C / C++ / MFC Discussion Boards

doctorpi1-Apr-04 6:05

1-Apr-04 6:05

Hi guys
I've got this

CString file;
HANDLE hFile = CreateFile( ?????,........

What I have to put in ????? to get a valid value in hfile,all my tries have finished with a -1.
LPCSTR(file) doesn't work and I don't know what to do.
Thanks
Doc

Re: Problem with strings conversion

Ravi Bhavnani1-Apr-04 6:33

Ravi Bhavnani

1-Apr-04 6:33

See this[^] link.

/ravi

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Re: Problem with strings conversion

doctorpi1-Apr-04 6:42

doctorpi

1-Apr-04 6:42

Already read,but sorry, I can't see the solution.
My question is, how can I convert a CString to the right parameter to the CreateFile method?
Thanks
Doc

Re: Problem with strings conversion

Ravi Bhavnani1-Apr-04 6:49

Ravi Bhavnani

1-Apr-04 6:49

CString strFile = _T("C:\\myfile.txt");
HANDLE hFile = CreateFile (strFile, GENERIC_WRITE, 0, NULL, CREATE_NEW, 0, NULL);

/ravi

My new year's resolution: 2048 x 1536
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Re: Problem with strings conversion

doctorpi1-Apr-04 6:58

doctorpi

1-Apr-04 6:58

Sorry, it has been my fault.
My problem comes maybe from the point that I can't assign my file directly putting double \\.
// My Code
TCHAR m_szDrive[10];
TCHAR m_szDir[MAX_PATH];
TCHAR m_szFullPath[MAX_PATH];
CString sFile;
// Application Path
::GetModuleFileName(NULL,m_szFullPath,MAX_PATH);
_splitpath(m_szFullPath,m_szDrive,m_szDir,NULL,NULL);
sFile=m_szDrive;
sFile+=m_szDir;
sFile+=_T("myfile.txt");
CreateFile(sFile,.... THAT DOESN'T WORK
Do you know how can I convert my string to the right parameter?
Thanks for your patience.
Doc

Re: Problem with strings conversion

Ravi Bhavnani1-Apr-04 7:06

Ravi Bhavnani

1-Apr-04 7:06

TCHAR*  pSlash = NULL;            // location of last backslash filespec
TCHAR   szFilespec [_MAX_PATH];   // filespec

// Get filename of .exe file sans name
::GetModuleFileName (AfxGetInstanceHandle(), szFilespec, _MAX_PATH);
pSlash = _tcsrchr (szFilespec, _T('\\'));
ASSERT (pSlash != NULL);
pSlash++;
*pSlash = _T('\0');
CString strFilename = szFilespec + _T("myFile.txt");
hFile = Create (strFilename, ...)

/ravi

My new year's resolution: 2048 x 1536
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Re: Problem with strings conversion

doctorpi1-Apr-04 7:14

doctorpi

1-Apr-04 7:14

I've corrected
error C2110: cannot add two pointers
CString strFilename = szFilespec + _T("myFile.txt");
but still same problem sorry Frown | :(

Doc

Re: Problem with strings conversion

Ravi Bhavnani1-Apr-04 7:20

Ravi Bhavnani

1-Apr-04 7:20

CString strFilename = szFilespec;
strFilename += _T("myFile.txt");

/ravi

My new year's resolution: 2048 x 1536
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ravib@ravib.com

Re: Problem with strings conversion

doctorpi1-Apr-04 7:24

doctorpi

1-Apr-04 7:24

As I said in my last post, I've already corrected this compiler error and still the same problem.
Sorry Frown | :(

Doc

Re: Problem with strings conversion

Paul Ranson2-Apr-04 0:19

Paul Ranson

2-Apr-04 0:19

This works,

<br />
        TCHAR m_szDrive[10];<br />
        TCHAR m_szDir[MAX_PATH];<br />
        TCHAR m_szFullPath[MAX_PATH];<br />
        CString sFile; <br />
        // Application Path <br />
        ::GetModuleFileName(NULL,m_szFullPath,MAX_PATH);<br />
        _splitpath(m_szFullPath,m_szDrive,m_szDir,NULL,NULL); <br />
        sFile=m_szDrive;<br />
        sFile+=m_szDir;<br />
        sFile+=_T("myfile.txt");<br />
    //    CreateFile(sFile,.... THAT DOESN'T WORK<br />
        HANDLE h = ::CreateFile ( sFile,<br />
                                GENERIC_WRITE,<br />
							    FILE_SHARE_READ,<br />
							    NULL,<br />
							    OPEN_ALWAYS,<br />
							    FILE_ATTRIBUTE_NORMAL,<br />
							    NULL ) ;<br />

Given that your code appears to compile the problem is probably down to the arguments to 'CreateFile'. What are you using?

