Source Code for Module winappdbg.win32.user32

  1  # Copyright (c) 2009, Mario Vilas 
  2  # All rights reserved. 
  3  # 
  4  # Redistribution and use in source and binary forms, with or without 
  5  # modification, are permitted provided that the following conditions are met: 
  6  # 
  7  #     * Redistributions of source code must retain the above copyright notice, 
  8  #       this list of conditions and the following disclaimer. 
  9  #     * Redistributions in binary form must reproduce the above copyright 
 10  #       notice,this list of conditions and the following disclaimer in the 
 11  #       documentation and/or other materials provided with the distribution. 
 12  #     * Neither the name of the copyright holder nor the names of its 
 13  #       contributors may be used to endorse or promote products derived from 
 14  #       this software without specific prior written permission. 
 15  # 
 16  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 17  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 18  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 19  # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 20  # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 21  # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 22  # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 23  # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 24  # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 25  # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 26  # POSSIBILITY OF SUCH DAMAGE. 
 27   
 28  """ 
 29  Debugging API wrappers in ctypes. 
 30   
 31  @see: U{http://apps.sourceforge.net/trac/winappdbg/wiki/Win32APIWrappers} 
 32  """ 
 33   
 34  __revision__ = "$Id: user32.py 437 2009-11-08 10:10:51Z qvasimodo $" 
 35   
 36  from defines import * 
 37   
 38  #--- Constants ---------------------------------------------------------------- 
 39   
 40  # GetWindowLong / SetWindowLong / GetWindowLongPtr / SetWindowLongPtr 
 41  GWL_WNDPROC                          = -4 
 42  GWL_HINSTANCE                        = -6 
 43  GWL_HWNDPARENT                       = -8 
 44  GWL_STYLE                            = -16 
 45  GWL_EXSTYLE                          = -20 
 46  GWL_USERDATA                         = -21 
 47  GWL_ID                               = -12 
 48   
 49  # ShowWindow 
 50  SW_HIDE                             = 0 
 51  SW_SHOWNORMAL                       = 1 
 52  SW_NORMAL                           = 1 
 53  SW_SHOWMINIMIZED                    = 2 
 54  SW_SHOWMAXIMIZED                    = 3 
 55  SW_MAXIMIZE                         = 3 
 56  SW_SHOWNOACTIVATE                   = 4 
 57  SW_SHOW                             = 5 
 58  SW_MINIMIZE                         = 6 
 59  SW_SHOWMINNOACTIVE                  = 7 
 60  SW_SHOWNA                           = 8 
 61  SW_RESTORE                          = 9 
 62  SW_SHOWDEFAULT                      = 10 
 63  SW_FORCEMINIMIZE                    = 11 
 64   
 65  # SendMessageTimeout flags 
 66  SMTO_NORMAL                         = 0 
 67  SMTO_BLOCK                          = 1 
 68  SMTO_ABORTIFHUNG                    = 2 
 69  SMTO_NOTIMEOUTIFNOTHUNG                         = 8 
 70  SMTO_ERRORONEXIT                    = 0x20 
 71   
 72  #--- Window messages ---------------------------------------------------------- 
 73   
 74  WM_USER                              = 0x400 
 75  WM_NULL                              = 0 
