Can a Windows dll retrieve its own filename?
Question
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.
Solution
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 :)
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