/[rdesktop]/sourceforge.net/trunk/seamlessrdp/ServerExe/HookDll/hookdll.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 1412 by ossman_, Mon Jun 18 11:59:38 2007 UTC revision 1437 by astrand, Thu Feb 21 10:16:19 2008 UTC
# Line 4  Line 4 
4    
5     Based on code copyright (C) 2004-2005 Martin Wickett     Based on code copyright (C) 2004-2005 Martin Wickett
6    
7     Copyright 2005-2006 Peter Åstrand <astrand@cendio.se> for Cendio AB     Copyright 2005-2008 Peter Åstrand <astrand@cendio.se> for Cendio AB
8     Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB     Copyright 2006-2008 Pierre Ossman <ossman@cendio.se> for Cendio AB
9    
10     This program is free software; you can redistribute it and/or modify     This program is free software; you can redistribute it and/or modify
11     it under the terms of the GNU General Public License as published by     it under the terms of the GNU General Public License as published by
# Line 75  static HINSTANCE g_instance = NULL; Line 75  static HINSTANCE g_instance = NULL;
75    
76  static HANDLE g_mutex = NULL;  static HANDLE g_mutex = NULL;
77    
78    static BOOL is_toplevel(HWND hwnd)
79    {
80            BOOL toplevel;
81            HWND parent;
82            parent = GetAncestor(hwnd, GA_PARENT);
83    
84            /* According to MS: "A window that has no parent, or whose
85               parent is the desktop window, is called a top-level
86               window." See http://msdn2.microsoft.com/en-us/library/ms632597(VS.85).aspx. */
87            toplevel = (!parent || parent == GetDesktopWindow());
88            return toplevel;
89    }
90    
91    /* Determine the "parent" field for the CREATE response. */
92    static HWND
93    get_parent(HWND hwnd)
94    {
95            HWND result;
96            HWND owner;
97            LONG exstyle;
98    
99            /* Use the same logic to determine if the window should be
100               "transient" (ie have no task icon) as MS uses. This is documented at
101               http://msdn2.microsoft.com/en-us/library/bb776822.aspx */
102            owner = GetWindow(hwnd, GW_OWNER);
103            exstyle = GetWindowLong(hwnd, GWL_EXSTYLE);
104            if (!owner && !(exstyle & WS_EX_TOOLWINDOW)) {
105                    /* display taskbar icon */
106                    HWND parent;
107                    parent = GetAncestor(hwnd, GA_PARENT);
108                    if (parent == GetDesktopWindow()) {
109                            /* top-level without parent */
110                            result = NULL;
111                    } else {
112                            result = parent;
113                    }
114            } else {
115                    /* no taskbar icon */
116                    result = (HWND) - 1;
117            }
118    
119            return result;
120    }
121    
122  static void  static void
123  update_position(HWND hwnd)  update_position(HWND hwnd)
124  {  {
# Line 144  update_zorder(HWND hwnd) Line 188  update_zorder(HWND hwnd)
188          vchannel_unblock();          vchannel_unblock();
189  }  }
190    
 static HWND  
 get_parent(HWND hwnd)  
 {  
         LONG style;  
         HWND parent;  
   
         style = GetWindowLong(hwnd, GWL_STYLE);  
   
         if (style & (WS_POPUP | DS_MODALFRAME))  
         {  
                 parent = (HWND) GetWindowLong(hwnd, GWL_HWNDPARENT);  
   
                 if (parent)  
                 {  
                         style = GetWindowLong(parent, GWL_STYLE);  
                         if (((style & WS_CHILD) && !(style & WS_POPUP)) || !(style & WS_VISIBLE))  
                                 parent = NULL;  
                 }  
   
                 if (!parent)  
                         parent = GetWindow(hwnd, GW_OWNER);  
   
                 if (parent)  
                 {  
                         style = GetWindowLong(parent, GWL_STYLE);  
                         if (((style & WS_CHILD) && !(style & WS_POPUP)) || !(style & WS_VISIBLE))  
                                 parent = NULL;  
                 }  
   
                 if (!parent)  
                         parent = (HWND) - 1;  
         }  
         else  
                 parent = NULL;  
   
