About InstallWinIoDriver function of WinIo.dll - C / C++ / MFC Discussion Boards

Member 1060570217-Mar-14 6:43

17-Mar-14 6:43

I am getting the following error on the following code:

Note: including file: g:\src\shared\inc\citrix\icaid.h
114>g:\src\inc\engtypes.h(49): warning C4091: 'typedef ' : ignored on left of 'char' when no variable is declared [g:\src\pal\ctxdvc\msbuild.ctxdvc.proj]
Adding to warn data CtxMSBuild.utility.DependencyData
114>g:\src\inc\engtypes.h(49): error C2143: syntax error : missing ';' before 'constant' [g:\src\pal\ctxdvc\msbuild.ctxdvc.proj]
114>g:\src\inc\engtypes.h(49): error C2059: syntax error : 'constant' [g:\src\pal\ctxdvc\msbuild.ctxdvc.proj]

<pre lang="c++">
typedef CHAR DOSFILENAME [ DOSFILENAME_LENGTH + 1 ];
typedef CHAR DESCRIPTION [ DESCRIPTION_LENGTH + 1 ];
typedef CHAR FRIENDLYNAME [ FRIENDLYNAME_LENGTH + 1 ];
typedef CHAR VERYLARGENAME [ VERYLARGENAME_LENGTH + 1 ];
typedef CHAR PROGRAMGROUP [ PROGRAMGROUP_LENGTH + 1 ];
typedef CHAR NAMEENUMERATOR [ NAMEENUMERATOR_LENGTH + 1 ];
typedef CHAR NAMERESOLVER [ NAMERESOLVER_LENGTH + 1 ];
typedef CHAR TRANSPORTNAME [ TRANSPORTNAME_LENGTH + 1 ];
typedef CHAR ENCRYPTIONLEVEL [ ENCRYPTIONLEVEL_LENGTH + 1 ];
typedef CHAR EMULATIONNAME [ EMULATIONNAME_LENGTH + 1 ];
typedef CHAR CLIENTNAME [ CLIENTNAME_LENGTH + 1 ];
typedef CHAR CLIENTSN [ CLIENTSN_LENGTH + 1 ];
typedef CHAR DOMAIN [ DOMAIN_LENGTH + 1 ];
typedef CHAR USERNAME [ USERNAME_LENGTH + 1 ];
typedef CHAR PASSWORD [ PASSWORD_LENGTH + 1 ];
typedef CHAR ENCRYPTEDPASSWORD[ ENCRYPTEDPASSWORD_LENGTH + 1 ];
typedef CHAR DIRECTORY [ DIRECTORY_LENGTH + 1 ];
typedef CHAR INITIALPROGRAM [ INITIALPROGRAM_LENGTH + 1 ];
typedef CHAR ADDRESS [ ADDRESS_LENGTH + 1 ];
typedef CHAR DEVICENAME [ DEVICENAME_LENGTH + 1 ];
typedef CHAR BAUD [ BAUD_LENGTH + 1 ];
typedef CHAR MODEM [ MODEM_LENGTH + 1 ];
typedef CHAR MODEMINIT [ MODEMINIT_LENGTH + 1 ];
typedef CHAR MODEMINITSTRING [ MODEMINITSTRING_LENGTH + 1 ];
typedef CHAR KEYBOARDLAYOUT [ KEYBOARDLAYOUT_LENGTH + 1 ];
typedef CHAR KEYBOARDTYPE [ KEYBOARDTYPE_LENGTH + 1 ];
typedef CHAR HOTKEYNAME [ HOTKEYNAME_LENGTH + 1 ];
typedef CHAR DIALINGLOCATION [ DIALINGLOCATION_LENGTH + 1 ];
typedef CHAR DIALINGPREFIX [ DIALINGPREFIX_LENGTH + 1 ];
typedef CHAR DIALPROPENTRY [ DIALPROPENTRY_LENGTH + 1 ];
typedef CHAR DIALCOUNTRY [ DIALCOUNTRY_LENGTH + 1 ];
typedef CHAR FILEPATH [ FILEPATH_LENGTH + 1 ];
</pre>

The line it is actually complaining about is typedef for DOMAIN. I have checked and DOMAIN_LENGTH is defined in a header file that is included by the header file with the above code. So is CLIENTSN_LENGTH.

