I intend writing a Windows form c# application that freezes windows and disables all other running application in the background while executing for security reasons. How I could go about this?
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I need to write a windows form application that allows the user to enter a credit card number and credit card type and then determines whether it is a valid number using the following rules:
1.) the first number is:
a. 4 for visa
b. 5 for master card
c. 37 for american express
d. 6 for discover
2.) passes the mod 10/ luhn check, which is calculated as:
a. from right to left, multiply every other digit by 2. when doubling a digit results in a two digit number, add the numbers to get
a single digit. ( like 6 * 2 = 12 therefore 1 + 2 = 3).
b. add all the single digits from 2a
c. add all the odd places from right to left in the card number
d. sum the results fro steps 2b and 2c
e. if the resulting number in 2c is divisible by 10, the card number is valid otherwise it is invalid.
The chapter is introducing methods so that is the main thing i will be using for each step.
I'm looking for a library which enables me to take screenshots of a all open applications, and store them as .bmp or .jpg .
I've tried to find something but so far no luck
I don't necessarily need code just a library with good understandable documentation (if such a thing exists). Also, is something like this possible for a beginner-intermediate c++ user? If not where should I start?
I'm trying figure out how Windows Firewall functions by experimenting with Bittorrent's add exception to windows firewall option, I deleted the entry from the Firewall options and also located that the regkeys are in HKLM/System/CurrentControlSet/Services/SharedAccess/Parameters/FirewwallPolicy but I can't figure out what registries are made when an application is added as an exception in the Windows Registry.
View 6 Replies View RelatedI have an client application and server application, I want to make an update program, In my program I want client send a message to server if there is an new version or not, and server reply with a text message ,send will be done via web service .
View 1 Replies View RelatedI have a C++/MFC application that displays a count in a window:
The count (text) is displayed via a `CStatic` control. The mechanism is very simple. I call it every 1000 ms and update the text as such:
Code:
void CTestCountdownFlickerDlg::RedrawCounter(LPCTSTR pText)
{
CStatic* pTxtBox = (CStatic*)this->GetDlgItem(IDC_STATIC_COUNTER);
ASSERT(pTxtBox);
[Code]....
What happens is that the `CStatic` control updates without any issues on the OS with visual themes enabled, but if I run it on the OS with the Windows Classic theme (for instance, the screenshot above is from Windows 7) the `CStatic` control produces a visible flicker every time it updates the text.
Well, I understand that I'm nitpicking here, still I would really like to get rid of this flicker.
Here's what I tried:
1. In my actual project I tried subclassing the `CStatic` control and removed the processing of `WM_ERASEBACKGROUND` by simply returning 1. That didn't work.
2. In the same subclass for `CStatic` control I tried to override `WM_PAINT`, but that didn't work at all. So I'm not sure if I'm going too far with it at this point.
I'm attaching the C++/MFC source code for my test project .....
I need to do an equivalent of kill -11 <pid>(which is in unix) in windows.
I need to crash a process with SEGV so that it would dump core in windows. Is there any tool by which we can do this . Also is there any sample code through which we can achieve this .
In windows we have taskill which only terminates a process , but is unable to send a signal like SEGV to the process upon which it would terminate and dump core .
actually it is the windows application .When i'm running my program it is not allowing me to enter the data into textboxes means the cursor is not appearing
View 1 Replies View RelatedI wrote this code as an assignment
Code:
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
main(){
int story, age=0;
int ranColor, ranCar, ranItem;
[Code] ....
And my compiler keeps freezing/crashing. using Dec C++
I am using a windows application to start other processes. I am looking for a way to keep the form itself as the topmost program until it is closed, allowing the other programs enough load time.
View 1 Replies View RelatedI want to display the related tab information in the same tab space provided in the TabControl.
View 2 Replies View RelatedI'm animating a human hand made in blender, so I allredy the hand, but I don't know how can I load this .obj to a windows form aplication that I'm working on. I need to load this .obj and animated .....
