訊息視窗也是最入門要學的技巧,看了一個網站提供了MessageDlgs Example,頓時了解FireMonkey 的訊息視窗用法不變,但參數用法有點不一樣? 做個心得記錄

來源網站:http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=2097&lngWId=7 (內有範例)

//原本使用的方法

if MessageDlg('hello world', mtConfirmation, [mbYes, mbNo], 0) = mrYes) then ….

//Firemonkey寫法

if MessageDlg('hello world', TMsgDlgType.mtConfirmation, mbYesNo, 0) = IDYES then ….

//不只yes no 還有ok cancel Abort Ignore


原本的[mbYes, mbNo],改為 mbYesNo,到底有哪幾種呢?

FMX.Dialogs.pas內有定義擷取如下

const
  mbYesNo = [TMsgDlgBtn.mbYes, TMsgDlgBtn.mbNo];
  mbYesNoCancel = [TMsgDlgBtn.mbYes, TMsgDlgBtn.mbNo, TMsgDlgBtn.mbCancel];
  mbYesAllNoAllCancel = [TMsgDlgBtn.mbYes, TMsgDlgBtn.mbYesToAll, TMsgDlgBtn.mbNo,
    TMsgDlgBtn.mbNoToAll, TMsgDlgBtn.mbCancel];
  mbOKCancel = [TMsgDlgBtn.mbOK, TMsgDlgBtn.mbCancel];
  mbAbortRetryIgnore = [TMsgDlgBtn.mbAbort, TMsgDlgBtn.mbRetry, TMsgDlgBtn.mbIgnore];
  mbAbortIgnore = [TMsgDlgBtn.mbAbort, TMsgDlgBtn.mbIgnore];

 

原本使用mtConfirmation,卻不能用,要改為TMsgDlgType.mtConfirmation

System.UITypes.pas內有定義擷取如下

 
{ Message dialog }
  TMsgDlgType = (mtWarning, mtError, mtInformation, mtConfirmation, mtCustom);
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