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Hi
Iam trying to create a CRichEditCtrl ( like a popup wondow ) to display a certain text within a CListCtrl when the length of hte text in one of the column of the ListCtrl exceeds 256 characters.
This i smy problem :
y = 10 ( say )
CRichEditCtrl* myCtrl -= new CRichEditCtrl;
myCtrl->Create(WS_VISIBLE | WS_POPUPWINDOW | ES_AUTOVSCROLL | ES_AUTOHSCROLL | ES_READONLY , CRect(x,y - 20, x+ 70, y - 90 ),
this, 5001);
where this refers to the Handle of the Parent Window
the application crashes at this point. Pl. explain me the reason.
regards
Sankar
regards
Sankar
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It seems that rich edit can't be a popup window - it must be a child. That's what MSDN says about CRichEditCtrl styles:
"Apply the following window styles to an edit control:
WS_CHILD - Always."
You should create a popup as CWnd-derived class. This popup window should have one child - CRichEditCtrl, probably occupying the whole client area.
Tomasz Sowinski -- http://www.shooltz.com.pl
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(Sorry, I'm cross posting this to both the VB and C++ forums as it covers both).
I have a common problem - I need to show the modeless forms which reside in a VB ActiveX Dll, called from an MFC client app.
I know that it isn't possible to show a modeless form in a VB ActiveX DLL (unless VB itself is also the client), because the modeless form needs to hook into a message loop to receive windows messages. The MSDN docs state that VB looks for something called the 'component manager' on the client to hook into which MFC doesn't provide.
Has anyone worked out how to get around this? Is is possible to mimic the functionality of the component manager in the client app, or at least the parts the modeless form is looking for? What is the myterious interace the VB is looking for? Am I on a hiding to nothing here?
Thanks
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Hi there,
Is anyone knows how to determine installed browsers and java engines versions using Visual C++ ?
Best regards, Kiril Kostov
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Call me stupid, but how do you Navigate to html stored in RAM, rather than a file or URL? Am I going to have to create a temporary cache file first?
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You can use resources like this.
res://module_name/ resources_name
good luck,
Dror
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Hello, Everybody
I just used paintlib and jpeglib to save my screen capture as a JPEG file. In some application it works but in some it does not work. Don't know why. If you know any source code to do the screen capture and save it as JPEG, please give me an direction. Thank you very much.
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this code will capture the screen and put it in a HBITMAP, you just then have to save it to a file
CDC dcScreen;
CDC dcMem;
CRect rc (m_lLeft,m_lTop,m_lRight,m_lBottom); // set this to be screen coords of window you want to grab
dcScreen.CreateDC(_T("DISPLAY"), NULL, NULL, NULL);
// create a memory DC compatible to screen DC
dcMem.CreateCompatibleDC(&dcScreen);
// create a bitmap compatible with the screen DC
HBITMAP hbmp = ::CreateCompatibleBitmap(dcScreen.m_hDC, rc.Width(),rc.Height());
// select new bitmap into memory DC
HBITMAP bmpOld = (HBITMAP)::SelectObject(dcMem.m_hDC,hbmp);
// bitblt screen DC to memory DC
dcMem.BitBlt(0, 0, rc.Width(),rc.Height(),&dcScreen, rc.left, rc.top,SRCCOPY);
// get screen image
hbmp = (HBITMAP)::SelectObject(dcMem.m_hDC,bmpOld);
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I need to save struct to file as text file(not binary)
How can I do it.
Please detail if you can.
Thanks
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Assuming your struct has integers, use CString::Format() to make a string representation of the numbers, and write that string to the file.
--Mike--
http://home.inreach.com/mdunn/
#include "buffy_sig"
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#define ID 10
#define NAME 26
typedef struct person{
char id[ID];
char name[NAME];
}person;
typedef person* p_person;
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I want that in my file will be write:
________
id
name
time
________
but I dont success.
This is my code:
____________
str = "\n"; //not work !
file.SeekToEnd()
file.Write(p->id, sizeof(char)*ID);
file.Write(str, str.GetLength());
file.Write(p->name,sizeof(char)*NAME);
file.Write(str, str.GetLength());
file.Write(str_time, str_time.GetLength());
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Does anyone know the functions windows calls to do an addnetwork connection. I do not want to assign it to a drive though, but rather treat it as a webfolder.
Thanks for any help
qVL
qluu@limitless.ca
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Is there any method that convert a CTime in seconds? Thanks
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Hi there,
You should look at CTimeSpan. (CTime - CTimeSpan = CTime...)
CTimeSpan has a function called GetTotalSeconds(),
example:
CTimeSpan myDiff(0,1,0,0); // 0 Days, 1 Hour, 0 Min, 0 Sec
ASSERT (myDiff.GetTotalSeconds()==3600);
hope this helps
Olli
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Hello,
I have a program written in Visual C++ and I want to add some codes that can help me know
this program is being debigged (ex: in debug mode in Visual C++ ) in run-time.
Does anybody know how to do that ?
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there is _DEBUG macro if your project's active configuration [Build->Set Active Configuration]is derived from Debug.
So you can check like this
#ifdef _DEBUG
//Run this code if in debug mode
#else
//Run this code if not in debug mode
#endif
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There's a function you can call. I forget the name but it's something like IsDebuggerEnabled().
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I get crappy things when I try and return a CString. It goes a little like this...
CString lotsofcrap;
blah blah
return lotsofcrap;
ERROR Unhandled exception...yadda yaddda
CString::CString(const CString& stringSrc)
{
ASSERT(stringSrc.GetData()->nRefs != 0); //**** DEBUGGER GOES TO THIS LINE
if (stringSrc.GetData()->nRefs >= 0)
{
ASSERT(stringSrc.GetData() != _afxDataNil);
m_pchData = stringSrc.m_pchData;
InterlockedIncrement(&GetData()->nRefs);
}
else
{
Init();
*this = stringSrc.m_pchData;
}
}
------------------------------------------------------
Why do it now when you can put it off and do it tomorrow?
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K....
CString CLUPort::BuildStartCommand()
{
LUMessage msg;
CString strConnect;
memset(&msg, 0, sizeof(LUMessage));
msg.start.cmd = START;
msg.start.crc16 = crc16_checksum((byte_t *)&msg, sizeof(msg.start) - 2);
msg.start.crc16 = TO_buint16(msg.start.crc16);
memcpy(&strConnect, &msg, sizeof(msg.start));
return strConnect;
}
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It's the memcpy bit - you need to get a pointer to the buffer and store data there rather than over the string object itself. See GetBuffer (I think) - also don't forget you need to make sure the buffer is of the correct length.
> Andrew.
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