Also it of interest to note that this code would compile under VS2008 and I am attempting to compile it with 2013.

Re: Syntax Error

Richard Andrew x6417-Mar-14 9:09

Richard Andrew x64

17-Mar-14 9:09

Comment out the line with DOMAIN, and see if the error goes away. If not, then keep commenting out lines until you narrow it down.

The difficult we do right away...
...the impossible takes slightly longer.

Re: Syntax Error

Member 1060570217-Mar-14 10:09

Member 10605702

17-Mar-14 10:09

If I comment out that line, then the error does go away.

Re: Syntax Error

Albert Holguin17-Mar-14 12:31

Albert Holguin

17-Mar-14 12:31

That specific error goes away or it compiles all the way through without errors? ...because if it compiles all the way without errors, then that is where the error is, if it just gives you a different error, then it may still be the original error, it may just be that the error message is misguiding you.

Re: Syntax Error

Albert Holguin17-Mar-14 12:34

Albert Holguin

17-Mar-14 12:34

Make sure you're not conflicted in the namespace. All capital definitions are used for macros a lot, so you may be conflicting with a macro. Rename your type and length variable to something else and see if it clears the problem.

Re: Syntax Error

Member 1060570218-Mar-14 2:37

Member 10605702

18-Mar-14 2:37

Thanks everyone for the help. I did turn out to be a macro conflict.

Re: Syntax Error

Albert Holguin18-Mar-14 5:03

Albert Holguin

18-Mar-14 5:03

Don't forget to upvote... Wink | ;)

I would say to also accept the answer but I'm even sure if you can accept a solution in the forums. D'Oh! | :doh:

In any case, glad you found your issue. I would also consider changing those from all caps since it is the common way of labeling macros, although since you're aware of the possible issue, you should know to hold that suspect in the future.

About InstallWinIoDriver function of WinIo.dll

cedricvictor17-Mar-14 3:38

cedricvictor

17-Mar-14 3:38

Dear all:

I use winIo.dll with my project, when I call InstallWinIoDriver function, it always return false, but my application still work,
What happened? There are source code below

C++

bool _stdcall InstallWinIoDriver(PWSTR pszWinIoDriverPath, bool IsDemandLoaded)
{
    SC_HANDLE hSCManager;
    SC_HANDLE hService;
    // Remove any previous instance of the driver
    RemoveWinIoDriver();
    
    hSCManager = OpenSCManager(NULL, NULL,     
    SC_MANAGER_ALL_ACCESS);
    
    if(hSCManager)
    {
     // Install the driver
     hService = CreateService(hSCManager, L"WINIO", L"WINIO",   
     SERVICE_ALL_ACCESS, SERVICE_KERNEL_DRIVER, (IsDemandLoaded  
     == true) ? SERVICE_DEMAND_START : SERVICE_SYSTEM_START, 
     SERVICE_ERROR_NORMAL, pszWinIoDriverPath, NULL, NULL, NULL, 
     NULL, NULL);
	
      CloseServiceHandle(hSCManager);
     if(hService == NULL)
        return false;                   //strange 
    }
    else
        return false;                  //strange
        CloseServiceHandle(hService);  //strange
        return true;                   //strange
}

Thanks for your help, Victor

Re: About InstallWinIoDriver function of WinIo.dll

Gisle Vanem17-Mar-14 3:46

Gisle Vanem

17-Mar-14 3:46

I have no idea really. But it's always useful to have some trace-code that prints the result of GetLastError() and FormatMessage(). Something like:

<br />
        <small>MY_TRACE (("CreateService() failed; %s\n", my_strerror(GetLastError())));</small><br />

-- Gisle V.

Re: About InstallWinIoDriver function of WinIo.dll

Randor 17-Mar-14 9:31

Randor

17-Mar-14 9:31

Hmmm,

Could be that the CreateService function[^] is returning either ERROR_DUPLICATE_SERVICE_NAME or maybe ERROR_SERVICE_EXISTS.

