C / C++ / MFC

how can i send midi data to the usb???

29-Dec-04 2:29

Any reason why you are not using a CListCtrl object for this?

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

namaskaaram28-Dec-04 23:25

namaskaaram

28-Dec-04 23:25

i would like to know how to send midi data to the usb using windows midi driver???i have already sent this midi data to the midi sw synth(default of window midi player),how can i route it to the usb driver???i am not supposed to make my own driver but use the already existing windows drivers!!!!!.....
please help..... Confused | :confused:

how to get

vc-programmer-28-Dec-04 22:58

vc-programmer-

28-Dec-04 22:58

how to get list of ip address in my entire network.
i want to know list of all ip address of my entire network.
how can i get??
pls explain me..
some sample and refrence.pls give me..

Re: how to get

David Crow29-Dec-04 2:32

29-Dec-04 2:32

Are you referring to NetServerEnum(), or the WNetOpenEnum()/WNetEnumResource() pair? Once you have the name of the resource, simply call gethostbyname() to get its IP address.

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

Re: how to get

vc-programmer-30-Dec-04 16:35

vc-programmer-

30-Dec-04 16:35

can i get both computer and input device(com port).
now i get only computer ip address.
i want to get com port ip address.

Re: how to get

David Crow3-Jan-05 1:56

Beep sound of the application.

3-Jan-05 1:56

vc-programmer- wrote:
i want to get com port ip address.

I was not aware that COM ports had IP addresses.

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

Error 2660

Mithilaa28-Dec-04 20:01

Mithilaa

28-Dec-04 20:01

Hi,
When i'm using this code in my file,
if(!(OpenPort(portname)))
MessageBox("Cannot open Communication Port.Please\nquit the application & re-start your PC.","Error",MB_OK+MB_ICONERROR);

Following error has occured:
Messagebox function doesnot take 3 parameters.

Is there any need to include header file, or whats the error.?

Pls help.

Mithila

Re: Error 2660

PJ Arends28-Dec-04 20:55

PJ Arends

28-Dec-04 20:55

You are calling the global message box. It requires the first parameter to be an HWND of the owner window or NULL if the message box has no owner window.

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Neelesh K J Jain28-Dec-04 19:54

Neelesh K J Jain

28-Dec-04 19:54

Hello Friends,

Whenever my application is starting it is giving a beep sound which I don't require it. please help me regarding this problem. I am present the code which I am having in InitInstance() of App class.

BOOL CMMTRansApp::InitInstance()
{
AfxEnableControlContainer();

AfxInitRichEdit();
// Standard initialization
// If you are not using these features and wish to reduce the size
// of your final executable, you should remove from the following
// the specific initialization routines you do not need.

#ifdef _AFXDLL
Enable3dControls(); // Call this when using MFC in a shared DLL
#else
Enable3dControlsStatic(); // Call this when linking to MFC statically
#endif

// Change the registry key under which our settings are stored.
// TODO: You should modify this string to be something appropriate
// such as the name of your company or organization.
SetRegistryKey(_T("Local AppWizard-Generated Applications"));

LoadStdProfileSettings(); // Load standard INI file options (including MRU)

// Register the application's document templates. Document templates
// serve as the connection between documents, frame windows and views.

CSingleDocTemplate* pDocTemplate;
pDocTemplate = new CSingleDocTemplate(
IDR_MMTRANS_MENU,
RUNTIME_CLASS(CMMTRansDoc),
RUNTIME_CLASS(CMainFrame), // main SDI frame window
RUNTIME_CLASS(CMMTRansView));
AddDocTemplate(pDocTemplate);

// Parse command line for standard shell commands, DDE, file open
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);

// Dispatch commands specified on the command line
//AfxMessageBox("Test");
if (!ProcessShellCommand(cmdInfo))
return FALSE;

//AfxMessageBox("Test1");
// The one and only window has been initialized, so show and update it.

m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED);
// Setting the window title
((CMainFrame*)AfxGetMainWnd())->SetWindowTitle();
......
}

When I debugged I got known that the beep is coming when ProcessShellCommand(cmdInfo) condition is checked. But when I am having other applications it is not giving me the beep sound. So I want to solve this beep sound problem in my actual application.

Thanks in Advance.

Neelesh K J Jain.

Re: Beep sound of the application.

David Crow29-Dec-04 2:41

Where is the problem ? please help...

29-Dec-04 2:41

Neelesh K J Jain wrote:
When I debugged I got known that the beep is coming when ProcessShellCommand(cmdInfo)...

So have you stepped into it to see what code is causing the beep?

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

pc_dev28-Dec-04 19:07

28-Dec-04 19:07

I am building an application with embeded property pages in a dialog (CDialog)

Here is how i have done it;
Following code is in the OnInitDialog

m_PSheet=new CPropertySheet("Hello"); // Hello appears no where

// Adding two property pages CPropertyPage

m_PSheet->AddPage(&m_p1);
m_PSheet->AddPage(&m_p2);

//Modeless

m_PSheet->Create(this,WS_CHILD,NULL);
m_PSheet->ShowWindow(TRUE);

Each propertypage contains a button which simply displays Message from Page 1
or page2.

Both pages work absolutely fine as long there is no control on main dialog but if i add a button on main dialog; then pressing button on property pages losts the program (Hangs); the button on main dialog works fine;

I want all controls on property pages and as well as on main dialog working.