 76  WM_CREATE                            = 1 
 77  WM_DESTROY                           = 2 
 78  WM_MOVE                              = 3 
 79  WM_SIZE                              = 5 
 80  WM_ACTIVATE                          = 6 
 81  WA_INACTIVE                          = 0 
 82  WA_ACTIVE                            = 1 
 83  WA_CLICKACTIVE                       = 2 
 84  WM_SETFOCUS                          = 7 
 85  WM_KILLFOCUS                         = 8 
 86  WM_ENABLE                            = 0x0A 
 87  WM_SETREDRAW                         = 0x0B 
 88  WM_SETTEXT                           = 0x0C 
 89  WM_GETTEXT                           = 0x0D 
 90  WM_GETTEXTLENGTH                     = 0x0E 
 91  WM_PAINT                             = 0x0F 
 92  WM_CLOSE                             = 0x10 
 93  WM_QUERYENDSESSION                   = 0x11 
 94  WM_QUIT                              = 0x12 
 95  WM_QUERYOPEN                         = 0x13 
 96  WM_ERASEBKGND                        = 0x14 
 97  WM_SYSCOLORCHANGE                    = 0x15 
 98  WM_ENDSESSION                        = 0x16 
 99  WM_SHOWWINDOW                        = 0x18 
100  WM_WININICHANGE                      = 0x1A 
101  WM_SETTINGCHANGE                         = WM_WININICHANGE 
102  WM_DEVMODECHANGE                     = 0x1B 
103  WM_ACTIVATEAPP                       = 0x1C 
104  WM_FONTCHANGE                        = 0x1D 
105  WM_TIMECHANGE                        = 0x1E 
106  WM_CANCELMODE                        = 0x1F 
107  WM_SETCURSOR                         = 0x20 
108  WM_MOUSEACTIVATE                     = 0x21 
109  WM_CHILDACTIVATE                     = 0x22 
110  WM_QUEUESYNC                         = 0x23 
111  WM_GETMINMAXINFO                     = 0x24 
112  WM_PAINTICON                         = 0x26 
113  WM_ICONERASEBKGND                    = 0x27 
114  WM_NEXTDLGCTL                        = 0x28 
115  WM_SPOOLERSTATUS                     = 0x2A 
116  WM_DRAWITEM                          = 0x2B 
117  WM_MEASUREITEM                       = 0x2C 
118  WM_DELETEITEM                        = 0x2D 
119  WM_VKEYTOITEM                        = 0x2E 
120  WM_CHARTOITEM                        = 0x2F 
121  WM_SETFONT                           = 0x30 
122  WM_GETFONT                           = 0x31 
123  WM_SETHOTKEY                         = 0x32 
124  WM_GETHOTKEY                         = 0x33 
125  WM_QUERYDRAGICON                     = 0x37 
126  WM_COMPAREITEM                       = 0x39 
127  WM_GETOBJECT                             = 0x3D 
128  WM_COMPACTING                        = 0x41 
129  WM_OTHERWINDOWCREATED                = 0x42 
130  WM_OTHERWINDOWDESTROYED              = 0x43 
131  WM_COMMNOTIFY                        = 0x44 
132  CN_RECEIVE                           = 0x1 
133  CN_TRANSMIT                          = 0x2 
134  CN_EVENT                             = 0x4 
135  WM_WINDOWPOSCHANGING                 = 0x46 
136  WM_WINDOWPOSCHANGED                  = 0x47 
137  WM_POWER                             = 0x48 
138  PWR_OK                               = 1 
139  PWR_FAIL                             = -1 
140  PWR_SUSPENDREQUEST                   = 1 
141  PWR_SUSPENDRESUME                    = 2 
142  PWR_CRITICALRESUME                   = 3 
143  WM_COPYDATA                          = 0x4A 
144  WM_CANCELJOURNAL                     = 0x4B 
145  WM_NOTIFY                            = 0x4E 
146  WM_INPUTLANGCHANGEREQUEST            = 0x50 
