I have issues with this i am new to winsock. so i was learning to use winsock for http POST request
Compiles correctly, but doesnt connect i get the error "Connection Failure" what do you think can be wrong
My code goes like this:
Code: #define WIN32_LEAN_AND_MEAN
#include "stdafx.h"
#include <cstdio>
#include <cstdlib>
#include <Winsock2.h>
[Code] .....
how do i send post with data to a php page on the net using c++? im using this for a file uploading site for my school group. and also, im planning to pass this as my project. but, i cant find a concrete way on how to send post method with data to a php page. ive been fed up with a lot of answers from the net, yet, each time i try to use them, i get errors. ive tried every library you can see till the third o of google. ive also tried a wrapper from this site, but, ive got no succes. im using dev c++.
View 5 Replies View RelatedI need to create C++ app that uploads a file using http request. I have the following php file on my server:
<?php
$uploaddir = '/var/www/uploaded/';
$uploadfile = $uploaddir . basename($_FILES['file']['name']);
echo '<pre>';
if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile)) {
[Code] .....
Now, i know the general idea of how its supposed to be done but I just cant get it right. Either my "post" message is wrong all the time or some library is not working properly. Im not even including the code for the application because I have 5 projects, each with different approach and none of them is working.
My user requires that I add function to an already working C server that will send to another host via http post and existing xml file. I have googled and found C# and C++ on how to do this but nothing using C. Where do I start?
View 1 Replies View RelatedIs there anyway to make when browser request some file from server than browser to load another file. Example:
I open [URL] ....
So now the browser send http request to load image [URL] ....
so when browser want to load that image to load this image [URL] ....
I do this now with [URL] ....
I think this can be done with Wininet.dll and WinHTTP.dll
I encountered error when compiling a simple project on my PC. However, other PC is working fine. Wonder what is missing from my PC?
1>------ Rebuild All started: Project: Test01, Configuration: Debug Win32 ------
1>Build started 12/10/2013 5:30:01 PM.
1>_PrepareForClean:
1> Deleting file "DebugTest01.lastbuildstate".
1>InitializeBuildStatus:
[Code] .....
Code:
int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]) {
int nRetCode = 0;
HMODULE hModule = ::GetModuleHandle(NULL);
if (hModule != NULL) {
// initialize MFC and print and error on failure
[Code] ....
Say I have a class that requires dynamic allocation to implement a few of the operators. Take "+" for example; I need to create a new object to hold the sum of the two parameters whose size is not known at compile time.
I'm pretty sure the standard way to indicate a failure inside the overloading function would be to throw an exception. However I am currently involved in an embedded(ish) project where the spec. says no exceptions are to be used.
I think I have 2 options:
1. Return an "invalid" object (with a flag indicating an error has occurred) and check for this after each operation.
a = b + c
if (a.err)
// handle error
or
2. To forsake operator overloading entirely and think up a new way of doing things where all functions that involve dynamic allocation can return error codes. but this seems rather terrible too as I may end up with something like:
objA a
if (add(&a, b, c) == -1) // assuming b and c are initialized before this snippet starts
// handle error
Is there a number 3 that I haven't thought of? It seems that not allowing exceptions is fairly common even in the non-embedded world [URL] so how is this normally done? or is operator overloading usually avoided when exceptions are not allowed?
I am having trouble with the array pointer and with the variables. I don't seem to have the pointer set up because the additional times the array is called it is empty. Also, if I don't use integers the program drops through. where I am going wrong?
Question is in the code
/*
NumClass
Main.cpp
*******************************************************************************************
*
* Design a class that has an array of floating point numbers. The constructor should accept an integer argument and dynamically allocate the array to hold that many numbers. The destructor should free the memory held by the array. In addition, there should be member functions to perform the following operations:
*
**Store a number in any element in of the array
[code].....
Write your question here. Hello World not working
they say
1>------ Build started: Project: HelloWorld1, Configuration: Debug Win32 ------
1>LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I used this video [URL] ....
#include <iostream>
using namespace std;
int main(){
cout <<"Hello World! " << endl;
return 0;
}
int main (int argc, char **argv) {
//int i,m;
double v1[kmax],v2[kmax],Ng,Lk[kmax],Hmax,Lmk[N],FD;
//double Lk1 = 0.0;
double x1[N];
loadImage("../sierpinski10.pgm");
printf("Bnorm[40][2] = %f",Bnorm[40][2]); //test
[code]...
Note:I am receiving error "Run-Time Check Failure #2 - Stack around the variable 'Lmk' was corrupted."
Under visual studio, this is a typical run time error,
Code:
void func(int x){
x = 3;
}
int main() {
int x;
func(x);
}
When x is passed to the function func, it is not initialized. But my question is that why it should be an error? On the other hand, if I change the definition of func a little bit like this,
Code:
void func(int& x) {
*x = 3;
}
int main() {
int x;
func(&x);
}
Now in main, x is still not initialized, but this time there isn't a run time error like "the variable is being used without being initialized. Why?
