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Hello.
I am working on a sort of "PC monitor/assistant" application program (.NET on Windows XP) which detects visible changes in the appearance of windows associated with desktop applications. I have tried taking a snapshot of the desktop when my program starts, then periodically taking snapshots and comparing them with the previous snapshot via pixel-by-pixel comparison.
That method will miss important events and is computationally very expensive.
Perhaps a better way would be to detect invalidate, refresh, paint, etc. event messages being sent to the other application programs, but after having looked at Microsoft docs and Win32 API calls haven't found a way to do it.
If the second method is a good way to get the job done, how do I do that? I conjecture that "virtual desktop" apps do it, or something similar.
If that's not how it's done, how is it done?
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Some time back, I was developing a similar application and had faced similar problem. Then, I had put up a similar question in CodeProject but under C# section.
Then I had recieved a reply saying that a development kit called MS-DDK (Miscrosoft Device Development Kit) provided the solution for this problem. Unfortunately due to lack of time, I had to live up with the computationally intensive method of doing this.
You can refer this DDK to accopmlish your objectives. I am just providing you a direction. I dont have any details regarding this since I have not worked in this.
Cheers,
Nagu
It does not matter WHAT you Say.
It does not matter WHEN you Say.
The only thing that matters is HOW you Say.
Cheers,
Nagu
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Win XP Pro - Mesh Computers AMD64
Gets into a reboot loop after install. Tried selecting one of the safe modes from the menu it offers. Initially I could get to a list of system restore points. Tried a couple but no joy. Also tried running spuninst.exe from the command line to get into the sp2 removal wizard. That hangs on the first step - checking configuration (unless this is supposed to take ages).
Tried F8 to get into safe mode the usual way to try and get to the recovery console. I get an error: "Setup did not find any hard disk drives installed in your computer."
Tried getting into safe mode last Sunday night via an initial menu item. Succeeded eventually (you just get a black screen for a while). Tried various options as per MS KB 875350. All failed.
Then got a registry fix from Mesh for AMD64 chips.
Can now restart but was slow to get to login screen. But now I just get a blank screen with my default wallpaper. Ctrl+Alt+Del works to get task manager.
I work away from home during the week so won't be able to tinker again until tomorrow evening. Any suggestions welcome.
Kevin
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Can you post the specification of your computer (RAM, HDD, CPU, size of partition...) on this forum??? Try to use the command Last known good configuration in order to restore the previous setting for your computer.
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Things have moved on now. Did a rebuild from scratch with integrated XP SP2. Not much else installed yet other than Broadband software.
Basically, all uninstall, options failed.
Kevin
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I need to close the system from my application, but before I wanted to send a message to the other processes so that they close.
With shutdown no problem, but I don't know as sending the message to the processes.
I proved with PostMessage(HWND_BROADCAST, WM_QUERYENDSESSION, 0, 0), but it didn't work.
Would somebody be able to help me ?
Thank in advance.
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There's no need to do this. ExitWindowsEx will close any other applications running.
Stability. What an interesting concept. -- Chris Maunder
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Hi Mike & Faroqtam,
I need to give to all the other applications an opportunity so that they close about 20 seconds previous to the shutdown.
My problem is as notifying to the other applications.
Thank you for your answers.
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Hi
u can close the system abnormaly by closing the Winlogon process .
when this process close the system will be halted and the system restarted.
On Earth nothing impossible,
while your mind running.
Faroqtam
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Hi guys,
I would like to know how one can write his own boot-loader(for HDD)
so that when system boot:
(1) It will first search my exe in C:\
(2) Load it to some location
(3) CPU will execute it
(4) Then again it will proceed normally ;like giving user OS menu option etc
Please help me
Thanx in advance
Tom
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My answer is similar to here.[^]
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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On my IE 6 Windows XP PC when even I click on a PDF link all I get is a little red box.
Are they a setting I need to make to download and open this pdf file.
Thanks,
grahamfff
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Right click on the hyperlink then click on the command Save target as... from the context menu.
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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I need to execute a little utility on startup (which would not be a problem, as I could easily put a shortcut in tha startup-item folder) and on shutdown or logout. also I want the app to be executed once per day if the computer is not shut down. how do I do this?