147  WM_INPUTLANGCHANGE                   = 0x51 
148  WM_TCARD                             = 0x52 
149  WM_HELP                              = 0x53 
150  WM_USERCHANGED                       = 0x54 
151  WM_NOTIFYFORMAT                      = 0x55 
152  WM_CONTEXTMENU                       = 0x7B 
153  WM_STYLECHANGING                     = 0x7C 
154  WM_STYLECHANGED                      = 0x7D 
155  WM_DISPLAYCHANGE                     = 0x7E 
156  WM_GETICON                           = 0x7F 
157  WM_SETICON                           = 0x80 
158  WM_NCCREATE                          = 0x81 
159  WM_NCDESTROY                         = 0x82 
160  WM_NCCALCSIZE                        = 0x83 
161  WM_NCHITTEST                         = 0x84 
162  WM_NCPAINT                           = 0x85 
163  WM_NCACTIVATE                        = 0x86 
164  WM_GETDLGCODE                        = 0x87 
165  WM_SYNCPAINT                             = 0x88 
166  WM_NCMOUSEMOVE                       = 0x0A0 
167  WM_NCLBUTTONDOWN                     = 0x0A1 
168  WM_NCLBUTTONUP                       = 0x0A2 
169  WM_NCLBUTTONDBLCLK                   = 0x0A3 
170  WM_NCRBUTTONDOWN                     = 0x0A4 
171  WM_NCRBUTTONUP                       = 0x0A5 
172  WM_NCRBUTTONDBLCLK                   = 0x0A6 
173  WM_NCMBUTTONDOWN                     = 0x0A7 
174  WM_NCMBUTTONUP                       = 0x0A8 
175  WM_NCMBUTTONDBLCLK                   = 0x0A9 
176  WM_KEYFIRST                          = 0x100 
177  WM_KEYDOWN                           = 0x100 
178  WM_KEYUP                             = 0x101 
179  WM_CHAR                              = 0x102 
180  WM_DEADCHAR                          = 0x103 
181  WM_SYSKEYDOWN                        = 0x104 
182  WM_SYSKEYUP                          = 0x105 
183  WM_SYSCHAR                           = 0x106 
184  WM_SYSDEADCHAR                       = 0x107 
185  WM_KEYLAST                           = 0x108 
186  WM_INITDIALOG                        = 0x110 
187  WM_COMMAND                           = 0x111 
188  WM_SYSCOMMAND                        = 0x112 
189  WM_TIMER                             = 0x113 
190  WM_HSCROLL                           = 0x114 
191  WM_VSCROLL                           = 0x115 
192  WM_INITMENU                          = 0x116 
193  WM_INITMENUPOPUP                     = 0x117 
194  WM_MENUSELECT                        = 0x11F 
195  WM_MENUCHAR                          = 0x120 
196  WM_ENTERIDLE                         = 0x121 
197  WM_CTLCOLORMSGBOX                    = 0x132 
198  WM_CTLCOLOREDIT                      = 0x133 
199  WM_CTLCOLORLISTBOX                   = 0x134 
200  WM_CTLCOLORBTN                       = 0x135 
201  WM_CTLCOLORDLG                       = 0x136 
202  WM_CTLCOLORSCROLLBAR                 = 0x137 
203  WM_CTLCOLORSTATIC                    = 0x138 
204  WM_MOUSEFIRST                        = 0x200 
205  WM_MOUSEMOVE                         = 0x200 
206  WM_LBUTTONDOWN                       = 0x201 
207  WM_LBUTTONUP                         = 0x202 
208  WM_LBUTTONDBLCLK                     = 0x203 
209  WM_RBUTTONDOWN                       = 0x204 
210  WM_RBUTTONUP                         = 0x205 
211  WM_RBUTTONDBLCLK                     = 0x206 
212  WM_MBUTTONDOWN                       = 0x207 
213  WM_MBUTTONUP                         = 0x208 
214  WM_MBUTTONDBLCLK                     = 0x209 
215  WM_MOUSELAST                         = 0x209 
