C / C++ / MFC

3-Feb-06 2:52

Hi, I made an uninstaller, and I need to delete the uninstaller exe, and the folder where it is.

So I used

MoveFileEx((m_installDir + "UAdmPass.exe"),NULL, MOVEFILE_DELAY_UNTIL_REBOOT);

MoveFileEx, is returning OK but, I rebbot the machine and the file still there...

Any suggestions?

Thanks Big Grin | :-D

Russell^'3-Feb-06 3:25

Russell^'

3-Feb-06 3:25

Are you the administrator?

Have a nice code day Wink | ;)

Kharfax3-Feb-06 3:35

3-Feb-06 3:35

Yeap.
My application needs special permisions to delete a file?
Like when you want to force a shutdown?

Russell^'3-Feb-06 4:04

Russell^'

3-Feb-06 4:04

I'm not sure but I think yes. But I need to check.
try with *.bat file as tell David, I think it is better.
Bye

Have a nice code day Wink | ;)

David Crow3-Feb-06 3:36

David Crow

3-Feb-06 3:36

A .bat file is going to be your best bet if you need this on all platforms. There are other solutions, but they are either limited to Windows 9x, or Windows NT, but not both. See here for more.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Michael Dunn3-Feb-06 12:59

Michael Dunn

3-Feb-06 12:59

Check the filename - is there a backslash on the end of m_installDir?

BTW you can verify this before rebooting by looking in the reg key HKLM\SYSTEM\CurrentControlSet\Control\Session Manager, value PendingFileRenameOperations

--Mike--
Visual C++ MVP Cool | :cool:

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Kharfax6-Feb-06 2:39

6-Feb-06 2:39

Thanks to all for the advise, but I need to be Win ME compatible, so I'll use a .bat file Big Grin | :-D

How to Name my threads in the Task Manager?

Michael Dunn7-Feb-06 6:37

Michael Dunn

7-Feb-06 6:37

You can't use MoveFileEx() on 9x, you have to write a \windows\wininit.ini file that lists the files to delete. I know I've seen an article in MSDN that has code to do that for you.

--Mike--
Visual C++ MVP Cool | :cool:

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_B-A-P_3-Feb-06 2:46

_B-A-P_

3-Feb-06 2:46

I want to see in the TaskInfo2003 somthing more informative, than "thread", when i CreateThread().
And when i create in ms vs2002 mfc application, it`s name represented like "TODO: <file description="">"

Re: How to Name my threads in the Task Manager?

Gary R. Wheeler4-Feb-06 9:14

Gary R. Wheeler

4-Feb-06 9:14

I use the following function to set the name of each thread. Call it at the beginning of your thread function:

void SetThreadName(LPCSTR name)
{
  // Reference: MSDN article "Setting a Thread Name (Unmanaged)"
  //            (search for "SetThreadName")
  struct {
    DWORD    dwType;        // = 0x1000
    LPCSTR   szName;        // thread name
    DWORD    dwThreadID;    // thread ID (-1 for caller)
    DWORD    dwFlags;       // reserved (must be zero)
  } thread_name_info;
  thread_name_info.dwType     = 0x1000;
  thread_name_info.szName     = name;
  thread_name_info.dwThreadID = (DWORD)-1;
  thread_name_info.dwFlags    = 0;
  __try {
    RaiseException(0x406D1388,0,
                   (sizeof(thread_name_info)/sizeof(DWORD)),
                   (const ULONG_PTR *)&thread_name_info);
  }
  __except (EXCEPTION_CONTINUE_EXECUTION) {
  }
}

Note that this works with the Visual Studio debugger. I don't know if it will work with your application ("TaskInfo2003").

Software Zen: delete this;

Fold With Us![^]

Re: How to Name my threads in the Task Manager?

_B-A-P_5-Feb-06 20:16

_B-A-P_

5-Feb-06 20:16

Thank you, but it`s really works ONLY with the Visual Studio debugger, not with the process managers Cry | :((

Savin a bitmap, but

Ivan Cachicatari3-Feb-06 2:39

Ivan Cachicatari

3-Feb-06 2:39

Hi,

I want to save a bitmap in a file. My funcion is the following code, but this save the a inverted bitmap.

BOOL CDXCaptureDlg::SaveBMP(BYTE *Buffer, int width, int height, long paddedsize, char *bmpfile)<br />
{<br />
// declare bmp structures<br />
BITMAPFILEHEADER bmfh;<br />
BITMAPINFOHEADER info;<br />
<br />
// andinitialize them to zero<br />
memset ( &bmfh, 0, sizeof (BITMAPFILEHEADER ) );<br />
memset ( &info, 0, sizeof (BITMAPINFOHEADER ) );<br />
<br />
// fill the fileheader with data<br />
bmfh.bfType = 0x4d42; // 0x4d42 = 'BM'<br />
bmfh.bfReserved1 = 0;<br />
bmfh.bfReserved2 = 0;<br />
bmfh.bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + paddedsize;<br />
bmfh.bfOffBits = 0x36; // number of bytes to start of bitmap bits<br />
<br />
// fill the infoheader<br />
<br />
info.biSize = sizeof(BITMAPINFOHEADER);<br />
info.biWidth = width;<br />
info.biHeight = height;<br />
info.biPlanes = 1; // we only have one bitplane<br />
info.biBitCount = 24; // RGB mode is 24 bits<br />
info.biCompression = BI_RGB;<br />
info.biSizeImage = 0; // can be 0 for 24 bit images<br />
info.biXPelsPerMeter = 0x0ec4; // paint and PSP use this values<br />
info.biYPelsPerMeter = 0x0ec4;<br />
info.biClrUsed = 0; // we are in RGB mode and have no palette<br />
info.biClrImportant = 0; // all colors are important<br />
<br />
<br />
// now we open the file to write to<br />
HANDLE file = CreateFile ( bmpfile , GENERIC_WRITE, FILE_SHARE_READ,<br />
NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );<br />
<br />
if ( file == NULL )<br />
{<br />
CloseHandle ( file );<br />
return FALSE;<br />
}<br />
<br />
// write file header<br />
unsigned long bwritten;<br />
if ( WriteFile ( file, &bmfh, sizeof ( BITMAPFILEHEADER ), &bwritten, NULL ) == FALSE )<br />
{<br />
CloseHandle ( file );<br />
return FALSE;<br />
}<br />
<br />
// write infoheader<br />
if ( WriteFile ( file, &info, sizeof ( BITMAPINFOHEADER ), &bwritten, NULL ) == FALSE )<br />
{<br />
CloseHandle ( file );<br />
return FALSE;<br />
}<br />
<br />
// write image data<br />
if ( WriteFile ( file, Buffer, paddedsize, &bwritten, NULL ) == FALSE )<br />
{<br />
CloseHandle ( file );<br />
return FALSE;<br />
}<br />
<br />
// and close file<br />
CloseHandle ( file );<br />
<br />
return TRUE;<br />
}<br />

