Yaron

@Dave Nottage Yes, I am working with the same "SEND" action. I read the article you linked to, but didn't see any mention regarding the same action used more than once. I did get an answer on stackoverflow that I should use an Activity Alias, but haven't had time to test it yet and I haven't figured out yet (mainly due to lack of time) how to do this in delphi : if (intent.component.className.endsWith(".Queue"){ // putting data in the queue... } else { // playing requested data... }

I tried modifying the manifest file to include two entries with different labels: <intent-filter android:label="Play in XX"> <action android:name="android.intent.action.SEND" /> <category android:name="android.intent.category.DEFAULT" /> <data android:mimeType="text/plain" /> </intent-filter> <intent-filter android:label="Queue in XX"> <action android:name="android.intent.action.SEND" /> <category android:name="android.intent.category.DEFAULT" /> <data android:mimeType="text/plain" /> </intent-filter> However, only the first entry shows up in YouTube and on top of that I'm not even sure how to read the label value from my Delphi code so I can distinguish between the two call even if YouTube did list them.

I don't see the mechanism that would allow me to distinguish between multiple intents. I don't understand how calling "MainActivity.registerIntentAction(TJIntent.JavaClass.ACTION_SEND);" again would help.

You are not very clear, I believe mars translates everything to unicode, I have no issues with UTF8 encoded content.

Any reason you're looking to pass this information in the path instead of perhaps using a form POST that contains the relevant information?

Is it possible to make a sort of "catch all" for all "GET/POST" commands that use a path not specified through mars? For example, I have mars specified to return a page using "http://website.com/rest/info" However, If the client opens the unspecified "http://website.com/rest/none" path, MARS throws an exception. Instead of the exception, I want to catch all unspecified paths and return an HTML result (and keep a record of the unspecified path in my debug logs). Is this possible?

I'm using AJAX forms with javascript's "history.pushState" to preserve the browser's "back" button functionality. So if my entry point is "https://myserver.com/v/site/", clicking on a link would look like "https://myserver.com/v/site/page1/" without any actual page being loaded (only part of the page). My problem is that when the user tries to refresh the page, MARS won't recognize the "https://myserver.com/v/site/page1/" path. In reality, I would like to redirect such URLs back to "https://myserver.com/v/site/". I tried registering the InvokeError procedure like this: TMARSActivation.RegisterInvokeError( procedure (const AActivation: IMARSActivation; const AException: Exception; var AHandled: Boolean) begin ShowMessage(AActivation.Request.URL); AHandled := True; end ); Which is triggered, but "AActivation.Request.URL" returns an empty string and I'm not sure how to perform the redirect... can you help?

It seems that Delphi 10.3 generated APKs are not compatible with the NOX emulator running Android 7. The moment I try running the APK, I get a message that the application closed. This happens with every APK I generate (e.g. https://github.com/bLightZP/ElegantCalculator). Trying to debug the issue, it seems that my first line of code is not even executed before the app closes. Any ideas?

I'm the author of Zoom Player a Windows media player/home theater application. One of Zoom Player's features is that it scrapes information on the video file using multiple mechanism. Two of these mechanisms are somehow severely lagging my user interface even though I'm running the code in separate threads with Idle priority: 1. Running MediaInfo.dll on the media file. 2. Using a non-visual background directshow graph using LAV Filters (directshow filters) to extract a video frame from the video. Other than moving this functionality to completely separate processes, is there a method to ensure my UI (running in the main thread) remains responsive?

After previously uploading a Delphi 10.2.3 to the google play store, I uploaded an APK compiled in Delphi 10.3. This triggered a warning message by the play store that some devices will no longer be supported by this build. My code hasn't changed... Does anyone know if this can be worked around so I can keep supporting these older devices?

I need to temporarily disable HDR to display a menu system when an HDR video is playing. It's been a bit of a chase finding out this is done, so I thought I'll share. There's documentation of how to do it with C++ here: https://stackoverflow.com/questions/53517128/query-if-hdr-is-active-on-windows But even Delphi 10.3.3 is missing "Winapi.DXGI1_6.pas". However, Searching for this file led me to MfPack (https://sourceforge.net/projects/mfpack/), which does carry up to date header conversions.

@eivindbakkestuen: I have a 4 Core/8 Thread GPU and the CPU is not really tasked, I believe it's mostly disk I/O. @Fr0sT.Brutal: You missed the bit where I wrote that the mediainfo data is synched with a central scrape-coordination thread, so the main UI is only disturbed when all the data has been scraped. And yes, it can be analyzing 100's (even 1000's) of files, trying to do so for about 4 concurrently.

