C / C++ / MFC Discussion Boards

DavidNohejl6-Nov-04 6:11

6-Nov-04 6:11

like msdn.microsoft.com[^] ?

I would also recommend Petzold's book "Programming Windows".

btw Codeproject is good resource for Win32 programming, too.

best regards
David 'DNH' Nohejl

Never forget: "Stay kul and happy" (I.A.)

Annonying popping sound

Mathias S.6-Nov-04 3:03

Mathias S.

6-Nov-04 3:03

This drives me nuts

I open a dialog in its own GUI thread.
When I press a key the action that key should do is done. BUT I also get this
annoying popping sound like I pressed an illegal key. How do I stop that?

If I return TRUE when WM_KEYDOWN message is sent to PreTranslateMessage it stops BUT then the controller that is in the dialog does not work since it needs all the key messages.

/Mathias

Protecting text in a CRichEditCtrl

dlarkin776-Nov-04 2:22

dlarkin77

6-Nov-04 2:22

Hi,

I am hoping somebody can help mw with this problem I have:

I have a CRichEditCtrl in a dialog. I read some text in from a file. I check each line of the CRichEditCtrl to see if it contains a particular string. If the line doesn't contain the string the whole line should be disabled.

How exactly do i set the text to be protected?

Thanks

dlarkin77 Confused | :confused:

Re: Protecting text in a CRichEditCtrl

David Crow8-Nov-04 5:30

David Crow

8-Nov-04 5:30

How about a call to SetSelectionCharFormat()? Check out the CFE_PROTECTED effect.

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

Loading Image given parent handle

dharani6-Nov-04 0:26

dharani

6-Nov-04 0:26

Hi all

I have a dialog based application in which I am creating a dialog with CreateDialog() function . So I have only the HWND of the new dialog. I am yet to find the ways to Load an image into the new dialog for which I am having only the HWND . ( Most LoadImage () LoadBitmap() are meant for loading a bitmap or jpg image to the parent window -thats parent dialog only )
any ideas pls
regds
Dharani babu S

Re: Loading Image given parent handle

faroqtam6-Nov-04 12:31

faroqtam

6-Nov-04 12:31

Hi.
if the picture loaded on splash dialog or a temp Dialog
u can use BitBlit (API) function to draw image on any place
even though on disktop window.
if you does'nt know how to use it read the follwing.
BitBlt function as any bilting functions copy image from DC
(Device context) to anthoer DC
.
To draw image on your dialog you can use the follwing steps: -

1- creaet DC
HDC hdc=this->GetDC()->m_hDC;
/*this pointer to your dialog ,if u have only HWND of the dialog use*/
HDC hdc=::GetDC(dialoghwnd);

HDC temp_hdc=CreateCompatipleDC(0);
//2-load bitmap
HBITMAP hbmp=(HBITMAP)Loadimage(...);
//3-select it into temp DC
SelectObject(temp_hdc,hbmp);
//4-copy it into hdc using BitBlt
BitBlt(......);

if it is not help u im sorry

On Earth nothing impossible,
while your mind running.

Faroqtam

Re: Loading Image given parent handle

dharani7-Nov-04 17:16

dharani

7-Nov-04 17:16

Hi faroq
Greattttt!!!!!!! It worked well . I was bit doubtful about the top, left alignment of the bitmap . It jolly well took the HWND as the parent co ordinate. Thanks a lot
regds
Dharani Babu S

Re: Loading Image given parent handle

Anonymous7-Nov-04 17:57

Anonymous

7-Nov-04 17:57

It worked!!!!!!!Tnx a lot
Regds
Dharani

creating a random number with uniform distribution

seyirdefteri6-Nov-04 0:20

seyirdefteri

6-Nov-04 0:20

I am a computer engineering student and I am writing an elevator simulator. I have to write a random function which creates a random number with uniform distribution. can someone help me about my problem as early as possible.
About my work:
People have weight. this weight must be between 45 and 100. there is an avarage weight. Avarage number is given before the simulation starts.Person will get his/her weight randomly. random function must creates the person's weight with uniform distribution.
ex: avarage weight: 79
1.person's weight : 54 (Random)
2.person's weight : 86 (Random)
3.person's weight : 97 (Random)
avarage : 97

seyirdefteri

Re: creating a random number with uniform distribution

David Crow8-Nov-04 5:34

David Crow

8-Nov-04 5:34

See if either of these help:

http://mathworld.wolfram.com/RandomNumber.html
http://mathworld.wolfram.com/UniformDistribution.html

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

How to TRACE() in non-MFC apps?

kydfru5-Nov-04 23:15

kydfru

5-Nov-04 23:15

In MFC I can use TRACE macro to write output window.
How to do that in non MFC app?

