I need some advice to see if my simple Windows socket class is good enough to be used in a simple chat application. #include <iostream> #include <string> #include <Windows.h> class Socket { private: WSADATA wsaData; SOCKET hSocket; sockaddr_in service; std::string addr; USHORT port; int exitCode; bool initializeWSA(); bool initializeSocket(); bool bind(); bool listen(); bool connect(); … Read more
How do you compile assembly code using Visual Studio? I want to compile and run an assembly source file in Visual Studio 2010. I’ve created a Visual C++ project and inserted some assembly code in a file code.asm: .586 ;Target processor. Use instructions for Pentium class machines .MODEL FLAT, C ;Use the flat memory model. Use C … Read more
I have a WPF window which I am creating from another window by calling Show(), then letting it Close() itself. When the window closes, I expect it to die, call its destructor, and delete all its child elements (such as timers..). What is the correct way of invoking such an action? Answer Close() releases all … Read more
I recently installed MinGW on my 64-bit Windows 7 computer and when I attempt to compile the most basic of c++ programs, for example #include<iostream> using namespace std; int main() { cout << “Hello World” << endl; return 0; } I get the error that “The program can’t start because libgmp-10.dll is missing from your … Read more
Why do many people say I/O completion port is a fast and nice model? What are the I/O completion port’s advantages and disadvantages? I want to know some points which make the I/O completion port faster than other approaches. If you can explain it comparing to other models (select, epoll, traditional multithread/multiprocess), it would be … Read more
Is it because the operating system is written in the C programming language? I think that the A and B languages were not so successful? I am thirteen and trying to do computer programming in C#. Answer Wikipedia gives a good explanation about the logic of drive lettering: Except for CP/M and early versions of … Read more
The easiest way to do this is to create a batch file with: NET stop <service name> NET start <service name> Once the batch file is created and tested, add it to Windows Task Scheduler and run it at a specific time interval. Problem here is, when the bat file is missing or corrupt, the … Read more
I create a global hot key to show a window by PInvoking RegisterHotKey(). But to do this I need that window’s HWND, which doesn’t exist until the window is loaded, that means shown for the first time. But I don’t want to show the window before I can set the hot key. Is there a … Read more
How do you determine 32 or 64 bit architecture of Windows using Java? Answer I don’t exactly trust reading the os.arch system variable. While it works if a user is running a 64bit JVM on a 64bit system. It doesn’t work if the user is running a 32bit JVM on a 64 bit system. The … Read more
Here is what I want, inside the BACKUPDIR, I want to execute cscript /nologo c:\deletefile.vbs %BACKUPDIR% until number of files inside the folder is greater than 21(countfiles holds it). Here is my code: @echo off SET BACKUPDIR=C:\test for /f %%x in (‘dir %BACKUPDIR% /b ^| find /v /c “::”‘) do set countfiles=%%x for %countfiles% GTR … Read more
