I have an assignment where I have to alter a ppm image and send it to a function in another file to print the new altered version.
#include "transform.h"
int main (int argc, char *argv[]) {
// declarations here
FILE *inFile;
// open input file
inFile = fopen("tiger.ppm", "r")
[Code] ....
I am trying to do this.
if (isInteger(&(tokens[i][j])) == true || isDouble(&(tokens[i][j])) == true)
Instead of sending the address of the element at row I and column j, it send the address of the entire row I. What is wrong?
I am trying to send the maximum long value through function call, but i didn't print proper value..
[
#include <stdio.h>
long long floatToInteger_old(float value){
printf("float val : %e",value);
}
int main(){
float value = 340168346567;
long long finalhexVal = floatToInteger_old(value);
return 0;}
]
my actual output is 340168346567, but it is printing 3.401683e+011 or 340168343552.000000.
how can print exact value what i am sending.
I am writing an MFC app in Visual Studio 2012 that will open a JPG file as binary and read all the contents to a CString.
I am able to read it to a std::Vector, but that doesn't work much as i need to pass all the binary content as a MFC CString to another function.
More Update:
Let me explain the problem a little more deeper.
I am trying to call a JavaScript (JS) function in a HTML page and then want to pass the binary date. The C++ function that calls the JS is given below.
bool CallJavaScript(const CString strFunc,CComVariant* pVarResult);
The 1st argument is the JS Function Name and 2nd is the one to pass the Binary Data. 1st argument works fine as i am able to call the JS fucntion called "LoadImage" without any problem. Problem is with 2nd argument that's supposed to take the Binary data of the JPG file.
If i try to pass a std::Vector or std::string then it will give me an error.
But it's happy if i pass CString. But then with CString there's a problem with NULL characters.
Actually my plan is to pass the binary of a JPG to a JS function and let it display the JPG in the HTML page.
Can i typecast a Vector or std::string to a CComVariant*?
I have a function which send a string as argument to a txt file, like the following:
void Fprint(... ofstream& myfile, const string a, const int b)
......
myfile << "name: " << a << " age:" << b << "" << endl;
......
}
However, my IDE (msvc12.0) popup an error about the << before a, by citing "No operator matches these operands.
Share ur code wit my. m working on windows n using visual studio 2008..
View 1 Replies View RelatedI am trying to send a DIME Attachment as a HTTP POST using the libcurl. I using this to communicate with a SOAP API. All my other function work properly but I find the correct way to send a file as a DIME attachment.
View 4 Replies View RelatedHere is what I got so far, I am not able to send whats in the txt file to the server. Its pretty much a txt file with movie names and when the client types the name, it brings up the movie and its ranking (all from the txt file)
Server Code::
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <string.h>
#include <fcntl.h> //file control
[Code] .....
I attached the images of the client and server when I run this, along with the movie.txt file. I cannot seem to get the file to send to the client?
Attached image(s)
I am not able to send whats in the txt file to the server. Its pretty much a txt file with movie names and when the client types the name, it brings up the movie and its ranking (all from the txt file) .....
Server Code::
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
[code]....
I attached the images of the client and server when I run this, alongside the movie.txt file. I cannot seem to get the file to send to the client
This code doesn't send parameters to mysql database vis WININET post, i see it send empty fields, what exactly could be the problem:
Code:
#include <stdio.h>
#include <windows.h>
#include <string.h>
#include <Wininet.h>
#define PAGE_NAME "gate.php"
[Code] ....
I found the following code in [URL] ....., that send .TXT files perfectly to php script in my server using Wininet, but when I insert a .BMP file, this file (.BMP) is correctly created and named in server side, but it is empty! I read that is necessary implement base64 encode for work properly, so how would?
PHP Code:
#include <windows.h>
#include <wininet.h>
#include <iostream>
#define ERROR_OPEN_FILE 10
#define ERROR_MEMORY 11
#define ERROR_SIZE 12
[Code] ....
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 RelatedIn this one program (3 body problem), there are 6 inputs that are scanned (mass, velocity and position of the 2 bodies) and these inputs are computed to arrive at values for x, y and time for the third body. There is a working code that for of extremely small time steps, i.e over 5000 iterations, it produces values for x and y positions of the third body.
I believe this info is sent to an output file since there is a:
FILE* output=fopen("results.out", "w");
I want to play around with the code, insert different values for mass and velocity of the two bodies, but I don't know how to view the results? Im guessing I need to create a results.out file somewhere, but how do I go about doing this?
Do I need to assign memory to the results and then forward that to the output file somehow?
Here is the code : 3body.c
I have a compiler and what not, I'm just unsure how i can get these results out is all.
I am trying to establish a connection between client and server to send a file to the server from a client. I have been successfully able to send files to the server but i am facing a problem with the the filename whenever i try to send any string to the server and use it in naming the filename at the server side, the string is successfully concatenated but it saves the filecontents in the filename.
for example: i am sending a file hello1.txt to server and the server has to save it as abcxyz.txt as i am sending the "xyz" from the client. BUT Whenever i am doing this ,the file saves as abcxyzfilecontents.txt If i saved in the .txt file "you123" ,my file at server side would save as abcxyzyou123.txt
Here are my codes:
Know that the server code implements a multi threaded server. The functionality to be discussed is defined in myfunc
Code:
server.c:
#include <stdlib.h>
#include <stdio.h>
[Code].....
