C / C++ / MFC Discussion Boards

messages3-Sep-06 8:12

3-Sep-06 8:12

Hi everyone,
I have again question I read about Certification from microsoft MCAD/MCSD
here[^] but i want to know
for which languages is it for VC++

Re: Certification

Waldermort3-Sep-06 8:19

Waldermort

3-Sep-06 8:19

You should read the full page, in particular the content of the exams. ASP.NET, VB.NET, C#.NET... Think of .NET as an extension to all of the programing languages.

Re: Certification

messages3-Sep-06 8:33

messages

3-Sep-06 8:33

Thanks waldermort for help i read full page but i cant find that VC is in these exams or not and i want to know do you have any document for VC like document for C# or ASP.NET

Error

messages3-Sep-06 8:04

messages

3-Sep-06 8:04

Hi everyone,
When i want to open my project i get this error
Project 'C:\MyBook\MyBook.vcproj' failed to open.
Thanks

Re: Error

Waldermort3-Sep-06 8:20

Waldermort

3-Sep-06 8:20

try deleting all of the extra files that VS adds to the directory. But make sure not to delete the .dsp and .dsw files.

Re: Error

messages3-Sep-06 8:33

messages

3-Sep-06 8:33

I dont have .dsp or .dsw i use VS2003 which files i need to delete

How to get a pointer of the active view?

yummi3-Sep-06 7:45

yummi

3-Sep-06 7:45

Hi,
I want to get the active childframe in a MDI application when I am in the ViewClass. I need a pointer of CWnd to use it as parameter for MDIActivate.

Can someone tell me how to get it?
Thanks for help
yummi

Re: How to get a pointer of the active view?

Nader Elshehabi3-Sep-06 12:11

Nader Elshehabi

3-Sep-06 12:11

Hello

1- CWnd::GetActiveWindow(). Doesn't it work with you?
2- Or even better CWnd::GetTopWindow().

Regards

Re: How to get a pointer of the active view?

yummi3-Sep-06 22:50

yummi

3-Sep-06 22:50

Hi Nader,
thanks for your reply. So I got the window, but I can't use it for what I want to do.
In my MDI application I open new childframes automaticly but I want to stay the actually childframe in front.
I tried this way:

CMDIFrameWnd *pFrame = (CMDIFrameWnd*)AfxGetApp()->m_pMainWnd;
// Get the active MDI child window.
CMDIChildWnd *pChild = (CMDIChildWnd *) pFrame->GetActiveFrame();

// Get the active view attached to the active MDI child window.
CErgebnislisteView *pView = (CErgebnislisteView *) pChild->GetActiveView();

//Open new childframes
for(i=0; i< arrVerz.GetSize(); i++)
{
            //set some variables and open it with the next line
    theApp.OnOldTurnier();
}

    //activate the old childframe

    pChild->SetActiveView(pView);      //nothing happens

Do you have an idea how do do it?
yummi

Re: How to get a pointer of the active view?

prasad_som4-Sep-06 0:34

prasad_som

4-Sep-06 0:34

yummi wrote:
CErgebnislisteView *pView = (CErgebnislisteView *) pChild->GetActiveView(); //Open new childframes for(i=0; i< arrVerz.GetSize(); i++) { //set some variables and open it with the next line theApp.OnOldTurnier(); } //activate the old childframe pChild->SetActiveView(pView); //nothing happens

pView is already active view. why you are setting it to active again. It must be working.

Prasad
Notifier using ATL

Re: How to get a pointer of the active view?

yummi4-Sep-06 0:43

yummi

4-Sep-06 0:43

Hi Prasad,

thanks for your reply. I want to reach, that after I opened a few new childframes, that the chilframe that was on top before I open the new ones, is on top again. With the line pChild->SetActiveView(pView) I tried to reach it.

grettings
yummi

I've got it :-)

yummi4-Sep-06 1:05

yummi

4-Sep-06 1:05

Hi Pasrad,

with your hint I find the solution. Thank you very much.
Before I open the new childframes I get the state of the childframe with

pChild->GetWindowPlacement(&lpwndpl);

and after I opened the new childframes I only do

pChild->SetWindowPlacement(&lpwndpl);

That works Big Grin | :-D

Many Many Thanks Rose | [Rose]

Re: I've got it :-)

prasad_som4-Sep-06 1:39

prasad_som

4-Sep-06 1:39

welcome.

yummi wrote:
Hi Pasrad

I hope,you want to say 'Prasad', Smile | :)

Prasad
Notifier using ATL

CFormView help needed

mkoliv3-Sep-06 6:39

mkoliv

3-Sep-06 6:39

Thanks

modified 28-Sep-16 7:30am.

Re: CFormView help needed

Gary R. Wheeler3-Sep-06 8:14

Gary R. Wheeler

3-Sep-06 8:14

You probably need to call ShowWindow for your controls after you create them.