Paul

Visual C++.NET version 2003

DennisTheMenace1-Apr-04 5:56

DennisTheMenace

1-Apr-04 5:56

Anybody out there have this very frustrating problem?:
When I build my project, Visual often hangs and I have to kill the Visual C++.NET process and start over. It happens on a regular basis and the "Stop build" button does not work. It is very frustrating!!!

GetMenuItemInfo access violation in user32.dll

jphillips_2003@hotmail.com1-Apr-04 5:48

jphillips_2003@hotmail.com

1-Apr-04 5:48

when accessing from another process.
All variables have not null values.

void getMenuItem(HWND hWndMenu)
{
HMENU menu = GetMenu(hWndMenu);
MENUITEMINFO mi, *_mi; unsigned long pid;
HANDLE process;

GetWindowThreadProcessId(hWndMenu, &pid);
process=OpenProcess (PROCESS_VM_OPERATION|PROCESS_VM_READ|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION, FALSE, pid);
_mi=(MENUITEMINFO*)VirtualAllocEx(process, NULL, sizeof(MENUITEMINFO), MEM_COMMIT, PAGE_READWRITE);

ZeroMemory(&mi, sizeof(MENUITEMINFO));

mi.cbSize = sizeof(MENUITEMINFO);
mi.fMask = MIIM_TYPE;
mi.fType = MFT_STRING;
mi.dwTypeData=NULL;
WriteProcessMemory(process, _mi, &mi, sizeof(MENUITEMINFO), NULL);
// this fails GetMenuItemInfo(menu, 1, true, _mi);
ReadProcessMemory(process, _mi, mi, sizeof(MENUITEMINFO), NULL);
int size = mi.cch;
VirtualFreeEx(process, _mi, 0, MEM_RELEASE);

Rich Text Error in VC .Net

BlackDice1-Apr-04 5:12

BlackDice

1-Apr-04 5:12

I have an app that I recently opened a copy of in .Net to try to finish with .Net capabilities. Everything works fine so far, except that when I close the app, I get the following error message:

Unhandled exception at 0x00130276 in FB.exe: 0xC0000005: Access violation reading location 0x0099139c.

It's indicating the Bolded line in the following function (which I have never touched):

CRichEditCntrItem* CRichEditView::GetInPlaceActiveItem() const
{
	ASSERT(m_lpRichEditOle != NULL);
	CRichEditDoc* pDoc = GetDocument();
	CRichEditCntrItem* pItem = NULL;

	CReObject reo;
	HRESULT hr = m_lpRichEditOle->GetObject(REO_IOB_SELECTION, &reo,
		REO_GETOBJ_ALL_INTERFACES);	//reo's interfaces are all in UNICODE
	if (GetScode(hr) == S_OK && (reo.dwFlags & REO_INPLACEACTIVE))
	{
		pItem = pDoc->LookupItem(reo.poleobj);
		if (pItem == NULL)
			pItem = pDoc->CreateClientItem(&reo);
		ASSERT(pItem != NULL);
	}
	return pItem;
}

Does anyone have any idea what's the problem? I'm very new to .Net and have no clue.

If it's broken, I probably did it

bdiamond

Use DLL to raise event in VB app

BlackDice1-Apr-04 5:03

BlackDice

1-Apr-04 5:03

I have two VB apps in which I need to send a PeopleID from one app to another. If the 2nd app is closed, I could probably just specify it as a command-line argument. But what if the app is already running? Is there a way that I can do this in a dll?

If it's broken, I probably did it

bdiamond

Outlook express rules and folders

ravjak1-Apr-04 4:48

ravjak

1-Apr-04 4:48

Hi. I'm looking for some hints (code) that will allow me add new rules to OE and add new Folder.
Thanks

Pain is a weakness living the body

How to find protected/encrypted word documents?

GTS20201-Apr-04 4:10

GTS2020

1-Apr-04 4:10

Hi,

I have wrote a progrm that process word documents. I want to skip processing the password protected word documents.