Consider I have a rectangle like this:
Point p1(100,100);
Point p2(300,200);
Graph_lib::Rectangle r(p1,p2);
And also I have a function that takes a rectangle and returns a Point of that, say, top-left corner of that rectangle. For example:
Point N(Graph_lib::Rectangle R1);
My question is that, first, how to send that Rectangle r(p1,p2) to the Point N(Graph_lib::Rectangle R1) function? And then, how to return a Point from that function?
My IDE is visual studio 2012.
My first time programming sth in Network. I have to use C to send a file to another PC, well COM port are useful but I didn't find how to refer to the address of my destination.
View 4 Replies View Relatedi developed 2programm that the first one is in C and the second one is in c#.and now i have to send some string text from c to c#.how can i do that in c ?
View 8 Replies View RelatedI'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?
how to send datapackets. When we send a data packet from device to another, say I have a "string". How Do I send it? Are data sent as a hex or binary number?If so do i first convert the "string" into hex or binary and then send it over the communication medium(say UART)??
I have two hex numbers to be sent using the UART, do i wrap it in some specific form and send it and retrieve it on the other side?Say if I have a data structure, in that case how do i send it? Sending data packets is very cruicial in an embedded system.
I am writing a client-server program in C++ using C libraries. The server listens for a connection and when one is found, it is supposed to send a binary file(an image in my case) to the client. The server is sending the binary file perfectly after opening it and reading its contents into a buffer that is dynamically allocated in the SERVER file.
The problem begins when the client file is supposed to recv() the file, I do not know how I can allocate a buffer big enough for the file to be received. I know how to use malloc() and new, I prefer malloc() for executable size customization. Assuming the file being sent is 11000 bytes(note that this is an assumption and the client can not know the file size because the file size is dynamically generated by server).
How can the client generate a dynamically allocated buffer big enough to hold 11000 bytes?
OR
How can the client store the data in a buffer using recv() without knowing the file size.
Below is part of the code that does the send()'ing and recv()'ing.
SERVER
FILE *img = fopen("img.jpg", "rb");
fseek(img, 0, SEEK_END);
unsigned long filesize = ftell(img);
char *buffer = (char*)malloc(sizeof(char)*filesize);
rewind(img);
// store read data into buffer
[Code] ....
This outputs all the binary code perfectly but it is a bug because it can't be written to a file. Is there a way to dynamically increase the buffer until all filesize is received? Certainly, buffer needs to be dynamically allocated or program crashes ...
Also one more thing, when I telnet the server from command line, telnet displays all the output perfectly as well
Maybe telnet is storing data into a buffer behind the scenes, if so, how?
I was wondering if there was a way for me to send information, say a username and password, to a webpage via a c++ function. I was unsure how exactly to word it, but I did attempt to google it. Here is an example of what I mean.
App starts -> goes to "Https://www.my-site.com/?user=$username&password=$password" -> username/password is valid -> logs them in on desktop app
I do not know much about php, but I am assuming the ?user=$username is setting a variable, correct? I am familiar with sockets, but it seems using the above method, this could be possible without sockets, would it?
Important part:
That is the method that minecraft uses to login players, the question here is what function could I start to send the desktop app to the webpage.
EDIT:: After looking a little more I find that it is probably not possible without sockets, which is fine; however I don't know how to do it still, I would prefer to not use external libraries, such as Curl.
so im just getting into network programming and im trying to make a chat server and client so i can send and receive messages. I have written both a chat and a client, with no error reporting (i know, i know). But the message that comes through on the server side is "hiiinaovH+". Ive represented this as well as i can but really they are non alphabetic symbols coming through.
client code:
#include <iostream>
#include <winsock2.h>
int main()
{
[Code]....
I'd like to be able to output sound over skype as if it were coming from my headset, how would I go about this?
View 1 Replies View RelatedI've been trying to send a command to another form, but it didn't work. Here's what I've done:
Form1:
I have a listview.
Form2:
I have a textbox and button.
I want to write something on the textbox from Form2, click on the button and let it appear on the listview on Form 1.
Here's my code, but doesn't work />
Form1
public void UpdateListBox(string data) {
ListViewItem lvi = new ListViewItem(data);
listView1.Items.Add(lvi);
}
Form2
private void button1_Click(object sender, EventArgs e) {
Form1 frm1 = new Form1();
frm1.UpdateListBox(textBox1.Text);
}
So I'm trying to send 2 keystrokes to a certain program. Let's say I would like to send the keystroke "1" twice, to notepad.
View 7 Replies View Relatedusing System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace test {
[Code] ....
I don't know if this is a bug in Winsock or the .NET Framework but i need to fix this or workaround. Recently I was working on a networking class and this error is breaking everything.
If you add Thread.Sleep(1) after Send() call then "TCP Bug detected" doesnt get executed but its not a reliable fix.