Re: Check if exe exist at given location - C / C++ / MFC Discussion Boards

__yash__4-Oct-07 0:24

4-Oct-07 0:24

hi I need to call the following function somewhere in a program:
void __fastcall TFormMain::btnUpdateClick(TObject *Sender)
{.....}
This is the event of mouse-click on a button.
How can i call this function in the program itself (which otherwise gets called on 'mouse-click'??

Re: Help needed in Borland C++ Builder

_AnsHUMAN_ 4-Oct-07 0:41

_AnsHUMAN_

4-Oct-07 0:41

Try sending a WM_COMMAND message to the button
ex:SendMessage(WM_COMMAND,/*ID_OF_BUTTON*/);

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Help needed in Borland C++ Builder

James R. Twine4-Oct-07 1:30

James R. Twine

4-Oct-07 1:30

By calling it directly. I do not know how the function is implemented, so I do not know if it can handle a NULL Sender parameter or not - e.g.:

     btnUpdateClick( NULL );

If you have to call it outside of the TFormMain class, you need a way to expose it from that class.

Peace!

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

Re: Help needed in Borland C++ Builder (answer)

Programm3r4-Oct-07 3:57

Programm3r

4-Oct-07 3:57

Hi,

You can di it like this:

void __fastcall TForm1::BitBtn2Click(TObject *Sender)
{
  // what ever code come here
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
	BitBtn2Click(Sender);
}

Makes sense ....
How that this help Smile | :)

Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Need Book

Tarek Jabri3-Oct-07 23:31

Tarek Jabri

3-Oct-07 23:31

Hi
can anyone help me finding a book about developing "com add-in" for office applications using mfc ?

thanks alot

Tarek

Re: Need Book

Programm3r4-Oct-07 2:58

Programm3r

4-Oct-07 2:58

See Here ....[^]

Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Check if exe exist at given location

josip cagalj3-Oct-07 23:30

josip cagalj

3-Oct-07 23:30

Hi,I have a path (like "c:\path\programname.exe")
How can I determine if program 'programname.exe' exist in 'c:\path' directory?
I tried with 'FindFirstFile' and checking 'WIN32_FIND_DATA' structure, but for what 'dwFileAttributes'?
Thanks!

Re: Check if exe exist at given location

Garth J Lancaster3-Oct-07 23:52

Garth J Lancaster

3-Oct-07 23:52

there's a quicker way - something like :-

bool bFExists(LPCTSTR szText) {
struct _stat buf;
return (_stat(szText, &buf) == 0);
}

should be quicker if you dont need to iterate through the files .. you'll need an include for <sys/stat.h>

hth, 'g'

Re: Check if exe exist at given location

Roger Broomfield4-Oct-07 0:06

Roger Broomfield

4-Oct-07 0:06

<br />
WIN32_FIND_DATA wfd;<br />
HANDLE hf = FindFirstFile("c:\path\programname.exe",&wfd);<br />
if (hf != INVALID_HANDLE_VALUE) {<br />
 FindClose(hf);<br />
 return TRUE;<br />
}<br />
else<br />
 return FALSE;<br />

but personally I just use

<br />
return (GetFileAttributes("c:\path\programname.exe") != -1);<br />

NB: in reference to the answer above the MSVC runtime function _stat() does a GetFileAttributes and a bunch of other stuff

Re: Check if exe exist at given location

Naveen4-Oct-07 0:10

Naveen

4-Oct-07 0:10

use PathFileExists() API.

nave

[OpenedFileFinder]

Re: Check if exe exist at given location

Waldermort4-Oct-07 0:11

Waldermort

4-Oct-07 0:11

The simplest way to check if a file is exists is to open it with a call to CreateFile()

Waldermort

THANKS

josip cagalj4-Oct-07 0:15

josip cagalj

4-Oct-07 0:15

Thanks to all!

Re: Check if exe exist at given location

David Crow4-Oct-07 3:27

David Crow

4-Oct-07 3:27

There's also _access(), which is just a wrapper around GetFileAttributes().

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Debug Assertion Failed - Error message

rajaratk3-Oct-07 23:05

rajaratk

3-Oct-07 23:05

Hello,

When I am debugging the source code,I got "Debug Assertion Failed" as a heading and the text which shown in big letters.

When I see the output i got the following messages.