216  WM_PARENTNOTIFY                      = 0x210 
217  WM_ENTERMENULOOP                     = 0x211 
218  WM_EXITMENULOOP                      = 0x212 
219  WM_MDICREATE                         = 0x220 
220  WM_MDIDESTROY                        = 0x221 
221  WM_MDIACTIVATE                       = 0x222 
222  WM_MDIRESTORE                        = 0x223 
223  WM_MDINEXT                           = 0x224 
224  WM_MDIMAXIMIZE                       = 0x225 
225  WM_MDITILE                           = 0x226 
226  WM_MDICASCADE                        = 0x227 
227  WM_MDIICONARRANGE                    = 0x228 
228  WM_MDIGETACTIVE                      = 0x229 
229  WM_MDISETMENU                        = 0x230 
230  WM_DROPFILES                         = 0x233 
231  WM_MDIREFRESHMENU                    = 0x234 
232  WM_CUT                               = 0x300 
233  WM_COPY                              = 0x301 
234  WM_PASTE                             = 0x302 
235  WM_CLEAR                             = 0x303 
236  WM_UNDO                              = 0x304 
237  WM_RENDERFORMAT                      = 0x305 
238  WM_RENDERALLFORMATS                  = 0x306 
239  WM_DESTROYCLIPBOARD                  = 0x307 
240  WM_DRAWCLIPBOARD                     = 0x308 
241  WM_PAINTCLIPBOARD                    = 0x309 
242  WM_VSCROLLCLIPBOARD                  = 0x30A 
243  WM_SIZECLIPBOARD                     = 0x30B 
244  WM_ASKCBFORMATNAME                   = 0x30C 
245  WM_CHANGECBCHAIN                     = 0x30D 
246  WM_HSCROLLCLIPBOARD                  = 0x30E 
247  WM_QUERYNEWPALETTE                   = 0x30F 
248  WM_PALETTEISCHANGING                 = 0x310 
249  WM_PALETTECHANGED                    = 0x311 
250  WM_HOTKEY                            = 0x312 
251  WM_PRINT                                 = 0x317 
252  WM_PRINTCLIENT                       = 0x318 
253  WM_PENWINFIRST                       = 0x380 
254  WM_PENWINLAST                        = 0x38F 
255   
256  #--- user32.dll -------------------------------------------------------------- 
257   
258  # Window enumerator class 
259 -class __WindowEnumerator (object): 
260 -    def __init__(self): 
261          self.hwnd = list() 
262 -    def __call__(self, hwnd, lParam): 
263          self.hwnd.append(hwnd.value) 
264          return TRUE 
265   
266  WNDENUMPROC = WINFUNCTYPE(BOOL, HWND, PVOID) 
267   
268  # HWND FindWindow( 
269  #     LPCTSTR lpClassName, 
270  #     LPCTSTR lpWindowName 
271  # ); 
272 -def FindWindowA(lpClassName = None, lpWindowName = None): 
273      _FindWindowA = windll.user32.FindWindowA 
274      _FindWindowA.argtypes = [LPSTR, LPSTR] 
275      _FindWindowA.restype = HWND 
276   
277      if not lpClassName: 
278          lpClassName = None 
279      if not lpWindowName: 
280          lpWindowName = None 
281      hWnd = _FindWindowA(lpClassName, lpWindowName) 
282      hWnd = hWnd.value 
283      if hWnd == NULL: 
284          raise ctypes.WinError() 
285      return hWnd 
286   
287 -def FindWindowW(lpClassName = None, lpWindowName = None): 
288      _FindWindowW = windll.user32.FindWindowW 
289      _FindWindowW.argtypes = [LPSTR, LPSTR] 
290      _FindWindowW.restype = HWND 
291   
292      if not lpClassName: 
293          lpClassName = None 
294      if not lpWindowName: 
295          lpWindowName = None 
296      hWnd = _FindWindowW(lpClassName, lpWindowName) 
297      hWnd = hWnd.value 
298      if hWnd == NULL: 
299          raise ctypes.WinError() 
300      return hWnd 
