C / C++ / MFC Discussion Boards

Re: how to upload a file on a server at a perticular location?

AnayKulkarni12-Sep-07 0:14

AnayKulkarni

12-Sep-07 0:14

yes, it worked fine. thanks a lot sir.

Anay

Re: how to upload a file on a server at a perticular location?

David Crow12-Sep-07 3:40

David Crow

12-Sep-07 3:40

Are you calling the connection's SetCurrentDirectory() method before PutFile()?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

How to fixed such error?C2220

kcynic11-Sep-07 17:38

kcynic

11-Sep-07 17:38

I use VC2005.I found a new error I have never met before.

error C2220: warning treated as error - no 'object' file generated

How should I fixed it ?

Thanks.

GOOD LUCK

Re: How to fixed such error?C2220

Stephen Hewitt11-Sep-07 17:46

Stephen Hewitt

11-Sep-07 17:46

Try checking this[^] out.

Steve

Re: How to fixed such error?C2220

David Crow12-Sep-07 3:42

David Crow

12-Sep-07 3:42

kcynic wrote:
How should I fixed it ?

Start by reading this.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Get and Set methods

User 58385211-Sep-07 16:16

User 583852

11-Sep-07 16:16

consider

<br />
class Car<br />
{<br />
   int speed;<br />
   doulbe engineSize;<br />
};<br />
<br />

I persoanlly dislike code like this. I tend to make all data members private and provide inlined get and set methods where appropriate. The main reason I like the get and set methods is its easier to debug code as you can put a break point in the set method for example and catch every change to the value. Also it prevents people taking the address of these variables and manipulating them through pointers which can also be hard to track down in a large project.

Im interested to hear the opinions of others on the use of public data members or getter and setter methods

Re: Get and Set methods

George L. Jackson11-Sep-07 18:19

George L. Jackson

11-Sep-07 18:19

I mostly use "get" and "set" methods to access data members which are private by default. However, there are rare special situations where I do access public fields directly.

"We make a living by what we get, we make a life by what we give." --Winston Churchill

Re: Get and Set methods

Nelek11-Sep-07 22:55

Nelek

11-Sep-07 22:55

In my opinion it depends about what is being done. In my studies final project I was using GET and SET everywhere, but not with numbers or easy variables. I was using them with objects that holded more than hundred parameters (its sizeof (myObject) in some points were in KB). Because of that when I was searching elements of the third hierarchy (it means go in a collection of elements, where every element has a collections of other elements, and then search for the concrete parameter inside another collection), the program was f***ing slow and needed a lot of resources to get the object between classes.

I change it to public and worked with pointers/references and then all was fine.

I like to use Get and Set, but sometimes is impossible.

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Re: Get and Set methods

Mark Salsbery12-Sep-07 8:30

Mark Salsbery

12-Sep-07 8:30

A couple thoughts...

Inline getters and setters should work just as fast as direct access.

An advantage of getters and setters is you can change the implementation without
having to change code anywhere else. For example, if in the future you need to calculate
the "speed" member on the fly, all you'd have to do is implement that functionality in the getter
method. All code that uses it stays the same.

Cheers,
Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

EnumProcesses

dellthinker11-Sep-07 15:54

dellthinker

11-Sep-07 15:54

Hi all, quick question. I've read the MSDN library definition for this API and all i really want to know is can i use it to find a running program or not. Still searhing for a example of this API in use so its still very un-clear to me. Thanx in advance!

Re: EnumProcesses

Hamid_RT11-Sep-07 19:39

Hamid_RT

11-Sep-07 19:39

EnumProcesses shows each process on the system but what do you need exactly?

Re: EnumProcesses

Randor 11-Sep-07 20:39

Randor

11-Sep-07 20:39

DWORD dwPID[16860]; //maximim amount of PIDS possible
DWORD dwRet;
DWORD dwNumProcesses;

if (TRUE == EnumProcesses(dwPID,sizeof(dwPID),&dwRet))
{
	dwNumProcesses = dwRet / (sizeof(DWORD);

	for(int i =0;i < dwNumProcesses;++i)
	{
		printf(_T("Process ID = %d"),dwPID[i];
	}
}

Best Wishes,
-Randor (David Delaune)

Re: EnumProcesses

Randor 11-Sep-07 20:53

Randor

11-Sep-07 20:53

This function can check if a process is running by checking the executable name. You may want to add additional checking such as window class enumeration or enumeration of known loaded modules.

BOOL IsExecutableRunning(TCHAR *lpszExe)
{
	HANDLE hSnapShot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
	PROCESSENTRY32 processInfo;
	processInfo.dwSize=sizeof(PROCESSENTRY32);
	
	while(Process32Next(hSnapShot,&processInfo)!=FALSE)
	{
		if(processInfo.th32ProcessID > 12 && _tclen(processInfo.szExeFile) > 0)
		{
			if(_tcscmp(processInfo.szExeFile,lpszExe) == 0)
			{
				CloseHandle(hSnapShot);
				return TRUE;
			}
		}
	}
	CloseHandle(hSnapShot);
	return FALSE;
}

Best Wishes,
-Randor (David Delaune)

MS OFFICE File Open Save Dialog Hooking

JuggernautMsn11-Sep-07 14:00

JuggernautMsn

11-Sep-07 14:00

I am trying to get and set the following information from File/Open save dialog of Microsoft Office 2000/2003/2007

1.Retrieve the currently displayed/selected folder path and also the file name that is selected if any.

