等待应用程序窗口打开然后执行一些操作

Question

I am very new to C# but I am fast learning. I have seen various answers to this but I'm not sure they suite, or maybe I'm just not getting them.

I have a business requirement to write ac# app that sites in the system tray and runs when a certain action has been performed in Internet Explorer. This action (for now) is the opening of the about internet explorer window. I need the app to constantly monitor to see if this window is open and then run some code, an example would be close the about window and display a message box.

I have managed to get the system tray part working, how would i go about monitoring that the window exists?

EDIT To answer some of the questions in the comments: At work we use a booking system that only runs in IE, we are looking for a way to automate a section of our manual process, to do this we are thinking that we can have the following process: go to booking, click help > about, system tray app closes the window and runs some code to update the database. that's pretty much it.

I have had a look at some of the following: How to check if window is opned and close it c#: How do check if another application window is open on my machine (ie, iterate through all open windows)?

I think i understand that I have to look through the running processes and check there relevant programs properties to see if it has the correct window name? Im sure i can get that to work (eventually) however it was the waiting for that window to open part that i am stuck with, does C# have a waitfor or do i have to write a function to constantly check that window is open?

EDIT

I have accepted @Adrian's answer as it looks like it will do want i wanted; however after reading all the comments I went to my manager and we discussed this. We will now go down the route of having the user enter the booking number into the C# App its self via a text box in the right click menu. Thanks all.

Answer 1

You probably want to use the FindWindowEx API call

See here for example code:

http://www.pinvoke.net/default.aspx/user32/findwindowex.html

Then SendMessage to close the window.

http://www.pinvoke.net/default.aspx/user32/SendMessage.html

But you will be limited to what events you can capture/use from other applications...for security reasons. Unless the app specifically allows such interactions.

Answer 2

What you can do is to use AutoIt. It is a freeware desktop automation tool that also offers a .NET class library for integration. With this, you can check and wait until a certain window is opened fairly easy.

You can download this tool from here: https://www.autoitscript.com