301   
302  FindWindow = GuessStringType(FindWindowA, FindWindowW) 
303   
304  # int GetClassName( 
305  #     HWND hWnd, 
306  #     LPTSTR lpClassName, 
307  #     int nMaxCount 
308  # ); 
309 -def GetClassNameA(hWnd): 
310      _GetClassNameA = windll.user32.GetClassNameA 
311      _GetClassNameA.argtypes = [HWND, LPSTR, ctypes.c_int] 
312      _GetClassNameA.restype = ctypes.c_int 
313   
314      nMaxCount = 0x1000 
315      dwCharSize = sizeof(CHAR) 
316      while 1: 
317          lpClassName = ctypes.create_string_buffer("", nMaxCount) 
318          nCount = _GetClassNameA(hWnd, lpClassName, nMaxCount) 
319          if nCount == 0: 
320              raise ctypes.WinError() 
321          if nCount < nMaxCount - dwCharSize: 
322              break 
323          nMaxCount += 0x1000 
324      return lpClassName.value 
325   
326 -def GetClassNameW(hWnd): 
327      _GetClassNameW = windll.user32.GetClassNameW 
328      _GetClassNameW.argtypes = [HWND, LPWSTR, ctypes.c_int] 
329      _GetClassNameW.restype = ctypes.c_int 
330   
331      nMaxCount = 0x1000 
332      dwCharSize = sizeof(WCHAR) 
333      while 1: 
334          lpClassName = ctypes.create_unicode_buffer(u"", nMaxCount) 
335          nCount = _GetClassNameW(hWnd, lpClassName, nMaxCount) 
336          if nCount == 0: 
337              raise ctypes.WinError() 
338          if nCount < nMaxCount - dwCharSize: 
339              break 
340          nMaxCount += 0x1000 
341      return lpClassName.value 
342   
343  GetClassName = GuessStringType(GetClassNameA, GetClassNameW) 
344   
345  # LONG GetWindowLong( 
346  #     HWND hWnd, 
347  #     int nIndex 
348  # ); 
349 -def GetWindowLongA(hWnd, nIndex = 0): 
350      _GetWindowLongA = windll.user32.GetWindowLongA 
351      _GetWindowLongA.argtypes = [HWND, ctypes.c_int] 
352      _GetWindowLongA.restype = LONG 
353      return _GetWindowLongA(hWnd, nIndex) 
354   
355 -def GetWindowLongW(hWnd, nIndex = 0): 
356      _GetWindowLongW = windll.user32.GetWindowLongW 
357      _GetWindowLongW.argtypes = [HWND, ctypes.c_int] 
358      _GetWindowLongW.restype = LONG 
359      return _GetWindowLongW(hWnd, nIndex) 
360   
361  ##GetWindowLong = GuessStringType(GetWindowLongA, GetWindowLongW) 
362  GetWindowLong = GetWindowLongA  # XXX HACK 
363   
364  # HWND GetShellWindow(VOID); 
365 -def GetShellWindow(): 
366      _GetShellWindow = windll.user32.GetShellWindow 
367      _GetShellWindow.argtypes = [] 
368      _GetShellWindow.restype  = HWND 
369      _GetShellWindow.errcheck = RaiseIfZero 
370      return _GetShellWindow() 
371   
372  # DWORD GetWindowThreadProcessId( 
373  #     HWND hWnd, 
374  #     LPDWORD lpdwProcessId 
375  # ); 
376 -def GetWindowThreadProcessId(hWnd): 
377      _GetWindowThreadProcessId = windll.user32.GetWindowThreadProcessId 
378      _GetWindowThreadProcessId.argtypes = [HWND, LPDWORD] 
379      _GetWindowThreadProcessId.restype = DWORD 
380   
381      dwProcessId = DWORD(0) 
382      dwThreadId = _GetWindowThreadProcessId(hWnd, ctypes.byref(dwProcessId)) 
383      if dwThreadId == 0: 
384          raise ctypes.WinError() 
385      return dwThreadId, dwProcessId.value 
386   
387  # HWND GetParent( 
388  #       HWND hWnd 
389  # ); 
390 -def GetParent(hWnd): 
391      _GetParent = windll.user32.GetParent 
392      _GetParent.argtypes = [HWND] 
393      _GetParent.restype = HWND 
394   
395      hWndParent = _GetParent(hWnd) 
396      hWndParent = hWndParent.value 
397      if hWndParent == NULL: 
