Capture WindowClass #32770

Question

I am new in C#, i've got some problem to capture any windows dialog show in my server. I need to know the message (caption and title) from windows dialog so i can write to my application log.

I know that i must find #32770 class windows, but i do not know how to enumwindows. In delphi 7, the code should use some functions like:

Enumwindows
EnumProcess
Enumchildwindows
Enumchildwindowsproc
Getwindowthreadprocessid
GetClassName
Getwindowtext

Is there any solution for this ?

You'll see an example of findDialog in [this code](http://stackoverflow.com/questions/2576156/winforms-how-can-i-make-messagebox-appear-centered-on-mainform/2576220#2576220). Trying to tinker with other programs when you are just starting out learning how to program is a very common goal. Always a bad idea however, you have to learn *three* brand-new things. Keep the winapi and pinvoke on the shelf for a while until you've mastered C# first. — Hans Passant, Dec 23 '13 at 08:56
@Hans Passant thanks you for your suggestions. C# likes a new jungle to me. Very different from pascal - delphi or vb classic. — Mangs, Dec 24 '13 at 03:29

Tony · Accepted Answer · 2013-12-23T08:45:45.077

3

You can use windows API in C# as well. You can find a lot information and examples of using here. And here is information about DllImport attribute.

You can try something like:

class Program
{
    [DllImport("user32.dll", SetLastError = true)]
    public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, string windowTitle);

    static void Main(string[] args)
    {
        var handle = IntPtr.Zero;
        do
        {
            handle = FindWindowEx(IntPtr.Zero, handle, "#32770", null);
            if (handle != IntPtr.Zero )
                Console.WriteLine("Found handle: {0:X}", handle.ToInt64());
        } while (handle != IntPtr.Zero);


        Console.ReadLine();
    }
}

edited Dec 23 '13 at 08:45

answered Dec 23 '13 at 08:10

Tony

7,345
3
26
34

is this findwindowex will capture all window dialog ? (i.e. if i open task manager and Date and Time Properties, with findwindowex, i will get 2 #32770 class window. is that right ? – Mangs Dec 23 '13 at 08:31
@Mangs Yes, see my updated answer. It shows how to enum all such windows. – Tony Dec 23 '13 at 08:46
Thanks, with this code, i also get title and child's caption too. – Mangs Dec 24 '13 at 03:31

Capture WindowClass #32770

1 Answers1