From 05df4eff43eafb086142cd7c58fc174bd334a6ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A9=20van=20Geldorp?= <ge@gse.nl>
Date: Sun, 13 Mar 2005 23:10:25 +0000
Subject: [PATCH] tinus <o112w8r02@sneakemail.com>: Use RegisterShellHookWindow

svn path=/trunk/; revision=14042
---
 reactos/subsys/system/explorer/Makefile       |  4 +-
 .../system/explorer/taskbar/taskbar.cpp       | 40 +++++++++++++++++--
 .../subsys/system/explorer/taskbar/taskbar.h  |  1 +
 reactos/w32api/include/winuser.h              |  1 +
 4 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/reactos/subsys/system/explorer/Makefile b/reactos/subsys/system/explorer/Makefile
index 27f6852474c..b0d40a24e3d 100644
--- a/reactos/subsys/system/explorer/Makefile
+++ b/reactos/subsys/system/explorer/Makefile
@@ -17,7 +17,7 @@ TARGET_INSTALLDIR := .
 TARGET_CFLAGS := \
 	-D__USE_W32API -DWIN32 -D_ROS_ \
 	-D_WIN32_IE=0x0600 -D_WIN32_WINNT=0x0501 -DWINVER=0x0500 \
-	-DUNICODE -fexceptions -Wall \
+	-DUNICODE -fexceptions -Wall -g \
 	-I../../../include/expat
 
 TARGET_CPPFLAGS := $(TARGET_CFLAGS)
@@ -26,7 +26,7 @@ TARGET_RCFLAGS := -D__USE_W32API -DWIN32 -D_ROS_ -D__WINDRES__
 
 TARGET_SDKLIBS := \
 	gdi32.a comctl32.a ole32.a oleaut32.a shell32.a expat.a \
-	notifyhook.a ws2_32.a msimg32.a
+	notifyhook.a ws2_32.a msimg32.a user32.a
 
 TARGET_GCCLIBS := stdc++ uuid
 
diff --git a/reactos/subsys/system/explorer/taskbar/taskbar.cpp b/reactos/subsys/system/explorer/taskbar/taskbar.cpp
index c18f1a1c550..91e79068d1c 100644
--- a/reactos/subsys/system/explorer/taskbar/taskbar.cpp
+++ b/reactos/subsys/system/explorer/taskbar/taskbar.cpp
@@ -55,12 +55,25 @@ TaskBarMap::~TaskBarMap()
 TaskBar::TaskBar(HWND hwnd)
  :	super(hwnd)
 {
+	HMODULE Module;
 	_last_btn_width = 0;
+
+	Module = LoadLibraryA("User32.dll");
+	if (Module && GetProcAddress(Module, "RegisterShellHookWindow")) {
+		_HasShellHook = TRUE;
+	} else {
+		_HasShellHook = FALSE;
+		if (Module)
+			FreeLibrary(Module);
+	}
+	LOG (_HasShellHook ? L"Has shell hooks.\n" : L"Does not have shell hooks.\n");
+
 }
 
 TaskBar::~TaskBar()
 {
-	KillTimer(_hwnd, 0);
+	if (!_HasShellHook)
+		KillTimer(_hwnd, 0);
 
 	//DeinstallShellHook();
 }
@@ -99,13 +112,22 @@ LRESULT TaskBar::Init(LPCREATESTRUCT pcs)
 
 	Refresh();
 
-	SetTimer(_hwnd, 0, 200, NULL);
+	if (_HasShellHook)
+		RegisterShellHookWindow(_hwnd);
+	else
+		SetTimer(_hwnd, 0, 200, NULL);
 
 	return 0;
 }
 
 LRESULT TaskBar::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 {
+	static UINT ShellHookNmsg = 0;
+
+	if (!ShellHookNmsg) {
+		ShellHookNmsg = RegisterWindowMessage(TEXT("SHELLHOOK"));
+		LOG (FmtString(TEXT("Nmsg == %#x"), ShellHookNmsg));
+	}
 	switch(nmsg) {
 	  case WM_SIZE:
 		SendMessage(_htoolbar, WM_SIZE, 0, 0);
@@ -145,7 +167,19 @@ LRESULT TaskBar::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 		return (LRESULT)(HWND)_last_foreground_wnd;
 
 	  default: def:
-		return super::WndProc(nmsg, wparam, lparam);
+		if (nmsg == RegisterWindowMessage(TEXT("SHELLHOOK"))) {
+			LOG(FmtString(TEXT("SHELLHOOK %x"), wparam));
+			switch (wparam) {
+			  case HSHELL_WINDOWCREATED:
+			  case HSHELL_WINDOWDESTROYED:
+			  case HSHELL_WINDOWACTIVATED:
+			  case HSHELL_REDRAW:
+				Refresh();
+				break;
+			}
+		} else {
+			return super::WndProc(nmsg, wparam, lparam);
+		}
 	}
 
 	return 0;
diff --git a/reactos/subsys/system/explorer/taskbar/taskbar.h b/reactos/subsys/system/explorer/taskbar/taskbar.h
index bc1d4e0bb03..8a1503371c8 100644
--- a/reactos/subsys/system/explorer/taskbar/taskbar.h
+++ b/reactos/subsys/system/explorer/taskbar/taskbar.h
@@ -85,6 +85,7 @@ protected:
 	int			_next_id;
 	WindowHandle _last_foreground_wnd;
 	int		_last_btn_width;
+	BOOL		_HasShellHook;
 
 	LRESULT	Init(LPCREATESTRUCT pcs);
 	LRESULT	WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam);
diff --git a/reactos/w32api/include/winuser.h b/reactos/w32api/include/winuser.h
index 8b620ca19a5..11aa8218899 100644
--- a/reactos/w32api/include/winuser.h
+++ b/reactos/w32api/include/winuser.h
@@ -3708,6 +3708,7 @@ BOOL WINAPI RegisterLogonProcess(DWORD,BOOL);
 #if (_WIN32_WINNT >= 0x0501)
 BOOL WINAPI RegisterRawInputDevices(PCRAWINPUTDEVICE,UINT,UINT);
 #endif
+BOOL WINAPI RegisterShellHookWindow(HWND);
 UINT WINAPI RegisterWindowMessageA(LPCSTR);
 UINT WINAPI RegisterWindowMessageW(LPCWSTR);
 BOOL WINAPI ReleaseCapture(void);