As previously stated GetLastError[^] is your friend.

cedricvictor wrote:
but my application still work,

Keep in mind that if you do not have source code for winIo.dll ... it could also be installing the service.

Best Wishes,
-David Delaune

Re: About InstallWinIoDriver function of WinIo.dll

cedricvictor18-Mar-14 2:30

cedricvictor

18-Mar-14 2:30

Dear Randor:

You are right. In other function, the service is exist.

So the function always return false.

Thank for your help, Victor

Visual c++ 6 freeware ?

KrishnaRayalu_Talisetti16-Mar-14 21:07

KrishnaRayalu_Talisetti

16-Mar-14 21:07

Hi friends & Gurus,

May i know is visual c++ 6 is free downloadable / freeware ?
Please update me the details.

Thanks & Regards,
TV Krishna Rayalu

Re: Visual c++ 6 freeware ?

CPallini16-Mar-14 22:25

CPallini

16-Mar-14 22:25

It is neither freeware nor downlodable.

Veni, vidi, vici.

Re: Visual c++ 6 freeware ?

KrishnaRayalu_Talisetti16-Mar-14 23:45

KrishnaRayalu_Talisetti

16-Mar-14 23:45

Thank you. But VB 6 is freeware it seems. correct me if iam wrong.

Re: Visual c++ 6 freeware ?

CPallini16-Mar-14 23:54

CPallini

16-Mar-14 23:54

As far as I know VB6 is NOT free.

Veni, vidi, vici.

Re: Visual c++ 6 freeware ?

Jochen Arndt16-Mar-14 22:32

Jochen Arndt

16-Mar-14 22:32

VC6 is not free. There were special versions for publication on media of C/C++ books. So you might get such a book to get the special VC6 version for non-commercial purposes (compiled programs will show a message at each start).

But VC 6 is outdated. There is no reason to use it anymore.

If you are looking for a free Visual Studio version, you can download the Express versions from Microsoft at http://www.visualstudio.com/downloads/download-visual-studio-vs[^].

Re: Visual c++ 6 freeware ?

KrishnaRayalu_Talisetti16-Mar-14 23:48

KrishnaRayalu_Talisetti

16-Mar-14 23:48

Thank you Jochen, i need it for commercial purpose. It is for very old Visualstudio 6 project maintenence purpose i required vc++6.

Re: Visual c++ 6 freeware ?

Jochen Arndt17-Mar-14 0:04

Jochen Arndt

17-Mar-14 0:04

If you don't want to convert the project to a newer VC version (which may be difficult), you can look for a used version. But note that those may not include the latest service packs (SP5 from 2003 and SP6 from 2004).

Re: Visual c++ 6 freeware ?

KrishnaRayalu_Talisetti17-Mar-14 0:46

KrishnaRayalu_Talisetti

17-Mar-14 0:46

Thanks for the precautions i need to take , if it need to be upgrade.
But as of now it is just support work.

Re: Visual c++ 6 freeware ?

Albert Holguin17-Mar-14 12:37

Albert Holguin

17-Mar-14 12:37

When I've had to use really old versions of something... I've gone to ebay and looked there. The other way would be if you have an MSDN subscription, since MS usually makes all versions of their IDEs available to developers to download through there, but a subscription is pricey to begin with (you'll likely find it cheaper through some third party online).

MFC CreateCompatibleDC(), Drawtext() no display [Solved]

econy16-Mar-14 16:23

econy

16-Mar-14 16:23

In OnTimer, I write a test program. if I don't use CreateCompatibleDC(), It works well, otherwise, no display.
Please help me to find the reason.

C++

void CDynamicShowTextDlg::OnTimer(UINT nIDEvent)
{ 
    CDC *pDC; 
    CRect tRect;
    CDC   MemDC; 

    pDC = this->GetDC();	
    GetClientRect(&tRect);
    MemDC.CreateCompatibleDC(NULL); 
    MemDC.SetBkMode(TRANSPARENT);
    if (test == 0 ){
	MemDC.SetTextColor(RGB(255,255,255));
	MemDC.DrawText(_T("My Test"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
	MemDC.SetTextColor(RGB(255,0,0));
	MemDC.DrawText(_T("TEST"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);

