Anonymous30-Nov-03 10:19

Anonymous

30-Nov-03 10:19

no that part is fine

WindowFromPoint()

__Cerb29-Nov-03 7:45

__Cerb

29-Nov-03 7:45

I'm trying to convert this VB line

Dim hWndp As Long<br />
hWndp = WindowFromPoint(Pt.X - 5, Pt.Y - 5)

into C++... any help please?

Thanks,
Mike

Re: WindowFromPoint()

DaFrawg29-Nov-03 9:13

DaFrawg

29-Nov-03 9:13

MSDN:
static CWnd* PASCAL WindowFromPoint( POINT point );

So your C++ code should be:
CWnd* hWndp = WindowFromPoint( CPoint(Pt.x - 5, Pt.y - 5) );

Re: WindowFromPoint()

Michael Dunn29-Nov-03 9:14

Michael Dunn

29-Nov-03 9:14

POINT Pt; // assume this is filled in...
HWND hWndp;
POINT Pt2 = Pt;
 
  Pt2.x -= 5;
  Pt2.y -= 5;
 
  hWndp = WindowFromPoint ( Pt2 );

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
There is a saying in statistics that a million monkeys pounding on typewriters would eventually create a work of Shakespeare. Thanks to the Internet, we now know that this is not true.

ARRGGHHH stupid CryptoAPI (CryptEncrypt)

(Steven Hicks)ⁿ⁺¹29-Nov-03 7:24

(Steven Hicks)ⁿ⁺¹

29-Nov-03 7:24

The first time i call EncryptString (below) I pass "<password>asdf" it encrypts to to be a length of 25 and encrypts it right. But when i try to encrypt a 2539 length string it returns a string of a length of 225 and only partically encrypted. Why is this happening and how do I fix it?

CString CEncyptionClass::EncryptString(CString m_strUnencryptedString)
{
//variables
//Date:11 22 03
CString m_strResultingText;
HCRYPTPROV hProv = NULL;
HCRYPTKEY hKey = NULL;
HCRYPTHASH hHash = NULL;
DWORD dwLength;
BYTE * pbBuffer;
LPTSTR m_tContents=ConvertCStringToChar(m_strUnencryptedString);

TCHAR szLocalPassword[] = _T("alongrandompassword");
//

// Get handle to user default provider.
if (CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, 0))
{
// Create hash object.
if (CryptCreateHash(hProv, CALG_MD5, 0, 0, &hHash))
{
// Hash password string.
dwLength = _tcslen(szLocalPassword);
if (CryptHashData(hHash, (BYTE *)szLocalPassword, dwLength, 0))
{
// Create block cipher session key based on hash of the password.
if (CryptDeriveKey(hProv, CALG_RC4, hHash, CRYPT_EXPORTABLE, &hKey))
{

dwLength= _tcslen(m_tContents);

pbBuffer=(BYTE*)malloc(dwLength);

if (pbBuffer != NULL)
{
memcpy(pbBuffer, m_tContents, dwLength);

if (CryptEncrypt(hKey, 0, true, 0, pbBuffer, &dwLength, dwLength))
{
m_strResultingText.Format("%s",pbBuffer);

CString strShow;
strShow.Format("After: %s \r\n(%s)\r\n %d %d", m_strResultingText,m_tContents,strlen((const char*) pbBuffer) ,dwLength);
MessageBox(strShow);
}
free(pbBuffer);

}
CryptDestroyKey(hKey); // Release provider handle.
}
}
CryptDestroyHash(hHash); // Destroy session key.
}
CryptReleaseContext(hProv, 0);
}

return m_strResultingText;
}

-Steven Hicks

CPA

CodeProjectAddict

Actual Linux Penguins were harmed in the creation of this message.

More tutorials: Ltpb.8m.com: Tutorials |404Browser.com (Download Link)

SetWindowsHookEx and HINSTANCE;

Bo Hunter29-Nov-03 6:39

Bo Hunter

29-Nov-03 6:39

I am tring to build a keyboard hook that blocks the
windows keys. It has to be in a seperate dll. The
call to SetWindowsHookEx requires a HINSTANCE to the
dll. How do I get an HINSTANCE to my dll with out
having to use CWinApp. There is way more stuff in the
CWinApp class than I would like to use.

//This works
class CTaskKeyHookDll : public CWinApp
{
public :
	CTaskKeyHookDll(){ }
	~CTaskKeyHookDll(){ }
} MyDll;



//This don't work
class CTaskKeyHookDll
{
public :
	HINSTANCE hInstance;

	CTaskKeyHookDll(){ }
	~CTaskKeyHookDll(){ }
} MyDll;

Anyone know how to do this?

Thank You
Bo Hunter

Re: SetWindowsHookEx and HINSTANCE;

Anonymous29-Nov-03 7:14

Anonymous

29-Nov-03 7:14

in your overridden DllMain() save the first parameter(HINSTANCE) to g_hInstance.

Help with going through text file.

S^nyp29-Nov-03 6:28

S^nyp

29-Nov-03 6:28

I am using a textfile assocciated with my file to store all my data that has resulted from my program, though I have and know know how to record things, I need help in retreiving and analyzing data from the txt file. Can anyone help? I need to look for a specific string of numbers then go to end of the line and retrieve the last character, can someone please help me acheive this, I am using win32.

Re: Help with going through text file.