Please help;

Aamir Butt28-Dec-04 19:37

Aamir Butt

28-Dec-04 19:37

What I did for adding a CPropertySheet on a dialog is that first of all I added a Picture control on the dialog which was of the same size as that of the property sheet. I named that picture control as IDC_PROPSHEET and then I added a member variable named m_dlgPropSheet of the type of CPropertySheet. Then in OnInitDialog i did the following steps, after adding pages in Sheet.

m_dlgPropSheet.Create(this,WS_CHILD|WS_VISIBLE,0);
m_dlgPropSheet.ModifyStyleEx(0,WS_EX_CONTROLPARENT);
m_dlgPropSheet.ModifyStyle( 0, WS_TABSTOP );

CRect rcSheet;
GetDlgItem(IDC_PROPSHEET)->GetWindowRect(&rcSheet);
ScreenToClient( &rcSheet );
m_dlgPropSheet.SetWindowPos(NULL,rcSheet.left-7, rcSheet.top-7, 0, 0,SWP_NOZORDER|SWP_NOSIZE|SWP_NOACTIVATE );

Try doing this, Hope it would help.

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pc_dev28-Dec-04 21:33

28-Dec-04 21:33

Thank u very much ur code has solved my problem, Rose | [Rose]

Infact the difference between ur and my code is of the following two lines,
adding them in my code has solved my problem; I have not changed my remaining code.

m_PSheet.ModifyStyleEx(0,WS_EX_CONTROLPARENT);
m_PSheet.ModifyStyle( 0, WS_TABSTOP );

According to MSDN.

WS_EX_CONTROLPARENT Allows the user to navigate among the child windows of the window by using the TAB key

How simply changing style to WS_EX_CONTROLPARENT solved it ? please desribe.

Aamir Butt28-Dec-04 22:24

Aamir Butt

28-Dec-04 22:24

You are right. I used Picture control just for sizing it properly at my required position.

AFAIK, WS_EX_CONTROLPARENT enables a control to be controlled by the parent. Since there is not a direct method to add CPropertySheet directly over a CDialog, therefore, I guess, we need to do this through this approach. I am not sure about its exact reason myself.

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pc_dev28-Dec-04 21:57

28-Dec-04 21:57

One thing more;

I think u have used Picture control only for sizeing, and it has nothing to do with real problem.

Member 30761228-Dec-04 19:40

Member 307612

28-Dec-04 19:40

Obviously you are missing the PSheet point - it is not to be used in Dialog (at least normally). PSheet was designed to be used on itself only, providing general dialog with pages - I guess this is the reason you have problems. If you want to have dialog with pages among other controls, you will have to add it manually by adding tab control and managing tab switches yourself.
I do have a class for this, if someone would be interested I could try to make an article on CP on with it.

Igor Green
http://www.grigsoft.com
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pc_dev28-Dec-04 21:43

28-Dec-04 21:43

Thanks for reply Rose | [Rose]

I was also thinking that property pages are not working because of CDialog; but surprisingly they have. If u have time then please look the above solution provided by "Amir Butt" simply by changing style to "WS_EX_CONTROLPARENT" solved the problem; i.e. embeded propertypages in a dialog where as controls on pages and dialog are working fine.

If u know what magic WS_EX_CONTROLPARENT has done then please describe.

I could try to make an article on CP on with it.

That will be a great greatness.

ThatsAlok28-Dec-04 21:04

28-Dec-04 21:04

This Api Will Help you

DWORD GetModuleFileName(
  HMODULE hModule,    // handle to module
  LPTSTR lpFilename,  // path buffer
  DWORD nSize         // size of buffer
);

pass HWND to First parameter.

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

Gary R. Wheeler29-Dec-04 1:17

29-Dec-04 1:17

That won't work. The first parameter is a module handle (an HMODULE), not a window handle (an HWND).

Software Zen: delete this;

ThatsAlok29-Dec-04 1:42

29-Dec-04 1:42

With All Due Respect

we Can Type Cast HMODULE with HWND

like

HWND hWnd=this->m_hWnd;
char Filename[200];
GetModuleFileName((HMODULE)hWnd,Filename,199);

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

Gary R. Wheeler29-Dec-04 2:09

29-Dec-04 2:09

That doesn't change the fact that the underlying object for an HMODULE is a module, and an HWND is a window. If you can get away with the type cast, and Windows returns useful information, that's fine. I wouldn't rely on this working in the future, however. This would be an undocumented behavior for the GetModuleFileName API function.

Why not use the correct function: GetWindowModuleFileName()[^]

Software Zen: delete this;

ThatsAlok29-Dec-04 2:56

29-Dec-04 2:56

Sir,With All Due respect,
Correct me if i am wrong

Both HWND and HMODULE are 32 bit Unsigned Long or DWORD

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

Gary R. Wheeler29-Dec-04 4:27

29-Dec-04 4:27

That's true. In Windows, a handle is a token that is used by to identify a specific object. An HWND therefore identifies a window, while an HMODULE identifies a module. When you pass an HWND when Windows expects an HMODULE, it will attempt to use a window handle to identify a module.

For example, let's suppose that handles are implemented as an index within an array. An HWND with the value of 11 would therefore specify the 11th window in the system. An HMODULE with the value of 11 would specify the 11th module in the system. The two aren't related, and you aren't going to get the results you want.

There's an even more obvious example. Suppose that handles are implemented as pointers to a structure. An HWND would therefore point to a structure that defines a window, while an HMODULE would point to a structure for a module. Passing one for the other would obviously have poor results.

While Window handles aren't implemented this way (as far as I know), you should treat them as opaque entities. This implies that, if an API function calls for a handle of a given type, you will only get the expected behavior if you pass a valid handle of that type. If you use a type cast to force the call to receive a handle of another type, then the results are unpredictable.

Software Zen: delete this;

ThatsAlok29-Dec-04 17:02

29-Dec-04 17:02

Yeah Thanks Sir,
Now i understand Difference Between TWO.

Thanks Again

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

Gary R. Wheeler29-Dec-04 1:22