Software Zen: delete this;

Fold With Us![^]

PlaySound with NULL

YaronNir3-Sep-06 5:30

YaronNir

3-Sep-06 5:30

Hi all,

i play a sound using:

PlaySound(MAKEINTRESOURCE(IDR_WAVE),AfxGetInstanceHandle(),SND_PURGE | SND_RESOURCE | SND_ASYNC);

i stop this sound using:

PlaySound(NULL,AfxGetInstanceHandle(),SND_PURGE | SND_RESOURCE | SND_ASYNC);

But when i call the above line again (PlaySound with NULL), the sound is being played again

is there a way to avoid this problem?

thanks

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

links appearance in the CRichEditCtrl

YaronNir3-Sep-06 5:23

YaronNir

3-Sep-06 5:23

Hi all,

all the links that appear in CRichEdit Ctrl are based on the window scheme i am using.
is there a way to tell the rich edit that all my link will apear in a blue color regardless the window scheme i am using?

thanks in advanced

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

operations in the cout<<

Ahmed Ismail Mohamed3-Sep-06 4:48

Ahmed Ismail Mohamed

3-Sep-06 4:48

int x = 4;
cout<< x+3;

i want to know what is the type of variable holds the expression x+3 in the cout statement.

******************
******************
** Ahmed Ismail **
******************
******************

Re: operations in the cout<<

toxcct3-Sep-06 5:22

toxcct

3-Sep-06 5:22

as both operands of the operator + are integers, the resulting variable is also an integer...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: operations in the cout<<

ahmed mega3-Sep-06 9:42

ahmed mega

3-Sep-06 9:42

I think that it's atemporary variable which made in the run time
from the type int to hold the output then it will be destroyed.

Re: operations in the cout<<

MIAN KAMRAN6-Sep-06 1:58

MIAN KAMRAN

6-Sep-06 1:58

it should be int but it is Compiler to decide wrt its Type Expressions

Audio playback in a Win32 Service

dubbaluga3-Sep-06 4:42

dubbaluga

3-Sep-06 4:42

Hello,

I' tried to develop a small application that's able to play MP3s in a windows service. My intention is to build a small media-player. The core of it shall run as a service and the communication between service and frontend is then some kind of IPC (not so important at the moment).

My question is, why applications like Winamp don't want to work as a background service. It only works, if I allow these applications to interact with my desktop. It even does not work, with fmod, that does not rely on a GUI:

===================================================
if (!FSOUND_Init(44100, 64, 0))
{
debug_stream = fopen("c:\\temp\\wmus.log", "w");
fprintf(debug_stream, "%s\n", FMOD_ErrorString(FSOUND_GetError()));
fclose(debug_stream);
exit(EXIT_FAILURE);
}
===================================================

This snippet always fails with "Error setting cooperative level for hardware." when started as a service (it works, when it's executed by a logged-in user) and I think, that this messages comes from DirectSound, since FMOD (http://www.fmod.org) relies on it.

Best regards and thanks for reading,
Rainer

Re: Audio playback in a Win32 Service

Gary R. Wheeler4-Sep-06 3:49

Gary R. Wheeler

4-Sep-06 3:49

I would guess the basic problem you're having is that, since sound is owned by the active desktop, you can't play sound from a service without letting that service interact with the desktop. The whole point of a service is to do work in the background without interacting with the user.

If the effect you are looking for is to have the player running 'in the background' without a main window, you can do that by making the main window a hidden one. You can then set a notification icon to interact with the application when you need to.

Software Zen: delete this;

Fold With Us![^]

Adding two large numbers

Waldermort3-Sep-06 3:14

Waldermort

3-Sep-06 3:14

This is the same with any data type, when 1 large number is added to another and the result is larger than the data type can hold, it wraps around. i.e.

ULONG size1 = 0xFFFFFF00;<br />
ULONG size2 = 0xFFFFFF00;<br />
size1 += size2; // == 0xFFFFFE00

The output is less than the input. I want to check for this problem and if it's there I would prefer the output to be the max value the data type can hold. What is the best way to approach this?

Re: Adding two large numbers

Ahmed Ismail Mohamed3-Sep-06 3:29

Ahmed Ismail Mohamed

3-Sep-06 3:29

waldermort wrote:
ULONG size1 = 0xFFFFFF00;
ULONG size2 = 0xFFFFFF00;

if you divede both size1 and size by a big number that make you sure that you can add and you still in the range of long.
size1 = size1/n;
size2 = size2/n;

waldermort wrote:
size1 += size2; // == 0xFFFFFE00

adding in this line will not make a problem

then finally, when you want to output the final value , make the value the program do it time the number you devide by it:
ex: textbox1.text = Tostring(size2 * n) // n is the number you devided by it.

I hope it work properly with you.
regards; Smile | :)

** Ahmed Ismail **

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