@Remy Lebeau Debugging multiple threads is very difficult (at least in D7) as the run-point seems to jump between the threads each time you advance one line (unless there's something I'm missing?) This is why I use a lot of debug log entries. I believe the code I pasted above doesn't synchronize anything with the main thread, it's passing data to another (scraping) thread which works (synchronizes) just fine when doing other heavy work unrelated to mediainfo.

Here are more details (it's somewhat big, but may help others in the future): 1. I have an Idle priority information-scraping thread so the UI won't be affected by the scraping process. 2. The scraping thread pre-creates & uses an idle priority TMediaInfoThread thread (see below). 3. The scraping activates the mediainfo thread. 4. This is the mediainfo's DLL pascal header file : https://github.com/MediaArea/MediaInfoLib/blob/master/Source/MediaInfoDLL/MediaInfoDLL.pas 5. And you can download the DLL here https://mediaarea.net/en/MediaInfo/Download/Windows Code used to activate MediaInfo data gathering thread: MediaInfoThread.MediaName := MediaName; MediaInfoThread.ScrapeType := niVideo; MediaInfoThread.ResumeThread; // do other scraping related meta-data gathering (e.g. online DB lookup) while mediainfo is processing to maximize concurrently/performance. While MediaInfoThread.IsSuspended = False do Sleep(1); If MediaInfoThread.miResult = True then The MediaInfo thread code: Type TMediaInfoThread = Class(TThread) procedure execute; override; private FEvent : THandle; public ScraperThreadIndex : Integer; IsSuspended : Boolean; ScrapeType : Integer; MediaName : WideString; miResult : Boolean; miWidth : Integer; miHeight : Integer; miDuration : Double; miIcons : WideString; miMediaTAGs : TZPTAGRec; Closed : PBoolean; procedure ResumeThread; end; procedure TMediaInfoThread.Execute; begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','Thread Created, ID #'+IntToStr(ThreadID));{$ENDIF} FEvent := CreateEvent(nil, False, // auto reset False, // initial state = not signaled nil); ResetTagData(miMediaTAGs); ScrapeType := niVideo; IsSuspended := True; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','Thread Initially Suspended');{$ENDIF} WaitForSingleObject(FEvent, INFINITE); // Wait to start processing {$IFDEF LOC1ALTRACE} DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','Thread Initially Resumed'+CRLF); {$ENDIF} While (Terminated = False) do Begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','MediaInfo on "'+MediaName+'" (before)');{$ENDIF} miResult := MediaInfo_GetMediaInfoCache(MediaName,ScrapeType,miIcons,miWidth,miHeight,miDuration,@miMediaTAGs,ScraperThreadIndex); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','MediaInfo on "'+MediaName+'" (after)');{$ENDIF} If Terminated = False then Begin IsSuspended := True; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','MediaInfo complete, Thread Suspended'+CRLF);{$ENDIF} WaitForSingleObject(FEvent, INFINITE); // No more Work {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','Thread Resumed');{$ENDIF} If Terminated = False then ResetTagData(miMediaTAGs); End; End; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','Close event handle');{$ENDIF} CloseHandle(fEvent); If @Closed <> nil then Closed^ := True; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(ScraperThreadIndex)+'.txt','Thread Terminated');{$ENDIF} end; procedure TMediaInfoThread.ResumeThread; begin SetEvent(FEvent); IsSuspended := False; end; function MediaInfo_GetMediaInfo(FileName : WideString; ScrapeType : Integer; miData : PMediaInfoDataRecord; grabThreadID : Integer) : Boolean; var miHandle : Cardinal; sFormat : WideString; sFormatVersion : WideString; sFormatString : WideString; sProfile : WideString; sCodecID : WideString; sScanType : WideString; sDuration : WideString; aCount : Integer; vCount : Integer; I : Integer; mWidth : Integer; mHeight : Integer; mChannels : Integer; iWidth : Integer; iHeight : Integer; iChannels : Integer; iCodec : Integer; S : String; begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','MediaInfo_GetMediaInfo (before)');{$ENDIF} Result := False; With miData^ do Begin iconFormat := niNone; iconResolution := niNone; iconVideo := niNone; iconAudio := niNone; iconChannels := niNone; ResetTagData(TAGs); If MediaInfoLoaded = True then Begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','MediaInfoLoaded = True');{$ENDIF} miHandle := MediaInfo_New; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','MediaInfo Handle : '+IntToHex(miHandle,8));{$ENDIF} If