Article Writing Discussion Boards

10-Aug-01 12:49

I wish to divert all drawing from a default DC to a memoryDC, without waiting for the DC to draw and then copying.. In fact, that it draws to the window at all is a hindrance.

the ideal for me would be to divert only the Controls (TextEdits, ListBoxes, etc) into their own separate memoryDCs, however diverting an entire window into a memoryDC would also be feasible.

//////
just in case I have not been clear, I will give an example:

I create a window. I divert the window area into a memory dc+bitmap.. The window captures all of my events (for instance I might have a textbox which the user can type into), and although it draws to the memoryDC, the user sees nothing within the window itself.

At time "X" I take the memoryDC, blt it into a bitmap (or i guess it is already blitted in the case of the memoryDC?), and transfer it to disk, giving me images every X seconds or so..

the most imporant part though, is that the user does not see the contents of the window..
//////

If you can help with this, I would be extremely grateful Smile | :)

Boy oh boy I've been pulling my hair out over this.. I thought I could just do a "GetDC()->Detach(); GetDC()->Attach( -the memory DC which I created along with a bitmap -);" -> but no, this doesn't work for me..: Confused | :confused:

thanks tim:

Timothy Prepscius (timprepscius@hNoOtSmPaAiMl.com) <- remove NOSPAM

Re: route all drawing to a memoryDC

11-Aug-01 16:56

just, so you know, I've spent many an hour trying to accomplish this, (without writing an entire CEdit control myself), and I don't think it's possible.

the GDI just doesn't seem to allow manual-association between a window handle or control handle with a HDC.

anybody have evidence to the contrary?

spell checker!! source code

sriks10-Aug-01 3:50

sriks

10-Aug-01 3:50

can any one provide me with the spell checker source code for my html/javascript application. OR is there any site which you know would provide the code?

Thanks in advance

Re: spell checker!! source code

Matt Gullett10-Aug-01 6:00

Matt Gullett

10-Aug-01 6:00

Source code for spell checkers is available, but I have not seen any open-source implementations that provide spell checking for web forms.

You should check out the ASPELL project on source forge (http://sourceforge.net/projects/aspell/). I have not visitied in a very long time, but they may have something for you.

Also, I have posted a spell checking engine on this site (http://www.codeproject.com/cpp/spellchecker_mg.asp#xx44008xx), but it does not support web forms and it is not fully complete anyway.

Winter Tree software (http://www.wintertree-software.com/index.html) has a commerical spell checking API and I believe they have a HTML/ASP solution. Its not free and you will not get the source code.

Also, there is a product called JSpell which is a java based spell checking engine. Last I looked it did not support web forms, but was going to in the future. (http://www.wallstreetwise.com/jspell.html)

I hope this helps.

C Variable/type extraction

Peter Liedholm9-Aug-01 23:26

Peter Liedholm

9-Aug-01 23:26

A tool for automating listing of variables ant their types as declared would be great. Does anyone know one?

Regards
/Peter

Rich Edit 2.0

8-Aug-01 7:04

Can some one give me an example on how to use Rich Edit 2.0 Confused | :confused:

Re: Rich Edit 2.0

16-Aug-01 0:27

Try www.bcbcaq.com Smile | :)

antivirus software

sadiq mohammed6-Aug-01 23:14

sadiq mohammed

6-Aug-01 23:14

hello all

i am doing antivirus software project as part of college syllabus.
please help me out by sending some of source code which can detect
1. jerusalem virus
2. boot sector virus
3. yankee doodley virus
4. stealth virus

please help me out Smile | :)

sadiq mohammed
bangalore

file splitter

6-Aug-01 4:14

hi i am new in c++ world. i need code for a file splitter. if some one can help me on this topic i would be very grateful.;P

GetIpNetTable

Heidyon5-Aug-01 17:23

Heidyon

5-Aug-01 17:23

Dear all

How to use GetIpNetTable()function?

Thank you

Telephony API

razizade4-Aug-01 22:58

razizade

4-Aug-01 22:58

I want code about TAPI.
i want to save recieved call and play greeting message on
phone line.
tanks!

MSAA class?

Kurotora4-Aug-01 6:37

Kurotora

4-Aug-01 6:37

Hi,

I was asked to support MSAA to make custom controls readable by "Screen Reader". For example, I have CListCtrl which shows bitmaps representing key tops. Currently those bitmaps can't let screen reader *read* and I would like to make this possible in easier and smarter way. If someone can provide a class to add MSAA capability to controls (for example, custom bitmap button), that will be very nice.

