Radio Buttons

[nbgoku]

ok with check buttons, i understand how to create bool variables to contain the values as to whether or not the check buttons have been cheched or not, but with radio buttons, do i also define bool variables containing 1 or 0, how does it work with radio buttons

 

[shetlandbob]

you can attach a single variable to your group of radio buttons. e.g.

int option;

This will result in option = 0 for the first check box in your radio control, 1 in second etc.......

 

[Cagliostro]

not required. You may handle OnCommand or WM_COMMAND when some of box is set.

Ion Filipski

 

[nbgoku]

shetlandbob i tryed what u said, but it doesnt seem to work for me, would u have an example i could follow by?

 

[nbgoku]

what i did was select 2 of the radio buttons, and then add a int variable from the Add Variable option, then i went into my program and tryed to fool around with the int variable, given it values 0 or 1, and doing UpdateData(0); b/c i want 1 of them to be preselected when the program starts (sort of like a default selection), but it didnt work

 

[shetlandbob]

Did you set one of the radio button group variables to true? ( the first one in the tab order, thus all others in your tab order will be in that group of radio buttons until it finds another that has group set to TRUE)

Then when you add a variable you should get

void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
  CDialog::DoDataExchange(pDX);
  [b]DDX_Radio(pDX, IDC_RADIO1, radio);[/b]
}

then in your OnInit

BOOL CMyDlg::OnInitDialog()
{
    CDialog::OnInitDialog();
    
    SetIcon(m_hIcon, TRUE);     // Set big icon
    SetIcon(m_hIcon, FALSE);    // Set small icon

    [b]radio = 0;
    UpdateData ( false );[/b]
    return TRUE;
}

Thus when you load up your dialog you will have the first one set to default (Set = 1 to get your second etc....)

 

[nbgoku]

how did u define radio, b/c when i run my program i get radio as an undeclared identifier, i think i missed a step or 2 in the beginning when declaring radio but dunno which steps

 

[shetlandbob]

radio is the variable you attach to the radioButton, it is an integer.

 

[Cagliostro]

you can do handle each pressing of RadioButton. It sends to window a WM_COMMAND. You will handle

..... OnCommand(WPARAM wParam)
{
somevalue = wParam... this is the just choosen option
}
or
.....OnRadioButtonXXXX....()
{
somevalue = xxxx...
}

...... OnRadioButtonYYYY....()
{
somevalue = yyyy...
}

Ion Filipski

 

[nbgoku]

woot woot, it works now

thanks yall!