BaldwinMartin29-Nov-03 19:29

BaldwinMartin

29-Nov-03 19:29

Have you thought of a ini file?
If so there is so much code on this site for store and retrieve data.

Best Wishes and Happy Holiday's,
ez_way

Re: Help with going through text file.

S^nyp30-Nov-03 7:08

S^nyp

30-Nov-03 7:08

Is there anything special about ini files

Re: Help with going through text file.

BaldwinMartin30-Nov-03 19:48

BaldwinMartin

30-Nov-03 19:48

Hi Sure they take all the work out of acc. a text doc.

See class
http://www.codeproject.com/useritems/CIni.asp?target=cini
and

http://www.codeproject.com/useritems/hongky.asp?target=cini

Best Wishes and Happy Holiday's,
ez_way

MFC multiple documents?

IndrekSnt29-Nov-03 3:16

IndrekSnt

29-Nov-03 3:16

I have a MFC program which supports Documents but I want my program to start with multiple documents.

How could it be possible?

Earth is like an apple, where are worms in it - the worms are humans...

Re: MFC multiple documents?

Anonymous29-Nov-03 5:21

Anonymous

29-Nov-03 5:21

I guess if you call OpenDocument as many times that many document window and view will be opened.

IndrekSnt wrote:
Earth is like an apple, where are worms in it - the worms are humans...

IndrekSnt wrote:
where are worms in it
Is it a question or a statement?

Re: MFC multiple documents?

IndrekSnt29-Nov-03 6:30

IndrekSnt

29-Nov-03 6:30

BOOL CGLprMpDoc::OnNewDocument()<br />
{<br />
	if (!CDocument::OnNewDocument())<br />
		return FALSE;<br />
<br />
	// TODO: add reinitialization code here<br />
	// (SDI documents will reuse this document)<br />
<br />
	return TRUE;<br />
}

What do I have to write between lines:
// (SDI documents will reuse this document)
and:
return TRUE;

---
Earth is like an apple, where are worms in it - the worms are humans...

Re: MFC multiple documents?

l a u r e n29-Nov-03 13:32

l a u r e n

29-Nov-03 13:32

errrrrrr
to open multiple documents u need to be writing an MDI app

MDI = multiple document interface
SDI = single document interface

"there is no spoon"
biz stuff about me

Re: MFC multiple documents?

JWood29-Nov-03 14:03

JWood

29-Nov-03 14:03

This may be a little off the wall but you might want to think about the benefits of using Forth. It is a fine training language and will allow you to master the concept of object oriented thinking and open many possibilities for you.

My neighbours think I am crazy - but they don't know that I have a trampoline. All they see my head bobbing up and down over the fence every five seconds

Re: MFC multiple documents?

JWood29-Nov-03 15:03

JWood

29-Nov-03 15:03

Kidding

My neighbours think I am crazy - but they don't know that I have a trampoline. All they see my head bobbing up and down over the fence every five seconds

Re: MFC multiple documents?

IndrekSnt29-Nov-03 22:51

IndrekSnt

29-Nov-03 22:51

Hmm, I started a MFC MDI project but I don't know how to customise it more than MFC MDI wizard allows...

---
Earth is like an apple, where are worms in it - the worms are humans...

CryptVerifySign - how it work

Alyan29-Nov-03 0:41

Alyan

29-Nov-03 0:41

Hello all

I need information how verify (hash data and signature) this function.
I get data from hash by using CryptGetHashParam(...)and send to
SmartCard (infineon). This card prepare digital signature.
Next step call CryptVerifySign(...) for this signature and hash but receive error - bad signature.
What's wrong ?

Thanks

Adam Lyzwinski

Alyan

crystal report ocx - HRESULT - 2147024770

murali_utr29-Nov-03 0:15

murali_utr

29-Nov-03 0:15

hi,

my application uses crystal report ocx and take setup for with application using .net setup wizard. while intalling the application on pc i got the following error

Module C:\wINNT\System32\crystl32.occx failed to register. HRESULT -2147024770 Contact your support personnel.

any one help to me.

thanks in advance.

Re: crystal report ocx - HRESULT - 2147024770

Steve S30-Nov-03 23:46

Steve S

30-Nov-03 23:46

That means a dependent module (DLL or OCX) wasn't installed. Run 'depends' on the OCX and see what might be missing.

Steve S

Need one more help

murali_utr3-Dec-03 21:35

murali_utr

3-Dec-03 21:35

hi steve,
thanks for u help. problem is solved. i have one more problem if u have any idea share with with me. when i open the report from my problem on installed system(not development system) report is opened and immedeatly closed unable to view the report. my email is murali_utr@hotmail.com or murali@s-ecom.com. thanks in advance.

Murali.M

CppWebBrowser Help

jaiii28-Nov-03 23:49

jaiii

28-Nov-03 23:49

Hi
In deplhi TWerbBrowser is
document.documentElement

whot is equivqlent in BCB ?

THANKX veri much

CppWebBrowser question

jaiii28-Nov-03 22:43

jaiii

28-Nov-03 22:43

How can I extract tags from CppWebBrowser->Document in BCB

marian_p@pobox.sk

THANKX

capture program

styve28-Nov-03 22:42

styve

28-Nov-03 22:42

Hi!

I am going to start implementing a capture program in c++ that logg all traffic in some specific points in the network.

I need some tips and hints, because I do not know where to start. I am doing preparation.

Thankful for your thoughts,
Stefan

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

C / C++ / MFC

CPA