FMX.DialogService.TDialogService.ShowMessage
Delphi
class procedure ShowMessage(const AMessage: string); overload;
class procedure ShowMessage(const AMessage: string; const ACloseDialogProc: TInputCloseDialogProc); overload;
class procedure ShowMessage(const AMessage: string; const ACloseDialogEvent: TInputCloseDialogEvent;
const AContext: TObject = nil); overload;
C++
__classmethod void __fastcall ShowMessage(const System::UnicodeString AMessage)/* overload */;
__classmethod void __fastcall ShowMessage(const System::UnicodeString AMessage, const Fmx::Dialogs::_di_TInputCloseDialogProc ACloseDialogProc)/* overload */;
__classmethod void __fastcall ShowMessage(const System::UnicodeString AMessage, const Fmx::Dialogs::TInputCloseDialogEvent ACloseDialogEvent, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
procedure function |
public | FMX.DialogService.pas FMX.DialogService.hpp |
FMX.DialogService | TDialogService |
Description
Shows a dialog box with the specified message and an OK button. .
ShowMessage can work synchronously or asynchronously depending on the preferred mode. ShowMessage internally calls ShowMessageAsync or ShowMessageSync.
When PreferredMode is set to Platform:
- On desktop platforms (Windows and OS X), ShowMessage behaves synchronously. The call finishes only when the user closes the dialog box.
- On mobile platforms (Android and iOS), ShowMessage behaves asynchronously. The call finishes instantaneously, it does not wait for the user to close the dialog box.
To force a specific behaviour for the different platforms, set PreferredMode to Sync or ASync (Not supported by Android).
ShowMessage receives the following parameters:
AMessageis the text message.ACloseDialogProcorACloseQueryEventis an optional anonymous method or event handler that is called after the user closes the dialog box.AContextis an optional object that you can provide as a context for the event handler assigned toACloseQueryEvent.