HWND handle - C / C++ / MFC Discussion Boards

ddmcr29-Sep-05 7:07

29-Sep-05 7:07

I've seen this article already , but this program is written in with Win32, and i could not implement the technique Lim is using there in MFC Frown | :-(

"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill

Re: Spy++ Utility

David Crow29-Sep-05 9:16

David Crow

29-Sep-05 9:16

Giorgi Moniava wrote:
...this program is written in with Win32, and i could not implement the technique Lim is using there in MFC

Why not?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Spy++ Utility

ThatsAlok29-Sep-05 17:57

ThatsAlok

29-Sep-05 17:57

Giorgi Moniava wrote:
Lim is using there in MFC

then you can try this MFC version :-
http://www.codeproject.com/tools/WindowScraper_Utility.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Spy++ Utility

ddmcr30-Sep-05 6:01

ddmcr

30-Sep-05 6:01

thanks alok Rose | [Rose]

"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill

Re: Spy++ Utility

ThatsAlok30-Sep-05 18:02

ThatsAlok

30-Sep-05 18:02

Giorgi Moniava wrote:

thanks alok

Mention Not Buddy Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

e How to get the source IP address and port ?

rushing29-Sep-05 5:25

rushing

29-Sep-05 5:25

Here is a server that receice UDP visit.
The parameters of socket include the destination IP address and port.
Moreover, how to get the source IP address and port?
Thanks!

Re: e How to get the source IP address and port ?

Graham Bradshaw29-Sep-05 13:51

Graham Bradshaw

29-Sep-05 13:51

If you're using accept, the second parameter is an optional pointer to a structure that contains source information.

HWND handle

tl0825429-Sep-05 5:02

tl08254

29-Sep-05 5:02

Hi folks!

I'm working on a MFC project and i've got a question to make. The project i'm involved in, is a dialog based aplication. So, the Wizard took the first steps of the work. I'm basing the program on an example that has been created entirely programming, and it makes reference to a HWND handle variable that is necessary to pass to one of the methods.

The code is like this:

Code:
HRESULT CText::BlendText(HWND hwndApp, TCHAR *szNewText)
{

LONG cx, cy;
HRESULT hr;
CSubtitlesDlg dialog;

// Create a device context compatible with the current window
HDC hdc= GetDC(hwndApp);
HDC hdcBmp = CreateCompatibleDC(hdc);

// Write with a known font by selecting it into our HDC
HFONT hOldFont = (HFONT) SelectObject(hdcBmp, g_hFont);

// Determine the length of the string, then determine the
// dimensions (in pixels) of the character string using the
// currently selected font. These dimensions are used to create
// a bitmap below.
int nLength, nTextBmpWidth, nTextBmpHeight;
SIZE sz={0};

nLength = (int) _tcslen(szNewText);
GetTextExtentPoint32(hdcBmp, szNewText, nLength, &sz);
nTextBmpHeight = sz.cy;
nTextBmpWidth = sz.cx;

// Create a new bitmap that is compatible with the current
//window
HBITMAP hbm = CreateCompatibleBitmap(hdc, nTextBmpWidth,
nTextBmpHeight);
ReleaseDC(hwndApp, hdc);

// Select our bitmap into the device context and save the old one
BITMAP bm;
HBITMAP hbmOld;
GetObject(hbm, sizeof(bm), &bm);
hbmOld = (HBITMAP)SelectObject(hdcBmp, hbm);
...
I make a reference to this method in another class like this:
Code:
hr = Text.BlendText(___________, Text.g_szAppText);<- I need to know what to put in here

Does anybody know which method do i need to use in order to get this handle to the window i'm working with? I wonder if the question is clear, but i'll try!! Many thanks. Serj.

Re: HWND handle

John M. Drescher29-Sep-05 6:15

John M. Drescher

29-Sep-05 6:15

Did you try

AfxGetMainWnd()->m_hWnd

John

Re: HWND handle

ThatsAlok29-Sep-05 22:25

ThatsAlok

29-Sep-05 22:25

In continuation with Mr John... Smile | :)

, you can use this tooo

AfxGetMainWnd()->GetSafeHwnd

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Get Text for a Control

cats819929-Sep-05 4:19

cats8199

29-Sep-05 4:19

I am trying to get the text from a control in another process. I know the handle for the control and I know the afx class name. It is as follows:

Class Name : Afx:400000:20

This control is part of a chatbox in an external application. I have tried several different things but I have so far failed to get the text from it.

Any ideas or help would be greatly appreciated.

Thanks.
Dave

Re: Get Text for a Control

David Crow29-Sep-05 6:51

David Crow

29-Sep-05 6:51

cats8199 wrote:
I have tried several different things...

Such as?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Get Text for a Control

cats819929-Sep-05 7:19

cats8199

29-Sep-05 7:19

I have tried sending the messages EM_GETLINECOUNT and WM_GETTEXT. Both return zero. This is a multiline text box. I have tried treating it as a CListBox, a CComboBox and a CListCtrl. All to no avail.

Dave

Re: Get Text for a Control

David Crow29-Sep-05 9:15

David Crow

29-Sep-05 9:15

cats8199 wrote:
This is a multiline text box. I have tried treating it as a CListBox, a CComboBox and a CListCtrl. All to no avail.

It's no surprise! Why haven't you tried CEdit instead? That, however, is not the problem here. If neither EM_GETLINECOUNT nor WM_GETTEXT worked, using an MFC class is just added complexity.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Get Text for a Control

Andy Moore29-Sep-05 6:59

Andy Moore

29-Sep-05 6:59

Send the WM_GETTEXT message to that control.

Human beings were not meant to sit in little cubicles staring at computer screens all day, filling out useless forms and listening to eight different bosses drone on about about mission statements. -- Peter Gibbons

Re: Get Text for a Control

cats819929-Sep-05 7:19

cats8199

29-Sep-05 7:19

Re: Get Text for a Control

PJ Arends29-Sep-05 10:41

PJ Arends

29-Sep-05 10:41

Check out this article, it has code that does what you want.http://www.codeproject.com/tools/WindowScraper_Utility.asp[^]

If you tried sending a WM_SETTEXT message to the window and it doesn't work, it could because the authors of the control did not implement a WM_SETTEXT handler. I see this error quite often in custom controls. What a lot of people seem to do is override the GetWindowText() function, instead of adding a WM_GETTEXT message handler.

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TAPI in VC++

SerGrey29-Sep-05 4:05

SerGrey

29-Sep-05 4:05

I read MSDN whole day, but it didn't work. I need some example or good FAQ.

Re: TAPI in VC++

SerGrey29-Sep-05 4:13

SerGrey

29-Sep-05 4:13

I mean TAPI for 2 modem connection (not internet).

Re: TAPI in VC++

Marc Soleda29-Sep-05 5:12

Marc Soleda

29-Sep-05 5:12

have you tried this article[^] ?

Marc Soleda.

... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

Re: TAPI in VC++

Eytukan29-Sep-05 6:46

Eytukan

29-Sep-05 6:46