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SHGetSpecialFolderPath not working......
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GetSystemDirectory
sometimes it's soooo easy.
modified 12-Sep-18 21:01pm.
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CSDIL_SYSTEM does not exist.
i have checked the other option, none gives the systen folder
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Anonymous wrote:
CSDIL_SYSTEM does not exist.
i have checked the other option, none gives the systen folder
CSIDL_SYSTEM is the correct value. It is defined in shlobj.h
You might also try GetSystemDirectory but I'm not sure if that returns System or System32.
Michael
CP Blog [^]
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It's CSIDL_SYSTEM, and it does exist with the current platform SDK.
If you're running VC6 "out of the box", you might have to use GetSystemDirectory()
we are here to help each other get through this thing, whatever it is Vonnegut jr.
sighist || Agile Programming | doxygen
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#include <strstrea.h>
char szDir[128];
ostrstream strmDir(szDir, sizeof(szDir));
strmDir << getenv("SystemRoot");
strmDir << "\\System32" << ends;
You can string the insertions out in one line. I broke them up into seperate lines because of the horixzontal linitation of this window.
The size of 128 is arbitrary. You could use "MAX_PATH" or "_MAX_PATH" depending on other includes in your program
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Anonymous wrote:
strmDir << getenv("SystemRoot");
Not only does this rely upon environment variables, which I consider a bad practice, it does not include "System" or "System32" in the returned value.
"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen
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GetSystemDirectory[^]?
"It was when I found out I could make mistakes that I knew I was on to something."
-Ornette Coleman
"Philosophy is a study that lets us be unhappy more intelligently."
-Anon.
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The include in the previous response should have been strstrea.h
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Hi,
I have a MSHFlexgrid with a list of names. when you press eg. 's' the first name that starts with an 's' is highlighted and the list scrolls down. If I then press 'a' however, the name is highlighted, but the view doesn't scroll up.
I've tried about every function with "scroll" in it(  ) and even refreshing and 'scrolling' down from the start, but nope...
anybody got some clue on how to solve this?
(in meantime I do keep searching  )
"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix
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I'm looking for a generic/convenient solution to the following common pattern:
X * GetX()
{
static X * x = NULL;
if (x == NULL)
x = CreateX();
return x;
}
I know hot to make it threadsafe, etc, but would love to find something "well tested", threadsafe, and convenient.
Any links?
we are here to help each other get through this thing, whatever it is Vonnegut jr.
sighist || Agile Programming | doxygen
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You could use a static CCriticalSection which you Lock() and Unlock() within the X::GetX() method. That should ensure the singleton nature of your code.
/ravi
My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com
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yes, I'm using that -
however, with all the gotchas (e.g. this pattern is said to be unsafe with agressive optimizers on multiprocessor boxes, "so turn optimizations off") this is a fairly "dangerous" piece of code, and I was wondering if there was a "proven correct" generic function that does that for any type T and different Initializers.
we are here to help each other get through this thing, whatever it is Vonnegut jr.
sighist || Agile Programming | doxygen
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Dare I suspect suggest doing something as primitive as locking a memory mapped file for exclusive access? Would that work across processor boundaries? Just a thought!
/ravi
My new year's resolution: 2048 x 1536
Home | Articles | Freeware | Music
ravib@ravib.com
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I have an application which is developed in VC++ 6 under a Windows 2000 machine. This application opens an Access database (it works with a class which is derived from CDaoRecordset).
I want to run this app under a windows 98 system which has installed just the Ms Office 2000.
I made a setup with InstallShield for Microsoft Visual C++ 6 and I include in the setup the ADO DB drivers.
I have to say that I convert the database that I want to open to a previous version (Ms Access 97).
During the opening of the database (under windows 98) I get an error saying "Abnormal program termination".
Can anyone please help me with this issue?
Thanks in advance
dimitris
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I think the only solution is to debug your application under Windows 98. The fact is that Windows 98 is less permissive for some bad operations, or some bugs. For example, I will tell you my experience with a problem I had.
I developed an application that uses ADO to connect to a SQL Server database. I had a CWinApp member variable called m_Database which was initialized in InitInstance method.
In order to use ADO, I had to use CoInitialize(NULL) in InitInstance and CoUninitialize in ExitInstance. Note that the m_Database destructor was responsible to close and release ADO objects.
All works perfectly under Windows 2000 and XP, but in Windows 98 application crashed at exit.
