Question

A Windows process created from an exe file has access to the command string that invoked it, including its file’s path and filename. eg. C:\MyApp\MyApp.exe --help.

But this is not so for a DLL invoked via LoadLibrary. Does anyone know of a way for a function loaded via DLL to find out what its path and filename are?

Specifically, I’m interested in a solution using the Delphi Programming Language, but I suspect that the answer would be pretty much the same for any language.

Answer 1

I think you’re looking for GetModuleFileName.

http://www.swissdelphicenter.ch/torry/showcode.php?id=143:

{   If you are working on a DLL and are interested in the filename of the   DLL rather than the filename of the application, then you can use this function: }  function GetModuleName: string; var   szFileName: array[0..MAX_PATH] of Char; begin   FillChar(szFileName, SizeOf(szFileName), #0);   GetModuleFileName(hInstance, szFileName, MAX_PATH);   Result := szFileName; end; 

Untested though, been some time since I worked with Delphi 🙂