View 4 Replies View RelatedI have made a new Windows Phone App and I would like there to be two versions: one without ads (79p) and one with ads (free). I have sorted out everything expect one issue. I collapse the advert if the app is in the full version but the rest of the page stays the same. How do I move the 'content panel' after the advert is collapsed?
View 1 Replies View RelatedI have to display google maps in a windows form. I managed to display the map in the form like this link: [URL] ...
But i have to display only the frame with the map in the form..not the whole page.
I have written a windows service which run continuously on a server. Interval time is 9 sec. On timer1_interval i am fecthing record from database and sending it to user. And changing its record status.
this service stop fetching records after running 4 to 5 days. We need to restart the service. there is no GUI involve in this code
My program seems to be working fine, except for when I call on my delete function. I don't receive any errors, but when I call the delete function my program outputs nothing and freezes. As in, my print function (which is called before the delete function) doesn't even work. I've tried removing bits of the function to see if I could pinpoint where exactly the issue is, but I've had no luck.
#include <iostream>
#include <string>
using namespace std;
class List{
private:
struct node{
string _data;
[Code] ....
And the function that is causing me trouble:
void deleteNode(string data){
node* del = NULL;
t = h;
n = h;
while(n != NULL && n->_data != data){
[Code] .....
In my class I'm trying to display the elapsed time as my label on a windows form. I've been reading up on all the different articles online and have tried these three methods all with the same result:
1. Using the System.Timers class
2. Built in Timer sub-class
3. Defining directly inside of my class the StartTime, etc. variables.
All of these still result in the following error:
Cross-thread operation not valid: Control 'User_Interface' accessed from a thread other than the thread it was created on.
Currently, my windows form is being called by another class, but I'm not sure if this is the cause of the problem.
This is a sample of the code that I'm currently using to show the elapsed time:
private void OnTimedEvent (object source, ElapsedEventArgs c)
{
TimeSpan time;
currentTime = DateTime.Now;
[Code].....
I have a Windows form application which has database and will store user details. my problem is while executing program form is not displaying .
View 1 Replies View Related1. Open a browser and navigate to a URL (manually)
I would like to do the following from a windows application:
2. I will click "Fill data" button from Windows screen,
3. We have to identify what are the browsers opened in the PC and which browser has correct URL
4. Once the correct browser is identified with the URL, we have to fill in data (received from scanner) in the html page opened in the browser.
How to achieve above functionality.
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:";
dlg.Title = "Open Image";
[Code].....
I am creating windows application in that i wan create dynamic controls so that i want to give line break after each control in panel.I had tried
panel1.Controls.Add(new LiteralControl("<BR>"));
but it gives error like : "The type or namespace name 'LiteralControl' could not be found (are you missing a using directive or an assembly reference?)" Also have tried adding namespace for leteral control bt it not accepting.VS10 automaticaly get restart if i trying to add system.web.dll
I tried to get the Urdu Fonts from MySql Database using C# in Visual Studio 2010 in Windows Forms Application. When I get the value from table into my variable it shows the characters in ???? symbols. But in PHP i have used the following code:
<?php
class CRUD {
var $con;
//function to make connection to database
[Code].....
Just now I started learning Windows services.I want to create a windows Service that will call the stored procedure every 30 days.
View 1 Replies View Relatedhow to display date reange in crysta report , i have table contains :
id score date name
1 30 2-10-2012 x
2 40 3-10-2013 y
3 40 3-7-2009 z
1 45 5-10-2013 x
1 50 4-10-2009 x
ouput report:
id:1 name :x
2009-10| 2012-2013
50 30
40
I am developing windows application using visual studio 2008 and c#.
I have a GRIDVIEW, but I am not sure how to make a specific column of gridview as hyperlink.
For Example: First column of my grid view is Item ID and if user clicks any of the value in this column a new form should open.
Below is the code of my GIRDVIEW
DataSet ds;
DataSet ds3;
public void FillGridView(int LotID) {
clsPurchase obj = new clsPurchase();
[Code] ....
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"
