Thread: CListCtrl and Arbitrary Data :: MFC

  1. 01-24-2003 #1
    kuphryn
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    CListCtrl and Arbitrary Data :: MFC

    Hi.

    Is there an object that is part of each item (row) in a CListCtrl that can be used to store arbitrary data or a pointer to them? For example, give there a CListCtrl with two columns. Both columns contain texts; however, I want to store data or pointer to data that correspond to the items in CListCtrl.

    I have considered other solutions include an independent STL contains such as a vector that will update as the user makes changes to the CListCtrl. There is a performance reduction for removal. Thus, I that is the last resort.

    Thanks,
    Kuphryn
  2. 01-25-2003 #2
    Sebastiani
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    Sure you can.

    int result = SendMessage(list, LB_SETITEMDATA, (WPARAM)index, (LPARAM)data);

    if(result == LB_ERR)
    ///....failed

    ...and...

    void * data = 0;

    int result = SendMessage(list, LB_GETITEMDATA, (WPARAM)index, 0);

    if(success == LB_ERR)
    ///....failed
    else
    data = (void*)result;
    Code:
    #include <cmath>
#include <complex>
bool euler_flip(bool value)
{
    return std::pow
    (
        std::complex<float>(std::exp(1.0)), 
        std::complex<float>(0, 1) 
        * std::complex<float>(std::atan(1.0)
        *(1 << (value + 2)))
    ).real() < 0;
}
  3. 01-25-2003 #3
    kuphryn
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    Okay. Thanks.

    SetItemData()
    GetItemData()

    Kuphryn
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