Re: DeviceIOControl () fails with error 87 - C / C++ / MFC Discussion Boards

Re: OS Specific Crash - Application crashes in Vista OS , Windows 2008 32/64 bit. Application doesn't crash in Win2003

Randor 11-Nov-09 9:06

Randor

11-Nov-09 9:06

Hi,

I believe the afxAmbientActCtx is only available in CWinApp/CWinAppEx applications. It is actually equal to the the AfxGetModuleState()->m_bSetAmbientActCtx. This is probably not what you need.

V K 2 wrote:
Can you suggest what has to be added .

Well you did not answer my questions. I asked them for a reason. So now I have to make a guess as to how to fix your ActiveX DLL.

Anyway if your ActiveX DLL exposes MFC functions then I would recommend protecting them with a call to the AFX_MANAGE_STATE[^] macro at the top of your exported function. The error you are recieving is related to Activation Contexts[^] so you will also need to double check that your manifest file is correct.

Best Wishes,
-David Delaune

how to convert any format to pdf using C(or)C++

soo preety10-Nov-09 0:55

soo preety

10-Nov-09 0:55

hi every body.......

in my application i want to convert any format to pdf

i.e word,excel,xml,html,ppt and so on....

in my application using C(or)C++ code....

thanks in advance......

if find any mistakes in my typing sorry......

thanks in advance....

Re: how to convert any format to pdf using C(or)C++

Richard MacCutchan10-Nov-09 5:21

Richard MacCutchan

10-Nov-09 5:21

soo preety wrote:
in my application i want to convert any format to pdf

You will need to understand how to read the various file formats using the available interface libraries as appropriate. Then you need to render the output in PDF format which will require one of the PDF libraries or printer drivers.

Re: how to convert any format to pdf using C(or)C++

Richard MacCutchan10-Nov-09 5:28

Richard MacCutchan

10-Nov-09 5:28

This looks lke an exact duplicate of a question from "eswar pothula", below. It would appear that you are abusing the forum - please desist.

DeviceIOControl () fails with error 87

vasu_sri10-Nov-09 0:47

vasu_sri

10-Nov-09 0:47

hi everybody,

iam using <b>DeviceIoControl()</b> to get the physical drive number. but
the problem is that the DeviceIoControl is giving error 87.means that parameter is incoorect.

please help me anybody knows this solution.

int GetDriveNumber(CString strDrive)
{
	TCHAR lpWindowsDir[_MAX_PATH+1];
	VOLUME_DISK_EXTENTS pdg;	
	CString strDevice;
	HANDLE hDevice =NULL;
	DWORD dw;
	DWORD dwBytesReturned;
	GetWindowsDirectory(lpWindowsDir,_MAX_PATH+1);

	strDevice.Format(_T("\\\\.\\%s:"),strDrive);
	hDevice = CreateFile(strDevice,					// the device
		GENERIC_READ,								// open for reading
		FILE_SHARE_READ|FILE_SHARE_WRITE,			// share mode
		NULL,										// default security
		OPEN_EXISTING,								// open existing
		FILE_ATTRIBUTE_NORMAL,						// normal file
		NULL);		
	if(hDevice != INVALID_HANDLE_VALUE)
	{
		BOOL bIsSucces = DeviceIoControl(hDevice,IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS,NULL,0,
			&amp;pdg,sizeof(pdg),&amp;dwBytesReturned,NULL);
		dw= GetLastError();

		CloseHandle(hDevice);
		return pdg.Extents-&gt;DiskNumber;
	}
	return FALSE;
}

Regards,
Srinivas

Re: DeviceIOControl () fails with error 87

David Crow10-Nov-09 3:17

David Crow

10-Nov-09 3:17

Your code worked fine for me. How are you calling GetDriveNumber()? Are you calling GetLastError() regardless of what DeviceIoControl() returns.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

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Re: DeviceIOControl () fails with error 87

Randor 10-Nov-09 5:45

Randor

10-Nov-09 5:45

Hi Srinivas,

What type of storage device are you using this control code on? You need to call GetLastError and check to see if the buffer you passed was too small. This control code can return an array greater than your buffer size.

Best Wishes,
-David Delaune

Re: DeviceIOControl () fails with error 87

vasu_sri10-Nov-09 21:45

vasu_sri

10-Nov-09 21:45

i got it, where is the problem.
i declared as #pragma pack(push, 1) in stdafx.h file.
it is working perfect,if i removed #pragma pack(push, 1) in a stdafx.h file.

but i need #pragma pack(push, 1) some where in my code,
how can i disable this pragma pack1 through code.

tell me if anybody knows this soultion

thanks

Regards,
Srinivas

Re: DeviceIOControl () fails with error 87

Randor 11-Nov-09 8:55

Randor

11-Nov-09 8:55

Hi Srinivas,

You should only add this #pragma pack[^] around the structs,classes that require packing. After the struct/class declaration you add:

#pragma pack(pop)

This will allow the other data types to have previous alignment.

