C/C++ :: Read Encrypted File Windows Form Application
Sep 27, 2013
I need to be able to actually read my encrypted file..
I have the decryption code and works perfectly when running it through console app c++.
But, the way I decrypt is to decrypt from a file, and create a new file which is decrypted.
I can't use that kind of code in my program in windows form app c++..
I need to read the encrypted text file and decrypt it in memory while using it for my program..
Some links to my codes I use at the moment.
My decryption coded in console application: [URL] ....
My decryption code edited for form application (Did not do anything) [URL] ....
And this is the code I tried to read after it got decrypted (Reading file written in combobox_selectedindexchange: [URL] ....
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Jun 15, 2013
How to use string variable in windows form application?
I'm using Microsoft Visual C++ 2010 Express And where to include libraries?
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Nov 1, 2014
I'm building a Windows Form Application using MVP Design Pattern; the application is quite simple, it just calculates the sum of two number; So I have a form in which are located tree textbox: number1 number2 and result, plus a button to perform the action.
interface ICalcView {
string firstN { get; set; }
string firstN {get; set;}
string result { get; set; }
[Code] ....
Do you think that is a good base to start? Any code example to understand the execution flow and how to handle events?
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i want to open image in windows from application but it's not showing the image. here is my code/////
using (OpenFileDialog dlg = new OpenFileDialog())
{
dlg.InitialDirectory = "c:";
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[Code].....
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I am not sure what to use for this. I have been writing the application as a Windows Form Application (Visual C#) but I do not know whether this is the best choice. Should it be a windows form application or web application? Should I use something else?
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Sep 28, 2012
I wrote this code behind a button
"
colordialog.showdialog();
File.WriteAllText("dlg.txt",this.BackColor.Name);
"
And I wrote this code in Form Load as well
"
this.BackColor = Color.FromName(File.ReadAllText("dlg.txt"));
"
but I got an error and I dont know what is this.... "Control does not support transparent background colors"
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Sep 23, 2014
I have been struggling to read a certificate in windows store from C++ DLL, but its not happening. from console application I can but when same code built as a DLL and tried to access from a separate console application. I think its not going to windows store to read the cert.
pCertContext = CertFindCertificateInStore((HCERTSTORE)*pCertStore, X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, 0, CERT_FIND_ISSUER_OF, operator PCCERT_CONTEXT(), pCertContext);
int Error = GetLastError();
if (Error == 0)
LINFO << "
Signtuare is valid
";
else
LINFO << std::hex << Error << '
' << "GetLastErrorStdStr=
" << GetLastErrorStdStr();
it returns 80092004 GetLastErrorStdStr= C a n n o t f i n d o b j e c.
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I probably write it wrong, but I can't remember the correct way. In examples I only see that instead of -> dot is used, but it doesn't work either.
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Dec 7, 2014
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StreamResourceInfo sri = System.Windows.Application.GetResourceStream(
new Uri("App.xaml", UriKind.Relative));
var resources = (System.Windows.ResourceDictionary)Load(sri.Stream); ;
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Dec 9, 2014
How can i put double click to open the file in treeview
private void button1_Click( object sender, EventArgs e ) {
XmlDataDocument xmldoc = new XmlDataDocument();
XmlNode xmlnode;
[Code] ....
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Nov 3, 2013
I have been working on some C++ code that doesn't seem to be going right. I'm wanting it to read a (three-digit) integer representing the value to be encrypted, a (one-digit) integer representing the encryption key, encrypt the value and print the encrypted value. The encrypting method used is that each digit in the given number is replaced by ((the sum of that digit plus key) modulo 10) then the first and last “encrypted” digits are swapped.
For example, if the number entered was 216 and the key given was 7, after applying the encryption procedure described the first digit (2) would become 9, the middle digit (1) would become 8 and the last digit (6) would become 3. The first and last encrypted digits are then swapped. The program displays the encrypted number: that is 389 in this case.
#include <iostream>
using namespace std;
int main() {
int isolateDigits();
int replaceDigits();
int swapDigit1withDigit3();
[Code] ....
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Nov 4, 2014
For an assignment I have to write a program which basically converts 8 bit binary numbers to ASCII and outputs the assembled text. Here's the catch:
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(./"conversion program" < external_file.in).
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Is it possible to create a vector which dynamically adjusts itself until there are no more strings = end of the file?
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Dec 10, 2014
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#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
using namespace std;
const int NUM_STUDENTS = 17;
const int NUM_QUIZZES = 10;
const int NUM_EXAMS = 5;
[Code] .....
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Mar 20, 2014
I'm fairly new to visual C++ programming in a windows form and the code displayed below works fine. However my issue is as soon as the program is running it will display "failure" on label7 as soon as the button is clicked. I understand why it is doing this as "a" is not in the textbox at this time so it reads the else line and displays the message. When I enter "a" in the textbox everything works fine and label7 changes to the right message.
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[code].....
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Feb 21, 2015
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Sep 30, 2014
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May 3, 2015
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{
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "Excel Documents (*.xls)|*.xls";
[Code].....
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May 10, 2012
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Jan 15, 2014
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Nov 20, 2014
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Dec 4, 2014
Alright, so I'm making a windows form with a few hundred buttons, and one button will change color based on data the program receives over a socket. This is what I have, and it kind of works, but I don't want to have to make another if statement for all 260 buttons.
void hitmiss(std::string u){
std::string^ ind = reccdata2();
if (u == "button6"){
if (ind == "1"){
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this->textBox2->Text = L"hit";
[Code] .....
What I want to do is make it more like
void hitmiss(System::String^ u){
std::string^ ind = reccdata2();
if (ind == "1"){
this->u->BackColor = System::Drawing::Color::Red;
this->textBox2->Text = L"hit";
[Code] ....
But it returns the error that u is not a part of Form1.
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