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Instead of calling the underlying interface's Release function, call the class's Release method.
So, instead of :
<br />
pMyInterface->Release();<br />
Try:
<br />
pMyInterface.Release();<br />
<EDIT>
But the ATL class will do this automatically for you when it goes out of scope, so you don't need to explicitly do this<
;EDIT>
I Dream of Absolute Zero
-- modified at 9:07 Sunday 16th April, 2006
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This is by design. The reason in that when you call Release through a smart pointer you've probably just introduced a bug into your code - So ATL disallows it. He's some code which shows why this is the case:
{
CComPtr<IDispatch> spDisp;
CoCreateInstance(CLSID_SomeObject, NULL, CLSCTX_ALL, IID_IDispatch, reinterpret_cast<void**>(&spDisp));
spDisp->Release();
}
Steve
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The reason why I have been using the operator "->" is that I always treat a smart pointer as a pointer, now I think it through that it is a object class CComPtr<...>
Thank you all very much!!!
-------------------
I am learning C++ and English
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Hi.
I was wonder how can I set multiple instances of one dll file,
see the following:
<br />
<br />
typedef void type_SetX(int x);<br />
typedef int type_GetX();<br />
<br />
type_SetX *SetX;<br />
type_GetX *GetX;<br />
<br />
HINSTANCE h1 = LoadLibrary("foo.dll");<br />
HINSTANCE h2 = LoadLibrary("foo.dll");<br />
<br />
SetX = (type_SetX *)GetProcAddress(h1, "SetX");<br />
GetX = (type_GetX *)GetProcAddress(h1, "GetX");<br />
<br />
SetX(5);<br />
Print( GetX() );
<br />
<br />
SetX = (type_SetX *)GetProcAddress(h2, "SetX");<br />
<br />
SetX(8);
<br />
Print( GetX() );
The var X inside the dll is not static of course.
Any idia how can I manage multiple instances of the same dll ?
Thanks,
David
-- modified at 8:39 Sunday 16th April, 2006
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Hi David,
I'm not sure , but have you tried to use different function pointers for each instance of the DLL?
Regards,
Eli
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Hi Eli.
Yes, but it doesn't matters because LoadLibrary() always return a pointer to the same instance.
I wrote a simple test code:
<br />
<br />
HINSTANCE h1 = LoadLibrary("Foo.dll");<br />
HINSTANCE h2 = LoadLibrary("Foo.dll");<br />
<br />
bool IsSame = (h1 == h2);<br />
<br />
well, IsSame = true...
Maybe the rule states: One instance of a DLL-File per process.
And my only way is to inject it to a thread...
Thanks,
David
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Virtek wrote: HINSTANCE h1 = LoadLibrary("Foo.dll");
HINSTANCE h2 = LoadLibrary("Foo.dll");
bool IsSame = (h1 == h2);
You're seeing the correct behavior, that's how DLLs work. The second LoadLibrary() sees that the DLL is already loaded, so it just increments the reference count.
--Mike--
Visual C++ MVP 
LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ
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Hi,
I need to find all files in a certain directory that are in the format of: file.001, file.002, etc (the numbers in the file extensions can go up to infinity...).
I am using the functions FindFile and FindNextFile to do this (my code is below). The problem is that in the same directory there might also be files named file.x or file.y (for example) which I don't need to find.
I only need the files with the number extensions.
Is there a way to do this?
this is my code:
sSearchPath.Format("file.*");
BOOL bWorking = f.FindFile(sSearchPath);
while (bWorking)
{
bWorking = f.FindNextFile();
CString strFileName = f.GetFileName();
}
Thanks
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I dont know if this code work with but this what I used
int i=0;
WIN32_FIND_DATA info;
HANDLE hp;
sprintf(fileFound, "%s\\*.tga", folderPath);
hp = FindFirstFile(fileFound, &info);
if(hp== INVALID_HANDLE_VALUE)
return;
do
{
sprintf(fileFound,"%s\\%s", folderPath, info.cFileName);
// DeleteFile(fileFound);
i++;
}while(FindNextFile(hp, &info));
FindClose(hp);
ShowMessage(i);
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I don't understand, are u looking for all files that have a .tga extension?
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Thanks for your help - but that's not what I need...
I need to look for a files that have the same file name each time, but have different extensions.
For Example, in my directory there are the files:
file.001
file.002
file.x
file.y
so, I don't need to find the files file.x or file.y. I only need to find the files that have an extension that consists of numbers.
The problem is that when I search for files in the format: "file.*", it finds the files named file.x and file.y which I don't need.
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ok
for(.............etc.)
sprintf(fileFound, "%s\\file.00%.1d
",ARRAYOFCONST((folderPath,i)) );
now you can search for ectintions
from 001 to 009
-- modified at 9:20 Sunday 16th April, 2006
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yes - but I don't know what the maximum number the extension could have. There could be a file named file.9999 for instance..
so I can't search until infinity. That's my problem.
Maybe there is a way to check if the extension contains only numbers or something like that. Do you know?
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I dont remember the function name but try this
sSearchPath.Format("file.*");
BOOL bWorking = f.FindFile(sSearchPath);
int j = 0, i++;
while (bWorking)
{
CString strFileEx = ExtractFileExt(f.GetFileName());
while(strFileEx [j] != '\0' )
{
if(!((int)strFileEx [j] >= (int)'0' && (int)strFileEx [j]<='9'))
i++;
}
if(i>0)
//do what you want to do
bWorking = f.FindNextFile();
}
-- modified at 9:57 Sunday 16th April, 2006
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Thanks!
But what is the function "ExtractFileExt"? my code doesn't recognise it. do I need an include for it or something?
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Why not just use PathFindExtension()?
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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SWDevil wrote: Maybe there is a way to check if the extension contains only numbers or something like that. Do you know?
Yes, it's called isdigit().
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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For each file found, including file.x and file.y, simply check the extension to see if it is all digits or not.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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what you can do is determine the extension of the file using GetFileName and GetFileTitle. Then for each charcter in extension check if its a digit using isDigit function. If all the characters in extension are digit then keep file else move to next file.
-Saurabh
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hi
I just want to know how could I send a save command to another program like notebad from my program.instade of clicking save from file menu
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Hi shortwave,
You can use findwindow for get hwnd from application and use
sendmessage(hwndapplication,wm_command,idmenu(item),handlemenu);
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I am using a read-only edit control in MFC.
New text is added to the end of the edit text ).
How can I tell it to scroll as far down as possible automatically so that
the latest text is always visible?
can anyone help me
naz
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