Python/win32com - 检查程序是否打开 [英] Python/win32com - Check if Program is Open

问题描述

我有一个脚本，我在其中使用 win32com 与 COM 服务进行交互.当程序已经打开时，它按预期工作.我使用 win32com.client.dynamic.Dispatch 连接到它，然后与应该已经打开的文档进行交互.假设程序已经打开，我可以轻松检查文档是否打开，但我不确定如何检查程序是否已经打开.当我使用提到的 Dispatch 时，如果程序尚未打开，它只会启动程序，这不是我想要的.

I have a script where I use win32com to interact with a COM service. It works as intended when the program is already open. I connect to it using win32com.client.dynamic.Dispatch, then interact with a document that should already be open. Assuming the program is already open, I can easily check if a document is open, but I'm not sure how to check if the program is already open or not. When I use the Dispatch mentioned, it just starts the program if it isn't already open, which is not what I want.

推荐答案

试试 win32com.client.GetActiveObject() 方法.这是我在我编写的一些便利函数中使用的，这个是用于 Excel 的:

try win32com.client.GetActiveObject() method. This is what I use in some convenience functions I've written, this one for Excel:

def Excel(visible=True):
    '''Get running Excel instance if possible, else 
    return new instance. 
    '''
    try: 
        excel = win32com.client.GetActiveObject("Excel.Application")
        print("Running Excel instance found, returning object")

    except:
        excel = new_Excel(visible=visible)
        print("No running Excel instances, returning new instance")

    else:
        if not excel.Workbooks.Count:
            excel.Workbooks.Add(1)
        excel.Visible = visible

    return excel

new_Excel 只是用于打开 Excel 应用程序对象的新实例的另一个便利函数.

new_Excel is just another convenience function for opening new instances of the Excel application object.

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