Get the handle of a Textbox from another application

[Iker14]

Hi Everyone

I´ve been trying to use the function FindWindowEx and FindWindow to find a textbox from another aplication, but I have a problem, with the spy ++ i have this:

handle-"Main Window"-ThunderRT6FormDC
handle-""-ThunderRT6Frame
handle-""-ThunderRT6Frame
handle-""-ThunderRT6TextBox
handle-""-ThunderRT6TextBox
handle-""-ThunderRT6TextBox

I found the hanlde of the main window, then i search for the second ThunderRT6Frame with FindWindowEx,
but i only get the handle of the first one.

Here is my code:

IntPtr Main_handle = FindWindow("ThunderRT6FormDC", "Main Window");

if(Main_handle != IntPtr.Zero){
IntPtr Frame2_handle = FindWindowEx(Main_handle, IntPtr.Zero, "ThunderRT6Frame", IntPtr.Zero);

is there a way to pass to the second ThunderRT6Frame, and then get the handle of the third ThunderRT6TextBox?


Thank you
Iker14