C / C++ / MFC Discussion Boards

Re: How to get Handle of the specified process and kill the process???

Geert van Horrik16-Aug-05 4:18

Geert van Horrik

16-Aug-05 4:18

if you know the executable location, you can use this function:

<br />
bool CMyclass::CloseApplication(CString sFilename)<br />
{<br />
	// Declare variables<br />
	HANDLE hProcessSnap = NULL;<br />
	PROCESSENTRY32 pe32 = {NULL};<br />
	CString sCompare, sTemp;<br />
	CString sProcesm_sFilename = //Extract the filename from the sFilename, so you only have to pass notepad.exe<br />
#if (_MFC_VER < 0x0700)<br />
	sProcesm_sFilename.MakeLower();<br />
#else<br />
	CString sLowerTemp;<br />
	sLowerTemp = sProcesm_sFilename;<br />
	sProcesm_sFilename = sLowerTemp.MakeLower();<br />
#endif<br />
	<br />
	hProcessSnap = CreateToolhelp32Snapshot <br />
		(TH32CS_SNAPPROCESS, 0);<br />
	<br />
	pe32.dwSize = sizeof(PROCESSENTRY32);<br />
	if (Process32First(hProcessSnap, &pe32))<br />
	{<br />
		do<br />
		{<br />
			sCompare.Format("%s", pe32.szExeFile);<br />
<br />
#if (_MFC_VER < 0x0700)<br />
			sCompare.MakeLower();<br />
#else<br />
			CString sLowerTemp;<br />
			sLowerTemp = sCompare;<br />
			sCompare = sLowerTemp.MakeLower();<br />
#endif<br />
<br />
			if (sCompare == sProcesm_sFilename)<br />
			{<br />
				// Get handle to process<br />
				HANDLE hProcess = OpenProcess<br />
					(PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID);<br />
				<br />
				DWORD exCode;<br />
				GetExitCodeProcess(hProcess, &exCode);<br />
				TerminateProcess(hProcess, exCode);<br />
			}<br />
		} while (Process32Next(hProcessSnap, &pe32));<br />
	}<br />
	else<br />
	{<br />
		return false;<br />
	}<br />
	<br />
	return true;<br />
}<br />

Geert

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Visit my website: www.gvhsoftware.org

Re: How to get Handle of the specified process and kill the process???

Supriya Tonape17-Aug-05 3:01

Supriya Tonape

17-Aug-05 3:01

thank U Geert but I got late to read Ur soln but did in same manner after R&D.bye
Supriya

Video RAM Usage Indicator

Joel Holdsworth16-Aug-05 0:09

Joel Holdsworth

16-Aug-05 0:09

Does anyone know of a way of measuring/graphing how much Video RAM has been allocated? Is there a (freeware) utilitity to do that?

Joel Holdsworth

Re: Video RAM Usage Indicator

Blake Miller16-Aug-05 5:18

Blake Miller

16-Aug-05 5:18

We have REALLY tried to find this out, and apparently there is no known API for determining such information.

mp3 streaming

sebinfrancis15-Aug-05 23:45

sebinfrancis

15-Aug-05 23:45

i am writing a code for playing an mp3 file.i will first read 2mb from the file and it will put in to a buffer and then i will play it.then the next 2mb will read and so on.but there is an almost 1 second delay after each 2mb.what will be the problem. this is my code Smile | :)

void CMP3PLAYERDlg::OnPlay()
{
m_Video=NULL;

if(m_Video==NULL)
{
m_Video = MCIWndCreate(this->GetSafeHwnd(),
AfxGetInstanceHandle(),
WS_CHILD |MCIWNDF_NOMENU|MCIWNDF_SHOWNAME,m_Path);

m_Play.EnableWindow(FALSE);
//CMP3PLAYERDlg pNewObject = new CMP3PLAYERDlg;
AfxBeginThread(MyThreadProc, this);
}
Pause = FALSE;

}

UINT MyThreadProc( LPVOID pParam )
{
CMP3PLAYERDlg* pObject = (CMP3PLAYERDlg*)pParam;

CMediaType mt;
mt.majortype = MEDIATYPE_Stream;
mt.subtype = MEDIASUBTYPE_MPEG1Audio;
DWORD dwKBPerSec =INFINITE;

HANDLE hFile = CreateFile(pObject->m_Path,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
0,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
AfxMessageBox("Could not open "+ pObject->m_Path);

}
ULARGE_INTEGER uliSize;
uliSize.LowPart = GetFileSize(hFile, &uliSize.HighPart);
read=uliSize.LowPart;
uliSize.LowPart=2000000;

PBYTE pbMem = new BYTE[uliSize.LowPart];
if (pbMem == NULL)
{
AfxMessageBox("Could not allocate %d bytes", uliSize.LowPart);

