Curl GET Request [LNK2019]

[BlackPanda00]

Hi people, I'm trying to use libcurl to make a basic get request, but I can't even compile the project.
This is the code I am using:

#include <iostream>
#include <string>
#include <curl/curl.h>
using namespace std;

string data;

size_t writeCallback(char* buf, size_t size, size_t nmemb, void* up)
{
	for (int c = 0; c<size*nmemb; c++)
	{
		data.push_back(buf[c]);
	}
	return size*nmemb;
}

int main()
{
	CURL* curl;

	curl_global_init(CURL_GLOBAL_ALL); //pretty obvious
	curl = curl_easy_init();

	curl_easy_setopt(curl, CURLOPT_URL, "http://www.cplusplus.com");
	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &writeCallback);
	curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);

	curl_easy_perform(curl);

	cout << endl << data << endl;
	cin.get();

	curl_easy_cleanup(curl);
	curl_global_cleanup();

	system("pause");
	return 0;
}

And I'm getting this errors: http://puu.sh/jYsfj/e35d6da8c6.png
Thanks in advance for any tips/suggestions!!

[Ericool]

have you check if curl != NULL ?

[BlackPanda00]

How can I check that? I can't debug the program because it doesn't compile.

[Ericool]

Did you link the library ? I guess not . You should have a .lib and a .dll ,

add this precompiled instruction at the begginning

#pragma comment(lib , "THENAMEOFTHELIB.lib")

do not forget to add the extension .

If the lib is not in the same directory , then in the project properties , you should add the directory in the libraries directories .

Once that done , normally you should be able to compile , but you might get an error at launch saying that it could not find SOMENAME.dll .

For this , go to project properties and set the environment like so PATH=%PATH%;THEDLLDIRECTORY;

do not forget the semicolon at the end.

But you might as well copy the dll (s) to the exe dir .

Try that and reply if nothing worked out .

[BlackPanda00]

Ok you were right, it compiled and now it's giving me the missing dll error. I added it in Linker -> Input -> Additional Dependencies, but now I am getting this error:

error LNK1181: cannot open input file '.obj'

[Ericool]

Rebuild .

[BlackPanda00]

Same :(

[Ericool]

Remove the additionnal dependency and copy the dll to the same dir of the exe , just to see. And Rebuild

[BlackPanda00]

Well, I added #pragma comment(lib , "libcurldll.a") in the code, and this made the program compiling. But when I start it it tells me I need "libcurl.dll", and if I rename it, it tells me it's not made for windows.

[Ericool]

then you might miss a dll . Try to download it and put it in your exe dir .

[BlackPanda00]

I downloaded the dll from the web and now it's working, thanks a lot for your help!!
Is there any way I can "hide" the dll in my program, so it's just one file?

[Ericool]

no... but can create a folder called bin for dlls

[BlackPanda00]

Ok thanks a lot!! :)

[Ericool]

you're welcome.