C / C++ / MFC

5-Oct-09 22:55

SetConsoleTitle()[^] ?

GetProcAddress returns wrong address for itself

Re: Shell title

Souldrift6-Oct-09 1:36

Souldrift

6-Oct-09 1:36

God, I couldn´t find that anywhere. You are my hero today Smile | :)

.
Thanks.

Souldrift

minix 3 comment

rad-25-Oct-09 22:21

rad-2

5-Oct-09 22:21

i am doing a project on customization of minix 3 to my native language if anyone has any contributing ideas i will be glad Roll eyes | :rolleyes:

Re: minix 3 comment

CPallini5-Oct-09 22:29

CPallini

5-Oct-09 22:29

Please post it in the Collaboration / Testing [^] forum.
Smile | :)

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-- 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.
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[My articles]

FotisSs5-Oct-09 21:59

FotisSs

5-Oct-09 21:59

Hello everybody I have observed a strange behaviour in Win Vista and 7 when I call the GetProcAddress to resolve it self
GetProcAddress(GetModuleHandle("kernel32.dll"),"GetProcAddress") returns wrong value.

I compare the return value with the windbg and its way different (though in a valid 0x7000000-0x7ffffff range).
I 've seen some reports on the web about it but I dont know how to overcome this problem.
Any ideas?

Thanx

Re: GetProcAddress returns wrong address for itself

Stuart Dootson5-Oct-09 23:09

Stuart Dootson

5-Oct-09 23:09

What addresses are you seeing?

In the VS debugger, I see my program enter the same address (0x76E81202) that both &GetProcAddress and GetProcAddress(GetModuleHandle(L"kernel32.dll"),"GetProcAddress") return - this is under Windows 7 x64.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: GetProcAddress returns wrong address for itself

FotisSs6-Oct-09 0:08

FotisSs

6-Oct-09 0:08

Attach the Windbg and look for GetProcAddress it should be a different one.

In my case it points to GetProcAddressStub instead of GetProcAddress.
In some other examples I tried involving dll injection the address is far more out of
the kernel32.dll range

Re: GetProcAddress returns wrong address for itself

FotisSs6-Oct-09 0:59

FotisSs

6-Oct-09 0:59

Ok I managed to narrow it down. You where right about .exe it works fine.

BUT in case of a dll run by rundll32.exe things change and GetProcAddress returns always wrong

Deallocating data allocated in MFC thread

Chesnokov Yuriy5-Oct-09 21:24

Chesnokov Yuriy

5-Oct-09 21:24

How to deallocate from MFC GUI application the data that was allocated in MFC thread?

Upon a button click in MFC dialog application, the thread is started with AfxBeginThread, it allocates some float* array with malloc() then send to MFC application a windows message attaching that buffer.
It is not possible to deallocate it from MFC dialog message handler that float* array with free()??? It returns heap corruption, is it due to deallocation from another thread or some buffer overrun?

Чесноков

Re: Deallocating data allocated in MFC thread

Sameerkumar Namdeo5-Oct-09 22:08

Sameerkumar Namdeo

5-Oct-09 22:08

i guess it might be due to buffer overrun or due to something like the following might have happened...

in one thread...
float *f = (float*)malloc(100*sizeof(float));

in another thread u r receiving the memory, say in 'ftemp'
afterward in this second thread u might be accessing ftemp by either
incrementing or decrementing like this...
ftemp--; or
ftemp = ftemp + 1;
etc,..

and finally the deallocation task..
free(ftemp);

Re: Deallocating data allocated in MFC thread

David Crow6-Oct-09 3:09

David Crow

6-Oct-09 3:09

Chesnokov Yuriy wrote:
It is not possible to deallocate it from MFC dialog message handler that float* array with free()???

Yes, assuming the address has not been changed.

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Range->GetValue()

MsmVc5-Oct-09 20:57

MsmVc

5-Oct-09 20:57

Hi All

I am getting excel rows and columns through this way.

Excel::RangePtr pRange = sheet1->UsedRange;
if ( pRange == NULL )
{
	return 0;
}
VARIANT var=pRange->GetValue();
if(var.vt==VT_EMPTY)
{
return true;
}
long row;
long col;
COleSafeArray sarect(pRange->GetValue());
sarect.GetUBound(1,&row);
sarect.GetUBound(2,&col);

it's working well but i have found some specific case error.Like when excel sheet content only one cell value then showing debug assertion failed.

File:f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\olevar.cpp
Line:1817

COleSafeArray& COleSafeArray::operator=(const VARIANT& varSrc)
{
	ASSERT(varSrc.vt & VT_ARRAY);

	if(!(varSrc.vt & VT_ARRAY))
		AfxThrowInvalidArgException();		

	AfxCheckError(::VariantCopy(this, (LPVARIANT)&varSrc));
	return *this;
}

Plz help me.