Kurotora

Access VSS files from Command prompt using bat files

mohith2-Aug-01 23:30

mohith

2-Aug-01 23:30

Hi
I am trying to write some bat files to
check the root of a directory/file within a project in VSS
and check out files from multiple databases and over the network in VSS

has anybody done anything like this before? any ideas?

-magicmohith Confused | :confused:

be the change that you want to see in the world

Re: Access VSS files from Command prompt using bat files

Albert van Peppen16-Aug-01 23:11

Albert van Peppen

16-Aug-01 23:11

Why don't you just use SS.EXE?
Start it with SS /? and you get all the help you need..

Albert 'The Mad Butcher' van Peppen

SQL Server and images

Not Active1-Aug-01 21:03

Not Active

1-Aug-01 21:03

Has anyone got samples of how to store an image into a SQL Server database.

I'm trying to use C++ and ATL OLEDB. The accessor maps the column to as
BLOB_ENTRY(2, IID_ISequentialStream, STGM_READ, m_image)
and I can load an image using the OleLoadPicture to store it in an IPicture interface. Now I need to be able to get this into the database.

I have tried to change the map to an IStream as it inherits from ISequentialStream
BLOB_ENTRY(2, IID_IStream, STGM_READ, m_image)
then use the IPicture::SaveAsFile(m_image,...) this doesn't work because the m_image pointer is NULL to begin with.

I have tried other methods using IStream::Write, etc. but the SetData or INsert always fails.

Change window name...

Patrick Grijsen1-Aug-01 15:53

Patrick Grijsen

1-Aug-01 15:53

Hi everyone,

I need help with changing a window name at runtime and have browsed the internet to find what I'm looking for without much luck Cry | :((

until now I hope!
What I need is C++ code for a small program (without runtime files) that executes a program [gamerun.exe] and than changes the name of a certain window. This is what I have come up with so far:

HWND hwnd = ::FindWindow(NULL, "OriginalNameOfWindow");

if(hwnd)
{
CWnd* wnd = CWnd::FromHandle(hwnd);
wnd->SetWindowText("NewNameForOriginalWindow");
}

Would anyone be willing to help me converting this code into a working program? I am willing to pay a fee for solving my problem! Roll eyes | :rolleyes:

Thanks in advance,

PEMG

----------------------
MS Windows ME
MS Visual C++ 6.0 Pro
----------------------

Re: Change window name... update

Patrick Grijsen2-Aug-01 11:06

Patrick Grijsen

2-Aug-01 11:06

Here's what I did step by step:

1: Created a new MFC AppWizard.EXE project (dialog based)
2: Compiled the program and closed it again
3: Selected the dialog from the register
4: Added a code to OnInitDialog trough the ClassWizard
5: Compiled again and it didn't worked!

I have used this code:

// WINRename
// Source code by: TCS

BOOL CTCSDlg::OnInitDialog()
{
CDialog::OnInitDialog();
{

WinExec("gamerun.exe", SW_SHOW);

if(hwnd)
{
CWnd* wnd = CWnd::FromHandle(hwnd);
wnd->SetWindowText("Nemo Games");
MessageBox("Window name changing succeed");
}
else
MessageBox("Couldn't find Acknex window");

OnOK();

return TRUE;
}

This is the error message from Visual C++:

--------------------Configuration: TCS - Win32 Debug--------------------
Compiling...
TCSDlg.cpp
C:\Development\TCS\TCSDlg.cpp(98) : error C2065: 'hwnd' : undeclared identifier
Error executing cl.exe.

TCSDlg.obj - 1 error(s), 0 warning(s)

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

I don't know what I did wrong maybe someone can help me out a little?
Thanks in advance,

PEMG

Windows ME
Visual C++ 6.0 PRO

Re: Change window name... update

Carlos Antollini2-Aug-01 11:55

Carlos Antollini

2-Aug-01 11:55

You forgot this

HWND hwnd = ::FindWindow(NULL, "OriginalNameOfWindow");

Cheers!!!

Carlos Antollini.

Re: Change window name... update

Patrick Grijsen2-Aug-01 23:39

Patrick Grijsen

2-Aug-01 23:39

Thanks for your help mister Antollini,
the program runs like a charm now!