I get this error:
run-time check failure #0 - the value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention
when i try to run my code. It has compiled fine on another computer, but it simply will not work on this one. This is the part of code where it is receiving the error. it has to do with the stoi
Code:
#include <string> // for use of string
#include <fstream> //for file handling
#include <iostream> // for file handling
#include <cstdlib>
#include <iomanip> //for the setprecision used further below
using namespace std;
struct MasterData //struct created named 'MasterData' to hold one line from master file
[Code] .....
i want to write a c++ program that could pass a web page request, using a php script in a dns server. And also passed by the quested page to the software. What i really want to do is a software that can redirect a page request.
View 1 Replies View RelatedSee Title.
View 3 Replies View RelatedI made a game, but to finish i need to communicate the users score to a website. i want it to post the score. i tried to look this up but it all went above my head. is there a simple way to do this?
View 8 Replies View RelatedHere is the site that I want to interact Genderchecker
I want to set a value to a specific element in a web site. Perform a click on an element that is image. Get the result <span> text into string variable...
What should I use ?
How do I do a get/post for an array in c#? In C#, you get and set variables like this:
public int ID { get; set; }
How would one get and set an array in C#?
This will not work:
public uint [5] BIG_Hash {get; set;}
I'm writing a small c++ program which will be able to do a few things with a matrix. I have a class called Matrix and a member function in it called getSor() which returns an integer value about the number of lines in the matrix. When I call this getSor() function the program says: error: request for member ‘getSor’ in ‘matrix’, which is of non-class type ‘Matrix*’
- 'matrix' is an existing Matrix object here
- I called the function like this: "cout << matrix.getSor() << endl;"
I'm building a project in my free time and in the last part of it I need to fill a form of a website and then 'hit submit', but how it can be done. Btw the form is a 'POST' form so it's harder than a 'GET' one.
View 2 Replies View Relatedi have a page (which i did not create) which opens as a modeless box with a save button. The save works great in saving comments. However the client wants to have the comments update on the page where the link is for the editable modeless box. is there a way to post pack to the original page to force the page to refresh the information?
info:
All information is gathered on the page load event.
there is a section that shows all the comments for a certain item
a link to edit the comments that opens up a modeless box
save button in the modeless box
I have tried the
Page.ResolveUrl(
And response redirect but they give me errors of unknown url) i am guessing it has something to do with the dynamic data crap.
I want to know how to respond to a request made by a mobile application (preferably Android) through a desktop software. So for example if there is a button on the mobile app named 'do something and a user clicks it, I want the desktop software to respond to that request and 'do something
So what I was thinking was to upload a file to a server when the button on the app is clicked and add a timer to the desktop software to connect to the server and read the file and respond accordingly.
Is this how it is usually done or am I going about this the wrong way? Im developing the app in C# (Xamarin) and the desktop software in C# as well.
I am trying to create "dummy" drivers for testing purposes of another program of mine.
I want to be able to Call DeviceIoControl and pass a string in as the buffer and then receive that string in the driver, change it and return it. But right now I am not able to receive the string, when i get the buffer and print it out it is garbage. Where am I going wrong?
TEST
int _tmain(int argc, _TCHAR* argv[]) {
BOOL freeResult, runTimeLinkSuccess = FALSE;
HANDLE RTC_IOControlHandle = NULL;
HINSTANCE FRS_IOControlHandle = NULL;
RTC_IOControlHandle = CreateFile(L"\.ROOT#SAMPLE#0000#{db3d5a0e-63aa-4b97-9d05-b50d5093a20f}",
FILE_SHARE_READ | FILE_SHARE_WRITE,
0,//FILE_SHARE_READ | FILE_SHARE_WRITE,
[code]....
I'm trying to send a simple text string using httpsendrequest, everything works fine, the string is sent but I don't know how to retrieve it in the PHP server. Also when I use internetreadfile, the dwBytesRead is 0 meaning that there is no response from the server though the application works fine. This is the code that I have so far.
#define _WIN32_WINNT 0x600
#include <stdio.h>
#include <wininet.h>
#define BUFLEN 200
static const char *acceptTypes[] = {"application/x-www-form-urlencoded", NULL};
static const char *postData = "teststr=Hello+world&testval=42";
int main() {
HINTERNET hSession, hConnect, hFile;
[code].....
I have problems relating the HTTP server request line validation into a c++ code, where the request line is defined as follows:
method SP request-target SP HTTP-version CRLF
and the server supports absolute-path [ "?" query ]
At the same time absolute-path must start with / and might optionally be followed by a ? followed by a query, which may not contain ".
Basically, method must be GET, request-line must begin with / , request-target cannot contain " ,HTTP version must be 1.1 (HTTP/1.1), and the absolute-path must contain the character .
I need to write an interface program in C++ to receive occasional data being sent to me from a different company from across the internet. The company says they will send the data using POST. They have given me a document that lists their data specific parameters and their meaning.
How do I receive this data in my C++ program?
I'm connecting to my website through sockets, like this:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <winsock2.h>
#include <string.h>
int main(int argc, char *argv[]) {
WSADATA wsadata;
if (WSAStartup(MAKEWORD(2,2), &wsadata) == -1)
[Code]...
I want to send GET to a certain web page. How can I do that?