/[winpt]/trunk/PTD/PTD.cpp
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revision 2 by twoaday, Mon Jan 31 11:02:21 2005 UTC revision 57 by werner, Wed Nov 2 11:29:44 2005 UTC
# Line 1  Line 1 
1  /* PTD.cpp - Privacy Tray Dynamic  /* PTD.cpp - Privacy Tray Dynamic
2   *      Copyright (C) 2002-2005 Timo Schulz   *      Copyright (C) 2002-2005 Timo Schulz
3   *   *
4   * This file is part of WinPT.   * This file is part of WinPT.
5   *   *
6   * WinPT is free software; you can redistribute it and/or modify   * WinPT is free software; you can redistribute it and/or modify
7   * 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
8   * the Free Software Foundation; either version 2 of the License, or   * the Free Software Foundation; either version 2 of the License, or
9   * (at your option) any later version.   * (at your option) any later version.
10   *   *
11   * WinPT is distributed in the hope that it will be useful,   * WinPT is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU General Public License for more details.   * GNU General Public License for more details.
15   *   *
16   * You should have received a copy of the GNU General Public License   * You should have received a copy of the GNU General Public License
17   * along with WinPT; if not, write to the Free Software Foundation,   * along with WinPT; if not, write to the Free Software Foundation,
18   * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA   * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
19   */   */
20    
21  #include <windows.h>  #ifdef HAVE_CONFIG_H
22  #include <stdio.h>  #include <config.h>
23    #endif
24  HINSTANCE glob_hinst;  
25    #include <windows.h>
26  /* We need a special section in the DLL for storing our shared data */  #include <windows.h>
27  #pragma data_seg(".SHARDAT")  #include <stdio.h>
28  static HHOOK cbt_hook = NULL;  #include <ocidl.h>
29  static DWORD tray_proc_id = 0;  #include <olectl.h>
30  static HWND shell_traywnd = 0;  
31  static HWND curr_focus = NULL;  #include "wptJPG.h"
32  static HWND rebar_w32 = NULL;  
33  static HWND mstask_swc = NULL;  HINSTANCE glob_hinst;
34  static HWND systab_c32 = NULL;  
35  #pragma data_seg()  /* We need a special section in the DLL for storing our shared data */
36    #pragma data_seg(".SHARDAT")
37  static unsigned * journ_keys = 0;  static HHOOK    cbt_hook = NULL;    /* CTB hook handle. */
38  static unsigned key_idx = 0;  static DWORD    tray_proc_id = 0;   /* WinPT PID */
39  static unsigned nkeys = 0;  static HWND     shell_traywnd = 0;  /* Tray window handle. */
40  static HHOOK journ_hook = NULL;  static HWND     curr_focus = NULL;  /* Current window focus handle. */
41    static HWND     rebar_w32 = NULL;
42    static HWND     mstask_swc = NULL;
43  static LRESULT CALLBACK  static HWND     systab_c32 = NULL;
44  PTD_CBT_proc (int code, WPARAM wparam, LPARAM lparam)  #pragma data_seg()
45  {  
46      HWND curr_hwnd = NULL;        static unsigned *journ_keys = 0;
47      DWORD proc_id = 0;  static unsigned key_idx = 0;
48        static unsigned nkeys = 0;
49      if (code >= 0 && code == HCBT_SETFOCUS) {  static HHOOK journ_hook = NULL;     /* Journaling hook  handle. */
50          /* A window is about to receive the keyboard focus */            
51            
52          curr_hwnd = (HWND)wparam;  static LRESULT CALLBACK
53          GetWindowThreadProcessId( curr_hwnd, &proc_id );  PTD_CBT_proc (int code, WPARAM wparam, LPARAM lparam)
54          /* Only if the current window is different from this window list,  {
55             we set the new focus. For more information read the hint in      HWND curr_hwnd = NULL;      
56             PTD_initialize. */      DWORD proc_id = 0;
57          if ((proc_id != tray_proc_id)      
58               && (curr_hwnd != NULL)      if (code >= 0 && code == HCBT_SETFOCUS) {
59               && (curr_hwnd != curr_focus)          /* A window is about to receive the keyboard focus */          
60               && (curr_hwnd != shell_traywnd)          
61               && (curr_hwnd != systab_c32)          curr_hwnd = (HWND)wparam;
62               && (curr_hwnd != mstask_swc)          GetWindowThreadProcessId( curr_hwnd, &proc_id );
