file open AsyncStorage File Access Mode read thenfunction

file. open. Async(Storage. File. Access. Mode. read). then(function (stream) { // ファイル ストリームから内容を読み取る });

if Get. Printer

auto ref new File. Open. Picker ". jpg" auto ref new Async. Operation. Completed. Handler Storage. File this IAsync. Operation<Storage. File if

var = new. . (); . . ( function ( var ) { =. } ); . . = new ()- ( ) ("Time. Label"); + "ms";

var = new . . . then(function ( . . (". jpg"); . (); () ) { (. then(function ( . . ) ) { ( . then(function (. . }); }); ) { )

var = new . . . then(function ( = new return. }). then(function ( return }). then(function (. … }); . . (". jpg"); . (); () ) { (); ( . . ); ) {. . ) { ( );

File. Open. Picker new File. Open. Picker ". jpg" Storage. File await IRandom. Access. Stream await Bitmap. Decoder . . .

var folder = Known. Folders. Documents. Library; foreach (var sub. Folder in await folder. Get. Folders. Async()) { var found. Files = from file in await sub. Folder. Get. Files. Async() where file. File. Type. Equals(requested. Type) select file; } results. Add. Range(found. Files);

File. Open. Picker p = new File. Open. Picker(); p. File. Type. Filter. Add(". jpg"); ry var operation = p. Pick. Single. File. Async(); operation. Completed = (IAsync. Operation<Storage. File> f) => { My. Button. Content = f. Get. Results(). File. Name; }; operation. Start();

try { File. Open. Picker p = new File. Open. Picker(); p. File. Type. Filter. Add(". jpg"); ry var operation = p. Pick. Single. File. Async(); operation. Completed = (IAsync. Operation<Storage. File> f) => { My. Button. Content = f. Get. Results(). File. Name; }; operation. Start(); catch(. . . ) {}

try { File. Open. Picker p = new File. Open. Picker(); p. File. Type. Filter. Add(". jpg"); My. Button. Content = (await p. Pick. Single. File. Async()). File. Name; } catch(Exception e) {}

picker. pick. Single. File. Async(). then(function (fi) { start = new Date(); return fi. open. Async(Storage. File. Access. Mode. read); } )

picker. pick. Single. File. Async(). then(function (fi) { start = new Date(); return fi. open. Async(Storage. File. Access. Mode. read); }). then(function (stream) { return Imaging. Bitmap. Decoder. create. Async(stream); }). then(function (decoder) { decoder. … }) then

auto operation = picker->Pick. Single. File. Async(); operation->Completed = ref new Async. Operation. Completed. Handler<Storage. File^>( [this] (IAsync. Operation<Storage. File^> ^ op) { My. Button->Is. Enabled = true; }); operation->Start(); My. Button->Is. Enabled = false;

http: //forums. dev. windows. com http: //bldw. in/Session. Feedback

virtual HRESULT STDMETHODCALLTYPE Open. Async( Windows: : Storage: : File. Access. Mode access. Mode, IAsync. Operation< Windows: : Storage: : Streams: : IRandom. Access. Stream* > **operation ) = 0;

template <class TResult> struct IAsync. Operation : . . . { virtual HRESULT STDMETHODCALLTYPE put_Completed( IAsync. Operation. Completed. Handler<TResult> *handler ) = 0; virtual HRESULT STDMETHODCALLTYPE get_Completed( IAsync. Operation. Completed. Handler<TResult> **handler ) = 0; virtual HRESULT STDMETHODCALLTYPE Get. Results( TResult *results ) = 0; };

var File. Access. Mode IAsync. Operation IRandom. Access. Stream //ファイル ストリームから内容を読み取る