我们从Python开源项目中,提取了以下9个代码示例,用于说明如何使用win32con.GWL_WNDPROC。
def __init__ (self): wx.Frame.__init__ (self, None, title="Clipboard viewer", size=(250,150)) self.first = True self.nextWnd = None # Get native window handle of this wxWidget Frame. self.hwnd = self.GetHandle () # Set the WndProc to our function. self.oldWndProc = win32gui.SetWindowLong (self.hwnd, win32con.GWL_WNDPROC, self.MyWndProc) try: self.nextWnd = win32clipboard.SetClipboardViewer (self.hwnd) except win32api.error: if win32api.GetLastError () == 0: # information that there is no other window in chain pass else: raise
def MyWndProc (self, hWnd, msg, wParam, lParam): if msg == win32con.WM_CHANGECBCHAIN: self.OnChangeCBChain (msg, wParam, lParam) elif msg == win32con.WM_DRAWCLIPBOARD: self.OnDrawClipboard (msg, wParam, lParam) # Restore the old WndProc. Notice the use of win32api # instead of win32gui here. This is to avoid an error due to # not passing a callable object. if msg == win32con.WM_DESTROY: if self.nextWnd: win32clipboard.ChangeClipboardChain (self.hwnd, self.nextWnd) else: win32clipboard.ChangeClipboardChain (self.hwnd, 0) win32api.SetWindowLong (self.hwnd, win32con.GWL_WNDPROC, self.oldWndProc) # Pass all messages (in this case, yours may be different) on # to the original WndProc return win32gui.CallWindowProc (self.oldWndProc, hWnd, msg, wParam, lParam)
def _CreateMainWindow(self, prev, settings, browser, rect): # Creates a parent window that hosts the view window. This window # gets the control notifications etc sent from the child. style = win32con.WS_CHILD | win32con.WS_VISIBLE # wclass_name = "ShellViewDemo_DefView" # Register the Window class. wc = win32gui.WNDCLASS() wc.hInstance = win32gui.dllhandle wc.lpszClassName = wclass_name wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW try: win32gui.RegisterClass(wc) except win32gui.error, details: # Should only happen when this module is reloaded if details[0] != winerror.ERROR_CLASS_ALREADY_EXISTS: raise message_map = { win32con.WM_DESTROY: self.OnDestroy, win32con.WM_COMMAND: self.OnCommand, win32con.WM_NOTIFY: self.OnNotify, win32con.WM_CONTEXTMENU: self.OnContextMenu, win32con.WM_SIZE: self.OnSize, } self.hwnd = win32gui.CreateWindow( wclass_name, "", style, \ rect[0], rect[1], rect[2]-rect[0], rect[3]-rect[1], self.hwnd_parent, 0, win32gui.dllhandle, None) win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, message_map) print "View 's hwnd is", self.hwnd return self.hwnd
def CreateViewWindow(self, prev, settings, browser, rect): print "ScintillaShellView.CreateViewWindow", prev, settings, browser, rect # Make sure scintilla.dll is loaded. If not, find it on sys.path # (which it generally is for Pythonwin) try: win32api.GetModuleHandle("Scintilla.dll") except win32api.error: for p in sys.path: fname = os.path.join(p, "Scintilla.dll") if not os.path.isfile(fname): fname = os.path.join(p, "Build", "Scintilla.dll") if os.path.isfile(fname): win32api.LoadLibrary(fname) break else: raise RuntimeError("Can't find scintilla!") style = win32con.WS_CHILD | win32con.WS_VSCROLL | \ win32con.WS_HSCROLL | win32con.WS_CLIPCHILDREN | \ win32con.WS_VISIBLE self.hwnd = win32gui.CreateWindow("Scintilla", "Scintilla", style, rect[0], rect[1], rect[2]-rect[0], rect[3]-rect[1], self.hwnd_parent, 1000, 0, None) message_map = { win32con.WM_SIZE: self.OnSize, } # win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, message_map) file_data = file(self.filename, "U").read() self._SetupLexer() self._SendSci(scintillacon.SCI_ADDTEXT, len(file_data), file_data) if self.lineno != None: self._SendSci(scintillacon.SCI_GOTOLINE, self.lineno) print "Scintilla's hwnd is", self.hwnd