MediaInfo_Open(miHandle, PWideChar(FileName)) = 1 then Begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Open successful');{$ENDIF} Result := True; // Duration sDuration := MediaInfo_Get(miHandle, Stream_General, 0, 'Duration' , Info_Text, Info_Name); mediaDuration := StrToFloatDef(sDuration,0) / 1000; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Duration : '+sDuration);{$ENDIF} // File format {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','*** File Format ');{$ENDIF} sFormat := MediaInfo_Get(miHandle, Stream_General, 0, 'Format' , Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Format : '+sFormat);{$ENDIF} sFormatVersion := MediaInfo_Get(miHandle, Stream_General, 0, 'Format_Version', Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','FormatVersion : '+sFormatVersion);{$ENDIF} sProfile := MediaInfo_Get(miHandle, Stream_General, 0, 'Format_Profile', Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Profile : '+sProfile);{$ENDIF} iconFormat := MediaInfo_FormatToNavIcon(sFormat,sFormatVersion,sProfile); If ScrapeType = niVideo then Begin // Video Codec & Resolution {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','*** Video Codec & Resolution');{$ENDIF} mWidth := -1; mHeight := -1; vCount := MediaInfo_Count_Get(miHandle, Stream_Video, -1); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Video Streams : '+IntToStr(vCount));{$ENDIF} For I := 0 to vCount-1 do Begin iWidth := StrToIntDef(MediaInfo_Get(miHandle, Stream_Video, I, 'Width' , Info_Text, Info_Name),-1); iHeight := StrToIntDef(MediaInfo_Get(miHandle, Stream_Video, I, 'Height', Info_Text, Info_Name),-1); If (iWidth > mWidth) or (iHeight > mHeight) then Begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Video Resolution : '+IntToStr(iWidth)+'x'+IntToStr(iHeight));{$ENDIF} mWidth := iWidth; mHeight := iHeight; sFormat := MediaInfo_Get(miHandle, Stream_Video, I, 'Format' , Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Format : '+sFormat);{$ENDIF} sFormatVersion := MediaInfo_Get(miHandle, Stream_Video, I, 'Format_Version', Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. FormatVersion : '+sFormatVersion);{$ENDIF} sProfile := MediaInfo_Get(miHandle, Stream_Video, I, 'Format_Profile', Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Profile : '+sProfile);{$ENDIF} sScanType := TNT_WideLowercase(MediaInfo_Get(miHandle, Stream_Video, I, 'ScanType', Info_Text, Info_Name)); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. ScanType : '+sScanType);{$ENDIF} sCodecID := MediaInfo_Get(miHandle, Stream_Video, I, 'CodecID' , Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. CodecID : '+sCodecID);{$ENDIF} iconResolution := MediaInfo_ResolutionToNavIcon(mWidth,mHeight,sScanType); iconVideo := MediaInfo_VideoCodecToNavIcon(sFormat,sFormatVersion,sCodecID,sProfile); mediaWidth := mWidth; mediaHeight := mHeight; End; End; End else Begin // Audio TAGs TAGs.tgTitle := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Track' , Info_Text, Info_Name)); TAGs.tgGenre := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Genre' , Info_Text, Info_Name)); TAGs.tgTrack := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Track/Position' , Info_Text, Info_Name)); TAGs.tgArtist := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Performer' , Info_Text, Info_Name)); TAGs.tgAlbum := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Album' , Info_Text, Info_Name)); TAGs.tgYear := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Recorded_Date' , Info_Text, Info_Name)); TAGs.tgAuthor := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'WrittenBy' , Info_Text, Info_Name)); TAGs.tgComment := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Comment' , Info_Text, Info_Name)); TAGs.tgURL := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Track/Url' , Info_Text, Info_Name)); TAGs.tgCopyright := UTF8Decode(MediaInfo_Get(miHandle, Stream_General, 0, 'Copyright' , Info_Text, Info_Name)); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Encoded_Application', Info_Text, Info_Name); If S = '' then S := MediaInfo_Get(miHandle, Stream_General, 0, 'Encoded_Library' , Info_Text, Info_Name); TAGs.tgAuthor := UTF8Decode(S); End; // Audio Codec & Channels {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','*** Audio Codec & Channels');{$ENDIF} mChannels := -1; aCount := MediaInfo_Count_Get(miHandle, Stream_Audio, -1); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Audio Streams : '+IntToStr(aCount));{$ENDIF} For I := 0 to aCount-1 do Begin {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Audio Stream');{$ENDIF} iCodec := -1; //sCommercialName := MediaInfo_Get(miHandle, Stream_Audio, I, 'Format_Commercial_IfAny', Info_Text, Info_Name); sFormatString := MediaInfo_Get(miHandle, Stream_Audio, I, 'Format/String' , Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Format String : '+sFormatString);{$ENDIF} sFormat := MediaInfo_Get(miHandle, Stream_Audio, I, 'Format' , Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Format : '+sFormat);{$ENDIF} sProfile := MediaInfo_Get(miHandle, Stream_Audio, I, 'Format_Profile', Info_Text, Info_Name); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Profile : '+sProfile);{$ENDIF} iChannels := MediaInfo_AudioChannelCount(MediaInfo_Get(miHandle, Stream_Audio, I, 'Channel(s)', Info_Text, Info_Name)); {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt',IntToStr(I)+'. Channels : '+IntToStr(iChannels));{$ENDIF} iCodec := MediaInfo_AudioCodecToNavIcon(sFormat,sProfile,sFormatString); If (iChannels > mChannels) or ((iconAudio = ni_codecDD ) and (iCodec in [ni_codecDTS,ni_codecDTS_ES,ni_codecDTS_HD_MA,ni_codecDD_TrueHD] = True)) or ((iconAudio = ni_codecDTS ) and (iCodec in [ni_codecDTS_ES,ni_codecDTS_HD_MA,ni_codecDD_TrueHD] = True)) or ((iconAudio = ni_codecDTS_ES ) and (iCodec in [ni_codecDTS_HD_MA,ni_codecDD_TrueHD] = True)) or ((iconAudio = ni_codecDD_TrueHD) and (iCodec in [ni_codecDTS_HD_MA] = True)) then Begin mChannels := iChannels; iconChannels := MediaInfo_AudioChannelsToNavIcon(mChannels); iconAudio := MediaInfo_AudioCodecToNavIcon(sFormat,sProfile,sFormatString); End; End; End; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','Close Handle');{$ENDIF} MediaInfo_Close(miHandle); End; End; {$IFDEF LOCALTRACE}DebugMsgFT('c:\log\MediaInfoThread_'+IntToStr(grabThreadID)+'.txt','MediaInfo_GetMediaInfo (after)'+CRLF);{$ENDIF} end; function MediaInfo_ProccessTAGdata(FileName : WideString; mRec : TZPFileClass; var albumArt : TBitmap) : Boolean; var miHandle : Cardinal; sImage : String; sDecoded : String; fStream : TMemoryStream; S : String; begin Result := False; If MediaInfoLoaded = True then Begin miHandle := MediaInfo_New; If MediaInfo_Open(miHandle, PWideChar(FileName)) = 1 then Begin sImage := MediaInfo_Get(miHandle, Stream_General, 0, 'Cover_Data' , Info_Text, Info_Name); If sImage <> '' then Begin sDecoded := Base64DecodeString(sImage); Result := True; fStream := TMemoryStream.Create; fStream.Write(sDecoded[1],Length(sDecoded)); fStream.Position := 0; LoadDetectedImage(fStream,albumArt); fStream.Free; End; S := MediaInfo_Get(miHandle, Stream_General, 0, 'Track' , Info_Text, Info_Name); If S = '' then S := MediaInfo_Get(miHandle, Stream_General, 0, 'Movie' , Info_Text, Info_Name); If mRec.zplTAG.tgTitle = '' then Begin If S = '' then mRec.zplTAG.tgTitle := mRec.zplName else mRec.zplTAG.tgTitle := UTF8Decode(S); End; S := MediaInfo_Get(miHandle, Stream_General, 0, 'Genre' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgGenre = '') then mRec.zplTAG.tgGenre := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Track/Position' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgTrack = '') then mRec.zplTAG.tgTrack := FillZero(S,2); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Performer' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgArtist = '') then mRec.zplTAG.tgArtist := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Album' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgAlbum = '') then mRec.zplTAG.tgAlbum := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Recorded_Date' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgYear = '') then mRec.zplTAG.tgYear := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'WrittenBy' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgAuthor = '') then mRec.zplTAG.tgAuthor := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Encoded_Application', Info_Text, Info_Name); If S = '' then S := MediaInfo_Get(miHandle, Stream_General, 0, 'Encoded_Library' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgEncoder = '') then mRec.zplTAG.tgEncoder := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Comment' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgComment = '') then mRec.zplTAG.tgComment := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Track/Url' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgURL = '') then mRec.zplTAG.tgURL := UTF8Decode(S); S := MediaInfo_Get(miHandle, Stream_General, 0, 'Copyright' , Info_Text, Info_Name); If (S <> '') and (mRec.zplTAG.tgCopyright = '') then mRec.zplTAG.tgCopyright := UTF8Decode(S); SendLCDs(2400,strNoMoreData); End; MediaInfo_Close(miHandle); End; end;

