Adding Text to an Edit

This is a discussion on Adding Text to an Edit within the Windows Programming forums, part of the Platform Specific Boards category; I searched the forums and found what code to use.... but im not sure about how to use it.... Code: ...

  1. #1
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    Adding Text to an Edit

    I searched the forums and found what code to use.... but im not sure about how to use it....

    Code:
    lResult = SendMessage(      // returns LRESULT in lResult
    (HWND) hWndControl,      // handle to destination control
    (UINT) WM_SETTEXT,      // message ID
    (WPARAM) wParam,      // = (WPARAM) () wParam;    
    (LPARAM) lParam      // = (LPARAM) () lParam; );
    So what I'm tryig to do is when I click a button it takes the text from hPopURL and puts it in hLink along with some extra prewritten text after it clears any text that may be in there... Can someone please explain to me how this peice of code works? Thanks alot... I'm just learning how to program in windows, please be patient with me...

  2. #2
    * Death to Visual Basic * Devil Panther's Avatar
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    first you should get msdn, and read about the function and the message it sends.

    you can find an on-line version of msdn here: http://msdn.microsoft.com
    An application sends a WM_SETTEXT message to set the text of a window.


    WM_SETTEXT
    wParam = 0; // not used; must be zero
    lParam = (LPARAM)(LPCTSTR)lpsz; // address of window-text string


    but anyway, you can simply use:

    Code:
    SetDlgItemText(hDlg, ID_EDITBOX_CONTROL, "hello");
    The SetDlgItemText writes the "hello" string to the editbox, named: ID_EDITBOX_CONTROL, which is part of the window/dialog box, and it's handle is: hDlg.
    Last edited by Devil Panther; 03-16-2004 at 12:52 PM.
    "I don't suffer from insanity but enjoy every minute of it" - Edgar Allen Poe

    http://www.Bloodware.net - Developing free software for the community.

  3. #3
    Registered User Codeplug's Avatar
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    >> I'm just learning how to program in windows...
    A big part of that will be learning to use available documentation: WM_SETTEXT.

    gg

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    thanks alot guys!

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    ok, so i need help...

    to add text from another text box also...

    UINT GetDlgItemText(

    HWND hDlg, // handle of dialog box
    int nIDDlgItem, // identifier of control
    LPTSTR lpString, // address of buffer for text
    int nMaxCount // maximum size of string
    );

  6. #6
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    so what am i doing wrong here?

    Code:
                   popUrl = GetDlgItemText(hwnd, IDE_MAIN_POPURL, 0, 0);
                    SetDlgItemText(hwnd, IDE_MAIN_LINK, "URL: " + popUrl);
    i r n00b

  7. #7
    Registered User Codeplug's Avatar
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    >> I'm just learning how to program in windows...

    Do you know how to program in C? If not, I would start there first....

    gg

  8. #8
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    yes, i've made some simple dos programs in C before.. and also have had experiance in other languages...


    I've got my problem just about figured out... but i need to know one thing... how can i convert a char to a string and then back again?

    Code:
                char popUrl[256];
                string finLink1;
                finLink1 = "<a href=";
                string finLink2;
                finLink2 = ">click me</a>";
    
                   GetDlgItemText(hwnd, IDE_MAIN_POPURL, popUrl, 256);
                   finLink1 += popUrl;
                   finLink1 += finLink2;
                   SetDlgItemText(hwnd, IDE_MAIN_LINK, finLink1);
    i r n00b

  9. #9
    * Death to Visual Basic * Devil Panther's Avatar
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    I think codeplug is right, you should... not wait, you must start from the basic C (ansi), before you can you start with windows programming.


    And about the GetDlgItemText()... it should be:

    Code:
    GetDlgItemText(hwnd, IDE_MAIN_POPURL, popUrl, BUFFER_SIZE);
                
    sprintf(total_string, "Url: %s", popUrl);
    SetDlgItemText(hwnd, IDE_MAIN_LINK, total_string);

    Forget what I said and go learn C.
    "I don't suffer from insanity but enjoy every minute of it" - Edgar Allen Poe

    http://www.Bloodware.net - Developing free software for the community.

  10. #10
    * Death to Visual Basic * Devil Panther's Avatar
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    dude you can't just add strings with a plus... either you write your own function to do that, or use ready ones from the given libs... strcat(), sprintf()... etc.

    you're mixing c with other languages.


    and what the hell is string finLink2; ?
    "I don't suffer from insanity but enjoy every minute of it" - Edgar Allen Poe

    http://www.Bloodware.net - Developing free software for the community.

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