CPU cache always interrupts what we test a performance of some codes. gettime(); func1(); gettime(); gettime(); func2(); gettime(); // func2 is faster because of the cache.(or page faults of func1()) // But we often misunderstand. When you measure your code performance, how do you remove the cache's influence. I'm finding some funct...
How can i slow down a windows process ? I understand that i need to hook queryperformancecounter but what do i need to do next ? Plase help ...
I have a Swing application which consists of a single JFrame set to Always On Top. When running under Windows, I use the following code to open the the native default email client and browser respectively: Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + Utils.formatMailtoUrl(to, subject, body)); Runtime.getRuntime()...
I cant see any way to get around this... ...
I want to set something up on my computer where if something (program, browser, whatever) makes a request (to a certain domain, I guess) I can send my own response to the request. I once saw a program that did that, and I was wondering how it did it. How would it be done? ...
Well, for my program(s) I'd like to let the user send me an e-mail with any errors. Instead of relying on a forsaken SMTP server, I decided to let the user use his very own e-mail client to send an e-mail to a specified address. So what I need is: A sender (should not be changeable) (example: [email protected]) An attached file...
I have a C++ windows service that sometimes crashes when I call the system() function to shell out a command. I've run the exact text of the command in the windows command-line, and it runs just fine, but for some reason it fails when system() is run. To make matters worse, I can't seem to get any information as to why system() is faili...
Hi I created and exe file in which I added 32, 48, 64 and 128 pixels icons. When I put the exe on my desktop or navigate to the folder where the exe is stored, Windows Explorer shows only the 32 and 48 pixels icons. If I set my desktop to show 'Large icons' it still shows the 48 pix icon. Why? Windows 7 32 bit, RBG+Alpha icons, EXE...
Hello I am in a very embarrassing situation, I was trying to upgrade to ubuntu 10.04 from ubuntu 9.10 yesterday and while updating I forgot to put my laptop on charger and the battery ran out. Since we know that there is no track back process in linux, all I get now is a blank terminal screen at the start up. Even if I login, I still am ...
I made a program on mac osx using opengl and dynamically linking libpng. Im now trying to port it to windows. Whenever I try to compile and link my ported program in borland it gives me this error and about 10 more that are the same but with a different '_png_create_read_struct' Error: Unresolved external '_png_create_read_struct' re...
Hi guys, I have written a simple program that pings three sites and then reacts to whether they are reachable or not. My question is: can I suppress system("ping ")'s output? I have written my code in C++ as I know that language the best. Currently the code opens the ping.exe running the system command. If I can prevent the output from...
Hi, I need in to popup thr "Run As" form when user tries to run my application (C#.NET 4, on Win XP), that he could easily to log as other user. It may be in the application itself (in the C# code) or in some other preceeding batch/exe file ("launcher") or such. I didn't find any way to pop this form. How could it be done? thanks. ...
Hi, I have a test app that is linked with some DLLs (or .so's). In my main app I defined a global new/delete like this: void* operator new(size_t n) { .... } void operator delete(void* p) { ... } But I noticed the operators are only called for things I allocate in my main app, but not if one of the DLLs does. How do I make ...
I'm running a test script from batch file. Because it is test, the programs are expected to fail once in a while. It is file as long as error code is returned so I can continue and mark specific test as failed. However there is very annoying behavior of executable files under Microsoft Windows - if something fails it pop-ups window lik...
I want to create an on-screen display, i.e. text or simple graphics that appear on top of everything else being displayed. I know in Linux this is achieved with xosd, but how do you do it in Windows? (Assume XP and up if it makes it easier, and I would also be interested in knowing if the method is different in Vista/7) ...
I'm looking for free and easy GUI framework that let me create single exe without dependency (like .Net framework) and to be not GPL as a side note .. im using Qt and its great but i have to be LGPL to use it that means lots of fat dlls . is there any alternative? p.s how did the Dropbox client made of? i know its python but how did...
I can't help it; I know many people will disagree, but I would really like to avoid Visual Studio as much as possible. My ideal combination would be gcc + Netbeans. I already use those to code in Linux. But my issue is compatibility. For example, there is a library that I want to use that is supposed to work for .NET and Java. Does this...
while(GetExitCodeProcess(processInfo.hProcess, &exitCode) && exitCode == STILL_ACTIVE) { ReadFile(defaultSTDIN, chBuf, 1, &dwRead, 0); WriteFile(writingEnd, chBuf, 1, &dwWritten, 0); } The problem with the code above is that even when the child process referenced through processInfo.hProcess has exited, we are still stu...
After registering the application key with the registry, I'm programmatically creating the .ini and associated header file for LoadPerfCounterTextStrings (both utf-8 encoded). The call fails with the error "The specified driver is invalid". lodctr /r doesn't resolve this. Anyone seen this, know what to do, how I might debug etc? I'm at...
Hi, I'm not sure if it is actually possibe in C#, but I was wondering if there was a way to check everytime the user logs into the computer, and if the password was incorrect, call a function within the program. I'm not sure how tight the security is on things like this, so any help would be appreciated. ...