Tlistbox, How to get the text of Item 2?

This is a discussion on Tlistbox, How to get the text of Item 2? within the Windows Programming forums, part of the Platform Specific Boards category; Hi, Im using Borland C++ and having problems with tlistbox. I want to get the text of item 2 in ...

  1. #1
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    Tlistbox, How to get the text of Item 2?

    Hi, Im using Borland C++ and having problems with tlistbox.

    I want to get the text of item 2 in the listbox.. Anyone help?

  2. #2
    Registered User sean345's Avatar
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    Mar 2002
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    346
    From the Win32 API reference:
    An application sends an LB_GETTEXT message to retrieve a string from a list box.

    LB_GETTEXT
    wParam = (WPARAM) index; // item index
    lParam = (LPARAM) (LPCTSTR) lpszBuffer; // address of buffer


    Parameters

    index

    Value of wParam. Specifies the zero-based index of the string to retrieve.
    Windows 95: The wParam parameter is limited to 16-bit values. This means list boxes cannot contain more than 32,767 items. Although the number of items is restricted, the total size in bytes of the items in a listbox is limited only by available memory.

    lpszBuffer

    Value of lParam. Points to the buffer that will receive the string. The buffer must have sufficient space for the string and a terminating null character. An LB_GETTEXTLEN message can be sent before the LB_GETTEXT message to retrieve the length, in characters, of the string.

    Return Values

    The return value is the length of the string, in characters, excluding the terminating null character. If index does not specify a valid index, the return value is LB_ERR.

    Remarks

    If you create the list box with an owner-drawn style but without the LBS_HASSTRINGS style, the buffer pointed to by the lpszBuffer parameter will receive the 32-bit value associated with the item (the item data).
    You can send this message with the SendMessage Command.

    - Sean
    If cities were built like software is built, the first woodpecker to come along would level civilization.
    Black Frog Studios

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