}
do
{

if(read<ulisize.lowpart)
{
="" ulisize.lowpart="read;
" read+="2000000;
" pbyte="" pbmem="new" byte[ulisize.lowpart];
="" }
="" bool="" h="ReadFile(hFile,(LPVOID)pbMem,uliSize.LowPart,&dwBytesRead,NULL)" ;
="" if="" (!h)
="" afxmessagebox("could="" not="" read="" file");
="" closehandle(hfile);
="" break;
=""
="" hresult="" hr="S_OK;
" coinitialize(null);
=""

="" cmemstream="" stream(pbmem,="" (longlong)ulisize.quadpart,="" dwkbpersec);
="" cmemreader="" *rdr="new" cmemreader(&stream,="" &mt,="" &hr);
="" (failed(hr)="" ||="" rdr="=" null)
="" delete="" rdr;
="" create="" filter="" 0x%8.8x",="" hr);
="" couninitialize();
="" rdr-="">AddRef();

hr = CoCreateInstance(CLSID_FilterGraph,
NULL,
CLSCTX_INPROC,
IID_IFilterGraph,
(void **)&pFG);
if(hr!=0)
{
AfxMessageBox("cannot create instance");
}

hr = pFG->AddFilter(rdr, NULL);
IGraphBuilder *pBuilder;

hr = (pFG)->QueryInterface(IID_IGraphBuilder, (void **)&pBuilder);
pin=rdr->GetPin(0);
int n=rdr->GetPinCount();

hr = pBuilder->Render(pin);

pBuilder->Release();

hr = pFG->QueryInterface(IID_IMediaControl, (void **)&pMC);
hr = pFG->QueryInterface(IID_IMediaEvent, (void **)&pME);
OAEVENT oEvent;
hr = pME->GetEventHandle(&oEvent);
hr = pMC->Run();
if (SUCCEEDED(hr))
{
LONG levCode;
hr = pME->WaitForCompletion(INFINITE, &levCode);
read-=2000000;

}

rdr->Release();

}while(dwBytesRead!=read);
pMC->Release();
pME->Release();
if (pFG)
{
ULONG ulRelease = pFG->Release();
if (ulRelease != 0)
{
AfxMessageBox("Filter graph count not 0! was %d", ulRelease);
}
}
CloseHandle(hFile);
CoUninitialize();
pObject->m_Play.EnableWindow(TRUE);
return TRUE;
}

please give me an elaborate answer. Smile | :)

sebin

Problem with serialization

heavenode15-Aug-05 23:40

heavenode

15-Aug-05 23:40

I'm writing a simple flat file database MFC SDI application. However after i save n close the file, i cant open it again and shows 'unexpected file format'.

below is my serialize funcation for the new class, the sequence is correct. What other problem can it be?

void CPerson::Serialize(CArchive &ar)
{
CObject::Serialize(ar);

if (ar.IsStoring())
ar << m_sName << m_sRoom << m_iSex << m_iStatus;
else
ar >> m_sName >> m_sRoom >> m_iSex >> m_iStatus;
}

Re: Problem with serialization

Trollslayer16-Aug-05 1:26

Trollslayer

16-Aug-05 1:26

What are the data types for the member variables and if you open file were the contents saved as expected ?
Do a test with CString variables to make a test file if you are uncertain about what should happen when storing.

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Re: Problem with serialization

heavenode16-Aug-05 1:44

heavenode

16-Aug-05 1:44

Problem solved, there's nothing wrong with the code. actually i have another similar application, it's because the save-filetype (fdb) for both applications are the same, so when i save using the second application, the window uses my first application to open and resulting in 'unexpected file format'.

Re: Problem with serialization

Ravi Bhavnani16-Aug-05 4:34

Ravi Bhavnani

16-Aug-05 4:34

You may find this[^] series of articles interesting.

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Terminate an exe from another exe ?

Amarelia15-Aug-05 23:40

Amarelia

15-Aug-05 23:40

Hello Friends

I have an application in which I need to start one exe from another one and at the end when the first one ends, it should automatically end the second one.

To start I use ShellExecute() or WinExec() function. And to terminate the another exe I put code into the destructor of the first one from where I have started it. But the problem is I don't know the Handle of the new exe that I have started using ShellExecute() or WinEec().....

Is there any functions which can give me the Handle of a perticular window or is there any other way to stop the application without knowing the handle or process id ?

Thankx in advance

My Code Looks Like :
-------------------
My first.exe file
================
MyClass()
{
// Do some work here........

WinExec("C:\\Temp\\second.exe",SW_SHOW);
// Do some work here...
};

~MyClass()
{
Here I want to kill(Terminate) the second.exe
}

Any help plz ?

Thankx
}

}

Amarelia Maehsh
Gujarat
India

Re: Terminate an exe from another exe ?

mark novak16-Aug-05 0:32

mark novak

16-Aug-05 0:32

You could use CreateProcess() and TerminateProcess(), however TerminateProcess() ends a program so abruptly that some applications don't handle it well, it doesn't give them time to save their settings or other exit code. I'd recommend using FindWindowEx() and sending a WM_CLOSE to the main window.

