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# A demo plugin for Microsoft Excel
#
# This addin simply adds a new button to the main Excel toolbar,
# and displays a message box when clicked. Thus, it demonstrates
# how to plug in to Excel itself, and hook Excel events.
#
#
# To register the addin, simply execute:
# excelAddin.py
# This will install the COM server, and write the necessary
# AddIn key to Excel
#
# To unregister completely:
# excelAddin.py --unregister
#
# To debug, execute:
# excelAddin.py --debug
#
# Then open Pythonwin, and select "Tools->Trace Collector Debugging Tool"
# Restart excel, and you should see some output generated.
#
# NOTE: If the AddIn fails with an error, Excel will re-register
# the addin to not automatically load next time Excel starts. To
# correct this, simply re-register the addin (see above)
#
# Author <ekoome@yahoo.com> Eric Koome
# Copyright (c) 2003 Wavecom Inc. All rights reserved
#
# Redistribution and use in source and binary forms, with or without
#modification, are permitted provided that the following conditions
#are met:
#
#1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL ERIC KOOME OR
# ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
from win32com import universal
from win32com.server.exception import COMException
from win32com.client import gencache, DispatchWithEvents
import winerror
import pythoncom
from win32com.client import constants, Dispatch
import sys
# Support for COM objects we use.
gencache.EnsureModule('{00020813-0000-0000-C000-000000000046}', 0, 1, 3, bForDemand=True) # Excel 9
gencache.EnsureModule('{2DF8D04C-5BFA-101B-BDE5-00AA0044DE52}', 0, 2, 1, bForDemand=True) # Office 9
# The TLB defiining the interfaces we implement
universal.RegisterInterfaces('{AC0714F2-3D04-11D1-AE7D-00A0C90F26F4}', 0, 1, 0, ["_IDTExtensibility2"])
class ButtonEvent:
def OnClick(self, button, cancel):
import win32ui # Possible, but not necessary, to use a Pythonwin GUI
import win32con
win32ui.MessageBox("Hello from Python", "Python Test",win32con.MB_OKCANCEL)
return cancel
class ExcelAddin:
_com_interfaces_ = ['_IDTExtensibility2']
_public_methods_ = []
_reg_clsctx_ = pythoncom.CLSCTX_INPROC_SERVER
_reg_clsid_ = "{C5482ECA-F559-45A0-B078-B2036E6F011A}"
_reg_progid_ = "Python.Test.ExcelAddin"
_reg_policy_spec_ = "win32com.server.policy.EventHandlerPolicy"
def __init__(self):
self.appHostApp = None
def OnConnection(self, application, connectMode, addin, custom):
print("OnConnection", application, connectMode, addin, custom)
try:
self.appHostApp = application
cbcMyBar = self.appHostApp.CommandBars.Add(Name="PythonBar", Position=constants.msoBarTop, MenuBar=constants.msoBarTypeNormal, Temporary=True)
btnMyButton = cbcMyBar.Controls.Add(Type=constants.msoControlButton, Parameter="Greetings")
btnMyButton=self.toolbarButton = DispatchWithEvents(btnMyButton, ButtonEvent)
btnMyButton.Style = constants.msoButtonCaption
btnMyButton.BeginGroup = True
btnMyButton.Caption = "&Python"
btnMyButton.TooltipText = "Python rules the World"
btnMyButton.Width = "34"
cbcMyBar.Visible = True
except pythoncom.com_error as xxx_todo_changeme:
(hr, msg, exc, arg) = xxx_todo_changeme.args
print("The Excel call failed with code %d: %s" % (hr, msg))
if exc is None:
print("There is no extended error information")
else:
wcode, source, text, helpFile, helpId, scode = exc
print("The source of the error is", source)
print("The error message is", text)
print("More info can be found in %s (id=%d)" % (helpFile, helpId))
def OnDisconnection(self, mode, custom):
print("OnDisconnection")
self.appHostApp.CommandBars("PythonBar").Delete
self.appHostApp=None
def OnAddInsUpdate(self, custom):
print("OnAddInsUpdate", custom)
def OnStartupComplete(self, custom):
print("OnStartupComplete", custom)
def OnBeginShutdown(self, custom):
print("OnBeginShutdown", custom)
def RegisterAddin(klass):
import winreg
key = winreg.CreateKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Office\\Excel\\Addins")
subkey = winreg.CreateKey(key, klass._reg_progid_)
winreg.SetValueEx(subkey, "CommandLineSafe", 0, winreg.REG_DWORD, 0)
winreg.SetValueEx(subkey, "LoadBehavior", 0, winreg.REG_DWORD, 3)
winreg.SetValueEx(subkey, "Description", 0, winreg.REG_SZ, "Excel Addin")
winreg.SetValueEx(subkey, "FriendlyName", 0, winreg.REG_SZ, "A Simple Excel Addin")
def UnregisterAddin(klass):
import winreg
try:
winreg.DeleteKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Office\\Excel\\Addins\\" + klass._reg_progid_)
except WindowsError:
pass
if __name__ == '__main__':
import win32com.server.register
win32com.server.register.UseCommandLine(ExcelAddin)
if "--unregister" in sys.argv:
UnregisterAddin(ExcelAddin)
else:
RegisterAddin(ExcelAddin)