C / C++ / MFC Discussion Boards

Roger Allen6-Feb-03 5:46

6-Feb-03 5:46

Can you not just send yourself the correct WM_COMMAND message?

AfxGetApp()->SendMessage(WM_COMMAND, ID_TOOLBAR_BUTTON, 0);

Roger Allen
Sonork 100.10016

WHats brown and sticky?
A stick or some smelly stuff!

Re: Simulating ToolBar Press

Jawache6-Feb-03 5:58

Jawache

6-Feb-03 5:58

Thanks...

Just figured that one out for myself.. i was using AfxGetApp()->SendMessage(ID_TOOLBAR_BUTTON, 0, 0);

and wondering why it wasn't working?!?!?!?

Thanks again...

Asim.

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

program too big for mem

stv6-Feb-03 4:29

stv

6-Feb-03 4:29

Dear all,
I have written a program and try to run it but get this Dos
screen and message
" Program too big to fit into meemory"

Anybody pls help!!! WTF | :WTF:

thanks you Hmmm | :|

Re: program too big for mem

Willem B6-Feb-03 4:33

Willem B

6-Feb-03 4:33

what do you do in the program?

[]D [] []D []

Re: program too big for mem

AlexO6-Feb-03 4:48

AlexO

6-Feb-03 4:48

Operating sytem? (Dos 3.1?)
How big is your program?
Do you have any global static arrays?

Re: program too big for mem

stv6-Feb-03 17:24

stv

6-Feb-03 17:24

Well, i add a few clines for helps files in my project, and complie no problem, but when exe, the message appears

Any expert can solve this problem??? Cry | :((

btw,the system i used is p2 500mhz, os win2000 pro ram 256MB

thanks Hmmm | :|

Re: program too big for mem

Ted Ferenc6-Feb-03 7:46

Ted Ferenc

6-Feb-03 7:46

Are you using 98 with > 512MB of memory? I seem to remember a friend getting these error messages when he upgraded his PC. There is a "system feature" with 98. i.e. you can't have > 512MB of memory.

It is always worth trying the prog on another PC.

If I have seen further it is by standing on the shoulders of Giants. - Isaac Newton 1676

Encrypting technique for simple CString

Willem B6-Feb-03 4:29

Willem B

6-Feb-03 4:29

Does anyone know a good unique Encrypting technique to encrypt a string? or a article to read about it?

[]D [] []D []

Re: Encrypting technique for simple CString

C^hris L^osinger6-Feb-03 5:01

C^hris L^osinger

6-Feb-03 5:01

http://www.codeproject.com/cpp/#Cryptography

-c

Get there first with something patented, proprietary, and broken, then send lawyers after anyone who points out problems. --- Peter Gutmann

Fractals

Re: Encrypting technique for simple CString

Miguel Ortiz6-Feb-03 8:43

Miguel Ortiz

6-Feb-03 8:43

Hola Willem:

Yo tengo dos alternativas:
1. Uso
CString stFrase;
stFrase.Replace("e", " ");
...
//Esto reemplaza la letra "e" por un espacio, lo hago varias veces con varias letras y al final queda encriptado.
Nos vemos
Smile | :)

Saludos desde el Caribe Mexicano

CSplitterWnd is evil!

SomeUser6-Feb-03 3:47

SomeUser

6-Feb-03 3:47

Hi
I'm trying to create a CSplitterWnd within a CFrameWnd, but I have some problems with that... or MFC. I'm creating the CFrameWnd by calling the Create function, and passing a NULL to the pContext parameter because i don't know how to fill the CCreateContext with valid data.
But my problems starts in the OnCreateClient of the CFrameWnd, when i'm trying to create the CSplitterWnd.

Doing something like this:

<br />
BOOL CMyFrameWnd::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)<br />
{<br />
 <br />
 <br />
	m_MySplitterWnd.CreateStatic (this, 2, 1);<br />
<br />
  	m_MySplitterWnd.CreateView (0, 0, RUNTIME_CLASS(CMyView), CSize(100,100), pContext);<br />
	m_MySplitterWnd.CreateView (1, 0, RUNTIME_CLASS(CMyView), CSize(100,100), pContext);<br />
  <br />
<br />
	return TRUE;<br />
}<br />

As expected, the pContex is NULL and apparently i'm not allowed to call CreateView and pass NULL to the pContext. CreateView returns FALSE, and after that i'm getting a bunch of assertions and an access violation. So what am i supposed to do to get this to work?

Re: CSplitterWnd is evil!

Zdeslav Vojkovic6-Feb-03 5:54

Zdeslav Vojkovic

6-Feb-03 5:54

I guess you create frame wnd from parents OnCreate() method. If so, you should be able to obtain CCreateContext from LPCREATESTRUCT:

CCreateContext* pContext = (CCreateContext*)lpCreateStruct->lpCreateParams;

Re: CSplitterWnd is evil!