The cause of the problem: CDatabase destructor was called at the end of ExitInstance, of course, after CoUninitialize. Since COM was uninitialized when I tried to release COM interfaces, application crashed, but only in Windows 98. In Windows 2000 and XP, application exited the normal way.
The solution: declare the member as * m_pDatabase, and delete it before CoUninitialize.
I could realized of that only by debugging it in Windows 98.
This wasn't the only problem I had when running the application in that platform.
Jaime
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Does anyone know where I can find the bit structure of a 16bit signed short?
Joel Holdsworth
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platform dependent, but on "everything useful I know" it's 2's complement:
0..0x7FFF are nonegative values 0..32767
0xFFFF..0x8000 are negative values -1 .. -32768
(incrementing 0x7FFF == 32767 rolls over to 0x8000 == -32768)
data is stored either least significant byte FIRST or LAST.
Intel x86/pentium platforms use LSB first, so a 0x7FFF is actually stored as
[0xFF] [0x7F] in memory.
BIT position is a "mu" question in C/C++ and even assembler (i.e. it typically doesn't make sense to discuss if the most or least significant bit is stored first, unless you want to re-wire your motherboard)
Hmm... anythign I forgot?
we are here to help each other get through this thing, whatever it is Vonnegut jr.
sighist || Agile Programming | doxygen
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Thanks; that's very useful!
Joel Holdsworth
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I have to disagree with that last statement. It is very important to remember bit position whenever you are moving data between systems or to hardware.
As soon as you transfer data you have to prepare to deal with (or make an informed decision not to!) with other byte orders. The Mac uses a different byte order from intel machines, so if you don't deal with it your numbers will be wrong.
Also hardware needs this consideration. If you talk directly to hardware you need to make sure you are using the byte order of that device, which is sometimes different from the machine you are on.
The latter is somewhat a special case, but the former is a big deal. You never know when the boss will tell you that a port to the mac must be done. (or sun or cray or mainframe) and bring these issues forward. Just be aware that it is a problem now, and try to isolate all the areas where data might leave this computer. (either network or by disk)
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I mentrioned that the Byte order is important - what doesn't exist (unless you start to transfer data over a serial protocol) is a BIT order inside the byte (maybe the last three words were missing)
The thought of my discussion was that there are C++ operations that can tell you about the byte oder, but a "bit order" isn't noticable even on the assemblers I know (where bits are always indexed by significance, not posiiton)
we are here to help each other get through this thing, whatever it is Vonnegut jr.
sighist || Agile Programming | doxygen
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Hi all,
I am using IE6.0 and its crashing many times, When i debug iexplore.exe it using MSVS.
I am getting assembly code as below
77F82D5D je 77F82D70
77F82D5F or ecx,0FFFFFFFFh
77F82D62 xor eax,eax
77F82D64 repne scas byte ptr [edi] <- cursor is at this point
77F82D66 not ecx
77F82D68 mov word ptr [edx+2],cx
77F82D6C dec ecx
77F82D6D mov word ptr [edx],cx
77F82D70 pop edi
and the stack window shows
NTDLL! 77f82d64()
// other stuff.
Can someone help me in tracing the problem. and how to extract information from this
Thanks in advance
Abhishake
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Up the stack,Who is calling NTDLL ?
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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Thanks Papa,
Since i am not sure what i going wrong here is all the information
NTDLL
**********
77F82D5F or ecx,0FFFFFFFFh
77F82D62 xor eax,eax
77F82D64 repne scas byte ptr [edi] <- cursor is at this point
77F82D66 not ecx
77F82D68 mov word ptr [edx+2],cx
77F82D6C dec ecx
KERNEL32! 77ea069f()
**********
77EA0693 ret 4
77EA0696 push dword ptr [esp+4]
77EA069A call 77E86F4C
77EA069F test eax,eax <- cursor is at this point
77EA06A1 je 77EA06AB
F3HTMLMU! 020c99e3()
**********
020C99DE call 020C9A48
020C99E3 lea ecx,[ebp-74h]
020C99E6 call 020CBDDC
020C99EB lea ecx,[ebp-18h] <- cursor is at this point
020C99EE mov dword ptr [ebp-18h],esi
F3HTMLMU! 020c97c7()
**********
020C97C2 call 020C9882
020C97C7 test al,al <- cursor is at this point
020C97C9 je 020C97CE
020C97CB push 1
020C97CD pop esi
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F3HTMLMU is causing u all the grief and trouble.
This is related to the mwsbar BHO.
In other terms its a toolbar that you have in IE explorer that is crashing it.
You can uncheck it from the toolbars or unregister the BHO, or remove it from the registry
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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