Getting function result from Sheetcalculate event of Excel::WorkbookEvents

NarVish5-Oct-09 19:27

NarVish

5-Oct-09 19:27

Hi,
SheetCalculate function is getting fired whenever there is change in function(like =sum(A1,A2)) related Excel workbook cells. My aim is to get the function result in excel. To get that I'm trying by calling different functions of iDispatch. But couldn't able to get the expected result. Please guide me to read the function result. Thanks in advance.

_ATL_FUNC_INFO SheetCalculateInfo = { CC_CDECL, VT_EMPTY, 1, { VT_DISPATCH } };
BEGIN_SINK_MAP(ExcelBookEventHandler)
SINK_ENTRY_INFO(1, __uuidof(Excel::WorkbookEvents), 0x0000061b, &ExcelBookEventHandler::SheetCalculate, &SheetCalculateInfo)
END_SINK_MAP()
void _stdcall SheetCalculate(IDispatch *iDispatch)
{
////////////*******GetIDsOfNames*******////////////
static DISPID dispid = 0;
wchar_t *ucName = L"Evaluate"; //I tried by giving "Run" and "Calculate" values in place of "Evaluate"
HRESULT result = iDispatch->GetIDsOfNames(IID_NULL, &ucName, 1,LOCALE_SYSTEM_DEFAULT, &dispid);

////////////*******Invoke*******////////////
VARIANT varResult;
DISPID dispid;
DISPID dispidNamed = DISPATCH_METHOD;
EXCEPINFO excep;
UINT uArgErr;
DISPPARAMS dispparams;
dispparams.cNamedArgs = 0;
dispparams.cArgs = 2;
dispparams.rgdispidNamedArgs = &dispidNamed;
HRESULT result = iDispatch->Invoke( odispid, IID_NULL, LOCALE_SYSTEM_DEFAULT,
DISPATCH_METHOD, &dispparams, &varResult, &excep, &uArgErr);

////////////*******GetTypeInfo*******////////////
ITypeInfo* pTypeInfo;
HRESULT result= iDispatch->GetTypeInfo(0,LOCALE_SYSTEM_DEFAULT,&pTypeInfo);

////////////*******GetTypeInfoCount*******////////////
UINT pct1;
HRESULT result= iDispatch->GetTypeInfoCount(&pct1);

////////////*******QueryInterface*******////////////
HRESULT result = iDispatch->QueryInterface(IID_IDispatch,(void**)&iDispatch);
}

Save Folder path

Game-point5-Oct-09 18:36

5-Oct-09 18:36

hi

i have little bit problem in how to get folder path ??

UpdateData();
	CFile __file;
	CFileDialog __FileDialog(true,"*.*",NULL,OFN_EXPLORER,"All Files : (*.*)|*.*||");
	//CFileDialog __FileDialog(TRUE, _T (".xyz"), 0, 4 | 2, _T ("XYZ Files(*.xyz)|*.xyz All Files(*.*)|*.*||"), this, 0, 0); 
	if (__FileDialog.DoModal() == IDOK)
	{
		if( __file.Open(__FileDialog.GetFileName(), CFile::modeRead) == FALSE )
			return;
		<big>CArchive ar(&__file, CArchive::load);</big>		
	}
	__file.Close();
	UpdateData(true);

here output is : D:\2009\October\Visual Studio Projects\visual\centerI.TIF

but i need save this file path :
D:\2009\October\Visual Studio Projects\visual\

please how to get folder path ?

Thanks

Naveen5-Oct-09 19:03

5-Oct-09 19:03

raju_Code wrote:
please how to get folder path ?

__FileDialog.GetFolderPath()

Game-point5-Oct-09 19:11

5-Oct-09 19:11

Thanks for your response Mr.Naveen

its throwing exception ..

when comes __FileDialog.DoModel()

its open's system dialog its having Open and Cancel button

i need Save and Cancel button //

Thanks

Naveen5-Oct-09 19:14

5-Oct-09 19:14

raju_Code wrote:
i need Save and Cancel button //

Read some documentation[^]

Game-point5-Oct-09 19:25

5-Oct-09 19:25

i think its not possible na?

Naveen5-Oct-09 20:06

5-Oct-09 20:06

Pass the first parameter to the CFileDialog constructor as "FALSE". Then you will get "save as" dialog.

Game-point5-Oct-09 20:24

5-Oct-09 20:24

Thanks naveen ..

i finished from SHBrowseForFolder APIs ..

now its working

Thanks for your proper response

David Crow6-Oct-09 3:14

David Crow

6-Oct-09 3:14

raju_Code wrote:
i need Save and Cancel button //

You need them for what?

S p k 5215-Oct-09 22:49

S p k 521

5-Oct-09 22:49

Hi,

You can make use of _splitpath() after getting the complete path to the file.

Regards,
Suku PK