Mutexes in Win32
how does a mutex can be shared between processes? does it mean a different .exe process? ...
winapi
Directory file size calculation - how to make it faster?
Using C#, I am finding the total size of a directory. The logic is this way : Get the files inside the folder. Sum up the total size. Find if there are sub directories. Then do a recursive search. I tried one another way to do this too : Using FSO (obj.GetFolder(path).Size). There's not much of difference in time in both these approache...
Multithreaded Win32 GUI message loop
When do you need to use this type of modified message loop in multithreaded application? DWORD nWaitCount; HANDLE hWaitArray[4]; BOOL quit; int exitCode; while (!quit) { MSG msg; int rc; rc = MsgWaitForMultipleObjects(nWaitCount, hWaitArray, FALSE, INFINITE,QS_ALLINPUT); if (rc == WAIT_OBJECT_O + nWaitCount) { whi...
Log4cxx sample program and steps to compile
Hi guys Hoping someone can help out.. I've been scouring the net for a simple how-to to get a good log4cxx program working, with steps on setting up the libraries, dependants, directives, library paths etc etc.. as of yet i've found a lot of valuable but disjointed information.. trying to pull it all together has been a bit of a nightma...
Vista copyfile is copying into VirtualStore folder
Hello I have created one application on Vista, that is running with admin privileges. I am trying to copy one file to ProgramData\Application\ folder. But instead to copying there its copying at location c:\Users\XXX\AppData\Local\VirtualStore\ProgramData\Application\ I dont want this file to get copied into Virtul store. Any suggesti...
How to get the Drive letter and Mount Path - MSDN
Hello all, I get the devices list from the system using SetupDiGetClassDevs Function - MSDN. Also i can able to get the vendor id and product id from the devices. But i cant able to get the drive letter and the mount path For Example if i plug the usb drive means , i have to get the drive letter like "G:/" Please help me to get the ...
How to get only USB devices not all the devices in the system
Grretings to all, I get devices list from the system. but i am not sure that if i want to get only the usb devices currently in the system means , What class i must specify in the below code ( DWORD Flags ) hDevInfo = SetupDiGetClassDevs(&GUID_DEVINTERFACE_USB_DEVICE, 0, // Enumerator ...
Help with WinAPI scroll bars
Right now I have a window with horizontal ad vertical scrollbars. I use these parameters to initialize it. //Set OGL Frame scroll bar SCROLLINFO inf; inf.cbSize = sizeof(SCROLLINFO); inf.fMask = SIF_PAGE | SIF_POS; inf.nPage = 20; inf.nPos = 30; It creates them in the center and I like their size, but when I scroll...
Frame skipping with OpenGL and WinAPI?
Here is my situation. I'm creating a drawing application using OpenGL and WinAPI. My OpenGL frame has scrollbars which renders the screen and modifies GlTranslatef when it gets a scroll message. The problem is wen I get too many shapes the scrollbar is less responsive since it cannot rerender it each and every time it gets a scroll messa...
FASM using custom resource files
How do I include my custom resource files and be able to access them with the windows api? ...
Is it possible to remove the gap between the caption buttons (minimize, restore...) in Windows XP/Vista?
I needed to remove the gap between the buttons while creating a skin using Devexpress skin editor. I couldn't find such an option. Then I thought it can be done by code but I couldn't find an answer, even using the Windows API. ...
Sharing an object between threads
How would you set the object data that is shared between threads and needs to be updated once after the complete cycle of (say) two threads in busy loop? CRITICAL_SECTION critical_section_; int value; //needs to be updated once after the cycle of any number of threads running in busy loop void ThreadsFunction(int i) { while (true) ...
How to quickly acquire and process real time screen output
I am trying to write a program to play a full screen PC game for fun (as an experiment in Computer Vision and Artificial Intelligence). For this experiment I am assuming the game has no underlying API for AI players (nor is the source available) so I intend to process the visual information rendered by the game on the screen. The game ...
How to share a process?
How can I snuggle into another process? Like, share another process's name? So if my application is griddemo.exe, and I want to snug into, let's say, explorer.exe, is that possible? Just read something about CreateRemoteThread() from kernel32. Is that in the right direction? Would there be security/UAC issues? ...
Korean keyboard handling is different on Win 7 Ultimate K then on a regular Win 7
Hi, I have a Win32 application which hosts a windowless flash activeX. When I'm trying to enter Korean keyboard input on a regular Win machine (after adding Korean support), everything works fine. However, when I trying the same thing on a "real" Korean windows (Win 7 Ultimate K), the text comes out strangely. I.e., pressing the "z" but...
Get drive type with SetupDiGetDeviceRegistryProperty
Dear all, I would like to know whether i can get the drive information using the SP_DEVICE_INTERFACE_DETAIL_DATA's DevicePath my device path looks like below "\?\usb#vid_04f2&pid_0111#5&39fe81e&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}" also please tell me in the winapi they say "To determine whether a drive is a USB-type drive, c...
Getting the full-name of the current user, returns an empty string (C#/C++)
I try to get the full-name of the current log-in user (Fullname, not username). The following code C#, C++ works fine but on XP computers not connected to the Net, I get empty string as result if I run it ~20 minutes after login (It runs OK whithin the first ~20 minutes after login) A Win32 API (GetUserNameEx) is used rather that Princi...
What is the difference between NtFsControlFile() and DeviceIoControl() functions?
Are there any places where one is preferable to another? Is there a performance impact to using one over the other? ...
Windows C++: LPCTSTR vs const TCHAR
In my application i'm declaring a string variable near the top of my code to define the name of my window class which I use in my calls to RegisterClassEx, CreateWindowEx etc.. Now, I know that an LPCTSTR is a typedef and will eventually follow down to a TCHAR (well a CHAR or WCHAR depending on whether UNICODE is defined), but I was wond...
Keeping a window always on top -- including menus (win32)
I would like to have a layered window that is always-on-top, which I can accomplish, but there are certain screen elements that still get drawn over it, such as menus (including the start menu). Is there any way to make a window or child window of my application have a high enough top-ness property that it will draw over another applic...