I placed another copy of the DLLs under "Windows/SysWow64" and now it seems to find the DLLs. It would help debugging if calling "WhichFailedToLoad" or possibly the InnerException would return the GetLastError value from the LoadLibrary function.

Running the same code on the server, GetLastError returns #126 "ERROR_MOD_NOT_FOUND", however the OpenSSL DLLs are both in the same path as the running DLL and in the Windows/System32 folder.

I managed to debug the SSL DLL's LoadLibrary's GetLastError value and it's #193, which according to microsoft is "ERROR_BAD_EXE_FORMAT". I don't belive the DLLs were corrupted, but just in case I downloaded the latest versions of the DLLs (v1.0.2.21) and no more errors on my local Win10 machine, but the Win2019 server is still triggering the same exceptions.

I did further testing and it's also failing outside of IIS, when running as a normal process on my local Windows 10 machine (which I also recently upgraded from Windows 7 where the code worked fine). So is this issue possibly specific to Windows 10/2019?

@Remy Lebeau I upgraded to a new server (Win2008 to Win2019) and now I'm getting the same issue (trying to send eMail via Amazon SES). This is inside an ISAPI 32bit dll that worked just fine when running under Windows 2008, but fails to send email when running under Windows 2019. I literally use the same code, same DLLs as the Win2008 machine, all DLLs (my DLL & SSL) are 32bit, everything else in the code works fine except for sending eMail using TLS (SSL). Inside IIS's application pool, the DLL is defined as 32bit, classic and "no managed code". When calling "smtp.send" (TIdSMTP), I get the following exception and additional info: 3/22/2020 10:00:49 AM [ 11854 ms] : SMTP Send Exception : SSL negotiation failed. 3/22/2020 10:00:49 AM [ 11854 ms] : Inner Exception : Could not load SSL library. 3/22/2020 10:00:49 AM [ 11855 ms] : WhichFailedToLoad : "Failed to load libeay32.dll." The DLLs are in the same folder as the ISAPI DLL, I also tried placing them in the Windows/System32 folder but it made no difference. Both "libeay32.dll" and "ssleay32.dll" are v1.0.2.19 and I'm using Delphi 10.3.3.

Using Delphi 10.3.3: My goal is to have a stable client/server remote control over TCP/IP that can automatically recover in cases where the network disconnects occasionally. I use a structure Remi suggested of creating a reading thread that tries to readln with a 1sec time out: FClient.OnDisconnected := OnDisconnect; FClient.IOHandler.ReadTimeout := 1000; // lets us exit the read operation after 1sec of inactivity While Terminated = False do Begin If FClient.Connected = True then Try FData := FClient.IOHandler.ReadLn(IndyTextEncoding_UTF8); Except // catch exception & update UI Try If FClient.Connected = True then FClient.Disconnect; except on E: Exception do Begin // Catch disconnect exception End; end; End; End; I have a client PC connected to a router via cable and the server PC connected to the same router via WiFi. After connecting the client to the server, I disconnect the server's wifi access and absolutely nothing happens (I waited over a minute). The OnDisconnected event isn't triggered, calling FClient.IOHandler.ReadLn doesn't return any exception and FClient.Connected remains True. If I then try to call FClient.IOHandler.WriteLn, within about 10 seconds a "Socket Error # 10054 - Connection reset by peer" exception is raised on the ReadLn code about (not on the WriteLn function). In that exception, I call "If FClient.Connected = True then FClient.Disconnect" which raises another "Socket Error # 10054 - Connection reset by peer" exception. Finally, my code loops to the beginning and then the same exception is triggered on the initial "If FClient.Connected = True" line. Obviously, I'm not handling things correctly, I wasn't expecting "If FClient.Connected" to raise exceptions and I was hoping the OnDisconnect event to trigger, but are there other pitfalls I might be missing?

I recently upgrade my main development machine from Windows 7 to Windows 10. The major thing I noticed is that executing my app under the debugger is slower and file access (on an SSD drive) also seems impacted even though benchmarks show that read/write/io speeds are identical to Windows 7. Is this something anyone else encountered and possibly found a solution?

I'm not using a VM.

I don't think so, my versions of Delphi & Windows already include the fixes for that issue. I'm starting to think it may be the real-time protection that I had disabled in Win7 and is more difficult to disable in Win10.

What is the best approach you would recommend for creating log files with output to multiple files and input coming from multiple threads (some threads writing into the same log file) with a volume that can reach 1000's of entries per second? Everything is running in a single process, so Critical section locks can be used and log entries must be flushed so they won't be lost in RAM if the process crashes.

Wouldn't inter-process communication severely lag this process?