63               && (curr_hwnd != rebar_w32)) {          /* Only if the current window is different from this window list,
64              curr_focus = curr_hwnd;             we set the new focus. For more information read the hint in
65          }             PTD_initialize. */
66      }          if ((proc_id != tray_proc_id)
67                     && (curr_hwnd != NULL)
68      return  CallNextHookEx (cbt_hook , code, wparam, lparam);               && (curr_hwnd != curr_focus)
69  } /* PTD_CBT_proc */               && (curr_hwnd != shell_traywnd)
70                 && (curr_hwnd != systab_c32)
71                 && (curr_hwnd != mstask_swc)
72  HWND               && (curr_hwnd != rebar_w32)) {
73  PTD_get_curr_hwnd (void)              curr_focus = curr_hwnd;
74  {          }
75      return curr_focus;      }
76  } /* PTD_get_curr_hwnd */      
77        return  CallNextHookEx (cbt_hook , code, wparam, lparam);
78    }
79  BOOL  
80  PTD_initialize (void)  
81  {  /* Return the last selected window */
82      tray_proc_id = GetCurrentProcessId( );  extern "C" HWND
83      cbt_hook = SetWindowsHookEx( WH_CBT, PTD_CBT_proc, glob_hinst, 0 );  PTD_get_curr_hwnd (void)
84      if( cbt_hook == NULL )                {
85          return FALSE;      return curr_focus;
86        }
87      /* Okay, what are we doing here:  
88       * In the past I used the Spy++ application to find out why the old current window  
89       * doesn't work on so much systems. Now we try to use the computer based training  /* Initialize CTB hook and try to find the system windows. */
90       * hook, more precise the HCBT_SETFOCUS to find out the last window focus. But to  extern "C" BOOL
91       * succeed we need to ignore some windows because otherwise our own window or a  PTD_initialize (void)
92       * window from the taskbar would be recognized.  {
93       *      tray_proc_id = GetCurrentProcessId ();
94       * Here is what the Spy++ says about the windows order:      cbt_hook = SetWindowsHookEx (WH_CBT, PTD_CBT_proc, glob_hinst, 0);
95       * Shell_TrayWnd      if (cbt_hook == NULL)
96       *  \ ReBarWindow32        {
97       *                \ MSTaskSwWClass          char buf[500];
98       *                               \ SysTabControl32                  
99       *          FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError (),
100       * As a result we need to ignore those windows to prevent failured in the code.                     MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
101       */                     buf, sizeof buf -1, NULL);
102      shell_traywnd = FindWindowEx (NULL, NULL, "Shell_TrayWnd", NULL);          MessageBox (NULL, buf, "Error", MB_OK|MB_ICONSTOP);
103      rebar_w32 = FindWindowEx (shell_traywnd, NULL, "ReBarWindow32", NULL);          return FALSE;
104      mstask_swc = FindWindowEx (rebar_w32, NULL, "MSTaskSwWClass", NULL);        }
105      systab_c32 = FindWindowEx (mstask_swc, NULL, "SysTabControl32", NULL);      
106        
107      /*_log_box ("tray_proc_id=%u cbt_hook=%p shell_traywnd=%p rebar_w32=%p "      /* Okay, what are we doing here:
108                  "mstask_swc=%p systab_c32=%p",       * In the past I used the Spy++ application to find out why the old current
109                  tray_proc_id, cbt_hook, shell_traywnd, rebar_w32,       * window doesn't work on so much systems. Now we try to use the computer
110                  mstask_swc, systab_c32);*/       * based training hook, more precise the HCBT_SETFOCUS to find out the
111             * last window focus. But to succeed we need to ignore some windows
112      return TRUE;       * because otherwise our own window or a window from the taskbar
113  } /* PTD_initialize */       * would be recognized.
114         *
115         * Here is what the Spy++ says about the windows order:
116  void       * Shell_TrayWnd
117  PTD_delete (void)       *  \ ReBarWindow32
118  {       *                \ MSTaskSwWClass
119      if (!cbt_hook)       *                               \ SysTabControl32
120          return;       *
121      UnhookWindowsHookEx (cbt_hook);       * As a result we need to ignore those windows to prevent failured
122      cbt_hook = NULL;       * in the code.