How to find a word document is password protected, with out opening the document?

Thanks,

GTS

GTS

Re: How to find protected/encrypted word documents?

David Crow1-Apr-04 6:53

David Crow

1-Apr-04 6:53

If you are using Word's COM interface (i.e., automation), then any attempt at opening a file with a missing/invalid password will fail. You can use such a return code to know whether to skip the file or not.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: How to find protected/encrypted word documents?

GTS20201-Apr-04 22:54

GTS2020

1-Apr-04 22:54

Hi
Using either Add method or Open method not causes the failure, it simply stalls the execution. Any idea?

Thanks,

GTS

Re: How to find protected/encrypted word documents?

gUrM33T1-Apr-04 16:39

gUrM33T

1-Apr-04 16:39

Please mention the programming language you are using.

Gurmeet S. Kochar

If you believe in God, it's because of the Devil

Re: How to find protected/encrypted word documents?

GTS20201-Apr-04 22:56

GTS2020

1-Apr-04 22:56

Hi,

I am using VC++ and COM library of MS Word.

Thanks,

GTS

Modem informations

Chernobog11-Apr-04 3:44

Chernobog1

1-Apr-04 3:44

Hi, I need to extract every information I can from ADSL modem(speed,SRN..) (best using tellnet). How to do this or what functions to use? Thanks in advance.

Re: Modem informations

Roger Wright1-Apr-04 4:30

Roger Wright

1-Apr-04 4:30

I doubt that you can. While dialup modems have de facto standards for communications (the Hayes AT command set) I have been unable to find any such common interface for ADSL modems. Of the dozen or so that I've used, no two used the same command line interface (CLI) - the cheaper ones didn't even have one, relying entirely on a built in web page for setting and retrieving configuration information. If you discover such a standard it would make for a great article here, though!

Will Build Nuclear Missile For Food - No Target Too Small

Which message window receives after all when it open?

vgrigor1-Apr-04 3:43

vgrigor

1-Apr-04 3:43

I ned to detect moment when all operation on
Creation and Showing window is finished,
and window ready to work and working ?

Also what message window receives when othr window moves
over it ?

Thanks

Re: Which message window receives after all when it open?

Prakash Nadar1-Apr-04 4:42

Prakash Nadar

1-Apr-04 4:42

vgrigor wrote:
Creation and Showing window is finished,
and window ready to work and working ?

I dont think there is a any that kinda message, but there is a workaround for this...
If i assume that you are talking about dialog window.
You need to do the following steps.

1.Define a custom window

#define WM_MYMESSAGE WM_USER + 1

2.Then at the end of the OnInitDialog you post this message

PostMessage(WM_MYMESSAGE,0,0);

3. Add a message handler for the message in the message map.

...
ON_MESSAGE(WM_MYMESSAGE,OnMyMessage)
...

4. Implement the function.

MSN Messenger.
prakashnadar@msn.com

"If history isn't good, just burn it." - Sidhuism.

Re: Which message window receives after all when it open?

Harold Bamford1-Apr-04 12:33

Harold Bamford

1-Apr-04 12:33

I had a similar problem when starting up a program (Acrobat Reader) and wanted to wait until it had finished convulsing before trying to diddle it. I stumbled upon WaitForInputIdle(). Here is a working example of using it:

STARTUPINFO startupInfo;
PROCESS_INFORMATION processInfo;
::ZeroMemory(&startupInfo, sizeof(startupInfo));
startupInfo.cb = sizeof(startupInfo);
::ZeroMemory(&processInfo, sizeof(processInfo));

char cmd[MAX_PATH + MAX_PATH + 5];
sprintf(cmd,"\"%s\" \"%s\"", szExe, pdfFile);
BOOL startedOK = CreateProcess(
	NULL,
	cmd,	// Complete command line, including quoting
	NULL,	// Process security
	NULL,	// Thread security
	FALSE,	// Inheritance
	0,	// no special startup flags
	NULL,	// no special environment
	NULL,	// no default startup directory
	&startupInfo,
	&processInfo);	// Get hProcess and dwProcessId from this

if(!startedOK)
{
	ShowLastError(cmd);
	return;
}

// Don't attempt to control the Acrobat Reader until it is ready
<big>WaitForInputIdle(processInfo.hProcess,INFINITE);</big>

Of course, this is assuming the windows you're interested in are in another process...

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