我正在尝试使用pywin32模块在玩游戏时创建更具互动性的体验,但我遇到了一些问题.我希望不止一次使用WindowsBalloonTip类,但在尝试再次使用它时遇到问题.
class WindowsBalloonTip:
def __init__(self, title, msg):
message_map = {
win32con.WM_DESTROY: self.OnDestroy,
}
# Register the Window class.
wc = WNDCLASS()
hinst = wc.hInstance = GetModuleHandle(None)
wc.lpszClassName = "PythonTaskbar"
wc.lpfnWndProc = message_map # could also specify a wndproc.
classAtom = RegisterClass(wc)
# Create the Window.
style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
self.hwnd = CreateWindow( classAtom, "Taskbar", style, \
0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT, \
0, 0, hinst, None)
UpdateWindow(self.hwnd)
iconPathName = os.path.abspath(os.path.join( sys.path[0], "balloontip.ico" ))
icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE
try:
hicon = LoadImage(hinst, iconPathName, \
win32con.IMAGE_ICON, 0, 0, icon_flags)
except:
hicon = LoadIcon(0, win32con.IDI_APPLICATION)
flags = NIF_ICON | NIF_MESSAGE | NIF_TIP
nid = (self.hwnd, 0, flags, win32con.WM_USER+20, hicon, "tooltip")
Shell_NotifyIcon(NIM_ADD, nid)
Shell_NotifyIcon(NIM_MODIFY, \
(self.hwnd, 0, NIF_INFO, win32con.WM_USER+20,\
hicon, "Balloon tooltip",msg,200,title))
# self.show_balloon(title, msg)
DestroyWindow(self.hwnd)
def OnDestroy(self, hwnd, msg, wparam, lparam):
nid = (self.hwnd, 0)
Shell_NotifyIcon(NIM_DELETE, nid)
PostQuitMessage(0) # Terminate the app.
def balloon_tip(title, msg):
w=WindowsBalloonTip(title, msg)
要调用WindowsBalloonTip,我使用:
balloon_tip("Fantasy Text", "Welcome to Fantasy Text!")
但是后来当我再次尝试使用balloon_tip时,我遇到了这个错误:
Traceback (most recent call last):
File "C:\Users\austin\Documents\Programming\Fantasy Text\v1.0.1.0\Fantasy Text.py", line 456, in <module>
Start()
File "C:\Users\austin\Documents\Programming\Fantasy Text\v1.0.1.0\Fantasy Text.py", line 89, in Start
Zombie_Mode()
File "C:\Users\austin\Documents\Programming\Fantasy Text\v1.0.1.0\Fantasy Text.py", line 224, in Zombie_Mode
Zombie_Attack()
File "C:\Users\austin\Documents\Programming\Fantasy Text\v1.0.1.0\Fantasy Text.py", line 240, in Zombie_Attack
balloon_tip("FT: Zombie", "Zombie did %s" % zombie_damage + ' damage!')
File "C:\Users\austin\Documents\Programming\Fantasy Text\v1.0.1.0\Fantasy Text.py", line 60, in balloon_tip
w=WindowsBalloonTip(title, msg)
File "C:\Users\austin\Documents\Programming\Fantasy Text\v1.0.1.0\Fantasy Text.py", line 32, in __init__
classAtom = RegisterClass(wc)
pywintypes.error: (1410, 'RegisterClass', 'Class already exists.')
我意识到这个类已经存在于给出的错误中,但我该如何解决这个问题呢?
解决方法:
只需稍微重构您的代码.创建一个WindowsBalloonTip实例并使用它来显示所有提示:
class WindowsBalloonTip:
def __init__(self):
message_map = {
win32con.WM_DESTROY: self.OnDestroy,
}
# Register the Window class.
wc = WNDCLASS()
self.hinst = wc.hInstance = GetModuleHandle(None)
wc.lpszClassName = "PythonTaskbar"
wc.lpfnWndProc = message_map # could also specify a wndproc.
self.classAtom = RegisterClass(wc)
def ShowWindow(self,title, msg):
# Create the Window.
style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
self.hwnd = CreateWindow( self.classAtom, "Taskbar", style, \
0, 0, win32con.CW_USEDEFAULT, win32con.CW_USEDEFAULT, \
0, 0, self.hinst, None)
UpdateWindow(self.hwnd)
iconPathName = os.path.abspath(os.path.join( sys.path[0], "balloontip.ico" ))
icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE
try:
hicon = LoadImage(self.hinst, iconPathName, \
win32con.IMAGE_ICON, 0, 0, icon_flags)
except:
hicon = LoadIcon(0, win32con.IDI_APPLICATION)
flags = NIF_ICON | NIF_MESSAGE | NIF_TIP
nid = (self.hwnd, 0, flags, win32con.WM_USER+20, hicon, "tooltip")
Shell_NotifyIcon(NIM_ADD, nid)
Shell_NotifyIcon(NIM_MODIFY, \
(self.hwnd, 0, NIF_INFO, win32con.WM_USER+20,\
hicon, "Balloon tooltip",msg,200,title))
# self.show_balloon(title, msg)
DestroyWindow(self.hwnd)
def OnDestroy(self, hwnd, msg, wparam, lparam):
nid = (self.hwnd, 0)
Shell_NotifyIcon(NIM_DELETE, nid)
PostQuitMessage(0) # Terminate the app.
w = WindowsBalloonTip()
w.ShowWindow("Title1","Message One!")
time.sleep(1) # some time later
w.ShowWindow("Title2","Message Two!")
标签:pywin32,python 来源: https://codeday.me/bug/20190829/1761793.html
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