System.Classes.TComponent.BeginInvoke
Delphi
function BeginInvoke(const AProc: TProc; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke(const AProc: TASyncProcedureEvent; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke<TResult>(const AFunc: TFunc<TResult>; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke(const AProc: TAsyncConstArrayProc; const Params: array of const; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke<TResult>(const AFunc: TAsyncConstArrayFunc<TResult>; const Params: array of const; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke(const AProc: TAsyncConstArrayProcedureEvent; const Params: array of const; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke(const AFunc: TAsyncConstArrayFunctionEvent; const Params: array of const; const AContext: TObject = nil): IAsyncResult; overload;
function BeginInvoke(const AFunc: TAsyncFunctionEvent; const AContext: TObject = nil): IAsyncResult; overload;
C++
System::Types::_di_IAsyncResult __fastcall BeginInvoke(const System::Sysutils::_di_TProc AProc, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
System::Types::_di_IAsyncResult __fastcall BeginInvoke(const TAsyncProcedureEvent AProc, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
template<typename TResult> System::Types::_di_IAsyncResult __fastcall BeginInvoke(const System::DelphiInterface<System::Sysutils::TFunc__1<TResult> > AFunc, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
System::Types::_di_IAsyncResult __fastcall BeginInvoke(const _di_TAsyncConstArrayProc AProc, const System::TVarRec *Params, const System::NativeInt Params_High, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
template<typename TResult> System::Types::_di_IAsyncResult __fastcall BeginInvoke(const System::DelphiInterface<TAsyncConstArrayFunc__1<TResult> > AFunc, const System::TVarRec *Params, const System::NativeInt Params_High, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
System::Types::_di_IAsyncResult __fastcall BeginInvoke(const TAsyncConstArrayProcedureEvent AProc, const System::TVarRec *Params, const System::NativeInt Params_High, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
System::Types::_di_IAsyncResult __fastcall BeginInvoke(const TAsyncConstArrayFunctionEvent AFunc, const System::TVarRec *Params, const System::NativeInt Params_High, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
System::Types::_di_IAsyncResult __fastcall BeginInvoke(const TAsyncFunctionEvent AFunc, System::TObject* const AContext = (System::TObject*)(0x0))/* overload */;
プロパティ
| 種類 | 可視性 | ソース | ユニット | 親 |
|---|---|---|---|---|
| function | public | System.Classes.pas System.Classes.hpp |
System.Classes | TComponent |
説明
AProc パラメータか AFunc パラメータのどちらかで指定されたメソッドの非同期呼び出しを実行します。
AContext パラメータでは、メソッドが実行されるコンテキストを指定します。このコンテキストはメイン スレッドに対応します。TControl の下位クラスの場合は、最も近いウィンドウのハンドルが作成されたスレッドのコンテキストで実行されます。
BeginInvoke では、戻り値型として使用されるインターフェイス IAsyncResult で非同期実行の結果を返します。