123      shell_traywnd = NULL;       */
124      tray_proc_id = 0;      shell_traywnd = FindWindowEx (NULL, NULL, "Shell_TrayWnd", NULL);
125  } /* PTD_delete */      rebar_w32 = FindWindowEx (shell_traywnd, NULL, "ReBarWindow32", NULL);
126        mstask_swc = FindWindowEx (rebar_w32, NULL, "MSTaskSwWClass", NULL);
127        systab_c32 = FindWindowEx (mstask_swc, NULL, "SysTabControl32", NULL);
128  int      
129  PTD_is_used (void)      /*log_foo ("tray_proc_id=%u cbt_hook=%p shell_traywnd=%p rebar_w32=%p "
130  {                 "mstask_swc=%p systab_c32=%p",
131      return shell_traywnd && cbt_hook;                 tray_proc_id, cbt_hook, shell_traywnd, rebar_w32,
132  } /* PTD_is_used */                 mstask_swc, systab_c32);*/
133        
134        return TRUE;
135  LRESULT CALLBACK  }
136  PTD_playback_proc (int code, WPARAM wparam, LPARAM lparam)  
137  {  
138      LPEVENTMSG em;  /* Remove the CTB hook from the system and reset all variables. */
139        extern "C" void
140      if (code == HC_SKIP) {  PTD_delete (void)
141          key_idx++;  {
142          if (key_idx == nkeys) {      if (!cbt_hook)
143              UnhookWindowsHookEx (journ_hook);          return;
144              journ_hook = NULL;      UnhookWindowsHookEx (cbt_hook);
145          }      cbt_hook = NULL;
146          return 0;      shell_traywnd = NULL;
147      }      tray_proc_id = 0;
148      else if (code == HC_GETNEXT) {  }
149          /* Here is an overview what the event message struct can contain:  
150           * message - WM_KEYUP, WM_KEYDOWN, WM_SYSKEYUP, WM_SYSKEYDOWN:  
151           * paramL - specifies the virtual key code of the key that was pressed.  /* Return if the CTB hook is currently used. */
152           * paramH - specifies the scan code.                              extern "C" int
153           */  PTD_is_used (void)
154          em = (LPEVENTMSG )lparam;  {
155          if (journ_keys[key_idx] & 0x8000)      return shell_traywnd && cbt_hook;
156              em->message = journ_keys[key_idx] & 0x4000 ? WM_SYSKEYDOWN : WM_KEYDOWN;  }
157          else  
158              em->message = journ_keys[key_idx] & 0x4000 ? WM_SYSKEYUP : WM_KEYUP;  
159          em->paramL = LOBYTE( journ_keys[key_idx] )  static LRESULT CALLBACK
160              | (MapVirtualKey (LOBYTE (journ_keys[key_idx]), 0) << 8);  PTD_playback_proc (int code, WPARAM wparam, LPARAM lparam)
161          em->paramH = 1;  {
162          em->time = GetTickCount ();      LPEVENTMSG em;
163          return 0;      
164      }      if (code == HC_SKIP) {
165                key_idx++;
166      return CallNextHookEx (journ_hook, code, wparam, lparam);          if (key_idx == nkeys) {
167  } /* PTD_Playback_proc */              UnhookWindowsHookEx (journ_hook);
168                journ_hook = NULL;
169            }
170  BOOL          return 0;
171  PTD_keyb_send (UINT * keys, UINT n_keys)      }
172  {      else if (code == HC_GETNEXT) {
173      MSG msg;          /* Here is an overview what the event message struct can contain:
174             * message - WM_KEYUP, WM_KEYDOWN, WM_SYSKEYUP, WM_SYSKEYDOWN:
175      journ_keys = keys;           * paramL - specifies the virtual key code of the key that was pressed.
176      key_idx = 0;           * paramH - specifies the scan code.                            