	//pDC->SetTextColor(RGB(255,255,255));
	//pDC->DrawText(_T("My Test"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
	//pDC->SetTextColor(RGB(255,0,0));
	//pDC->DrawText(_T("TEST"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
    }
    else  {
	MemDC.SetTextColor(RGB(255,255,255));
	MemDC.DrawText(_T("TEST"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
	MemDC.SetTextColor(RGB(0,150,0));
	MemDC.DrawText(_T("My Test"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);

	//pDC->SetTextColor(RGB(255,255,255));
       //pDC->DrawText(_T("TEST"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
	//pDC->SetTextColor(RGB(0,150,0));
	//pDC->DrawText(_T("My Test"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
    }
	
	m_Seconds++;
	m_TimerEcho.Format(_T("%d: Seconds have passed"), m_Seconds); 
	test ^= 1;
	
   MemDC.DeleteDC();
   ReleaseDC(pDC);
   UpdateData(FALSE);
}

with pDC, it works well.

modified 17-Mar-14 11:40am.

Re: MFC CreateCompatibleDC(), Drawtext() no display

CPallini16-Mar-14 23:41

CPallini

16-Mar-14 23:41

You can see drawing operations occurred into a memory device context only if you BitBlt it to a 'standard' device context (see, for instance "CDC::CreateCompatibleDC" at MSDN[^].

Veni, vidi, vici.

Re: MFC CreateCompatibleDC(), Drawtext() no display

econy17-Mar-14 3:01

econy

17-Mar-14 3:01

I added a statement:

C++

int nX = tRect.left + tRect.Width() / 2;
int nY = tRect.top +  tRect.Height() / 2;
pDC->BitBlt(nX, nY, tRect.Width()/3, tRect.Height()/3, &MemDC, 
         0, 0, SRCCOPY);

But still get nothing on the screen.

Re: MFC CreateCompatibleDC(), Drawtext() no display

C^hris L^osinger17-Mar-14 3:33

C^hris L^osinger

17-Mar-14 3:33

you need to create a bitmap for your memdc to draw on.

see MSDN dox for CDC::CreateCompatibleDC:

http://msdn.microsoft.com/en-us/library/kwxzck32.aspx[^]

from the dox:

When a memory device context is created, GDI automatically selects a 1-by-1 monochrome stock bitmap for it. GDI output functions can be used with a memory device context only if a bitmap has been created and selected into that context.

image processing toolkits | batch image processing

Re: MFC CreateCompatibleDC(), Drawtext() no display

econy17-Mar-14 4:09

econy

17-Mar-14 4:09

Thanks, now the test string appeared.
But, the client area is black, and show text string in while color only, no change.
Please refer to the code:

C++

void CDrawTextTstDlg::OnTimer(UINT_PTR nIDEvent)
{
CDC *pDC; 
CRect tRect;
CDC   MemDC; 

pDC = this->GetDC();	
GetClientRect(&tRect);
MemDC.CreateCompatibleDC(NULL); 
	
CBitmap bmp;
bmp.CreateCompatibleBitmap(&MemDC, tRect.Width(), tRect.Height());
CBitmap *oldBitmap = MemDC.SelectObject(&bmp);
MemDC.SetBkMode(TRANSPARENT);
	
if (gtest == 0 ){
        MemDC.SetTextColor(RGB(255,255,255));
	MemDC.DrawText(_T("My Test"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
	MemDC.SetTextColor(RGB(255,0,0));
		       MemDC.DrawText(_T("TEST"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
}
else  {
	MemDC.SetTextColor(RGB(255,255,255));
		MemDC.DrawText(_T("TEST"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
MemDC.SetTextColor(RGB(0,150,0));
MemDC.DrawText(_T("My Test"),&tRect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);

}
	
pDC->BitBlt(0, 0, tRect.Width(), tRect.Height(), &MemDC, 
         0, 0, SRCCOPY);
m_Seconds++;
m_TimerEcho.Format(_T("%d: Seconds have passed"), m_Seconds); 
gtest ^= 1;
	
MemDC.SelectObject(oldBitmap);
bmp.DeleteObject();
MemDC.DeleteDC();
ReleaseDC(pDC);

CDialog::OnTimer(nIDEvent);
}

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