Ivan Cachicatari Blog[^]
www.latindevelopers.com

Re: Savin a bitmap, but

Russell^'3-Feb-06 2:43

Russell^'

3-Feb-06 2:43

Ivan Cachicatari wrote:
inverted bitmap

It means color inversion, image transposition (like matrix) or other ?

Have a nice code day Wink | ;)

Re: Savin a bitmap, but

benjymous3-Feb-06 4:30

benjymous

3-Feb-06 4:30

Do you mean it's upside-down?

That's the way the BMP format works, the first row in the data is the bottom line, and so on up to the top.

--
Help me! I'm turning into a grapefruit!
Buzzwords!

Re: Savin a bitmap, but

normanS5-Feb-06 19:41

normanS

5-Feb-06 19:41

Windows understands normal (upside down) bitmaps as well as "right-way-up" bitmaps - check the MSDN documentation on bitmap headers. As far as I remember, "right-way-up" bitmaps have negative height, so in your posted code, try changing:

info.biHeight = height;

info.biHeight = -height;

I use this technique with a StretchDIBits call, and it works there.

Since you are not processing the bitmap data at all, whether this technique works will depend on the application you use to display the bitmap. A "well-behaved" application (conforming to MSDN bitmap standards) will display correctly. A "badly behaved" application will display the bitmap upside down or crash.

Some applications may accept it, some may not! But it's easy to try.

DLL with shared memory

Shivaji Patil3-Feb-06 2:18

Shivaji Patil

3-Feb-06 2:18

Hello every one,
Please let me explain my problem neatly.
I am using DLL (without MFC/ATL/WTL)with shared memory and I declared shared memory using

#pragma data_seg(".shared")

directive.
As I am using DLL only for system wide hook, only my application uses it. But my applicaton can be terminated and restatred again (by user). I observed using taskmanager and debugger with step executation when my program calls SetWindowsHookEx(), 8KB memory get used by my application(process). But while termination this 8KB memory doesn't get released. This makes me two problem.

1) If I want to update/change my DLL file by terminating application Windows doesn't allow it. (As my development is going on,I have to do it). Only way to wait for some time or Log off/restart. Frown | :(

2) If my application get restarted 15 times a day, shall application aquire 120KB memory? Confused | :confused:

How I can release this shared memory? Or reuse last unreleased next time.
How to solve this problem?

First deserve then desire. Let be deserved first.

Kharfax3-Feb-06 3:15

3-Feb-06 3:15

When your aplication is closed, YOU MUST UNHOOK THE SYSTEM HOOK ALWAYS!

A system hook takes a lot of system resources, and is to long to explain here why, so unhook it using UnhookWindowsHookEx

Also, in you aplication create a button to hook/unhook your hook, that way you would be able to change the hook dll witout restarting.

Also, you must use a semaphore to check that only one instance of your aplication is running.

System hook's are a bit complicated at the beginning, I suggest you to check the theory in a lot of good articles in here.

Doing this, you shouldn't have more memory or performance leaks.

Good luck

Shivaji Patil3-Feb-06 20:24

Shivaji Patil

3-Feb-06 20:24

Thanks for your reply.
Unfortunately it is not useful as I am using UnhookWindowsHookEx already while exiting.
Time of unreleasing DLL from memory get extended if I rerun application after terminating first instance.
Can you mention any links regarding using semaphore.

Thanks a lot. Smile | :)

Shivaji Patil

First deserve then desire. Let be deserve first.

Kharfax6-Feb-06 2:38

6-Feb-06 2:38

Quoted:
" If I want to update/change my DLL file by terminating application Windows doesn't allow it. (As my development is going on,I have to do it). Only way to wait for some time or Log off/restart."

Your Unhook process isn't working fine, your hook DLL is still running when you close your application, that's why you never free those 8K.

Try closing all the hooked applications, after your unhook and check if the memory is back.

ABout the semaphore...

// Just one instance

hMutexOneInstance = CreateMutex(NULL, TRUE, "Your program ID");

if (GetLastError() == ERROR_ALREADY_EXISTS)
OnCancel();

if (hMutexOneInstance)
CloseHandle(hMutexOneInstance);

Paste that on your oninitdialog, and that's all.

"Your program ID" is any string you want to use.

Good luck