177      nkeys =  n_keys;               */
178                em = (LPEVENTMSG )lparam;
179      if (journ_hook)          if (journ_keys[key_idx] & 0x8000)
180          return FALSE;              em->message = journ_keys[key_idx] & 0x4000 ? WM_SYSKEYDOWN : WM_KEYDOWN;
181                else
182      while (GetAsyncKeyState (VK_MENU) & 0x8000              em->message = journ_keys[key_idx] & 0x4000 ? WM_SYSKEYUP : WM_KEYUP;
183              || GetAsyncKeyState (VK_SHIFT) & 0x8000          em->paramL = LOBYTE( journ_keys[key_idx] )
184              || GetAsyncKeyState (VK_CONTROL) & 0x8000) {              | (MapVirtualKey (LOBYTE (journ_keys[key_idx]), 0) << 8);
185          if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {          em->paramH = 1;
186              if (msg.message == WM_QUIT) {          em->time = GetTickCount ();
187                  PostMessage (msg.hwnd, msg.message, msg.wParam, msg.lParam);          return 0;
188                  return FALSE;      }
189              }      
190              TranslateMessage (&msg);      return CallNextHookEx (journ_hook, code, wparam, lparam);
191              DispatchMessage (&msg);  } /* PTD_Playback_proc */
192          }  
193      }  
194      journ_hook = SetWindowsHookEx (WH_JOURNALPLAYBACK,  
195                                     (HOOKPROC)PTD_playback_proc,  extern "C" BOOL
196                                     glob_hinst, 0);  PTD_keyb_send (UINT *keys, UINT n_keys)
197      if (journ_hook == NULL)  {
198          return FALSE;      MSG msg;
199            journ_keys = keys;
200      while (journ_hook) {      key_idx = 0;
201          if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {      nkeys =  n_keys;    
202              if (msg.message == WM_QUIT) {      
203                  if (journ_hook)      if (journ_hook)
204                      UnhookWindowsHookEx (journ_hook);          return FALSE;
205                  PostMessage (msg.hwnd, msg.message, msg.wParam, msg.wParam);      
206              }      while (GetAsyncKeyState (VK_MENU) & 0x8000
207              TranslateMessage (&msg);              || GetAsyncKeyState (VK_SHIFT) & 0x8000
208              DispatchMessage (&msg);              || GetAsyncKeyState (VK_CONTROL) & 0x8000) {
209          }          if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {
210      }              if (msg.message == WM_QUIT) {
211                        PostMessage (msg.hwnd, msg.message, msg.wParam, msg.lParam);
212      return TRUE;                  return FALSE;
213  } /* PTD_keyb_send */              }
214                TranslateMessage (&msg);
215                DispatchMessage (&msg);
216  const char *          }
217  PTD_get_version (void)      }
218  {      journ_hook = SetWindowsHookEx (WH_JOURNALPLAYBACK,
219      return "0.8.0";                                     (HOOKPROC)PTD_playback_proc,
220  } /* PTD_get_version */                                     glob_hinst, 0);
221        if (journ_hook == NULL)
222                            return FALSE;
223  BOOL WINAPI      
224  DllMain (HINSTANCE hinst, DWORD reason, LPVOID reserv)      while (journ_hook) {
225  {          if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {
226      switch (reason)  {              if (msg.message == WM_QUIT) {
227      case DLL_PROCESS_ATTACH:                  if (journ_hook)
228          glob_hinst = hinst;                      UnhookWindowsHookEx (journ_hook);
229          break;                  PostMessage (msg.hwnd, msg.message, msg.wParam, msg.wParam);
230      case DLL_THREAD_ATTACH:                }
231          break;              TranslateMessage (&msg);
232      case DLL_THREAD_DETACH:                DispatchMessage (&msg);
233          break;          }
234      case DLL_PROCESS_DETACH:      }
235          break;      
236      }      return TRUE;
237      return TRUE;  }
238  } /* DllMain */  
239    
240    /* Return version of the PTD library. */
241    extern "C" const char *
242    PTD_get_version (void)
243    {
244        return PACKAGE_VERSION;
245    }
246    
247    
248    /* Display a JPG picture in the given window at the given point. */
249    extern "C" int
250    PTD_jpg_show (HWND hwnd, POINT *p, LPCSTR name)
251    {
252        CJPG jpg;
253        HDC hdc;
254        POINT p2;
255        BOOL rc;
256    
257        rc = jpg.load (name);
258        if (!rc)
259            return -1; /* XXX: use real return code. */
260        hdc = GetWindowDC (hwnd);
261        rc = jpg.updateSizeOnDC (hdc);
262        if (!rc) {
263            ReleaseDC (hwnd, hdc);
264            return -2; /* XXX: use real return code. */
265        }
266    
267        p2.x = jpg.m_Width;
268        p2.y = jpg.m_Height;
269        rc = jpg.show (hdc, p, &p2, 0, 0);
270    
271        ReleaseDC (hwnd, hdc);
272        jpg.freePictureData ();
273        return rc;
274    }
275    
276    
277                    
278    BOOL WINAPI
279    DllMain (HINSTANCE hinst, DWORD reason, LPVOID reserv)
280    {
281        switch (reason)  {
282        case DLL_PROCESS_ATTACH:
283            glob_hinst = hinst;
284            break;
285        case DLL_THREAD_ATTACH:  
286            break;
287        case DLL_THREAD_DETACH:  
288            break;
289        case DLL_PROCESS_DETACH:
290            break;
291        }
292        return TRUE;
293    }
294    
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