398          winerr = GetLastError() 
399          if winerr != ERROR_SUCCESS: 
400              raise ctypes.WinError(winerr) 
401      return hWndParent 
402   
403  # BOOL EnableWindow( 
404  #     HWND hWnd, 
405  #     BOOL bEnable 
406  # ); 
407 -def EnableWindow(hWnd, bEnable = True): 
408      _EnableWindow = windll.user32.EnableWindow 
409      _EnableWindow.argtypes = [HWND, BOOL] 
410      _EnableWindow.restype = bool 
411      return _EnableWindow(hWnd, bool(bEnable)) 
412   
413  # BOOL ShowWindow( 
414  #     HWND hWnd, 
415  #     int nCmdShow 
416  # ); 
417 -def ShowWindow(hWnd, nCmdShow = SW_SHOW): 
418      _ShowWindow = windll.user32.ShowWindow 
419      _ShowWindow.argtypes = [HWND, ctypes.c_int] 
420      _ShowWindow.restype = bool 
421      return _ShowWindow(hWnd, nCmdShow) 
422   
423  # BOOL ShowWindowAsync( 
424  #     HWND hWnd, 
425  #     int nCmdShow 
426  # ); 
427 -def ShowWindowAsync(hWnd, nCmdShow = SW_SHOW): 
428      _ShowWindowAsync = windll.user32.ShowWindowAsync 
429      _ShowWindowAsync.argtypes = [HWND, ctypes.c_int] 
430      _ShowWindowAsync.restype = bool 
431      return _ShowWindowAsync(hWnd, nCmdShow) 
432   
433  # BOOL CALLBACK EnumWndProc( 
434  #     HWND hwnd, 
435  #     LPARAM lParam 
436  # ); 
437 -class __EnumWndProc (__WindowEnumerator): 
438      pass 
439   
440  # BOOL EnumWindows( 
441  #     WNDENUMPROC lpEnumFunc, 
442  #     LPARAM lParam 
443  # ); 
444 -def EnumWindows(): 
445      _EnumWindows = windll.user32.EnumWindows 
446      _EnumWindows.argtypes = [WNDENUMPROC, LPARAM] 
447      _EnumWindows.restype = bool 
448   
449      EnumFunc = __EnumWndProc() 
450      lpEnumFunc = WNDENUMPROC(EnumFunc) 
451      if not _EnumWindows(lpEnumFunc, NULL): 
452          errcode = GetLastError() 
453          if errcode != ERROR_NO_MORE_FILES: 
454              raise ctypes.WinError(errcode) 
455      return EnumFunc.hwnd 
456   
457  # BOOL CALLBACK EnumThreadWndProc( 
458  #     HWND hwnd, 
459  #     LPARAM lParam 
460  # ); 
461 -class __EnumThreadWndProc (__WindowEnumerator): 
462      pass 
463   
464  # BOOL EnumThreadWindows( 
465  #     DWORD dwThreadId, 
466  #     WNDENUMPROC lpfn, 
467  #     LPARAM lParam 
468  # ); 
469 -def EnumThreadWindows(dwThreadId): 
470      _EnumThreadWindows = windll.user32.EnumThreadWindows 
471      _EnumThreadWindows.argtypes = [DWORD, WNDENUMPROC, LPARAM] 
472      _EnumThreadWindows.restype = bool 
473   
474      fn = __EnumThreadWndProc() 
475      lpfn = WNDENUMPROC(fn) 
476      if not _EnumThreadWindows(dwThreadId, lpfn, NULL): 
477          errcode = GetLastError() 
478          if errcode != ERROR_NO_MORE_FILES: 
479              raise ctypes.WinError(errcode) 
480      return fn.hwnd 
481   
482  # BOOL CALLBACK EnumChildProc( 
483  #     HWND hwnd, 
484  #     LPARAM lParam 
485  # ); 
486 -class __EnumChildProc (__WindowEnumerator): 
487      pass 
488   
489  # BOOL EnumChildWindows( 
490  #     HWND hWndParent, 
491  #     WNDENUMPROC lpEnumFunc, 
492  #     LPARAM lParam 
493  # ); 
494 -def EnumChildWindows(hWndParent = NULL): 
495      _EnumChildWindows = windll.user32.EnumChildWindows 
496      _EnumChildWindows.argtypes = [HWND, WNDENUMPROC, LPARAM] 
497      _EnumChildWindows.restype = bool 
498   
499      EnumFunc = __EnumChildProc() 
500      lpEnumFunc = WNDENUMPROC(EnumFunc) 
501      if not _EnumChildWindows(hWndParent, lpEnumFunc, NULL): 
502          errcode = GetLastError() 
503          if errcode != ERROR_NO_MORE_FILES: 
