CTaskDialog::IsCommandControlEnabled

Détermine si un contrôle ou un clic de bouton de commande est activé.

BOOL IsCommandControlEnabled(
   int nCommandControlID
) const;

Paramètres

[in] nCommandControlID
L'ID du contrôle ou du bouton de bouton de commande à tester.

Valeur de retour

TRUE si le contrôle est activé, FALSE s'il n'est pas.

Notes

Vous pouvez utiliser cette méthode pour déterminer la disponibilité des contrôles de bouton de commande et des boutons courants de De classe CTaskDialog.

Si nCommandControlID n'est pas un identificateur valide pour un bouton d' CTaskDialog commun ou un contrôle bouton de commande, les lève une exception.

Exemple

// TODO: Replace the strings below with the appropriate message, 
// main instruction, and dialog title.
CString message("This is an important message to the user.");
CString mainInstruction("Important!\nPlease read!");
CString title("Alert Dialog");

CTaskDialog taskDialog(message, mainInstruction, title, 
    TDCBF_YES_BUTTON | TDCBF_NO_BUTTON | TDCBF_CANCEL_BUTTON );

taskDialog.AddCommandControl(201, L"First command button control");
taskDialog.AddCommandControl(202, L"Second command button control");
taskDialog.AddCommandControl(203, L"Third command button control");

// Show the CTaskDialog and remember how the user closed it.
int selection = taskDialog.DoModal();

switch(selection)
{
case 201:
    // TODO: Place processing here for the first 
    // command button control.
    break;

case 202:
    // TODO: Place processing here for the second 
    // command button control.
    break;

case 203:
    // TODO: Place processing here for the third 
    // command button control.
    break;

default:
    break;
}

// Remove all the command controls so that we can use the same task
// dialog with new command button controls.
taskDialog.RemoveAllCommandControls();

taskDialog.AddCommandControl(301, 
    L"New first command button control");
taskDialog.AddCommandControl(302, 
    L"New second command button control should require elevation",
    TRUE, TRUE);
taskDialog.AddCommandControl(303, 
    L"New third command button control should be disabled");

// Change the default command button control
taskDialog.SetDefaultCommandControl(302);

// Make sure the third option is disabled.
if (taskDialog.IsCommandControlEnabled(303))
{
    taskDialog.SetCommandControlOptions(303, FALSE);
}

taskDialog.DoModal();

switch(taskDialog.GetSelectedCommandControlID())
{
case 301:
    // TODO: Place processing here for new first 
    // command button control.
    break;

case 302:
    // TODO: Place processing here for new second 
    // command button control.
    break;

case 303:
    // TODO: Place processing here for the new third 
    // command button control.
    break;

default:
    break;
}

// Remove all the command button controls and add new ones from
// the string table resource.
taskDialog.RemoveAllCommandControls();
taskDialog.LoadCommandControls(1001, 1005);