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# Creates a task-bar icon. Run from Python.exe to see the
# messages printed.
import os
import sys
import win32api
import win32con
import win32gui
import winerror
class MainWindow:
def __init__(self):
msg_TaskbarRestart = win32gui.RegisterWindowMessage("TaskbarCreated")
message_map = {
msg_TaskbarRestart: self.OnRestart,
win32con.WM_DESTROY: self.OnDestroy,
win32con.WM_COMMAND: self.OnCommand,
win32con.WM_USER + 20: self.OnTaskbarNotify,
}
# Register the Window class.
wc = win32gui.WNDCLASS()
hinst = wc.hInstance = win32api.GetModuleHandle(None)
wc.lpszClassName = "PythonTaskbarDemo"
wc.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW
wc.hCursor = win32api.LoadCursor(0, win32con.IDC_ARROW)
wc.hbrBackground = win32con.COLOR_WINDOW
wc.lpfnWndProc = message_map # could also specify a wndproc.
# Don't blow up if class already registered to make testing easier
try:
classAtom = win32gui.RegisterClass(wc)
except win32gui.error as err_info:
if err_info.winerror != winerror.ERROR_CLASS_ALREADY_EXISTS:
raise
# Create the Window.
style = win32con.WS_OVERLAPPED | win32con.WS_SYSMENU
self.hwnd = win32gui.CreateWindow(
wc.lpszClassName,
"Taskbar Demo",
style,
0,
0,
win32con.CW_USEDEFAULT,
win32con.CW_USEDEFAULT,
0,
0,
hinst,
None,
)
win32gui.UpdateWindow(self.hwnd)
self._DoCreateIcons()
def _DoCreateIcons(self):
# Try and find a custom icon
hinst = win32api.GetModuleHandle(None)
iconPathName = os.path.abspath(
os.path.join(os.path.split(sys.executable)[0], "pyc.ico")
)
if not os.path.isfile(iconPathName):
# Look in DLLs dir, a-la py 2.5
iconPathName = os.path.abspath(
os.path.join(os.path.split(sys.executable)[0], "DLLs", "pyc.ico")
)
if not os.path.isfile(iconPathName):
# Look in the source tree.
iconPathName = os.path.abspath(
os.path.join(os.path.split(sys.executable)[0], "..\\PC\\pyc.ico")
)
if os.path.isfile(iconPathName):
icon_flags = win32con.LR_LOADFROMFILE | win32con.LR_DEFAULTSIZE
hicon = win32gui.LoadImage(
hinst, iconPathName, win32con.IMAGE_ICON, 0, 0, icon_flags
)
else:
print("Can't find a Python icon file - using default")
hicon = win32gui.LoadIcon(0, win32con.IDI_APPLICATION)
flags = win32gui.NIF_ICON | win32gui.NIF_MESSAGE | win32gui.NIF_TIP
nid = (self.hwnd, 0, flags, win32con.WM_USER + 20, hicon, "Python Demo")
try:
win32gui.Shell_NotifyIcon(win32gui.NIM_ADD, nid)
except win32gui.error:
# This is common when windows is starting, and this code is hit
# before the taskbar has been created.
print("Failed to add the taskbar icon - is explorer running?")
# but keep running anyway - when explorer starts, we get the
# TaskbarCreated message.
def OnRestart(self, hwnd, msg, wparam, lparam):
self._DoCreateIcons()
def OnDestroy(self, hwnd, msg, wparam, lparam):
nid = (self.hwnd, 0)
win32gui.Shell_NotifyIcon(win32gui.NIM_DELETE, nid)
win32gui.PostQuitMessage(0) # Terminate the app.
def OnTaskbarNotify(self, hwnd, msg, wparam, lparam):
if lparam == win32con.WM_LBUTTONUP:
print("You clicked me.")
elif lparam == win32con.WM_LBUTTONDBLCLK:
print("You double-clicked me - goodbye")
win32gui.DestroyWindow(self.hwnd)
elif lparam == win32con.WM_RBUTTONUP:
print("You right clicked me.")
menu = win32gui.CreatePopupMenu()
win32gui.AppendMenu(menu, win32con.MF_STRING, 1023, "Display Dialog")
win32gui.AppendMenu(menu, win32con.MF_STRING, 1024, "Say Hello")
win32gui.AppendMenu(menu, win32con.MF_STRING, 1025, "Exit program")
pos = win32gui.GetCursorPos()
# See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/menus_0hdi.asp
win32gui.SetForegroundWindow(self.hwnd)
win32gui.TrackPopupMenu(
menu, win32con.TPM_LEFTALIGN, pos[0], pos[1], 0, self.hwnd, None
)
win32gui.PostMessage(self.hwnd, win32con.WM_NULL, 0, 0)
return 1
def OnCommand(self, hwnd, msg, wparam, lparam):
id = win32api.LOWORD(wparam)
if id == 1023:
import win32gui_dialog
win32gui_dialog.DemoModal()
elif id == 1024:
print("Hello")
elif id == 1025:
print("Goodbye")
win32gui.DestroyWindow(self.hwnd)
else:
print("Unknown command -", id)
def main():
w = MainWindow()
win32gui.PumpMessages()
if __name__ == "__main__":
main()