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Can a Windows dll retrieve its own filename?

StackOverflow https://stackoverflow.com/questions/2043


A Windows exe file has access to the command string which invoked it, including its 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 dll to find out what its path and filename is?

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


I think you're looking for GetModuleFileName.


  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;
  szFileName: array[0..MAX_PATH] of Char;
  FillChar(szFileName, SizeOf(szFileName), #0);
  GetModuleFileName(hInstance, szFileName, MAX_PATH);
  Result := szFileName;

Untested though, been some time since I worked with Delphi :)

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