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swissglide wrote:
I need to execute a little utility on startup (which would not be a problem, as I could easily put a shortcut in tha startup-item folder) and on shutdown or logout
In order to run the program during that you start, it could do in many possible way. But I recommend you to use task schedule[^], in order to set the time to run during the computer start or schedule the task to run at the specific time.
And in order to run the task during the computer is shutting down, try to assign the shutdown script[^] for your computer.
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Hi
I'm looking for a programmed way to sample / measure the
resource consumption (Memory,CPU,I/O etc...) of a running Windows process.
This should act much like the simple UNIX call to getrusage() applied on
the current calling process.
Any ideas, suggestions...?
"C" based code sample would be mostly welcomed.
Thanx
Hillel.
Hillel
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Hello,
I am trying to make a small OS as a hobby. But I am not sure how can I code / use (and which one) a bootloader that transfers control over to my kernel. Can anyone guide me / suggest a simple bootloader with an example of kernel control handover ?
Thanks
Ashish
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also, check out grub and lilo, the linux bootloaders. since they're open source, you can look at their code, and probably get advice from their authors too.
--
Raoul Snyman
Saturn Laboratories
e-mail: raoul.snyman@saturnlaboratories.co.za
web: http://www.saturnlaboratories.co.za/
blog: http://blog.saturnlaboratories.co.za/
linux user: #333298
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Hi,
You are confusing between boot-loader & OS.
(1) Bootloader is the initial stage program which will ultimately load final OS. It is of fixed size(512 bytes). But if your boot-loader goes beyond this size you can cut this in pieces leaving the intent of bootloader intact. Boot -loader is basically written in assembly(8086 or higher).
(2) Os is....you know what it is.
So once you power ON your system; it will perform normal BIOS routines & then cheks for boot sequence. According to boot sequence it will verify first sector (512 bytes)for validity & if it is valid it will load that sector in RAM. And later pass control to it. Here starts the job of boot-loader which should take care of loading all imp files reqd for loading OS ultimately.
if you have more doubts feel free to contact me.
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Hello,
I'm writing for a misterious event happening at our company's windows 2003 sbs server, it keeps shutting down by itself on approximately every 1h and 40mins a kind of force shut down with no reason which seriously troubles most of our client server specialized software hosted on the server,
from the Event viewer I get this message
Event ID: 513 (0x0201)
Type: Success Audit
Description: Windows NT is shutting down.
All logon sessions will be terminated by this shutdown.
My question is, what is causing this forced shut down of the server, and how to avoid it 
Thanks for your time and attention, any advice on fixing the problem is appreciated!
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I never use windows server 2003 but I have some experience in windows 2000. Try to check:
1. Try to check the Task schedule, there any task that assign to shutdown the computer after log on to windows.
2. Check the logon script, did you specifies the logon script to manage the computer to be shutdown after log on.
3. Try to use any virus tool to scan for the virus. Because in windows 2000 or windows xp pro, when it attack by virus blaster it will shutdown the computer and restart in every one minute. To avoid this you need to search for the specific cleaning tool (I use norton fix tool at that time) to clean the virus. Or you can check the windows registry, for the start application, to see which service or application that you might identify as the virus.
4. Check the status of the service, and try to identify the function of each service. There is might be a service that cause the problem to your server and try to stop it.
Good luck!!!
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Hi, I just install windows 98 for the PC at my home. After I install it, i notes that the command "Install new fonts" from the font director of windows is not appear on the File menu. Normally in windows 98 when we browse to the font folder, the content of the folder have to change in order to make it suitable with font task (such as install font, sort...). But when I browse to the the font folder, it display as the normal folder. Does anyone know how to solve the problem???
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Sometimes the DESKTOP.INI file which controls how the fonts folder behaves can get deleted or become corrupted. TweakUI[^] can fix this problem - go to the Repair tab.
If this has happened I suggest checking the hard disk is OK. Windows 98 doesn't have a transactional filesystem, so power failures can sometimes cause disk corruption.
Stability. What an interesting concept. -- Chris Maunder
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