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Get Username via DllCall
Keywords: username DllCall Advapi32.DLL
Question:
I have problem calling the function "GetUserNameA" in the dll Advapi32.dll. This is what i did but i get a Dr-Watsondllname=strcat(dirwindows(1),"Advapi32.DLL") PTRBB=BinaryAlloc(100) ; allocate a memory buffer of n bytes a3 = 100 DllCall(dllname, lpstr:"GetUserNameA", lpbinary:PTRBB, long:a3) BinaryEODSet(PTRBB,100) ; set the end of a2=BinaryPeekStr(PTRBB, 0, 100) Message(a1,a2) BinaryFree(PTRBB)
Answer:
The basic problem was that the size variable was actually a pointer to the size variable, so it also had to be stuffed into a binary buffer.
dllname=strcat(dirwindows(1),"Advapi32.DLL")
bufsize=100
PTRBB=BinaryAlloc(bufsize) ; allocate a memory buffer of n bytes
PTRNAM=BinaryAlloc(4)
BinaryPoke4(PTRNAM,0,bufsize)
DllCall(dllname, long:"GetUserNameA", lpbinary:PTRBB, lpbinary:PTRNAM)
BinaryEODSet(PTRBB,100) ; set the end of
username=BinaryPeekStr(PTRBB, 0, 100)
Message("Username",username)
BinaryFree(PTRBB)
BinaryFree(PTRNAM)
Article ID: W15134
File Created: 2002:09:05:13:49:52
Last Updated: 2002:09:05:13:49:52