C / C++ / MFC

Christian Graus wrote:

Well, it's really simple. You need to declare that variable somewhere, without the extern keyword. Otherwise, the object does not exist.

And it's nasty because you have a global flying around, when you'd do better to have it all encapsulated in a class.

top7ob wrote:

i have error that not define fstream.

:((class fileclass<br />
{<br />
fstrem myfile1;<br />
fileclass::fileclass(){<br />
myfile.open(.........);<br />
}<br />
}<br />
----testscanner.cpp<br />
(<code>1)<br />
int main()<br />
{<br />
(2<br />
}

(3)<br />
getT()<br />
{<br />
(4)<br />
}

top7ob wrote:

but my question is: where can i define the object of class
is in the main or out of main.

ayol12122 wrote:

there is some way to reduce this Ram abuse to a more reasonable value?

MSDN wrote:

Before using an array, use SetSize to establish its size and allocate memory for it. If you do not use SetSize, adding elements to your array causes it to be frequently reallocated and copied. Frequent reallocation and copying are inefficient and can fragment memory.

ayol12122 wrote:

...and check in task manager...i can see about 100MB of RAM consumption.

Jim Crafton wrote:

Is there a way around this?

Jim Crafton wrote:

...any process launched by the batch file doesn't have a parent.

ulretsam wrote:

DDX is for the automatic data transfer between controls and associated member variables of CDialog or CFormView derived classes.

ulretsam wrote:

My DLLs are linked at runtime via a call to LoadLibrary()

static AFX_EXTENSION_MODULE MyDLLProjectDLL = { NULL, NULL };
 
extern "C" int APIENTRY
DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
	// Remove this if you use lpReserved
	UNREFERENCED_PARAMETER(lpReserved);
 
	if (dwReason == DLL_PROCESS_ATTACH)
	{
		// Extension DLL one-time initialization
		if (!AfxInitExtensionModule(MyDLLProjectDLL, hInstance))
			return 0;

		// Insert this DLL into the resource chain
		// NOTE: If this Extension DLL is being implicitly linked to by
		//  an MFC Regular DLL (such as an ActiveX Control)
		//  instead of an MFC application, then you will want to
		//  remove this line from DllMain and put it in a separate
		//  function exported from this Extension DLL.  The Regular DLL
		//  that uses this Extension DLL should then explicitly call that
		//  function to initialize this Extension DLL.  Otherwise,
		//  the CDynLinkLibrary object will not be attached to the
		//  Regular DLL's resource chain, and serious problems will
		//  result.
 
		new CDynLinkLibrary(MyDLLProjectDLL);
	}
	else if (dwReason == DLL_PROCESS_DETACH)
	{
		// Terminate the library before destructors are called
		AfxTermExtensionModule(MyDLLProjectDLL);
	}
	return 1;   // ok
}

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ON_COMMAND(g_iFirstCmdID + CMDID_STABILITY_TRACE, OnStabilityTrace)<br />