         return parent;  
 }  
   
191  static HICON  static HICON
192  get_icon(HWND hwnd, int large)  get_icon(HWND hwnd, int large)
193  {  {
# Line 351  update_icon(HWND hwnd, HICON icon, int l Line 357  update_icon(HWND hwnd, HICON icon, int l
357  static LRESULT CALLBACK  static LRESULT CALLBACK
358  wndproc_hook_proc(int code, WPARAM cur_thread, LPARAM details)  wndproc_hook_proc(int code, WPARAM cur_thread, LPARAM details)
359  {  {
360          HWND hwnd, parent;          HWND hwnd;
361          UINT msg;          UINT msg;
362          WPARAM wparam;          WPARAM wparam;
363          LPARAM lparam;          LPARAM lparam;
# Line 368  wndproc_hook_proc(int code, WPARAM cur_t Line 374  wndproc_hook_proc(int code, WPARAM cur_t
374    
375          style = GetWindowLong(hwnd, GWL_STYLE);          style = GetWindowLong(hwnd, GWL_STYLE);
376    
377          /* Docs say that WS_CHILD and WS_POPUP is an illegal combination,          if (!is_toplevel(hwnd)) {
            but they exist nonetheless. */  
         if ((style & WS_CHILD) && !(style & WS_POPUP))  
378                  goto end;                  goto end;
379            }
         parent = get_parent(hwnd);  
380    
381          switch (msg)          switch (msg)
382          {          {
# Line 396  wndproc_hook_proc(int code, WPARAM cur_t Line 399  wndproc_hook_proc(int code, WPARAM cur_t
399                                                  flags |= SEAMLESS_CREATE_MODAL;                                                  flags |= SEAMLESS_CREATE_MODAL;
400    
401                                          vchannel_write("CREATE", "0x%08lx,0x%08lx,0x%08lx,0x%08x",                                          vchannel_write("CREATE", "0x%08lx,0x%08lx,0x%08lx,0x%08x",
402                                                         (long) hwnd, (long) pid, (long) parent,                                                         (long) hwnd, (long) pid, (long) get_parent(hwnd),
403                                                         flags);                                                         flags);
404    
405                                          GetWindowTextW(hwnd, title, sizeof(title) / sizeof(*title));                                          GetWindowTextW(hwnd, title, sizeof(title) / sizeof(*title));
# Line 499  wndproc_hook_proc(int code, WPARAM cur_t Line 502  wndproc_hook_proc(int code, WPARAM cur_t
502  static LRESULT CALLBACK  static LRESULT CALLBACK
503  wndprocret_hook_proc(int code, WPARAM cur_thread, LPARAM details)  wndprocret_hook_proc(int code, WPARAM cur_thread, LPARAM details)
504  {  {
505          HWND hwnd, parent;          HWND hwnd;
506          UINT msg;          UINT msg;
507          WPARAM wparam;          WPARAM wparam;
508          LPARAM lparam;          LPARAM lparam;
# Line 516  wndprocret_hook_proc(int code, WPARAM cu Line 519  wndprocret_hook_proc(int code, WPARAM cu
519    
520          style = GetWindowLong(hwnd, GWL_STYLE);          style = GetWindowLong(hwnd, GWL_STYLE);
521    
522          /* Docs say that WS_CHILD and WS_POPUP is an illegal combination,          if (!is_toplevel(hwnd)) {
            but they exist nonetheless. */  
         if ((style & WS_CHILD) && !(style & WS_POPUP))  
523                  goto end;                  goto end;
524            }
         parent = get_parent(hwnd);  
525    
526          switch (msg)          switch (msg)
527          {          {
# Line 577  wndprocret_hook_proc(int code, WPARAM cu Line 577  wndprocret_hook_proc(int code, WPARAM cu
577          {          {
578                  /* FIXME: SetForegroundWindow() kills menus. Need to find a                  /* FIXME: SetForegroundWindow() kills menus. Need to find a
579                     clean way to solve this. */                     clean way to solve this. */
580                  if ((GetForegroundWindow() != hwnd) && !parent)                  if ((GetForegroundWindow() != hwnd) && !get_parent(hwnd))
581                          SetForegroundWindow(hwnd);                          SetForegroundWindow(hwnd);
582    
583                  vchannel_write("ACK", "%u", g_blocked_focus_serial);                  vchannel_write("ACK", "%u", g_blocked_focus_serial);
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