2. Retrieve the selected file path, when the user clicks the open or save button.

3.Set a pre-defined string path within the file-name combo box.

I have been able to do the above task in case of File Open/Save common controls dialog(used by WordPad ,Notepad,
Acrobat Reader etc.) by using the dialog functions depicted in MSDN. But it is not working with Microsoft Office Dialog and I have found no MSDN documentation that depicts the internal messages of Microsoft Office Dialogs.

Please help me if you can.

Thanks and regards,

Re: MS OFFICE File Open Save Dialog Hooking

Mark Salsbery11-Sep-07 15:14

Mark Salsbery

11-Sep-07 15:14

Microsoft Office doesn't use the common dialog for file open/save AFAIK.

The Office dialogs may well be undocumented. From our point of view, the
MS Office suite of applications are proprietary 3rd-party applications, not part of the
operating system, so there's no reason the dialogs and their functionality should be
documented.

You may get a reply here from someone with the info you need.
In the meantime, here's a couple links you may or may not have been to already:

Office Developer Center[^]
MSDN Newsgroups: Office Solutions Development[^]

That's all the info I have Smile | :)

Good luck!
Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: MS OFFICE File Open Save Dialog Hooking

JuggernautMsn11-Sep-07 15:19

JuggernautMsn

11-Sep-07 15:19

Sir,

Thank you for your effort to help me out.

I will check those links mentioned by you.

Thanks for this and the welcome message at the lounge.

Regards,

What's the diff between DLLs ?

USAFHokie8011-Sep-07 10:16

USAFHokie80

11-Sep-07 10:16

What's the difference between an "MFC extension DLL" and a "regular DLL with MFC dynamically linked" ?

What are the uses for each type?

I asked this question on codeguru and was met with an extraordinarily arrogant non-answer. If that's what you plan on posting, please keep it to yourself.

Thanks,
Sam.

Re: What's the diff between DLLs ?

C^hris L^osinger11-Sep-07 10:38

C^hris L^osinger

11-Sep-07 10:38

an MFC Ext DLL is one that exports C++ classes using MFC as a base. a regular DLL exports C-style functions.

or, as MS puts it...

image processing toolkits | batch image processing

Re: What's the diff between DLLs ?

USAFHokie8011-Sep-07 10:59

USAFHokie80

11-Sep-07 10:59

so then the "regular dll that uses MFC" can't contain classes? for instance, if i wanted to put a dialog and associated functions in a dll, i would use the extension dll whereas if i were only creating functions that say, operated on a CString, i could do that in a "regular dll that uses MFC" ?

Re: What's the diff between DLLs ?

C^hris L^osinger11-Sep-07 11:17

C^hris L^osinger

11-Sep-07 11:17

USAFHokie80 wrote:
so then the "regular dll that uses MFC" can't contain classes?

it can contain them, sure. you can even export them: (for example).

but if you want to export C++ classes, you'll really should use an MFC extension DLL. most importantly, this ensures that the app and the DLL are using the same heap for memory allocation - don't want to pass a CString which has allocated memory into a DLL which is looking at a different heap...

or, as MS puts it: "If you need to pass an MFC or MFC-derived object pointer to or from an MFC DLL, the DLL should be an extension DLL."

image processing toolkits | batch image processing

Re: What's the diff between DLLs ?

USAFHokie8011-Sep-07 11:29

USAFHokie80

11-Sep-07 11:29

Ah. That makes more sense. I don't use DLLs really, so that's probably the problem here. Just trying to figure out the difference so that I can start using them correctly. Smile | :)

Re: What's the diff between DLLs ?

Mark Salsbery11-Sep-07 11:50

Mark Salsbery

11-Sep-07 11:50

Here's another link (very close to Chris' first link)...

Kinds of DLLs[^]

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: What's the diff between DLLs ?

led mike11-Sep-07 11:49

led mike

11-Sep-07 11:49

Chris Losinger wrote:
but if you want to export C++ classes, you'll really should use an MFC extension DLL.

If the DLL uses MFC otherwise a simple DLL will suffice.

Add drop shadow to a child dialog

dSolariuM11-Sep-07 6:09

dSolariuM

11-Sep-07 6:09

Hi,
I want to add drop shadow to a child window...
please help me.
thank you.

Every new thing you learn,Gives you a new personality.

Re: Add drop shadow to a child dialog

Stephen Hewitt11-Sep-07 14:30

Stephen Hewitt

11-Sep-07 14:30

I will assume you're using MFC:

BOOL CShadowDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	::SetClassLong(
		GetSafeHwnd(),
		GCL_STYLE,
		::GetClassLong(GetSafeHwnd(), GCL_STYLE) | CS_DROPSHADOW/*0x00020000*/
		);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

Note that CS_DROPSHADOW requires a Windows version >= XP.
Note that after this code is run ALL dialogs will have shadows!

Steve

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