SomeUser6-Feb-03 7:03

SomeUser

6-Feb-03 7:03

Well, I'm doing a MDI app so that would work if I create the CFrameWnd from the MDI child window. But I want to create the window before any MDI child window i created... and the lpCreateStruct->lpCreateParams == NULL in the OnCreate() of the MainFrame for some reason. Any other idea? Smile | :)

Registry Reading with CRegKey

naradaji6-Feb-03 3:42

naradaji

6-Feb-03 3:42

Hi,
I'm using CRegKey to read a value from the registry. It's the name of the Citrix ICA Client:
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client
and the key is ClientName.

I use the following:

CRegKey regKey;<br />
			LONG Errr = regKey.Open(HKEY_LOCAL_MACHINE, "Software\\Citrix\\ICA Client", KEY_READ);<br />
			ASSERT(ERROR_SUCCESS == Errr);<br />
<br />
			CString csValue;<br />
			LPTSTR lpBuf = csValue.GetBufferSetLength(MAX_PATH);<br />
			ULONG length = MAX_PATH;<br />
			<br />
			Errr = regKey.QueryValue(lpBuf,"ClientName", &length);<br />
			ASSERT(ERROR_SUCCESS == Errr);<br />
<br />
			csValue.ReleaseBuffer();<br />
			MessageBox(csValue);

And the messagebox displays an empty string!
What am I doing wrong?

Thanks,

-- narada

Re: Registry Reading with CRegKey

naradaji6-Feb-03 4:04

naradaji

6-Feb-03 4:04

Forget about this, it works perfect!
I mistyped the name of the key!

Sorry!

-- naradaji

creating a grayscale "rainbow" in code

ns6-Feb-03 3:17

6-Feb-03 3:17

Basically I want a pointer to a bmp that has the graded shades of gray in it, and is to be of a certain number of rows and columns of pixels.

How do I generate such a pointer? Are there any links to creating a thing like this in code? I dont have the bmp already...I need to generate it in code.

Appreciate your help,
ns

Re: creating a grayscale "rainbow" in code

David Chamberlain6-Feb-03 10:18

David Chamberlain

6-Feb-03 10:18

I've had to do something similar to this, and it isn't too hard. (I'm recalling from memory here.) You need to look at creating a BITMAPINFO structure, with BITMAPINFOHEADER and color table. These define the dimensions in x and y, and specify your color depth, etc. If you use 8-bit depth and a palette, you can add a color table, which is an array of RGBQuad structures (defining the red, green, and blue components) and then each pixel in the bitmap has the value of the corresponding index into the color table.

If you use more than an 8-bit color depth, then each pixel is not an index to a color table, but the actual RGB triple. Then, allocate enough memory to hold the X-by-Y pixel data for the given color depth. Fill the allocated array with whatever pattern you want (rainbow, stripes, concentric circles, repetitive squares, etc), and you can fwrite the header and the contents of the array to a .bmp file.

It's not too different from creating a DIB in a memory DC. I can probably dig out some code samples if absolutely necessary, but this may be enough to help out (?).

Good luck,
Dave

"You can say that again." -- Dept. of Redundancy Dept.

Re: creating a grayscale "rainbow" in code

ns7-Feb-03 5:05

7-Feb-03 5:05

I followed the procedure you outlined and got it ! Many thanks! Looking at the output inb a hex editor helped debug

Appreciate your help,
ns

Re: Windows Service and MAPIInitialize()

6-Feb-03 3:08

Where in your program it is called?

Recurrence detection

RChin6-Feb-03 2:09

RChin

6-Feb-03 2:09

Just off the top of anyone's head.
Are there any clever standard method or algorithm to detect a recurring series of numbers?

One of the programs that I work on uses an iterative function, with the resulting number being fed back in, to reach a set solution. Trouble is that sometimes it gets into an infinite loop whereby it 'toggles' between one, two, possibly three series of numbers.

So, are there any standard (and rel. easy!) mathematical methods to 'detect' numerical 'bounces'?

what is the question?

6-Feb-03 2:34

Are you asking if there is a mathematical way to fix your program's logic?

Re: what is the question?

RChin6-Feb-03 3:43

RChin

6-Feb-03 3:43

Not really a fix.
Just seeing if there are more efficient and standard methods to test recurrance. Otherwise brute (but clever brute) force is necessary.

Re: what is the question?

AlexO6-Feb-03 4:08

AlexO

6-Feb-03 4:08

I do not know about math, but if I understood you correctly you are looking for
std::count_if or std::count

Prgramatic Control of Toolbar

Jawache6-Feb-03 1:51

Jawache

6-Feb-03 1:51

Hi,

I would like to control the toolbar (highlights and presses) by using the keyboard. (Left/Right and Enter).

I can do all the UI of it, but i would like to simulate a button press ( and have it call thre relevant function ) right now all that I can do it make it look like the button is being pressed. Any Ideas?

Cheers

Asim.

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

Re: Prgramatic Control of Toolbar

KarstenK6-Feb-03 2:23

KarstenK

6-Feb-03 2:23

There is a TB_PRESSBUTTON Message which should do the job. Cool | :cool:

Try this @ home. (B&B)

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