504              raise ctypes.WinError(errcode) 
505      return EnumFunc.hwnd 
506   
507  # LRESULT SendMessage( 
508  #     HWND hWnd, 
509  #     UINT Msg, 
510  #     WPARAM wParam, 
511  #     LPARAM lParam 
512  # ); 
513 -def SendMessageA(hWnd, Msg, wParam = 0, lParam = 0): 
514      _SendMessageA = windll.user32.SendMessageA 
515      _SendMessageA.argtypes = [HWND, UINT, WPARAM, LPARAM] 
516      _SendMessageA.restype = LRESULT 
517      return _SendMessageA(hWnd, Msg, wParam, lParam) 
518   
519 -def SendMessageW(hWnd, Msg, wParam = 0, lParam = 0): 
520      _SendMessageW = windll.user32.SendMessageW 
521      _SendMessageW.argtypes = [HWND, UINT, WPARAM, LPARAM] 
522      _SendMessageW.restype = LRESULT 
523      return _SendMessageW(hWnd, Msg, wParam, lParam) 
524   
525  SendMessage = GuessStringType(SendMessageA, SendMessageW) 
526   
527  # BOOL PostMessage( 
528  #     HWND hWnd, 
529  #     UINT Msg, 
530  #     WPARAM wParam, 
531  #     LPARAM lParam 
532  # ); 
533 -def PostMessageA(hWnd, Msg, wParam = 0, lParam = 0): 
534      _PostMessageA = windll.user32.PostMessageA 
535      _PostMessageA.argtypes = [HWND, UINT, WPARAM, LPARAM] 
536      _PostMessageA.restype = bool 
537      _PostMessageA.errcheck = RaiseIfZero 
538      _PostMessageA(hWnd, Msg, wParam, lParam) 
539   
540 -def PostMessageW(hWnd, Msg, wParam = 0, lParam = 0): 
541      _PostMessageW = windll.user32.PostMessageW 
542      _PostMessageW.argtypes = [HWND, UINT, WPARAM, LPARAM] 
543      _PostMessageW.restype = bool 
544      _PostMessageW.errcheck = RaiseIfZero 
545      _PostMessageW(hWnd, Msg, wParam, lParam) 
546   
547  PostMessage = GuessStringType(PostMessageA, PostMessageW) 
548   
549  # BOOL PostThreadMessage( 
550  #     DWORD idThread, 
551  #     UINT Msg, 
552  #     WPARAM wParam, 
553  #     LPARAM lParam 
554  # ); 
555 -def PostThreadMessageA(idThread, Msg, wParam = 0, lParam = 0): 
556      _PostThreadMessageA = windll.user32.PostThreadMessageA 
557      _PostThreadMessageA.argtypes = [DWORD, UINT, WPARAM, LPARAM] 
558      _PostThreadMessageA.restype = bool 
559      _PostThreadMessageA.errcheck = RaiseIfZero 
560      _PostThreadMessageA(idThread, Msg, wParam, lParam) 
561   
562 -def PostThreadMessageW(idThread, Msg, wParam = 0, lParam = 0): 
563      _PostThreadMessageW = windll.user32.PostThreadMessageW 
564      _PostThreadMessageW.argtypes = [DWORD, UINT, WPARAM, LPARAM] 
565      _PostThreadMessageW.restype = bool 
566      _PostThreadMessageW.errcheck = RaiseIfZero 
567      _PostThreadMessageW(idThread, Msg, wParam, lParam) 
568   
569  PostThreadMessage = GuessStringType(PostThreadMessageA, PostThreadMessageW) 
570   
571  # LRESULT c( 
572  #     HWND hWnd, 
573  #     UINT Msg, 
574  #     WPARAM wParam, 
575  #     LPARAM lParam, 
576  #     UINT fuFlags, 
577  #     UINT uTimeout, 
578  #     PDWORD_PTR lpdwResult 
579  # ); 
580 -def SendMessageTimeoutA(hWnd, Msg, wParam = 0, lParam = 0, fuFlags = 0, uTimeout = 0): 
581      _SendMessageTimeoutA = windll.user32.SendMessageTimeoutA 
582      _SendMessageTimeoutA.argtypes = [HWND, UINT, WPARAM, LPARAM, UINT, UINT, PDWORD_PTR] 
583      _SendMessageTimeoutA.restype = LRESULT 
584      dwResult = DWORD(0) 
585      success = _SendMessageTimeoutA(hWnd, Msg, wParam, lParam, fuFlags, uTimeout, ctypes.byref(dwResult)) 
586      if success == 0: 
587          raise ctypes.WinError() 
588      return dwResult.value 
589   
590 -def SendMessageTimeoutW(hWnd, Msg, wParam = 0, lParam = 0): 
