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do you need to include a BITMAPFILEHEADER?
you made sure m_pBuffer is UCHAR or BYTE or something (8 bit image) or a short* for 16 bit image, etc.?
how about trying to grab the lines backwards (and as lines, instead of bytes)?
<br />
for iLine=LastRow-1,iLine>=FirstRow,iLine--){<br />
line = m_pBuffer+iLine*Width+FirstCol;<br />
}<br />
.. I know that sounds silly but my bitmap storing alg. is written so that I grab the bits starting from the last row, so maybe it'll work
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Thank you, I use the BITMAPINFO that also contains the BITMAPINFOHEADER
"m_MarkBitmapinfo.bmiHeader"
It's kinda strange. For my live video i "precreate" a HBITMAP variable.
m_HBitmap = CreateDDBFromPixel(..x,y,bpp...);
Guess, after that memory has been allocated somewhere.
Then i can use SetDiBits(....)
For Testing i fixed the size of the rubberband and set it to
(0,0); (200,200). Means, that i have to copy from origin 200 bytes per line.
I will check out ur suggestions.
I cant explain myself why its not working.
In the same way I create my live video for my dialog.
In my Dialog constructor i allocate memory for my livevideo bitmap
m_HBitmap = CreateDDBFromPixel(...).
I get the videobuffer and in the OnPaint i draw the captures image ( video)
::SetDIBits(NULL,m_HBitmap,0,480,pBuffer,&m_Bitmapinfo,DIB_RGB_COLORS);
CBitmap* pBitmap = CBitmap::FromHandle(m_HBitmapLive);
CDC cdc;
cdc.CreateCompatibleDC(&dc);
CBitmap* pOldBitmap = cdc.SelectObject(pBitmap);
dc.BitBlt(m_LivePosition.TopLeft().x,m_LivePosition.TopLeft().y,m_LivePosition.Width(),m_LivePosition.Height(),&cdc,0,0,SRCCOPY);
cdc.SelectObject(pOldBitmap);
ReleaseDC(&cdc);
cdc.DeleteDC();
So, when i mark an area on this live video, copy the bits and create the image and set the bits on the same way i do for my live video, why it does not work ???
It's the same, except that it's small in resolution. I set the BITMAPINFOHEADER according to this smaller esolution and so on. Even if i had copied the wrong bits the created image would have contained bytes of an other area. But very often the pictures are pure chaos.
cmos
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Did you ever figure this out?
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"Did you ever figure this out? "
What ?
By the way, can anybody tell me what is the byteorder in the
VIDEOHDR buffer (lpData).
My Pictures are not upside down. But if i copy
240 lines instead of 480 lines, the upper half of my pictures
isnt there. For me it looks like, the line are stored buttom up in the
bytearray.
im totally confused with this.
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hi
i have created adialog based application where each of them call the other using DoModal().
my question is : if Dialog A is in some position on the screen and then called Dialog B...i want for Dialog B to take the same exactly position as Dialog A .(to be on top of it )...
how can i do that??
thanks
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you want to..
<br />
RECT rect;<br />
CWhateverDlg nextDlg;<br />
...<br />
GetWindowRect(&rect);<br />
nextDlg.SetWindowPos(...) <br />
<br />
and then maybe you'll have to..
<br />
nextDlg.RedrawWindow(&rect,NULL,RDW_UPDATENOW);<br />
this is in the InitDialog function of one of your Dlg's.
modified on Tuesday, June 3, 2008 7:53 PM
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I am having trouble with gethostname(). The code compiles correctly but the function returns an unknown error. I have compiled on VC6 and .Net2005 platforms. While in VC6, the buffer remains empty, in .Net2005, it gives me unknown error. Why does this occur?
