C / C++ / MFC Discussion Boards

sachin ahuja12-Feb-07 21:26

12-Feb-07 21:26

Hi All
I am using one console application and using getche and getchar function in this application.
ch = getchar();
ch1 = getche();
I found that using getchar when I press enter I get value 10(LF) in ch.
and when I press enter for getche() function i get value 13(CR) in ch1.
Why am I not getting the same value in both function?
When enter is pressed then two values are passed.that are 10(LF) and 13(CR).
So value of ch1 must also be 10 in place of 13.
Can anyone help me why I am getting different values in both functions.

Thanks in advance
BR
Sachin Ahuja

Re: Getchar and getche problem

kasturi_haribabu12-Feb-07 21:50

kasturi_haribabu

12-Feb-07 21:50

Are you using both the function calls in a sequence? i mean one statement after the other?
if Yes,
Pressing "Enter" button does mean you are entering \r\n together into the stdin(keyboard)
buffer.The first getchar() is returning the "\r". and the second getche() is returning
the "\n" .

can you test using getchar() once in your function and then, replace the getchar() with getche()
and then verify result?

regards,
haribabu

Re: Getchar and getche problem

sachin ahuja13-Feb-07 16:46

sachin ahuja

13-Feb-07 16:46

Hi
I have tried replacing getchar with getche in the function, but I am getting the same problem yet.
Also I am not using getchar and getche in sequence.
Rather I am using them in different functions.
Please reply if you find some solution.

Thanks
Sachin Ahuja

Zip/Unzip from VC++ using zip32.dll/unzip32.dll

prabhudurai12-Feb-07 21:09

prabhudurai

12-Feb-07 21:09

I need to do the Zip/Unzip using the Unzip32.dll & Zip32.dll from VC++ SDK/MFC
Any one can suggest ideas..

Regards,
Prabhu

PRABHDURAI

Re: Zip/Unzip from VC++ using zip32.dll/unzip32.dll

Programm3r12-Feb-07 22:27

Programm3r

12-Feb-07 22:27

Hi,

I know that this is in VB, but if you know abit about VB, you will be able to figure this one out. It is a complete example on how to do it. I really hope this might help you.

http://www.codeguru.com/vb/gen/vb_graphics/fileformats/article.php/c6743[See Here^]

Regards,

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Setting Threading Model in VC++

AbbyIndian12-Feb-07 21:01

AbbyIndian

12-Feb-07 21:01

Hi..

I am creating an ActiveX control..and I have to set the Threading Model to both
'afxRegApartmentThreading' and 'afxRegFreeThreading' in the function
'AfxOleRegisterControlClass' in VC++ 6.0

But, the compiler gives an error...."'afxRegFreeThreading' : undeclared identifier"...

I have checked in MSDN...this 'afxRegFreeThreading' is a valid parameter..

Whats wrong here?

...A Programmer may or may not be the master of the programming language grammar...

multithreading

neha.agarwal2712-Feb-07 20:09

neha.agarwal27

12-Feb-07 20:09

Hi All,

Actually i have made a worker thread n i want that thread should execute 2 times simultaneosly if a button is pressed. Only the thing i knw is multi-threading will be used...

How to do it?

I have done very basic progmming in threads
Can anybody help me in this.

thanxs in advance

Re: multithreading

kasturi_haribabu12-Feb-07 21:19

kasturi_haribabu

12-Feb-07 21:19

Answer to your question :
Create the two threads by calling Afx begin thread twice.

Note before :
1. Both the threads should not share any data / resources.
2. if they share, its quite not possible to run them simultaneously(you can use synchronising techniques, but you will loose the "simultaneous" effect.)

regards,
haribabu

Re: multithreading

Suresh H12-Feb-07 22:02

Suresh H

12-Feb-07 22:02

Hi Neha,

Here is the example of multi threading

{
HANDLE hr;
hr = CreateThread(NULL,0,(unsigned long (__stdcall *)(void *))WorkerThreadProc,param list,0,0);

}

//Thread function for starting 2 process.
UINT WorkerThreadProc(LPVOID Param)
{
// Process

}

How to get the format of users local date and time?

Hemant kulkarni12-Feb-07 19:55

Hemant kulkarni

12-Feb-07 19:55

Hi,

In my one application I ma having a MFC CDateTimeCtrl control. The requirement is that, the format of date and time of this control and the users local date and time should be same. Means if users format is 24hr clock my control should also display the time in 24hr format. I have following two questions regarding this.

