在python中,可以对com/activex做什么?[关闭]

首先你必须安装好 pywin32 模块。

它提供COM支持。你需要运行 makepy 实用工具。它位于 C:\...\Python26\Lib\site-packages\win32com\client . 在Vista上,它必须以管理员权限运行。

此实用程序将显示所有可用的COM对象。您可以找到您的,它将为此对象生成一个Python包装器。

包装器是在 C:\...\Python26\Lib\site-packages\win32com\gen_py 文件夹。该模块包含COM对象的接口。文件名是COM唯一ID。如果有许多文件,有时很难找到正确的文件。

之后,您只需调用正确的接口。它很神奇:)

Excel的一个简短示例

import win32com.client

xlApp = win32com.client.Dispatch("Excel.Application")
xlApp.Visible=1

workBook = xlApp.Workbooks.Open(r"C:\MyTest.xls")
print str(workBook.ActiveSheet.Cells(i,1))
workBook.ActiveSheet.Cells(1, 1).Value = "hello"                
workBook.Close(SaveChanges=0) 
xlApp.Quit()

基本上,您可以执行相当于后期绑定的操作。所以任何通过IDispatch暴露的东西都可以被消耗掉。

这是我这个周末写的一些代码,通过Windows Image Acquisition 2.0从twain设备获取图像,并将数据放入基于GTK的用户界面中。

WIA_COM = "WIA.CommonDialog"
WIA_DEVICE_UNSPECIFIED = 0
WIA_INTENT_UNSPECIFIED = 0
WIA_BIAS_MIN_SIZE = 65536
WIA_IMG_FORMAT_PNG = "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}"

def acquire_image_wia():
    wia = win32com.client.Dispatch(WIA_COM)
    img = wia.ShowAcquireImage(WIA_DEVICE_UNSPECIFIED,
                           WIA_INTENT_UNSPECIFIED,
                           WIA_BIAS_MIN_SIZE,
                           WIA_IMG_FORMAT_PNG,
                           False,
                           True)
    fname = str(time.time())
    img.SaveFile(fname)
    buff = gtk.gdk.pixbuf_new_from_file(fname)
    os.remove(fname)

return buff

它不漂亮,但很管用。我会断言它相当于用VB编写的内容。

下面是一个工作解决方案,它创建一个文件并为单元格添加值:

 import win32com.client
import xlsxwriter
import os
cwd = os.getcwd()
file_path = cwd + "\\test.xlsx"

#Create an excel file
workbook = xlsxwriter.Workbook(file_path)
worksheet = workbook.add_worksheet()
workbook.close()

#Open an excel application
xlApp = win32com.client.Dispatch("Excel.Application")
xlApp.Visible=1


workBook = xlApp.Workbooks.Open(file_path)
print str(workBook.ActiveSheet.Cells(1,1))
workBook.ActiveSheet.Cells(1, 1).Value = "hello55"                
workBook.Close(SaveChanges=1) 
xlApp.Quit()

如何在Python3中接收ActiveX事件

# coding=utf8

from PyQt5.QAxContainer import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import QObject
import sys

TITLE = "CallX Python Example: accept any calls"
TrueConfCallX_Class = '{27EF4BA2-4500-4839-B88A-F2F4744FE56A}'

SERVER = '' # empty - connect to TrueConf Online cloud
USER = '<trueconf id>'
PASSWORD = '<password>'

class CallXWindow(QWidget):

    def __init__(self):
        QAxWidget.__init__(self)
        self.setWindowTitle(TITLE)
        self.move(400, 30)
# end of class CallXWindow(QWidget)


class ActiveXExtend(QObject):

    def __init__(self, view):
        super().__init__()
        self.view = view
        self.ocx = QAxWidget(TrueConfCallX_Class)

        self.ocx.move(0, 0)
        self.ocx.setFixedSize(640, 375)
        self.ocx.setParent(self.view)
        self.ocx.show()

        # receive some ActiveX events 
        self.ocx.OnXAfterStart.connect(self._OnXAfterStart)
        self.ocx.OnServerConnected[str].connect(self._OnServerConnected)
        self.ocx.OnLogin[str].connect(self._OnLogin)
        self.ocx.OnInviteReceived[str].connect(self._OnInviteReceived)
        self.ocx.OnXError[int, str].connect(self._OnXError)
        self.ocx.OnXLoginError[int].connect(self._OnXLoginError)

    # Events
    def _OnXAfterStart(self):
        print("**OnXAfterStart")
        # select devices
        self.ocx.XSetCameraByIndex(0)
        self.ocx.XSelectMicByIndex(0)
        self.ocx.XSelectSpeakerByIndex(0)
        # connect to server
        self.ocx.connectToServer(SERVER)

    def _OnServerConnected(self, eventDetails):
        print("**OnServerConnected")
        print(eventDetails)
        # login
        self.ocx.login(USER, PASSWORD)

    def _OnLogin(self, eventDetails):
        print("**OnLogin")

    def _OnInviteReceived(self, eventDetails):
        print("**OnInviteReceived")
        print(eventDetails)
        # accept any calls
        self.ocx.accept()

    def _OnXError(self, errorCode, errorMsg):
        print("**OnXError")
        print('{}. Code: {}'.format(errorMsg, errorCode))

    def _OnXLoginError(self, errorCode):
        print("**OnXLoginError")
        if errorCode == 8:
            print('Support for SDK Applications is not enabled on this server')
        else:
            print('Login error. Code: {}'.format(errorCode))
# end of class ActiveXExtend(QObject)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    MainWindow = CallXWindow()
    axwin = ActiveXExtend(MainWindow)
    MainWindow.show()
sys.exit(app.exec_())