591      _SendMessageTimeoutW = windll.user32.SendMessageTimeoutW 
592      _SendMessageTimeoutW.argtypes = [HWND, UINT, WPARAM, LPARAM, UINT, UINT, PDWORD_PTR] 
593      _SendMessageTimeoutW.restype = LRESULT 
594      dwResult = DWORD(0) 
595      success = _SendMessageTimeoutW(hWnd, Msg, wParam, lParam, fuFlags, uTimeout, ctypes.byref(dwResult)) 
596      if success == 0: 
597          raise ctypes.WinError() 
598      return dwResult.value 
599   
600  SendMessageTimeout = GuessStringType(SendMessageTimeoutA, SendMessageTimeoutW) 
601   
602  # BOOL SendNotifyMessage( 
603  #     HWND hWnd, 
604  #     UINT Msg, 
605  #     WPARAM wParam, 
606  #     LPARAM lParam 
607  # ); 
608 -def SendNotifyMessageA(hWnd, Msg, wParam = 0, lParam = 0): 
609      _SendNotifyMessageA = windll.user32.SendNotifyMessageA 
610      _SendNotifyMessageA.argtypes = [HWND, UINT, WPARAM, LPARAM] 
611      _SendNotifyMessageA.restype = bool 
612      _SendNotifyMessageA.errcheck = RaiseIfZero 
613      _SendNotifyMessageA(hWnd, Msg, wParam, lParam) 
614   
615 -def SendNotifyMessageW(hWnd, Msg, wParam = 0, lParam = 0): 
616      _SendNotifyMessageW = windll.user32.SendNotifyMessageW 
617      _SendNotifyMessageW.argtypes = [HWND, UINT, WPARAM, LPARAM] 
618      _SendNotifyMessageW.restype = bool 
619      _SendNotifyMessageW.errcheck = RaiseIfZero 
620      _SendNotifyMessageW(hWnd, Msg, wParam, lParam) 
621   
622  SendNotifyMessage = GuessStringType(SendNotifyMessageA, SendNotifyMessageW) 
623   
624  # LRESULT SendDlgItemMessage( 
625  #     HWND hDlg, 
626  #     int nIDDlgItem, 
627  #     UINT Msg, 
628  #     WPARAM wParam, 
629  #     LPARAM lParam 
630  # ); 
631 -def SendDlgItemMessageA(hDlg, nIDDlgItem, Msg, wParam = 0, lParam = 0): 
632      _SendDlgItemMessageA = windll.user32.SendDlgItemMessageA 
633      _SendDlgItemMessageA.argtypes = [HWND, ctypes.c_int, UINT, WPARAM, LPARAM] 
634      _SendDlgItemMessageA.restype = LRESULT 
635      return _SendDlgItemMessageA(hDlg, nIDDlgItem, Msg, wParam, lParam) 
636   
637 -def SendDlgItemMessageW(hDlg, nIDDlgItem, Msg, wParam = 0, lParam = 0): 
638      _SendDlgItemMessageW = windll.user32.SendDlgItemMessageW 
639      _SendDlgItemMessageW.argtypes = [HWND, ctypes.c_int, UINT, WPARAM, LPARAM] 
640      _SendDlgItemMessageW.restype = LRESULT 
641      return _SendDlgItemMessageW(hDlg, nIDDlgItem, Msg, wParam, lParam) 
642   
643  SendDlgItemMessage = GuessStringType(SendDlgItemMessageA, SendDlgItemMessageW) 
644   
645  # UINT RegisterWindowMessage( 
646  #     LPCTSTR lpString 
647  # ); 
648 -def RegisterWindowMessageA(lpString): 
649      _RegisterWindowMessageA = windll.user32.RegisterWindowMessageA 
650      _RegisterWindowMessageA.argtypes = [LPSTR] 
651      _RegisterWindowMessageA.restype = UINT 
652   
653      lpString = ctypes.create_string_buffer(lpString) 
654      uMsg = _RegisterWindowMessageA(lpString) 
655      if uMsg == 0: 
656          raise ctypes.WinError() 
657      return uMsg 
658   
659 -def RegisterWindowMessageW(lpString): 
660      _RegisterWindowMessageW = windll.user32.RegisterWindowMessageW 
661      _RegisterWindowMessageW.argtypes = [LPWSTR] 
662      _RegisterWindowMessageW.restype = UINT 
663   
664      lpString = ctypes.create_unicode_buffer(lpString) 
665      uMsg = _RegisterWindowMessageW(lpString) 
666      if uMsg == 0: 
667          raise ctypes.WinError() 
668      return uMsg 
669   
670  RegisterWindowMessage = GuessStringType(RegisterWindowMessageA, RegisterWindowMessageW) 
671