Re: How to TRACE() in non-MFC apps?

Neville Franks5-Nov-04 23:38

Neville Franks

5-Nov-04 23:38

From memory there is a function named OutputDebugString() which will do this. Also have a look at AMLOG here on CP which I don't think uses MFC. There are lots of examples of logging code here on CP. I use AMLOG in Surfulater and am very pleased with it.

Neville Franks, Author of ED for Windows www.getsoft.com and Surfulater www.surfulater.com "Save what you Surf"

Re: How to TRACE() in non-MFC apps?

BlackDice6-Nov-04 2:53

BlackDice

6-Nov-04 2:53

Yeah, I found out about OutputDebugString() from a DirectX game programming book. I can't believe that I never saw that in any of the other beginner's books I used when I first started learning!

If I write code in my sleep, does that make me brilliant, or just a lazy programmer?

My articles

www.stillwaterexpress.com

BlackDice - the programmer formerly known as bdiamond

Thanks! that one works

kydfru6-Nov-04 5:42

kydfru

6-Nov-04 5:42

Thanks! that one works

Re: How to TRACE() in non-MFC apps?

peterchen6-Nov-04 4:46

peterchen

6-Nov-04 4:46

OutputDebugString always writes the traces, TRACE only in Debug builds.

If you are using ATL/WTL there is ATLTRACE.

we are here to help each other get through this thing, whatever it is Vonnegut jr.
boost your code || Fold With Us! || sighist | doxygen

how do you change your systray clock font / blackground colors with MFC program ?

ELY M.5-Nov-04 22:57

ELY M.

5-Nov-04 22:57

Id appericate some answer and sample code.

HWND hClock=NULL, hTaskbar, hNotify;

hTaskbar = FindWindowEx(NULL, NULL, _T("Shell_TrayWnd"), NULL);
if (hTaskbar) {
hNotify = FindWindowEx(hTaskbar, NULL, _T("TrayNotifyWnd"), NULL);
if (hNotify)
hClock = FindWindowEx(hNotify, NULL, _T("TrayClockWClass"), NULL);
}

if (hClock) {

???????

}

I need sample code

Thank you Big Grin | :-D

drawing a FFT in an dialogbased Project

Gie785-Nov-04 21:07

Gie78

5-Nov-04 21:07

Hi
I am a beginner in programming MFC. What is the best way to draw a FFT in a dialogbased project? I have heared about the MFC API for drawing but somebody told me it is not the best way, because I should update the screen every 100ms and he told me this method takes a lot of CPU time. Have anybody an idea how I can realize this on an easy way? Or have anybody an example?

thanks

Help : compile option

Anonymous5-Nov-04 19:51

Anonymous

5-Nov-04 19:51

What is the complie option and how i use it.

Re: Help : compile option

David Crow8-Nov-04 5:35

David Crow

8-Nov-04 5:35

Which compiler option are you interested in?

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

Help: mscorlib.dll & namespace

Anonymous5-Nov-04 19:49

Anonymous

5-Nov-04 19:49

When i use #using <mscorlib.dii>,why the VC++ error it can't manage.
When i use using namespace System;,why the vc++ error it tell namespace don,t exist.

Help me plase : complex number class

Anonymous5-Nov-04 19:44

Anonymous

5-Nov-04 19:44

I need to use complex number in my project,how i could to do?

Re: Help me plase : complex number class

Arsalan Malik5-Nov-04 22:41

Arsalan Malik

5-Nov-04 22:41

See MSDN

ARSALAN MALIK

about hook api with EAT

runner1115-Nov-04 19:43

runner111

5-Nov-04 19:43

I wanna hook api with EAT,who can give me a example? thx

Re: about hook api with EAT

Neville Franks5-Nov-04 23:41

Neville Franks

5-Nov-04 23:41

If I had any idea what you were talking about I maybe able to help. Confused | :confused:

Neville Franks, Author of ED for Windows www.getsoft.com and Surfulater www.surfulater.com "Save what you Surf"

Re: about hook api with EAT

ThatsAlok6-Nov-04 2:51

ThatsAlok

6-Nov-04 2:51

What iS EAT D'Oh! | :doh:

can anybody Explain

-----------------------------
"I Think It Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

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