Get text from other window

This is a discussion on Get text from other window within the Windows Programming forums, part of the Platform Specific Boards category; Hello, I have a problem, I need to read text from a text box in another application. Using Spy++ I ...

  1. #1
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    Get text from other window

    Hello,
    I have a problem, I need to read text from a text box in another application.
    Using Spy++ I found that the text box's class is Internet Explorer_Server
    I tried SendMessage and a few other functions but it didn't work.

    Thanks in advance.
    Last edited by Adrian++; 08-03-2008 at 11:36 AM.

  2. #2
    C++まいる!Cをこわせ! Elysia's Avatar
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    GetWindowText API function.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  3. #3
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    GetWindowText can get only the Text from the main window (if you give it a HWND from another process)

  4. #4
    C++まいる!Cをこわせ! Elysia's Avatar
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    No, that's incorrect. Pass the correct HWND to GetWindowText and it will retrieve the text.
    It works with edit controls, as well.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  5. #5
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    Quote Originally Posted by Elysia View Post
    No, that's incorrect. Pass the correct HWND to GetWindowText and it will retrieve the text.
    It works with edit controls, as well.
    No.
    Read the doc :"GetWindowText cannot retrieve the text of a control in another application."
    Use any other known method

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    I'm not sure if will can work with textboxes but anyways, you can also use pipes.

  7. #7
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    Here is a thread that discusses this issue in detail

  8. #8
    C++まいる!Cをこわせ! Elysia's Avatar
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    As I seem to recall, GetWindowText just sends WM_GETTEXT, which is the method to retrieve the text from a control (indeed, I have been doing this for ages using MFC).
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

  9. #9
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    (I think) He wants to get text from an application which is not related to his. I dont know of any basic API function for this, you'd probably need some sort of hook to intercept the text flowing to the other programs controls.
    Code:
    Error W8057 C:\\Life.cpp: Invalid number of arguments in function run(Brain *)

  10. #10
    C++まいる!Cをこわせ! Elysia's Avatar
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    So what you are implying is that you can't use GetWindowText for controls outside your own window?
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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