I'm writing a school assignment that writes/reads user input into and out of a binary file.
I've gotten the write part to work, but now I need to be able to read that file back in and display it as a string.
I think I should be using fread() and read my file into an array of int's right? But when I try printing out that array I get a whole bunch of numbers that don't match the hex code in my file.
How do I read in a binary file and print it out as a string?
I'm trying to write a program which prints a table of ASCII chars, I'm not really done with my thoughts on it but I already ran into the following error:
Error: cannot initialize a variable of type 'char' with an rvalue of type 'char (*)[16]'
Here's my code so far:
# include <iostream> using namespace std; int main() { char asciiTable = new char[8][16]; int nextSign = 0;
I'm trying to print Chinese/unicode characters to a line printer(EPSON LQ-2090) using the writePrinter method in c++.
ANSI characters print fine, but when I throw the buffer of widechar Chinese characters at it, they come out like garbage/ANSI chars.
while debuging string shows chinese characters but in memory it shows ANSI characters not chinese and these ANSI characters are get printed on printer.
Note that if I change the DocInfo datatype parameter to "TEXT" instead of "RAW" then also the Chinese characters donot print.
Is there a way to get Chinese or unicode characters to print correctly?
I have some code that was compiled without Unicode turned on in the Preprocessor Definitions. I need to access an API that had Unicode turned on in the Preprocessor Definitions (I believe that it is on by default for DLL's) .
I need to call a function in the DLL that requires a structure like:
struct READERINFO { TCHAR serial[32]; TCHAR altSerial[32]; TCHAR name[32]; TCHAR fccId[48]; TCHAR hwVersion[16]; int swVerMajor; int swVerMinor; char devBuild; };
It returns some information in the structure some of it is Unicode based however the program that is calling it is not Unicode. The preprocessors are not turned on because if they were there would be a lot of things to change in this code. The code is old code that I inherited and now I must interface to some new devices.
I declare my structure as :
READERINFO info; Then I call the function in the DLL which looks like: ApiGetReaderInfo(hAPI, &info, sizeof(into));
Which is defined as: ApiGetReaderInfo(HANDLE hApi, Struct READERINFO * ri, DWORD riSize);
Parameters:
hApiHandle to valid Api object instance riPointer to the READERINFO structure. riSizeSize of ri structure in bytes. Usually: sizeof(struct READERINFO).
When I call it from my program that does not have UNICODE defined in the Pre-Processors I get :
Characters like : ÌÌÌÌÌ in the TCHAR fields and invalid numbers in the integer fields. int ModuleVersion(HANDLE hApi) { struct READERINFO info; ApiGetReaderInfo(hApi, &info, sizeof(info));
[Code] ....
When I call it from my program that has some sample code just for this and has the UNICODE defined in the Preprocessors it works just fine. how I can call this from my old code and get the correct information. I have already tried to do the follow without success:
I'm trying to have a button marked by the sqrt sign, '√'.
I wrote below code and typed that sign by holding down "alt" and typing 251 using numpad. But result is the question mark instead of sqrt mark!
My machine is Windows 7 x86 and IDE is visual studio 2012.
#include <GUI.h> using namespace Graph_lib; //--------------------------------- class Test : public Window { public: Test(Point, int, int, const string&);
I'm looking for a algorithm to search portions of string that have the same caracter. The only possible values are: a,n and g
Char index: 0 1 2 3 4 5 6 7 8 9 RESULT ------------------------------------------ Example 1: a g g g a a 0,4 Example 2: g g g a n n a 0,3 Example 3: a g g g g g g a 0,7 Example 4: g g g g g g g 0,6 Example 5: g g a a g a a a g 0,2,3,5,7,8
I'm having some problems in receiving fileNames from Server to Client(C++) in Mac OS X. I send a serialized object , which has a char pointer with the fileName or sometimes a string object, when i receive it in the client, it seems to be having %F6 or %E9 ,etc . This issue don't arise in Windows OS though, even thought it's the same code. Is there anyway decoding these '%' characters back to their original form in Mac OS & Linux ..?
Fex characters i got into problems with : ǡ ȅ ȉ
It would be difficult to change the code in server, so if there's a way decoding the characters back to its original form, it would be easier.I'm using Boost Library for Serialization and i'm just looking for ways to decode %F6 back to ȅ in C++, like if some library is available ..?
I'm working on a homework project, and it requires me to read in a file of chars into an array, and then do stuff with that array.
Anyways, I have the first part written, where I'm just trying to read in my data.txt file, and I thought I had it written well. It compiles, but then it seg faults, and I'm not sure why. I used calloc for the array, but maybe I misused it? Or is it in my EOF statement? I'm still not sure if that's coded correctly. I need to get past this so I can start testing the other parts of my code.
Code: #include <stdio.h> #include <stdlib.h>
int main(int argc, char* argv[] ) { /* Local Declarations*/ int i; int *ptr; char tempc;
I am trying to convert some chars to UTF-8 strings...
Example:
std::string gethex(char c) { /* EXAMPLE if (c == 'é') return "%c3%a9"; I need a function that converts chars like "á, é, í, ã" to UTF-8 hexadecimal strings... */ }
[Code] .....
[URL] .... does it. Choose UTF-8, type some character and click 'Url Encode'.
(below) on a website which is used for printing the characters as the keys on keyboard are hit i-e without hitting the ENTER key. This method is used in a while loop like this
Code: while ((c = win_getch()) != 13) {}
I wanted to know why is the character compared to
Code: 13 i-e Code: if((c = win_getch()) != 13) then do something
Code: /** * This function will simulate the getch() function from conio.h. * Note that this does not work for special keys like F1-F12, arrow keys, * even the ESC key does not seem to work with this function. * @return TCHAR read from input buffer. */ TCHAR win_getch() { DWORD mode; TCHAR theChar = 0;
After executing the first codeline strTempW.Format(L"%c", 0xFFFF), I will get strTempW of length 1, but cannot see it first character in Visual Studio watch window.
After executing the codelilne strTemp1 += strTempW, I will get strTemp1 of length 0.
Whether 0xFFFF is taken as a valid Unicode or not?
In my project , we need to create an Array of Unicode Strings . The Array will contain 5000 Strings.
I need to write those strings to a text file which can be opened or edited with NotePad.
Normal _tfopen and fwrite are not able to create notepad compatible .txt file .. I mean the file I created is not readable with Notepad though file open mode is "w+t"
