutdown Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBDestroyWinFailed"),
+			mCallbacks->translateString("MBShutdownErr"),
+			OSMB_OK);
 	}
 
 	mWindowHandle = NULL;
@@ -1015,14 +1024,16 @@ BOOL LLWindowWin32::switchContext(BOOL fullscreen, const LLCoordScreen &size, BO
 	if (!(mhDC = GetDC(mWindowHandle)))
 	{
 		close();
-		OSMessageBox("Can't make GL device context", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBDevContextErr"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!(pixel_format = ChoosePixelFormat(mhDC, &pfd)))
 	{
 		close();
-		OSMessageBox("Can't find suitable pixel format", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBPixelFmtErr"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
@@ -1031,57 +1042,48 @@ BOOL LLWindowWin32::switchContext(BOOL fullscreen, const LLCoordScreen &size, BO
 		&pfd))
 	{
 		close();
-		OSMessageBox("Can't get pixel format description", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBPixelFmtDescErr"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (pfd.cColorBits < 32)
 	{
 		close();
-		OSMessageBox(
-			"Second Life requires True Color (32-bit) to run in a window.\n"
-			"Please go to Control Panels -> Display -> Settings and\n"
-			"set the screen to 32-bit color.\n"
-			"Alternately, if you choose to run fullscreen, Second Life\n"
-			"will automatically adjust the screen each time it runs.",
-			"Error",
-			OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBTrueColorWindow"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (pfd.cAlphaBits < 8)
 	{
 		close();
-		OSMessageBox(
-			"Second Life is unable to run because it can't get an 8 bit alpha\n"
-			"channel.  Usually this is due to video card driver issues.\n"
-			"Please make sure you have the latest video card drivers installed.\n"
-			"Also be sure your monitor is set to True Color (32-bit) in\n"
-			"Control Panels -> Display -> Settings.\n"
-			"If you continue to receive this message, contact customer service.",
-			"Error",
-			OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBAlpha"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!SetPixelFormat(mhDC, pixel_format, &pfd))
 	{
 		close();
-		OSMessageBox("Can't set pixel format", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBPixelFmtSetErr"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!(mhRC = wglCreateContext(mhDC)))
 	{
 		close();
-		OSMessageBox("Can't create GL rendering context", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBGLContextErr"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!wglMakeCurrent(mhDC, mhRC))
 	{
 		close();
-		OSMessageBox("Can't activate GL rendering context", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBGLContextActErr"),
+			mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
@@ -1243,14 +1245,15 @@ BOOL LLWindowWin32::switchContext(BOOL fullscreen, const LLCoordScreen &size, BO
 		if (!(mhDC = GetDC(mWindowHandle)))
 		{
 			close();
-			OSMessageBox("Can't make GL device context", "Error", OSMB_OK);
+			OSMessageBox(mCallbacks->translateString("MBDevContextErr"), mCallbacks->translateString("MBError"), OSMB_OK);
 			return FALSE;
 		}
 
 		if (!SetPixelFormat(mhDC, pixel_format, &pfd))
 		{
 			close();
-			OSMessageBox("Can't set pixel format", "Error", OSMB_OK);
+			OSMessageBox(mCallbacks->translateString("MBPixelFmtSetErr"),
+				mCallbacks->translateString("MBError"), OSMB_OK);
 			return FALSE;
 		}
 
@@ -1287,7 +1290,7 @@ BOOL LLWindowWin32::switchContext(BOOL fullscreen, const LLCoordScreen &size, BO
 		&pfd))
 	{
 		close();
-		OSMessageBox("Can't get pixel format description", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBPixelFmtDescErr"), mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
@@ -1300,57 +1303,35 @@ BOOL LLWindowWin32::switchContext(BOOL fullscreen, const LLCoordScreen &size, BO
 	if (pfd.cColorBits < 32 || GetDeviceCaps(mhDC, BITSPIXEL) < 32)
 	{
 		close();
-		OSMessageBox(
-			"Second Life requires True Color (32-bit) to run in a window.\n"
-			"Please go to Control Panels -> Display -> Settings and\n"
-			"set the screen to 32-bit color.\n"
-			"Alternately, if you choose to run fullscreen, Second Life\n"
-			"will automatically adjust the screen each time it runs.",
-			"Error",
-			OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBTrueColorWindow"), mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (pfd.cAlphaBits < 8)
 	{
 		close();
-		OSMessageBox(
-			"Second Life is unable to run because it can't get an 8 bit alpha\n"
-			"channel.  Usually this is due to video card driver issues.\n"
-			"Please make sure you have the latest video card drivers installed.\n"
-			"Also be sure your monitor is set to True Color (32-bit) in\n"
-			"Control Panels -> Display -> Settings.\n"
-			"If you continue to receive this message, contact customer service.",
-			"Error",
-			OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBAlpha"), mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!(mhRC = wglCreateContext(mhDC)))
 	{
 		close();
-		OSMessageBox("Can't create GL rendering context", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBGLContextErr"), mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!wglMakeCurrent(mhDC, mhRC))
 	{
 		close();
-		OSMessageBox("Can't activate GL rendering context", "Error", OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBGLContextActErr"), mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
 	if (!gGLManager.initGL())
 	{
 		close();
-		OSMessageBox(
-					 "Second Life is unable to run because your video card drivers\n"
-					 "did not install properly, are out of date, or are for unsupported\n" 
-					 "hardware. Please make sure you have the latest video card drivers\n"
-					 "and even if you do have the latest, try reinstalling them.\n\n"
-					 "If you continue to receive this message, contact customer service.",
-					 "Error",
-					 OSMB_OK);
+		OSMessageBox(mCallbacks->translateString("MBVideoDrvErr"), mCallbacks->translateString("MBError"), OSMB_OK);
 		return FALSE;
 	}
 
@@ -3030,7 +3011,7 @@ void LLWindowWin32::spawnWebBrowser(const std::string& escaped_url )
 }
 
 
-BOOL LLWindowWin32::dialog_color_picker ( F32 *r, F32 *g, F32 *b )
+BOOL LLWindowWin32::dialogColorPicker( F32 *r, F32 *g, F32 *b )
 {
 	BOOL retval = FALSE;
 
diff --git a/indra/llwindow/llwindowwin32.h b/indra/llwindow/llwindowwin32.h
index 237f834318..e14324c9f1 100644
--- a/indra/llwindow/llwindowwin32.h
+++ b/indra/llwindow/llwindowwin32.h
@@ -100,7 +100,7 @@ public:
 	/*virtual*/ F32 getPixelAspectRatio();
 	/*virtual*/ void setNativeAspectRatio(F32 ratio) { mOverrideAspectRatio = ratio; }
 
-	/*virtual*/	BOOL dialog_color_picker (F32 *r, F32 *g, F32 *b );
+	/*virtual*/	BOOL dialogColorPicker(F32 *r, F32 *g, F32 *b );
 
 	/*virtual*/ void *getPlatformWindow();
 	/*virtual*/ void bringToFront();
@@ -115,7 +115,7 @@ public:
 	static std::vector<std::string> getDynamicFallbackFontList();
 
 protected:
-	LLWindowWin32(
+	LLWindowWin32(LLWindowCallbacks* callbacks,
 		const std::string& title, const std::string& name, int x, int y, int width, int height, U32 flags, 
 		BOOL fullscreen, BOOL clearBg, BOOL disable_vsync, BOOL use_gl,
 		BOOL ignore_pixel_depth, U32 fsaa_samples);