char myname[256];
memset((void*)myname,0,sizeof(myname);
if(!gethostname(myname, sizeof(myname)))
{
int _temp = WSAGetLastError();
if(_temp == WSAEFAULT)
MessageBox(NULL,"Socket creation failed; Attempt to get host name failed; WSAEFAULT ","Lamia",MB_OK);/* who are we? */
if(_temp == WSANOTINITIALISED)
MessageBox(NULL,"Socket creation failed; Attempt to get host name failed; WSANOTINITIALISED ","Lamia",MB_OK);
if(_temp == WSAENETDOWN)
MessageBox(NULL,"Socket creation failed; Attempt to get host name failed; WSAENETDOWN ","Lamia",MB_OK);
if(_temp == WSAEINPROGRESS)
MessageBox(NULL,"Socket creation failed; Attempt to get host name failed; WSAEINPROGRESS ","Lamia",MB_OK);
else
MessageBox(NULL,"Socket creation failed; Attempt to get host name failed; error unknown","Lamia",MB_OK);
}
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That is because there is no error!! You should look carefully at the value retuned by gethostname. From MSDN - "If no error occurs, gethostname returns zero. Otherwise, it returns SOCKET_ERROR and a specific error code can be retrieved by calling WSAGetLastError". So you should not use if(!gethostname()) it will go into if when function is successful.
-Saurabh
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Did you called WSAStartup() ? See the code block.
WORD wVersionRequested;
wVersionRequested = MAKEWORD( 2, 2 );
WSADATA wsaData;
int err = WSAStartup( wVersionRequested, &wsaData );
koumodaki wrote: char myname[256];
memset((void*)myname,0,sizeof(myname);
BTW, one more suggestion, Instead of using memset, you can directly initialize the array. For instance,
char myname[256] = { 0 };
Regards,
Jijo.
_____________________________________________________
http://weseetips.com[ ^] Visual C++ tips and tricks. Updated daily.
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The Problem is only with the intialization of WINSOCK.
Sudhir Kumar
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Hi,
In my application LoadString works fine for English resource and fails for Japanese resource.
Could some one give me some info regarding this?
Thanks.
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Member 1003415 wrote: ...fails for Japanese resource.
Have you tried calling GetLastError() to find out why?
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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DavidCrow wrote: Have you tried calling GetLastError() to find out why?
Or more easily by adding @err,hr in watch window. 
Regards,
Jijo.
_____________________________________________________
http://weseetips.com[ ^] Visual C++ tips and tricks. Updated daily.
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I am getting this LNK6004 compilation error.
i checked the link incrementally in the settings/link
but still the same problem
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Member 1003415 wrote: but still the same problem
Have you done a "rebuild all" since?
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hi
I know I can use SNMP to get a lot of information from printers. But I'd like to know if I can stop users from printing if the total number of printed pages exceed some value, say 4000.
The printer in use is Xerox Phaser 4510, there are about 50 of them. I've already tried changing configurations by code, using SNMP++ but many printer attributes are read-only (including the one's to set the print host access list).
I'm open to alternatives!
Thanks, Icaro.
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How do I cast(not the C style cast plz) _bstr_t to CString?
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Try this code:
_bstr_t bstr(_T("_bstr_t toCString test"));
CString str;
W2A(bstr, str.GetBuffer(256), 256);
strName.ReleaseBuffer();
Sudhir Kumar
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you code is not consistent. W2A() gets only one parameter, which is the string to cast.
also GetBuffer() is in its good use here (rarely goodly used, to it's important to notice it !) but it's not necessary. prefer using the CString::operator=() instead, and don't use W2A() but T2A() if the source is unicode independent (otherwise, it's your _b_str construction which shouldn't use _T())
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Have you even tried:
_bstr_t b("This is very hard.");
CString c1 = (LPCTSTR) b;
CString c2 = static_cast<LPCTSTR>(b);
"Love people and use things, not love things and use people." - Unknown
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hey man, no C-style cast plz!
(coz 2 simple, plz plz urgent!)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- 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.
-- Iain Clarke
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