CTaskDialog::AddCommandControl

發行項
06/10/2015

加入新的命令按鈕控制項加入至 CTaskDialog。

void AddCommandControl(
   int nCommandControlID,
   const CString& strCaption,
   BOOL bEnabled = TRUE,
   BOOL bRequiresElevation = FALSE
);

參數

[in] nCommandControlID
Command 控制項識別項。
[in] strCaption
CTaskDialog 向使用者顯示的字串。使用這個字串解譯命令的用途。
[in] bEnabled
布林值 (Boolean) 參數新增按鈕是否啟用或停用。
[in] bRequiresElevation
布林值 (Boolean) 參數順序是否需要提高權限。

備註

CTaskDialog 類別可以顯示不限數目的命令按鈕控制項。不過，如果 CTaskDialog ，顯示任何命令按鈕控制項，它可顯示最多六個按鈕。如果 CTaskDialog 沒有命令按鈕控制項，它可顯示不限數目的按鈕。

當使用者選取命令按鈕控制項時， CTaskDialog 關閉。您可以使用 CTaskDialog::DoModal，如果您的應用程式會顯示對話方塊中， DoModal 傳回所選取命令的按鈕控制項的 nCommandControlID 。

範例

// 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);