Re: Terminate an exe from another exe ?

Trollslayer16-Aug-05 1:27

Trollslayer

16-Aug-05 1:27

PostQuitMessage is another way.

The tigress is here Big Grin | :-D

Re: Terminate an exe from another exe ?

David Crow16-Aug-05 4:17

David Crow

16-Aug-05 4:17

Not a good idea if handling other messages during shutdown is a concern. Call PostMessage(WM_CLOSE) instead. PostQuitMessage() does not shut down an application properly as other messages might be initiated by the shutdown operation (e.g., save the document?) and those messages, along with any other messages that might be in the queue, will not be processed.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Terminate an exe from another exe ?

Trollslayer16-Aug-05 7:56

Trollslayer

16-Aug-05 7:56

Thank you David, that's well worth knowing.

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Re: Terminate an exe from another exe ?

Amarelia16-Aug-05 18:12

Amarelia

16-Aug-05 18:12

Thankx for taking time to read my question...

Amarelia Maehsh
Gujarat
India

Re: Terminate an exe from another exe ?

Amarelia16-Aug-05 18:13

Amarelia

16-Aug-05 18:13

Thankx a lot for giving attention to my question ....

Amarelia Maehsh
Gujarat
India

Re: Terminate an exe from another exe ?

David Crow16-Aug-05 4:09

David Crow

16-Aug-05 4:09

Amarelia wrote:
But the problem is I don't know the Handle of the new exe that I have started using ShellExecute()...

Why not? It's in the PROCESS_INFORMATION structure that ShellExecute() populates.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: Terminate an exe from another exe ?

Amarelia16-Aug-05 18:11

Amarelia

16-Aug-05 18:11

Thank you very much

I did the same but bit differently. I used CreateProcess() and in that there is last parameter as [out] parameter which is PROCESS_INFORMATION structure and I use that to close application.

thankx once again

Amarelia Maehsh
Gujarat
India

Re: Terminate an exe from another exe ?

David Crow17-Aug-05 2:08

David Crow

17-Aug-05 2:08

I'm glad you figured it out because my suggestion was wrong. I meant to say CreateProcess() not ShellExecute().

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Checking the type of mouse in Win32

SanjaySMK15-Aug-05 23:36

SanjaySMK

15-Aug-05 23:36

How to check the type of the mouse using Win32? Is there any API? Please help.

Software Developer
Sanjay Khapre

Re: Checking the type of mouse in Win32

mark novak16-Aug-05 0:27

mark novak

16-Aug-05 0:27

You can get some of the properties using GetSystemMetrics().

SM_CMOUSEBUTTONS will get you the number of buttons.
SM_MOUSEWHEELPRESENT will tell you if it has a wheel.
SM_SWAPBUTTON will tell you if they swapped their buttons (left handed).

How to set image DPI

a_du15-Aug-05 23:28

a_du

15-Aug-05 23:28

I have created a bmp file.
Using CImage can load the file and save as a another file format like tiff, but how can i set the DPI of the image.
Please help, thanks.

Re: How to set image DPI

C^hris L^osinger16-Aug-05 4:00

C^hris L^osinger

16-Aug-05 4:00

the BITMAPINFOHEADER struct at the beginning of the BMP has DPI members. set them with the values you want.

Cleek | Image Toolkits | Thumbnail maker

Problem with list control

zhaopi15-Aug-05 22:26

zhaopi

15-Aug-05 22:26

I am declaring a list and add in contents into it~
But i am always unpredictably facing the display problem~
For example, i am reading information from a database entry by entry, but what is displayed in the list control is totally out of order, and correspondance is wrong. what is worse, some of the colums are blank though i can see the entries are correctly inserted into the list(i have traced this using break point).

The code i used is as below:

(m_bList is the list control declared)

int index;<br />
for(index = 0; index < total; index++)<br />
{<br />
LV_ITEM lvi;<br />
lvi.mask = LVIF_TEXT;<br />
<br />
lvi.iItem = index;<br />
lvi.iSubItem = 0;<br />
lvi.pszText = (LPSTR)(LPCSTR)sbatchid;<br />
lvi.lParam = 1;<br />
m_bList.InsertItem(&lvi);	<br />
<br />
lvi.iSubItem = 1;<br />
lvi.pszText = (LPSTR)(LPCSTR)page;m_bList.SetItem(&lvi);<br />
		<br />
CString modi = time.Format("%Y/%m/%d/%H:%M");<br />
<br />
lvi.iSubItem = 2;<br />
lvi.pszText = (LPSTR)(LPCSTR)modi;<br />
m_bList.SetItem(&lvi);<br />
}

Re: Problem with list control

Rage15-Aug-05 23:16

Rage

15-Aug-05 23:16

zhaopi wrote:
what is displayed in the list control is totally out of order

First thought (without reading your code) have you disabled the "Sorted" option of the list control ?

~RaGE();

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.