def _CreateMainWindow(self, prev, settings, browser, rect): # Creates a parent window that hosts the view window. This window # gets the control notifications etc sent from the child. style = win32con.WS_CHILD | win32con.WS_VISIBLE # wclass_name = "ShellViewDemo_DefView" # Register the Window class. wc = win32gui.WNDCLASS() wc.hInstance = win32gui.dllhandle wc.lpszClassName = wclass_name wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW try: win32gui.RegisterClass(wc) except win32gui.error as details: # Should only happen when this module is reloaded if details[0] != winerror.ERROR_CLASS_ALREADY_EXISTS: raise message_map = { win32con.WM_DESTROY: self.OnDestroy, win32con.WM_COMMAND: self.OnCommand, win32con.WM_NOTIFY: self.OnNotify, win32con.WM_CONTEXTMENU: self.OnContextMenu, win32con.WM_SIZE: self.OnSize, } self.hwnd = win32gui.CreateWindow( wclass_name, "", style, \ rect[0], rect[1], rect[2]-rect[0], rect[3]-rect[1], self.hwnd_parent, 0, win32gui.dllhandle, None) win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, message_map) print("View 's hwnd is", self.hwnd) return self.hwnd
def CreateViewWindow(self, prev, settings, browser, rect): print("ScintillaShellView.CreateViewWindow", prev, settings, browser, rect) # Make sure scintilla.dll is loaded. If not, find it on sys.path # (which it generally is for Pythonwin) try: win32api.GetModuleHandle("Scintilla.dll") except win32api.error: for p in sys.path: fname = os.path.join(p, "Scintilla.dll") if not os.path.isfile(fname): fname = os.path.join(p, "Build", "Scintilla.dll") if os.path.isfile(fname): win32api.LoadLibrary(fname) break else: raise RuntimeError("Can't find scintilla!") style = win32con.WS_CHILD | win32con.WS_VSCROLL | \ win32con.WS_HSCROLL | win32con.WS_CLIPCHILDREN | \ win32con.WS_VISIBLE self.hwnd = win32gui.CreateWindow("Scintilla", "Scintilla", style, rect[0], rect[1], rect[2]-rect[0], rect[3]-rect[1], self.hwnd_parent, 1000, 0, None) message_map = { win32con.WM_SIZE: self.OnSize, } # win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, message_map) file_data = file(self.filename, "U").read() self._SetupLexer() self._SendSci(scintillacon.SCI_ADDTEXT, len(file_data), file_data) if self.lineno != None: self._SendSci(scintillacon.SCI_GOTOLINE, self.lineno) print("Scintilla's hwnd is", self.hwnd)
def WndProcManage(wnd): if not hasattr(wnd, 'GetHandle'): return False # Make a dictionary of message names to be used for printing below if PRINT_MESSAGES: msgdict = dict() for name in dir(win32con): if name.startswith('WM_'): value = getattr(win32con, name) msgdict[value] = name _oldWndProc = win32gui.GetWindowLong(wnd.GetHandle(), win32con.GWL_WNDPROC) def MyWndProc(self, hwnd, msg, wParam, lParam): # Display what we've got. if PRINT_MESSAGES: print (msgdict.get(msg), msg, wParam, lParam) # Restore the old WndProc. Notice the use of win32api # instead of win32gui here. This is to avoid an error due to # not passing a callable object. if msg == win32con.WM_DESTROY: win32api.SetWindowLong(self.GetHandle(), win32con.GWL_WNDPROC, _oldWndProc) stopproc = False for cb, cbtrigger in CALLBACKS[self]: if cbtrigger(self, msg, wParam, lParam): if not cb(self, msg, wParam, lParam): stopproc = True break if stopproc: return # Pass all messages (in this case, yours may be different) on to # the original WndProc return win32gui.CallWindowProc(_oldWndProc, hwnd, msg, wParam, lParam) # Bind the function to the passed object _newWndProc = MyWndProc.__get__(wnd, wnd.__class__) # Set the WndProc to our function win32gui.SetWindowLong(wnd.GetHandle(), win32con.GWL_WNDPROC, _newWndProc) return True