wxPython 和 windows 7 任务栏
为了简洁起见:我正在尝试实现这个 使用 wxPython,但我正在努力将该代码放入基于 wxPython 的脚本中。
我的简单 PyQt 测试代码运行良好。如下:
from PyQt4 import QtGui
from threading import Thread
import time
import sys
import comtypes.client as cc
import comtypes.gen.TaskbarLib as tbl
TBPF_NOPROGRESS = 0
TBPF_INDETERMINATE = 0x1
TBPF_NORMAL = 0x2
TBPF_ERROR = 0x4
TBPF_PAUSED = 0x8
cc.GetModule("taskbar.tlb")
taskbar = cc.CreateObject("{56FDF344-FD6D-11d0-958A-006097C9A090}", interface=tbl.ITaskbarList3)
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.setWindowTitle("Test")
self.progress_bar = QtGui.QProgressBar(self)
self.setCentralWidget(self.progress_bar)
self.progress_bar.setRange(0, 100)
self.progress = 0
self.show()
thread = Thread(target=self.counter)
thread.setDaemon(True)
thread.start()
def counter(self):
while True:
self.progress += 1
if self.progress > 100:
self.progress = 0
time.sleep(.2)
self.progress_bar.setValue(self.progress)
taskbar.HrInit()
hWnd = self.winId()
taskbar.SetProgressState(hWnd, TBPF_ERROR)
taskbar.SetProgressValue(hWnd, self.progress, 100)
app = QtGui.QApplication(sys.argv)
ui = MainWindow()
sys.exit(app.exec_())
但是,当我尝试执行 wxPython 对应项时,任务栏无法按预期工作。这是 wxPython 代码:
import wx
import time
import comtypes.client as cc
import comtypes.gen.TaskbarLib as tbl
from threading import Thread
TBPF_NOPROGRESS = 0
TBPF_INDETERMINATE = 0x1
TBPF_NORMAL = 0x2
TBPF_ERROR = 0x4
TBPF_PAUSED = 0x8
cc.GetModule("taskbar.tlb")
taskbar = cc.CreateObject("{56FDF344-FD6D-11d0-958A-006097C9A090}", interface=tbl.ITaskbarList3)
class MainWindow(wx.Frame):
def __init__(self, parent, ID, title):
wx.Frame.__init__(self, parent, ID, title)
self.panel = wx.Panel(self)
self.gauge = wx.Gauge(self.panel)
self.gauge.SetValue(0)
self.progress = 0
self.Show()
thread = Thread(target=self.counter)
thread.setDaemon(True)
thread.start()
def counter(self):
while True:
self.progress += 1
if self.progress > 100:
self.progress = 0
time.sleep(.2)
self.gauge.SetValue(self.progress)
taskbar.HrInit()
hWnd = self.GetHandle()
taskbar.SetProgressState(hWnd, TBPF_ERROR)
taskbar.SetProgressValue(hWnd, self.progress, 100)
app = wx.PySimpleApp()
frame = MainWindow(None, wx.ID_ANY, "Test")
app.SetTopWindow(frame)
app.MainLoop()
特别是,我认为问题是由于 wxWindow 窗口句柄(hWnd)方法造成的,该方法与其 Qt 等效方法不同,前者返回一个整数,后者返回一个“sip.voidptr 对象”。
问题是我已经用 wxPython 编写了整个代码(1200 多行),因此我无法重新编写它以使用 Qt(更不用说不同的许可证)。
你对此有何看法?我应该放弃吗?
提前非常感谢:)
编辑
感谢罗伯特·奥康纳,现在它可以工作了。但是,我仍然不明白为什么 GetHandle
返回一个整数,而 winId
返回一个对象。在 .idl 文件中,参数 hwnd 在所有函数定义中都声明为 long
。也许这也是一个简单的问题;)有什么想法吗?
For brevity's sake: I'm trying to implement this with wxPython, but I'm struggling to fit that code into a script based on wxPython.