=========================================================================================

Warning: data source is readonly.
DBMS: EXCEL
Version: 08.00.0000
ODBC Driver Manager Version: 03.52.0000
'omc.exe': Loaded 'C:\WINDOWS\system32\msjtes40.dll', No symbols loaded.
'omc.exe': Loaded 'C:\WINDOWS\system32\vbajet32.dll', No symbols loaded.
'omc.exe': Loaded 'C:\WINDOWS\system32\expsrv.dll', No symbols loaded.
'omc.exe': Unloaded 'C:\WINDOWS\system32\msexcl40.dll'
The thread 'Win32 Thread' (0x544) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0xcd0) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x958) has exited with code 0 (0x0).
The thread 'Win32 Thread' (0x938) has exited with code 0 (0x0).
'omc.exe': Loaded 'C:\WINDOWS\system32\odexl32.dll', No symbols loaded.
'omc.exe': Unloaded 'C:\WINDOWS\system32\odexl32.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\odbcjt32.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\odbcji32.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\msjter40.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\msjint40.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\msjet40.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\mswstr10.dll'
HEAP[omc.exe]: Invalid Address specified to RtlValidateHeap( 02440000, 02DEBD00 )

Windows has triggered a breakpoint in omc.exe.

This may be due to a corruption of the heap, and indicates a bug in omc.exe or any of the DLLs it has loaded.

The output window may have more diagnostic information

========================================================================================

Please if anyone identifies the error let me know.

Thanks in advance

Ratheesh

Re: Debug Assertion Failed - Error message

Hamid_RT3-Oct-07 23:26

Hamid_RT

3-Oct-07 23:26

Can you show your code that generates this error(dont need to post full code).

Re: Debug Assertion Failed - Error message

rajaratk3-Oct-07 23:31

rajaratk

3-Oct-07 23:31

void FileNameCreate(LPTSTR szPathBuffer, LPTSTR sPath, LPTSTR sFile, LPTSTR sExt)
{
char szTmpPathBuffer[MAX];
char *sTmpPath= NULL;
char *sTmpFile = NULL;
char sTmpExt[LEN_MAX];
try
{
sTmpPath = new char[LEN_MAX];
sTmpFile = new char[LEN_MAX];
TrUnicodeToChar(sPath,sTmpPath);
TrUnicodeToChar(sFile,sTmpFile);
TrUnicodeToChar(sExt,sTmpExt);

FileNameCreate(szTmpPathBuffer, sTmpPath, sTmpFile, sTmpExt,sizeof(szTmpPathBuffer));

TrCharToUnicode(szTmpPathBuffer,szPathBuffer);
delete [] sTmpPath;
delete [] sTmpFile;
}
catch(bad_alloc)
{
if(sTmpPath!=NULL)
delete [] sTmpPath;
if(sTmpFile!=NULL)
delete [] sTmpFile;
}
}

Error message has been occurred only in the text is shown in big letters.

Re: Debug Assertion Failed - Error message

James R. Twine4-Oct-07 1:37

James R. Twine

4-Oct-07 1:37

The code listing is incomplete (missing information on sTmpExt), but my guess is that TrCharToUnicode(...) is overwriting the memory pointed to by szPathBuffer because it is not being told the size of the memory (in TCHARs) being pointed to by szPathBuffer.

Peace!

Re: Debug Assertion Failed - Error message

KarstenK4-Oct-07 2:37

KarstenK

4-Oct-07 2:37

char to unicode means also that you need twice the amount of bits to store the output string. Confused | :confused:

Greetings from Germany

Re: Debug Assertion Failed - Error message

David Crow4-Oct-07 3:29

David Crow

4-Oct-07 3:29

rajaratk wrote:
When I am debugging the source code,I got "Debug Assertion Failed"...

What line of what file is asserting?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Debug Assertion Failed - Error message

rajaratk4-Oct-07 20:15

rajaratk

4-Oct-07 20:15

When I debugging our application, I got the error messages in "output" window of VS2005.

'omc.exe': Unloaded 'C:\WINDOWS\system32\msjet40.dll'
'omc.exe': Unloaded 'C:\WINDOWS\system32\mswstr10.dll'
Run-Time Check Failure #2 - Stack around the variable 'sStr' was corrupted.
Run-Time Check Failure #2 - Stack around the variable 'sStr' was corrupted.
Run-Time Check Failure #2 - Stack around the variable 'sStr' was corrupted.

Also I got the popup message also:

"Run-Time Check Failure #2 - Stack around the variable 'sStr' was corrupted"

Please help me to solve this.

