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Overview What if you were able to load and use C99 sources directly from Delphi? There is a vast quantity of C libraries out there and being able to take advantage of them, without being a pain would be nice. You could even compile a bunch of sources and save them as a library file, then load them back in from disk, a resource or even from a stream. You can get the symbols, map to a C routine, and execute from the Delphi side all from a simple API. Downloads Releases - These are the official release versions. Features Free for commercial use. Allow C integration with Delphi at run-time. Support Windows 64-bit platform. Support for C99. Fast run-time compilation. Can run C sources directly or compile to (.LIB, .EXE, .DLL). Library files can be loaded and used at run-time from a file, a resource or stream. Import symbols directly from a dynamic linked library (.DLL) or module-definition (.DEF) file. You can reference the symbols from Delphi and directly access their value (mapping to a routine and data). Your application can dynamically or statically link to CPas. Direct access to the vast quantity of C99 libraries inside Delphi. Minimum System Requirements Delphi 10 (Win64 target only) FreePascal 3.3.3 (Win64 target only) Microsoft Windows 10, 64-bits 20MB of free hard drive space How to use in Delphi Unzip the archive to a desired location. Add installdir\sources, folder to Delphi's library path so the CPas source files can be found for any project or for a specific project add to its search path. Add installdir\bin, folder to Windows path so that CPas.dll file can be found for any project or place beside project executable. See examples in installdir\examples for more information about usage. You must include CPas.dll in your project distribution when dynamically linked to CPas. See CPAS_STATIC define in the CPas unit file. See installdir\docs for documentation. A Tour of CPas CPas API You access the easy to use API in Delphi from the CPas unit. {.$DEFINE CPAS_STATIC} //<-- define for static distribution type { TCPas } TCPas = type Pointer; { TCPasOutput } TCPasOutput = (cpMemory, cpLib); { TCPasExe } TCPasExe = (cpConsole, cpGUI); { TCPasErrorMessageEvent } TCPasErrorEvent = procedure(aSender: Pointer; const aMsg: WideString); { Misc } function cpVersion: WideString; { State management } function cpNew: TCPas; procedure cpFree(var aCPas: TCPas); procedure cpReset(aCPas: TCPas); { Error handling } procedure cpSetErrorHandler(aCPas: TCPas; aSender: Pointer; aHandler: TCPasErrorEvent); procedure cpGetErrorHandler(aCPas: TCPas; var aSender: Pointer; var aHandler: TCPasErrorEvent); { Preprocessing } procedure cpDefineSymbol(aCPas: TCPas; const aName: WideString; const aValue: WideString); procedure cpUndefineSymbol(aCPas: TCPas; const aName: WideString); function cpAddIncludePath(aCPas: TCPas; const aPath: WideString): Boolean; function cpAddLibraryPath(aCPas: TCPas; const aPath: WideString): Boolean; { Compiling } procedure cpSetOuput(aCPas: TCPas; aOutput: TCPasOutput); function cpGetOutput(aCPas: TCPas): TCPasOutput; procedure cpSetExe(aCPas: TCPas; aExe: TCPasExe); function cpGetExe(aCPas: TCPas): TCPasExe; function cpAddLibrary(aCPas: TCPas; const aName: WideString): Boolean; function cpAddFile(aCPas: TCPas; const aFilename: WideString): Boolean; function cpCompileString(aCPas: TCPas; const aBuffer: string): Boolean; procedure cpAddSymbol(aCPas: TCPas; const aName: WideString; aValue: Pointer); function cpLoadLibFromFile(aCPas: TCPas; const aFilename: WideString): Boolean; function cpLoadLibFromResource(aCPas: TCPas; const aResName: WideString): Boolean; function cpLoadLibFromStream(aCPas: TCPas; aStream: TStream): Boolean; function cpSaveOutputFile(aCPas: TCPas; const aFilename: WideString): Boolean; function cpRelocate(aCPas: TCPas): Boolean; function cpRun(aCPas: TCPas): Boolean; function cpGetSymbol(aCPas: TCPas; const aName: WideString): Pointer; { Stats } procedure cpStartStats(aCPas: TCPas); function cpEndStats(aCPas: TCPas; aShow: Boolean): WideString; If you want CPas to be statically bound to your application, enable the {$CPAS_STATIC} define in the CPas unit. How to use A minimal implementation example: uses System.SysUtils, CPas; var c: TCPas; // CPas error handler procedure ErrorHandler(aSender: Pointer; const aMsg: WideString); begin WriteLn(aMsg); end; begin // create a CPas instance c := cpNew; try // setup the error handler cpSetErrorHandler(c, nil, ErrorHandler); // add source file cpAddFile(cp, 'test1.c'); // link and call main cpRun(cp); finally // destroy CPas instance cpFree(c); end; end. Compatibility These are some libraries that I've tested. If you have tried more, let me know and I can add them to the list. miniaudio (https://github.com/mackron/miniaudio) raylib (https://github.com/raysan5/raylib) sfml (https://github.com/SFML/CSFML) stb_image (https://github.com/nothings/stb) stb_image_write (https://github.com/nothings/stb) stb_truetype (https://github.com/nothings/stb) stb_vorbis (https://github.com/nothings/stb) Media ❤ Made in Delphi