My simple PyQt test code works fine. Here it is:
from PyQt4 import QtGui
from threading import Thread
import time
import sys
import comtypes.client as cc
import comtypes.gen.TaskbarLib as tbl
TBPF_NOPROGRESS = 0
TBPF_INDETERMINATE = 0x1
TBPF_NORMAL = 0x2
TBPF_ERROR = 0x4
TBPF_PAUSED = 0x8
cc.GetModule("taskbar.tlb")
taskbar = cc.CreateObject("{56FDF344-FD6D-11d0-958A-006097C9A090}", interface=tbl.ITaskbarList3)
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.setWindowTitle("Test")
self.progress_bar = QtGui.QProgressBar(self)
self.setCentralWidget(self.progress_bar)
self.progress_bar.setRange(0, 100)
self.progress = 0
self.show()
thread = Thread(target=self.counter)
thread.setDaemon(True)
thread.start()
def counter(self):
while True:
self.progress += 1
if self.progress > 100:
self.progress = 0
time.sleep(.2)
self.progress_bar.setValue(self.progress)
taskbar.HrInit()
hWnd = self.winId()
taskbar.SetProgressState(hWnd, TBPF_ERROR)
taskbar.SetProgressValue(hWnd, self.progress, 100)
app = QtGui.QApplication(sys.argv)
ui = MainWindow()
sys.exit(app.exec_())
But, when I try to execute the wxPython counterpart, the taskbar doesn't work as expected. Here's the wxPython code:
import wx
import time
import comtypes.client as cc
import comtypes.gen.TaskbarLib as tbl
from threading import Thread
TBPF_NOPROGRESS = 0
TBPF_INDETERMINATE = 0x1
TBPF_NORMAL = 0x2
TBPF_ERROR = 0x4
TBPF_PAUSED = 0x8
cc.GetModule("taskbar.tlb")
taskbar = cc.CreateObject("{56FDF344-FD6D-11d0-958A-006097C9A090}", interface=tbl.ITaskbarList3)
class MainWindow(wx.Frame):
def __init__(self, parent, ID, title):
wx.Frame.__init__(self, parent, ID, title)
self.panel = wx.Panel(self)
self.gauge = wx.Gauge(self.panel)
self.gauge.SetValue(0)
self.progress = 0
self.Show()
thread = Thread(target=self.counter)
thread.setDaemon(True)
thread.start()
def counter(self):
while True:
self.progress += 1
if self.progress > 100:
self.progress = 0
time.sleep(.2)
self.gauge.SetValue(self.progress)
taskbar.HrInit()
hWnd = self.GetHandle()
taskbar.SetProgressState(hWnd, TBPF_ERROR)
taskbar.SetProgressValue(hWnd, self.progress, 100)
app = wx.PySimpleApp()
frame = MainWindow(None, wx.ID_ANY, "Test")
app.SetTopWindow(frame)
app.MainLoop()
In particular I think the issue is due to the wxWindow window handle (hWnd) method, that differ from its Qt equivalent, the former returning an integer and the latter a "sip.voidptr object".
The problem is that I already wrote the whole code (1200+ lines) with wxPython, thus i can't re-write it to use Qt (not to talk about the different licenses).
What do you think about it? Should I give up?
Thanks a lot in advance :)
EDIT
Thanks to Robert O'Connor, now it works. However, I still can't get why GetHandle
returns an integer while winId
returns an object. In the .idl file the argument hwnd is declared as long
in all the function definitions. Maybe this is a simple question too ;) Any Ideas?
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在以下行中:
您想要使用
GetHandle()
而不是GetId()
。编辑:这最初是作为评论发布的,但我想我重新发布作为答案会更合适。
关于对你的问题的编辑:如果它现在有效,我想就不再有问题了;)好吧,说真的..
Ints 和 Longs 在 Python 中是统一的,如果我不得不猜测 comtypes 可能会在后台做一些强制转换。我不知道在处理一般类型时是否有必要担心这些细节,但在这种情况下似乎并不重要。
现在我没有使用 PyQT 的经验,但在 Python 中,您可以在对象上定义特殊方法,例如 __int__ 和 __long__ 来模拟 Int 和 Long。如果我不得不猜测,您在 PyQT 中获取的对象定义了其中一种方法。
On the following line:
You want to use
GetHandle()
instead ofGetId()
.Edit: This was originally posted as a comment, but I suppose it would be more appropriate for me to repost as an answer.
Regarding the edit to your question: If it now works I guess there isn't a problem anymore ;) Okay, seriously though..
Ints and Longs are unified in Python and if I had to guess comtypes might be doing some coercion in the background. I don't know if it's necessary to worry about such details when dealing with comtypes in general, but it doesn't seem to matter much in this case.
Now I have no experience with PyQT, but in Python you can define special methods on objects such as
__int__
and__long__
to emulate, well, Ints and Longs. If I had to guess, the object you're getting in PyQT defines one of those methods.