1] How I can know that user changed the format of his time? (I can find the time change by ON_WM_TIMECHANGE message but what if user changed only format and not the time?)

2] How to get the current format of users local date and time?

Regards,
Hemant kulkarni

Re: How to get the format of users local date and time?

kasturi_haribabu12-Feb-07 21:35

kasturi_haribabu

12-Feb-07 21:35

consider using COleDateTime.

COleDateTime::Format

CString Format( DWORD dwFlags = 0, LCID lcid = LANG_USER_DEFAULT );

haribabu

Hardware detection in VC++

Karismatic12-Feb-07 19:49

Karismatic

12-Feb-07 19:49

I want to devlop a project in VC++ through which i can get list of all hardware's
drivers & components as mike,monitor,printer,fax... list that is connected with that perticular system.I don't have much idea about this,but i worked on VC++.
So if somebody send me some dummy project on this or any link,plz forward me as soon as possible.

Thanks & Regards
Pankaj

Re: Hardware detection in VC++

Hamid_RT12-Feb-07 20:00

Hamid_RT

12-Feb-07 20:00

See
System Information[^]
WMI C++ Application Examples[^]
System Information Functions[^]
Operating System Classes[^]
WMI Classes[^]

WhiteSky

Editing in CListCtrl

Hadi Dayvary12-Feb-07 19:39

Hadi Dayvary

12-Feb-07 19:39

Hi I wanted to make CListCtrl editabe :

void CTestListCtrlDlg::OnDblclkList(NMHDR* pNMHDR, LRESULT* pResult) 
{
    POSITION pos = m_ctlList.GetFirstSelectedItemPosition();
    m_ctlList.EditLabel(m_ctlList.GetNextSelectedItem(pos));
    *pResult = 0;
}
void CTestListCtrlDlg::OnEndlabeleditList(NMHDR* pNMHDR, LRESULT* pResult) 
{
    LV_DISPINFO* pDispInfo = (LV_DISPINFO*)pNMHDR;
    if(pDispInfo->item.mask == 1)
        m_ctlList.SetItemText(pDispInfo->item.iItem, pDispInfo->item.iSubItem, pDispInfo->item.pszText);
    *pResult = 0;
}

Everything is ok but after double click the edit box is placed at the first column in the selected row (but not selected column)! but I want it in user selected column.
Please help

Re: Editing in CListCtrl

Mark Salsbery13-Feb-07 7:28

Mark Salsbery

13-Feb-07 7:28

I believe the listview control only provides built-in functionality for editing the label
(the column with the icon in report view).

Problem with CString Datatype

Vichitram12-Feb-07 19:20

Vichitram

12-Feb-07 19:20

Hi
I have to work with a MFC based application for File Transfer in VC++. I used CString and CSocket Datatypes. But they are not accessible. Compilation error is the result. I am using VC 6.0.

These are the errors...
'CString' : undeclared identifier
'CSocket' : undeclared identifier

No explicit classes were used by me. These Datatypes were used within a function. Whether this will cause any error?.

From some site I got information to include a header file afxsocket.h and call AfxSocketInit(NULL) on init() function. That also caused me with 2 more errors as; afxsocket.h cannot be opened and that AfxSocketInit(NULL) is an undeclared identifier. So I removed that.

pls tell me. what is the requirement?. Why does this happen?.

Regards and Thanks...

Re: Problem with CString Datatype

prasad_som12-Feb-07 19:26

prasad_som

12-Feb-07 19:26

What type of project option you have selected while creating it ?It should be, "MFC AppWizard".

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Problem with CString Datatype

Vichitram12-Feb-07 19:30

Vichitram

12-Feb-07 19:30

Yes. I selected MFC AppWizard(exe) option only.

Re: Problem with CString Datatype

prasad_som12-Feb-07 19:37

prasad_som

12-Feb-07 19:37

For CSocket afxsock.h need to be included.
But there should not be any error for CString. As its declared in afx.h and included by afxwin.h.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Problem with CString Datatype

ShilpiP12-Feb-07 19:35

ShilpiP

12-Feb-07 19:35

If u are using MFC based appliction than i dont think so that error occur...but u may include Afx.h & AfxSock.h...may be it will work

Yes U Can ...If U Can ,Dream it , U can do it ...ICAN

Re: Problem with CString Datatype

Hamid_RT12-Feb-07 19:35

Hamid_RT

12-Feb-07 19:35

Did you inlcude afxsock.h