Re: Debug Assertion Failed - Error message

David Crow5-Oct-07 3:20

David Crow

5-Oct-07 3:20

But where is the assertion?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Debug Assertion Failed - Error message [modified]

rajaratk7-Oct-07 20:16

rajaratk

7-Oct-07 20:16

Hi,

Thanks a lot for your response. I have added the code snippet which I got debug assertion failed error shown in bold letter:

============================================================
#define MAX 520

#define LEN_MAX 500

void FileNameCreate(LPTSTR szPathBuffer, LPTSTR sPath, LPTSTR sFile, LPTSTR sExt)
{
char szTmpPathBuffer[MAX];
char *sTmpPath= NULL;
char *sTmpFile = NULL;
char sTmpExt[LEN_MAX];
try
{
sTmpPath = new char[LEN_MAX];
sTmpFile = new char[LEN_MAX];
TrUnicodeToChar(sPath,sTmpPath);
TrUnicodeToChar(sFile,sTmpFile);
TrUnicodeToChar(sExt,sTmpExt);

FileNameCreate(szTmpPathBuffer, sTmpPath, sTmpFile, sTmpExt,sizeof(szTmpPathBuffer));

TrCharToUnicode(szTmpPathBuffer,szPathBuffer);
delete [] sTmpPath;
delete [] sTmpFile; }

=========================================================

LPTSTR TrCharToUnicode(char *CharBuffer, LPTSTR csBuffer, size_t uNbChar)
{
USES_CONVERSION;
if(CharBuffer == NULL)
return NULL;
else
{
if (uNbChar == 0)
uNbChar = strlen (CharBuffer)+1;
MultiByteToWideChar(CP_ACP, 0, CharBuffer, uNbChar, csBuffer, uNbChar);
return csBuffer;
}
}
=======================================================

Please give me some input to solve this issue.

Thanks in advance.

-- modified at 2:58 Monday 8th October, 2007

Re: Debug Assertion Failed - Error message

David Crow8-Oct-07 2:47

David Crow

8-Oct-07 2:47

What line of what file is asserting (hint: it will contain an assert() statement)?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Debug Assertion Failed - Error message [modified]

rajaratk8-Oct-07 18:41

rajaratk

8-Oct-07 18:41

Hai,

Thanks for your response. I got the following errors:

1. Windows has triggered a breakpoint in omc.exe.

This may be due to a corruption of the heap, and indicates a bug in omc.exe or any of the DLLs it has loaded.

The output window may have more diagnostic information

This is shown in the output window of VS2005

2. Run-Time Check Failure #2 - Stack around the variable 'sStr' was corrupted.

This one is display as popup window

3.Heap corruption detected at 02DF1B20
First-chance exception at 0x7c949fd5 in omc.exe: 0xC0000005: Access violation reading location 0xcdcdcdd1.
AtlThrow: hr = 0x8007000e
First-chance exception at 0x7c81eb33 in omc.exe: Microsoft C++ exception: CMemoryException at memory location 0x0011e370..
HEAP[omc.exe]: Heap block at 02DF18C0 modified at 02DF1B06 past requested size of 23e

Windows has triggered a breakpoint in omc.exe.

This may be due to a corruption of the heap, and indicates a bug in omc.exe or any of the DLLs it has loaded.

The output window may have more diagnostic information

This is shown in the output window of VS2005

Please give me solution to solve this

-- modified at 8:23 Tuesday 9th October, 2007

Now I got the following error message:

First-chance exception at 0x7c81eb33 in omc.exe: Microsoft C++ exception: CFileException at memory location 0x0012bdd4..
CFile exception: badPath, File d:\omc\omc610~1\omcpro~1\targprod\afr100\customer.dbs\test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test5test523.cdb, OS error information = 3.First-chance exception at 0x7c81eb33 in omc.exe: Microsoft C++ exception: CFileException at memory location 0x0012b0f4..
Load ACT: INSTALLER AB from d:\omc\omc610_rajaratk_priv_view\omcproject\targprod\afr100\ini\afr100a.ini
The thread 'Win32 Thread' (0xc1c) has exited with code 0 (0x0).
LockDataBase : The state of the object is signaled

The problem is that if I save the file name in 200chars it is accepting. But If i save the file name as 202 chars it will throw an exception. I have given the variable size upto 2000.

Please give me your suggestions to solve this issue.

Re: Debug Assertion Failed - Error message

David Crow9-Oct-07 2:49

David Crow

9-Oct-07 2:49

The errors you show are (CFile) exceptions. Does the path shown in the exception not mean anything to you?

For the fourth time, what line of what file is asserting?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.