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Yes you can, you just need to include MFC support. Look up this topic in MSDN.
Add MFC Support to an ATL Project
Adding MFC support to a Win32 app is similar.
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I created a template and want to use new to instantiate it. What is the correct format?
new CClass<float,double> m_Class;
Is this correct?
How would I use delete to clean up?
Thanks in advance.
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CClass m_Class;
It is a template you said? If for instance:
template<class T>
class CClass {
};
You'll have to create it this way:
CClass<sometype> m_Class;
Where sometype is the template type you want to instantiate.
Michel
It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.
- TreeBeard
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Yeah, and if u would like to instantiate on the heap, all u have to do is declare a pointer,
CClass <sometype> * m_pClass;
then call new:
m_pClass = new CClass<sometype>;
and whenver u need to free the memory u can call:
delete m_pClass;
and that's it!
Papa
Murex Co.
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I try :
IXMLDOMDocument *p=NULL;
if (FAILED(CoCreateInstance(CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER,
IID_IXMLDOMDocument2, (void**)&p)))
AfxMessageBox("failed");
else
p->Release();
It seems that the class is not registered. I've recently reinstalled the system. Is it a way to register all the usual classes in a shot?
rechi
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How can you tell that the class is not registered? You don't fetch the return value from CoCreateInstance.
Did you call CoInitialize(NULL)? That may be your problem.
Michel
It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.
- TreeBeard
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I've fetched it in some other code. Anyway, the application is a MFC supporting automation so i don't need to call CoInitialize.
rechi
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I think you have to call it. Anyway, just give it a try, so you will be sure you don't have to call it.
Michel
It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.
- TreeBeard
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As expected, it returned S_FALSE, meaning that the library is already initialized on the current thread.
I still think i have to register the class.
rechi
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verify that you have called AfxOleInit() in your InitInstance() code - this is the typical place to put it
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Is called. The application is MFC supporting automation.
rechi
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can anyone tell me how to print on a paper from the user selected tray.
let say.. user enter tray 1, and click on print button, data will be printed on the paper from tray 1 . how can i set that..
i use Devmode for setting paper size. but now i want to use whatever paper size from tray 1.
how can i do that?
what is dmDefaultSource in devmode structure.
thanks
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Is there a trick to using the progress control? When I add it using the resource editor...my dialog simply X|s.
Thanks...
ed
Someday we'll look back on this moment and plow into a parked car.
Evan Davis
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has anyone written a control that does graph layout like GraphViz does only renders the graph to a control - would be nice if you can click on nodes, collapse them etc.
Needs to be free with source  ( Yes I know about Tom Sawyer graph stuff)
Thanks
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I have used the win32 string manipulation routines before, but they still puzzle me somewhat. For example;
char output[255] = "String";
int size = strlen(output);
strlen takes in a pointer to a char. Why then, am I allowed to send it a char array directly? Why does it treat a char array as a pointer to a char?
Simon
I need your clothes, your boots, and your copy of VS.NET.
Sonork ID 100.10024
C++ : The slag of all languages
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Simon Walton wrote:
Why does it treat a char array as a pointer to a char
because, in C, an array is equivalent to a pointer.
char *p = new char[100];
char q[100];
p and q can be usd in the exact same ways.
p[50] = q[50] = 10;
the only differnece is that you need to clean up p when you're done.
-c
Cheap oil. It's worth it!
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I've always suspected this. It's quite strange really. I mean, it's just a block of bytes one after another, why give it special status?
Simon
I need your clothes, your boots, and your copy of VS.NET.
Sonork ID 100.10024
C++ : The slag of all languages
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I have a COM object that starts Microsoft Word and opens a word document. The user can make any modifications to the docunment. I added a special button that is going to be used to save the document and exit Microsoft Word. Unfortunately, I am not sure how to capture the event to know the button has been hit. I have looked through the posts and articles and there is a lot of information if you are an ATL server. But this is an MFC-based COM object and is not an ATL server. Does anyone know what do I need to do, in plain english, to determine when my button has been hit. Am I going to have to make it an ATL server to get the event and if so, how do I do that?
PLEASE HELP!!!!!
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Is it me or is the latest implementation of the _bstr_t class flawed in Visual Studio .NET?
I have a class that has an internal member of type _bstr_t. During construction the _bstr_t classes default constructor runs and sets it's internal m_Data pointer to NULL.
Later i call a function with a BSTR parameter and use the _bstr_t::Assign method to copy the BSTR into my member variable. Under VS6 this code was fine but under VS.NET it crashes.
The reason for the crash is in an ASSERT where the expression is something like (m_Data->GetWString() != s) since m_Data is NULL it crashes! Since it's in an assertion i can compile to a release build and it works ok.
Has anyone else seen this and is there any kind of service pack for VS.NET that fixes the problem?
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I wan to release the memory in CList associated with the element at the head position after reading it. will the RemoveHead() does that? If so, in my application, after reading from the CList, memory usage is not reduced. How to go about it.
Here is the code for reading the CList
void CPLayerApp::ReadFromList()
{
unsigned char data[10],mCnt,mMid;
CMessage* pMess;
CSingleLock singleLock(&m_SyncLock.m_mutex);
CString str="";
while(1)
{
if(m_messList.GetCount() != 0)
{
singleLock.Lock();
pMess = &m_messList.GetAt(m_messList.GetHeadPosition());
mCnt = pMess->m_cnt;
mMid = pMess->m_mid;
pMess->GetData(data);
POSITION pos = m_messList.GetHeadPosition();
m_messList.RemoveHead();
singleLock.Unlock();
if(data[0] == 0x10)
{
str.Format("%0x",data[0]);
AfxMessageBox(str);
break;
}
}
Sleep(200);
}
}
UINT WriteToListThread(LPVOID pParam)
{
CPLayerApp* pPLayerApp = (CPLayerApp*)pParam;
CMessage* pMsg = new CMessage();// = pPLayerApp->m_message;
CMsgList* m_messList = &pPLayerApp->m_messList;
CSyncLock* pSynLock = &pPLayerApp->m_SyncLock;
CSingleLock singleLock(&pSynLock->m_mutex);
unsigned char cnt=3;
unsigned char mid=2;
unsigned char data[14];
data[0]=0x04;
bool bWrite=TRUE;
while(1)
{
if(bWrite)
{
singleLock.Lock();
pMsg->SetValues(cnt,mid,data);
m_messList->AddTail(*pMsg);
singleLock.Unlock();
data[0] += 1;
if(data[0]==0x11)
{
AfxMessageBox("Test");
bWrite=FALSE;
}
}
Sleep(500);
}
return 0;
}
Rsh
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Hi, I create a Win32 dialog (as usual with RegisterClass() + CreateWindowEx() etc).
The dialog itself shows an icon, but when I press ALT+Tab I see no icon. Anything I missed? Thx for help!
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Anonymous wrote:
The dialog itself shows an icon, but when I press ALT+Tab I see no icon. Anything I missed?
Nope, this is "By Design". A firetruckin' stupid design if you ask me (and I've only heard similar negative statements re. this, never one nice word about it).
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Mike Nordell wrote:
Nope, this is "By Design".
there is nothing I can do against? Hmm, like handling a message...?
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