Best Wishes,
-David Delaune

connecting to mysql through c++ using console application

kir_MFC10-Nov-09 0:11

kir_MFC

10-Nov-09 0:11

Create a C/C++ console application which connects to a MySQL database and shows all tables and their Primary Keys.please provide the answer.......

kir_MFC

Re: connecting to mysql through c++ using console application

LunaticFringe10-Nov-09 1:02

LunaticFringe

10-Nov-09 1:02

We'll assume that the language barrier is responsible for making you look as if you're a lazy young idiot who's incapable of doing his own work. I'm sure that's not really the case.

Roll eyes | :rolleyes:

Re: connecting to mysql through c++ using console application

Michael Schubert10-Nov-09 2:17

Michael Schubert

10-Nov-09 2:17

Re: connecting to mysql through c++ using console application

CPallini10-Nov-09 2:26

CPallini

10-Nov-09 2:26

kir_MFC wrote:
please provide the answer.......

kir_MFC wrote:
Create a C/C++ console application which connects to a MySQL database and shows all tables and their Primary Keys.

That's not a question.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: connecting to mysql through c++ using console application

niraj_180917-Nov-09 23:57

niraj_1809

17-Nov-09 23:57

How to connect to mysql through c++ using console application?Please do reply as soon as possible in my email address:sheshank.me@gmail.com

Ruuning MFC Exe in other computers

hellogany9-Nov-09 23:52

hellogany

9-Nov-09 23:52

Hi all

I have to run my MFC applications in other PC's .I have developed the application using VS2005 .The EXE works fine in my computers.But i need to run on many computers.Can any one suggest me a idea???

Thanks in advance!!!!

Regards
Gany

Re: Ruuning MFC Exe in other computers

Game-point10-Nov-09 0:16

Game-point

10-Nov-09 0:16

In other PC , u have also include exe with lib or dll file ..

Re: Ruuning MFC Exe in other computers

LunaticFringe10-Nov-09 1:14

LunaticFringe

10-Nov-09 1:14

On the project property's 'Configuration' tab, specify 'use MFC in a static library'. This will remove dependencies on the MFC dlls; you won't have to redistribute those with your .exe. Any third-party dlls you might use will still have to be distributed with the app. Place them in the same directory as the .exe when distributing.

If you want to get a little more professional, you can put together an installation package (.msi) that can create shortcuts to the user's Programs directory, creates any necessary registry entries, etc. VS05 supports this - it's pretty straightforward.

Re: Ruuning MFC Exe in other computers

hellogany10-Nov-09 17:47

hellogany

10-Nov-09 17:47

Hi

Thnks for your reply..

can you help me in providing steps for running the application as a installtion package .msi...

Your reply is highly appreciated.

Thanks

Gany!!!

Re: Ruuning MFC Exe in other computers

hellogany10-Nov-09 18:00

hellogany

10-Nov-09 18:00

Hi

i tried running the application using static library.

My Application is a Database oriented and hence i m getting the following error.

"oracle client and networking components were not found.These components are supplied by oracle corpartion and are part of the oracle version 7.3.3 or later client software insatllation

provider is unable to function until these components are installed."

Kindly provide me a solution

how to convert any format to pdf using C(or)C++ [modified]

eswar pothula9-Nov-09 23:22

eswar pothula

9-Nov-09 23:22

modified on Tuesday, November 10, 2009 6:47 AM

Re: how to convert any format to pdf using C(or)C++

Franck Paquier10-Nov-09 4:50

Franck Paquier

10-Nov-09 4:50

Hello

The best is to use a PDF Printer Driver.
it is a virtual printer that you install on your computer and you call when you want to print your document.

Somes are free .. and somes not.

(PDF995, PDFCreator, Amyuni, ...).

Regards
Franck

MFC-How to fill a polygon with bitmap

chadic9-Nov-09 22:53

chadic

9-Nov-09 22:53

hello
i drew some polygons, i want to fill each with a bitmap instead of rgb colors...
how can i do that?can you give me an example code?
thk you very much Smile | :)

please guide for me convert image tiff to image bmp ??? (VC++6.0)

aa_zz9-Nov-09 22:21

aa_zz

9-Nov-09 22:21

please guide for me convert image tiff to image bmp by VC++6.0. not MFC.

wish help of everyone .
thanks very much.

nothing

Re: please guide for me convert image tiff to image bmp ??? (VC++6.0)

CPallini9-Nov-09 22:45

CPallini

9-Nov-09 22:45

You may use, for instance, GDI+ Image class [^].
Smile | :)

dynamic_cast fails

Maxwell Chen9-Nov-09 22:13

Maxwell Chen

9-Nov-09 22:13

There is an Edit control on the dialog. The ID is IDC_EDIT.

In CMyDialog::OnInitDialog(), I do this ...

CEdit* pEdit = dynamic_cast<CEdit*>(GetDlgItem(IDC_EDIT) /* = some valid address */);
if(!pEdit) {
  // Error;
}

The CWnd* returned from GetDlgItem failed to convert to a CEdit*. But isn't CEdit derived from CWnd? Confused | :confused:

Maxwell Chen

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