How to differenciate?

[FISH786]

Hello, I am trying to capture a window from an external App Example Calculator. I am able to get the handle of the window. If the user opens a second instance, I am able to get that handle too using EnumWindows. Which means I have 2 handles for the 2 calculators. Short of using the Handle is there anything else that I could use to differenciate the 2 windows. I can't use the window title since they are both the same. Reason for asking: I know the handle gets reused, but is it possible for the handle to change after the window has been created or does it stay the same after creation? Yes, if I close the window, I know I will not get the same handle. Is it possible that If the user minimizes the window and activates it again, we get a new handle? If the handle changes during the lifetime of the window whats the best way of keeping track of that window? I have created a thread and am using the same function to handle capturing data from the 2 windows by passing the handle as a parameter. However, I can only get the data from one of the windows, or am I better off creating multiple threads which is what I was avoiding? Could someone please help.

[Stuart Dootson]

FISH786 wrote:

but is it possible for the handle to change after the window has been created or does it stay the same after creation

AFAIK, a window handle doesn't change over the lifetime of a window.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

[FISH786]

Thanks again. which is what I thought but wanted to be sure. I guess back to debugging and find out why I can't get the data from the second window. However, I should be able to use the same thread and pass the handle as a parameter? or am I better off creating multiple threads and dedicate each thread to a window for the lifetime of that particular window?