CU

PEMG

Re: Change window name... WAIT

Patrick Grijsen3-Aug-01 1:38

Patrick Grijsen

3-Aug-01 1:38

This is the code I use right now:

BOOL CTCSDlg::OnInitDialog()
{
CDialog::OnInitDialog();
{

WinExec("gamerun.exe", SW_SHOW);

HWND hwnd = ::FindWindow(NULL, "Gamestudio");

if(hwnd)
{
CWnd* wnd = CWnd::FromHandle(hwnd);
wnd->SetWindowText("Nemo Games");
wnd->SetIcon(IDI_NEON);
MessageBox("Window name changing succeed");
}
else
MessageBox("Couldn't find Acknex window");

OnOK();

return TRUE;
}

but the program couldn't find the Gamestudio window because it isn't loaded yet. How do I put a WAIT (seconds) into the code seen above, any ideas?

Thanks in advance,

PEMG

Re: Change window name... WAIT

Carlos Antollini3-Aug-01 4:38

Carlos Antollini

3-Aug-01 4:38

You have Two solutions.
One- Execute the program with WinExec and make a while until you get the handle.

HWND hwnd = NULL;

while(hWnd != NULL)
{
   hwnd = ::FindWindow(NULL, "Gamestudio"); 
   Sleep(500);
}

Two-
Using CreateProcess();

STARTUPINFO StartupInfo = {0};
PROCESS_INFORMATION ProcessInfo;

StartupInfo.cb = sizeof(STARTUPINFO);

if(CreateProcess(NULL, lpstrCommand, NULL, NULL, FALSE,
	0, NULL, (LPCSTR)lpstrCurrentDirectory, &StartupInfo, &ProcessInfo))
{
	/* Start Process*/
        WaitForSingleObject(ProcessInfo.hProcess, INFINITE);
}
else
{
	/* Process could not be started */
	return FALSE;
}

The WaitForSingleObject wait for the process Infinitly, but you can use milliseconds, because if the application don't start your program wait for ever in that point.

Good Luck!!!!
Big Grin | :-D

Carlos Antollini.

Re: Change window name... WAIT

Patrick Grijsen3-Aug-01 5:41

Patrick Grijsen

3-Aug-01 5:41

Thanks for your reply I will try both solutions and let you know the results. Furthermore I will put your name inside the credits & copyright next to TCS!

Best regards,

PEMG

Re: Change window name... Final

Patrick Grijsen3-Aug-01 20:15

Patrick Grijsen

3-Aug-01 20:15

I got the code half working now but there are still some problems that need to be solved before the renaming process works.

1: how to get the window ontop all other windows?
2: how to end the program when the process is done?

This is the source code of the program so far:

/////////////////////////////////////////////////////////////////////////////
// CTCSDlg message handlers
// Removed Sleep(9000); (for testing)

BOOL CTCSDlg::OnInitDialog()
{
CDialog::OnInitDialog();
{

WinExec("gamerun.exe -wnd", SW_SHOW);

HWND hwnd = NULL;while(hwnd != NULL){ hwnd = ::FindWindow(NULL,"Gamestudio"); }

if(hwnd)
{
CWnd* wnd = CWnd::FromHandle(hwnd);
wnd->SetWindowText("Nemo Games");
MessageBox("Window caption renamed");

}
else
MessageBox("Couldn't find window");

OnOK();
return TRUE;
}

Re: Change window name... Final

Carlos Antollini6-Aug-01 4:30

Carlos Antollini

6-Aug-01 4:30

1-With ::SetWindowPos(); Using HWND_TOPMOST.
2-You need to get the hProcess, of the program, for this is better to start the program Gamestudio with ::CreateProcess(). With this function is Easy to get the hProcess, then using the function ::GetExitCodeProcess() you will can get the satus of your application.

Cheers!!! Big Grin | :-D

Carlos Antollini.

Re: Change window name... Final

6-Aug-01 4:51

Many thanks for your help mister Antollini,
The program I call it RAW (R)ename (A)cknex (W)indow is getting better and better. I have found a way to change the icon of the dialog as well and with this last piece of code the program is finished!

Best regards,

Patrick Grijsen
PEMG

ps: I lost my login stuff...

Last Visit: 31-Dec-99 18:00 Last Update: 9-Jun-24 21:48

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