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
python类GWL_WNDPROC的实例源码
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, 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
