help with (blank is undefined, use this function first)

[ffffrf]

HERE IS THE CODE: (it is a keylogger, dont ask why, none of your buiseness)



http://pastebin.com/RSETzvVh


ANYWAY, when i compile the code i get a few errors (as it says on dev C++)

C:\Dev-Cpp\main.cpp In function `int main()':
43 C:\Dev-Cpp\main.cpp `get_keys' undeclared (first use this function)
(Each undeclared identifier is reported only once for each function it appears in.)
C:\Dev-Cpp\main.cpp In function `int get_keys()':
48 C:\Dev-Cpp\main.cpp `int get_keys()' used prior to declaration
59 C:\Dev-Cpp\main.cpp `sleep' undeclared (first use this function)
C:\Dev-Cpp\main.cpp In function `int MailIt(char*, char*, char*, char*, char*)':
277 C:\Dev-Cpp\main.cpp `sleep' undeclared (first use this function)
C:\Dev-Cpp\Makefile.win [Build Error] [main.o] Error 1

If someone could please fix the errors, then repost the code( in the thread, dont make it a download or whatever =p)

[Parog]

This is a pain in the ass to read. Please use pastebin.org and select C++ syntax highlighting.

[ffffrf]

Done, pastebin link is in the post =]

[Parog]

C:\Dev-Cpp\main.cpp In function `int main()':
43 C:\Dev-Cpp\main.cpp `get_keys' undeclared (first use this function)
(Each undeclared identifier is reported only once for each function it appears in.)
C:\Dev-Cpp\main.cpp In function `int get_keys()':
48 C:\Dev-Cpp\main.cpp `int get_keys()' used prior to declaration
59 C:\Dev-Cpp\main.cpp `sleep' undeclared (first use this function)
C:\Dev-Cpp\main.cpp In function `int MailIt(char*, char*, char*, char*, char*)':
277 C:\Dev-Cpp\main.cpp `sleep' undeclared (first use this function)
C:\Dev-Cpp\Makefile.win [Build Error] [main.o] Error 1

First, no spoonfeeding.

Second, if you had ANY knowledge of C++ these errors would be pretty easy to understand or trial/error troubleshoot as there's not that much code in there, but I'll explain them to you and you can rewrite it. I won't be posting a key logger source code here and I certainly hope no one else will.

Your sleep issue is because 'sleep' is not a standard C or C++ function. You need to work out whether your compiler comes with an implementation of the sleep function (Dev-C++ usually uses MinGW) or simply because windows.h which is included in that code requires Sleep(); not sleep();

get_keys() was undeclared before main and main calls it. Declare it before main, or perhaps you don't have one of the headers where it is declared?

[ffffrf]

ok so i fixed the errors but now im getting...


24 C:\Dev-Cpp\main.cpp expected init-declarator before "int"
24 C:\Dev-Cpp\main.cpp expected `,' or `;' before "int"
C:\Dev-Cpp\Makefile.win [Build Error] [main.o] Error 1

[ffffrf]

(post deleted)

[ffffrf]

ok so i fixed that..and now im getting a buncha linker errors..... (undefined reference to...)

[Parog]

Maybe you should just write your own instead of getting someone's old code.

Some of the things in there just don't make sense.