FMX.Platform.IFMXDialogServiceAsync.MessageDialogAsync

• Up to Parent: IFMXDialogServiceAsync

Delphi

procedure MessageDialogAsync(const AMessage: string; const ADialogType: TMsgDlgType; const AButtons: TMsgDlgButtons;
const ADefaultButton: TMsgDlgBtn; const AHelpCtx: THelpContext; const ACloseDialogProc: TInputCloseDialogProc); overload;
procedure MessageDialogAsync(const AMessage: string; const ADialogType: TMsgDlgType; const AButtons: TMsgDlgButtons;
const ADefaultButton: TMsgDlgBtn; const AHelpCtx: THelpContext; const ACloseDialogEvent: TInputCloseDialogEvent;
const AContext: TObject = nil); overload;

C++

virtual void __fastcall MessageDialogAsync(const System::UnicodeString AMessage, const System::Uitypes::TMsgDlgType ADialogType, const System::Uitypes::TMsgDlgButtons AButtons, const System::Uitypes::TMsgDlgBtn ADefaultButton, const System::Classes::THelpContext AHelpCtx, const Fmx::Dialogs::_di_TInputCloseDialogProc ACloseDialogProc) = 0 /* overload */;
virtual void __fastcall MessageDialogAsync(const System::UnicodeString AMessage, const System::Uitypes::TMsgDlgType ADialogType, const System::Uitypes::TMsgDlgButtons AButtons, const System::Uitypes::TMsgDlgBtn ADefaultButton, const System::Classes::THelpContext AHelpCtx, const Fmx::Dialogs::TInputCloseDialogEvent ACloseDialogEvent, System::TObject* const AContext = (System::TObject*)(0x0)) = 0 /* overload */;

Properties

Type	Visibility	Source	Unit	Parent
procedure function	public	FMX.Platform.pas FMX.Platform.hpp	FMX.Platform	IFMXDialogServiceAsync

Description

Displays a dialog box with a custom message, dialog type, set of buttons and help context ID.

MessageDialogAsync works asynchronously. Calls to MessageDialogAsync finish instantaneously, they do not wait for the user to close the dialog box. To work synchronously, use IFMXDialogServiceSync.MessageDialogSync.

MessageDialogAsync receives the following parameters:

• AMessage is the text message.
• ADialogType is the dialog type.
• AButtons is the set of buttons.
• ADefaultButton is the button that has the focus by default.
• AHelpCtx is the help context ID.
• ACloseDialogProc or ACloseDialogEvent is an anonymous method or event handler that is called after the user closes the dialog box.

Note: The Help button does not trigger a call because it does not close the dialog box.

• AContext is an optional object that you can provide as a context for the event handler assigned to ACloseQueryEvent.

When the user closes the dialog box, MessageDialogAsync calls the specified anonymous method or event handler with the following arguments:

• Sender (ACloseDialogEvent only) contains the specified AContext.
• AResult is the modal result value of the button used to close the dialog box.

To call MessageDialogAsync without the need of an instance of IFMXDialogServiceAsync, use TDialogServiceAsync.MessageDialog instead.

Platform Support

Platform	Support
Windows
macOS
iOS
Android

See Also

• FMX.Platform.IFMXDialogServiceAsync.InputQueryAsync
• FMX.Platform.IFMXDialogServiceAsync.ShowMessageAsync

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