修改程序以假按下按钮(Modifying a program to fake a button press)

 我有一个MFC应用程序（没有源代码）打开一个带有“更新”按钮的窗口，然后在单击后执行很长的更新。 
 
 我想修改程序，以便在创建窗口时（或其他地方，如DoModal），会向程序发送一条消息，使其认为按下按钮。 
 
 在Ida Pro和OllyDbg，我一直在玩这个有一段时间没有用。 我看了可能使用PumpMessage，但这并没有带来任何成功。 
 
 任何建议？ 

I have an MFC application that I was given (without source code) which opens a window with an 'Update' button, which then performs a very long update after being clicked.
 
I'd like to modify the program so that when the window is created (or somewhere else such as DoModal), a message is sent to the program to make it think that the button was pressed.
 
I've been toying around with this for a while in Ida Pro and OllyDbg to no avail. I looked at possibly using PumpMessage, but this did not bring any success.
 
Any advice?

原文：https://stackoverflow.com/questions/977045