C / C++ / MFC Discussion Boards

Re: Letting a "select" call to be unblocked

JudyL_MD11-Jun-08 1:57

JudyL_MD

11-Jun-08 1:57

ilgale wrote:
how can I let the select call to be unblocked

You've answered your own question. You have to switch to non-blocking sockets and implement your own loop to get all the expected data. A socket can't be both blocking (for normal operation) and nonblocking (for program termination) - you must choose one.

Judy

Open file

john563210-Jun-08 20:15

john5632

10-Jun-08 20:15

Hi,

I am creating Explorer like application, how can I open file with corresponing application e.g open a msword file in msword, paint in mspaint etc...

Re: Open file

SandipG 10-Jun-08 20:20

SandipG

10-Jun-08 20:20

Use ShellExecute See here [^]

Regards,
Sandip.

Re: Open file

Rajesh R Subramanian10-Jun-08 20:21

Rajesh R Subramanian

10-Jun-08 20:21

Use ShellExecute() with "open". Any file will open with its associated program automatically.

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Re: Open file

Hamid_RT10-Jun-08 21:05

Hamid_RT

10-Jun-08 21:05

Like this question nisha00000 asked here [^]yesterday.

Re: Open file

Jagdish V. Bhimbha10-Jun-08 22:38

Jagdish V. Bhimbha

10-Jun-08 22:38

Hi...

Have look on this link :

http://www.developerfusion.co.uk/show/9/2/

Might thats what u want...

Good Luck... Rose | [Rose]

Jagdish Bhimbha
S/W Engineer

about directsound transfer and play back

doudou-shen10-Jun-08 19:45

doudou-shen

10-Jun-08 19:45

I got an example which can play back a wavefile with streaming buffer.now,I modify some lines for Lan chat. However I try my best ,It doesn't work. So wanna your help.

Well,First I simulate this situation that 2 men chat. Set same WaveFormatEx two point,and One Point Read a wavefile and Send data to
the other PC.

The other PC Receive quiet well,I use the data to playback(stream buffer mode) ,but It does't work. Nothing can be Heard.

what's wrong in my app?

Re: about directsound transfer and play back

Saurabh.Garg11-Jun-08 15:37

Saurabh.Garg

11-Jun-08 15:37

We don't have magicaly abilities to find out what is wrong with you code without looking at it. If you need help then post with more details about what exactly are you doing with small code snippets.

-Saurabh

Problem in closing a dialog MFC

hari_honey10-Jun-08 19:43

hari_honey

10-Jun-08 19:43

I am calling two new dialogs on two different button clicks in my first dialog.
For the first time it is executing correctly.
Once i close one dialog and open another it is givin Smile | :)

g system error and aborting the application.
Please tell me where it is going wrong.

Re: Problem in closing a dialog MFC

Hamid_RT10-Jun-08 19:47

Hamid_RT

10-Jun-08 19:47

How did you create dialog and how did you close it?

Re: Problem in closing a dialog MFC

SandipG 10-Jun-08 19:50

SandipG

10-Jun-08 19:50

Please paste your code snippet.

Regards,
Sandip.

Re: Problem in closing a dialog MFC

_AnsHUMAN_ 10-Jun-08 19:58

_AnsHUMAN_

10-Jun-08 19:58

You could be using some uninitialized variable in your code for the second time. Did you try and debug your code?

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

LNK2019 & LNK2001

T.RATHA KRISHNAN10-Jun-08 18:52

T.RATHA KRISHNAN

10-Jun-08 18:52

I've developed an application using Visual C++ 2005. This application showed me error at linking. The errors are:

HelloWorld.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) protected: virtual __thiscall dtABC::Application::~Application(void)" (__imp_??1Application@dtABC@@MAE@XZ) referenced in function __unwindfunclet$??0HelloWorld@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z$0

HelloWorld.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall dtABC::BaseABC::OnMessage(struct dtCore::Base::MessageData *)" (?OnMessage@BaseABC@dtABC@@MAEXPAUMessageData@Base@dtCore@@@Z)
HelloWorld.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall dtCore::Transformable::GetTransform(class dtCore::Transform &,enum dtCore::Transformable::CoordSysEnum)const " (?GetTransform@Transformable@dtCore@@UBEXAAVTransform@2@W4CoordSysEnum@12@@Z)
D:\HelloWorld1\Debug\HelloWorld1.exe : fatal error LNK1120: 54 unresolved externals

These are not defined by me. What to do?

Re: LNK2019 & LNK2001

Hamid_RT10-Jun-08 19:52

Hamid_RT

10-Jun-08 19:52

Did you link library to your application?

How can get total days of Month?

Le@rner10-Jun-08 18:24

Le@rner

10-Jun-08 18:24

Hi all,

How can i get the total Number of Days in a month?

how can check number of days in a month are 28,29,30,or 31?

Please help me for this.

Thanks in advance.

IN A DAY, WHEN YOU DON'T COME ACROSS ANY PROBLEMS - YOU CAN BE SURE THAT YOU ARE TRAVELLING IN A WRONG PATH

Re: How can get total days of Month?

Naveen10-Jun-08 18:40

Naveen

10-Jun-08 18:40

ThatsMe. wrote:
how can check number of days in a month are 28,29,30,or 31?

int GetNumberOfDays( int nYear, int nMonth )
{
    COleDateTime objDate;    
    int nDay = 29;
    
    for( ;nDay < 32; nDay++ )
    {
        objDate.SetDate( nYear, nMonth, nDay );
        if( objDate.GetStatus() == COleDateTime::invalid )
        {
            break;
        }
    }
    return --nDay;
}

nave

[OpenedFileFinder]

Re: How can get total days of Month?

_AnsHUMAN_ 10-Jun-08 19:00

_AnsHUMAN_

10-Jun-08 19:00

Wouldn't this always return 31?

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: How can get total days of Month?

Naveen10-Jun-08 19:10

Naveen

10-Jun-08 19:10

_AnShUmAn_ wrote:
Wouldn't this always return 31?

How? Can you explain?

nave

[OpenedFileFinder]

Re: How can get total days of Month? [modified]

_AnsHUMAN_ 10-Jun-08 19:14

_AnsHUMAN_

10-Jun-08 19:14

if( objDate.GetStatus() == COleDateTime::invalid ) fails for some reason so the function always returns 31. I recall seeing this code somewhere in MSDN (??? probably). Used it some time back.
[modified]A quick look at MSDN gives me this:If you call GetStatus on a COleDateTime object constructed with the default, it will return valid
Eg:The status of this is 2000, 2, 31 = valid ???

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

modified on Wednesday, June 11, 2008 1:21 AM

Re: How can get total days of Month?

Naveen10-Jun-08 19:24

Naveen

10-Jun-08 19:24

_AnShUmAn_ wrote:
If you call GetStatus on a COleDateTime object constructed with the default, it will return valid

But I am calling SetDate() after the construction of COleDateTime object. Suppose if you set a date as objDate.SetDate( 2008, 2, 30 ); The date will be invalid and if( objDate.GetStatus() == COleDateTime::invalid ) will return true.

nave

[OpenedFileFinder]

Re: How can get total days of Month?

_AnsHUMAN_ 10-Jun-08 19:28

_AnsHUMAN_

10-Jun-08 19:28

I just tried this bit of code and it always returns me 31. even the parameters to the function when passed as 2000,2 returns 31. ??? Any reasons. I modified my last post to include this.
BTW does this code execute as expected at your end.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: How can get total days of Month?

Naveen10-Jun-08 19:31

Naveen

10-Jun-08 19:31