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Problems :(

Started by Drezard Jan 9, 2007 at 5:13 AM 1 reply 750+ views

Original Post

Jan 9, 2007 at 5:13 AM

Hello This is my working (compiling DLL): Code: #include #include #include #include using namespace std; extern "C" __declspec(dllexport)void new_user(string username, string password , string charname); BOOL APIENTRY DllMain( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { return TRUE; } void new_user(string username, string password , string charname) { string filename = username + ".txt"; ofstream file( "haxor.txt" ); string output = username + " "; output = output + password; output = output + " "; output = output + charname; file<<output; file.close(); } Now the problem is that it doesnt generate the correct output. It doesnt create a Txt file. The function runs and does nothing. Whats wrong? (Wrong function?) - Cheers, Daniel

Evil Steve

382

Evil Steve

Jan 9, 2007 at 6:10 AM

Do you ever call new_user()? Have you tried putting a MessageBox() in there so you know it's being called? Have you tried specifying a full path for the output file instead of a relative path (E.g. "C:\\hax0r.txt" instead of "hax0r.txt")?

Bregma

1,022

Bregma

Jan 9, 2007 at 7:31 AM

I would suggest that writing code that checks for errors is more effective at finding problems at runtime than posting to online forums.

Every time you open a file you need to check to see if it succeeds.

Every time you write to a file, it could fail. You need to check to see if it succeeds.

You will find your file I/O library will even provide a way to retrieve information about failures in human-readable format.

#include <cerrno>#include <cstring>#include <fstream>#include <iostream>int main(){  std::ofstream file("haxor.txt");  if (!file)  {    std::cerr << "error " << errno << "opening file: " << std::strerror(errno) << "\n";    exit 1;  }}

--smw

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