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Here is a simple one for those of you who did it before:
Let's say I know the exact path inside the registry to a certain key and I just need it's value, how do I read the registry ?
Thanks,
Shay
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RegQueryValueEx(), or use CRegKey::QueryValue().
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First of all, thank you.
but can you be a bit more specific and give me a short example?
If I use RegEdit to look for the parameter I am interested in, it is located in: MyComputer\HKEY_LOCAL_MACHINE\System\
It's value is :HOME1
Type:REGSZ
How do I read it into a CString or a char *
Thanks again,
shay
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Shay Harel wrote:
but can you be a bit more specific and give me a short example?
Did you read the MSDN documentation for the two functions I mentioned?
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Yes but I have problems finding what is the lSize ?
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<br />
CString strMainKey = "System\\controlset001\\Control\\session manager\\environment\\";<br />
CRegKey regKey;<br />
CString reg_read;<br />
long lRes;<br />
unsigned long lSize;<br />
<br />
if (m_str_log_name=="")<br />
{<br />
<br />
lRes = regKey.Open(HKEY_LOCAL_MACHINE, strMainKey,KEY_ALL_ACCESS);<br />
regKey.QueryValue(reg_read.GetBuffer(0), "SYMMHOME1", &lSize);<br />
regKey.Close();<br />
reg_read+="\\symmwin\diag6";<br />
<br />
}
I am almost there but the problem is that after I do:
reg_read+="\\symmwin\diag6";<br />
reg_read turns to be only "\\symmwin\diag6"........
any idea why ?
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Per MSDN, the third parameter to QueryValue is:
"[in, out] The size of the string data. Its value is initially set to the size of the szValue buffer."
So, you need to initialize lSize to the size of reg_read. However, reg_read.GetBuffer(0) is pretty useless in this case. I would opt for another value besides 0. Something like 256 should be enough to hold the value.
lSize = 256;
lReturn = regKey.QueryValue(reg_read.GetBuffer(lSize), "SYMMHOME1", &lSize);
regKey.Close();
if (ERROR_SUCCESS != lReturn)
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I want to drag drop files from my application to Windows Explorer. To accomplish this I use COleDropSource and COleDataSource together with clipboard format CF_HDROP. This works.
Now I would like to rename the file during the drag drop operation. From reading the MSDN documentation I think that I have to use the clipboard format identifier CFSTR_FILENAMEMAP as an additional format on the COleDataSource object. This format should contain the new name. But I can't get this to work. Nothing happens. Probably I'm specifying this wrong.
Has anybody done this before? An example or some extra information would be very helpfull.
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I'm trying to create a server which accepts client connections.
....
Address.sin_family = AF_INET;
Address.sin_port = htons(1212);
Address.sin_addr.s_addr = htonl(INADDR_ANY);
IntReturn = bind(Listen, (struct sockaddr *) &Address, sizeof(Address));
IntReturn = listen(Listen, 10);
IntReturn = sizeof(RemoteAddress);
Client[Computer].ClientSocket=accept(Listen, (struct sockaddr *) &RemoteAddress, &IntReturn);
...
Clients from any! ip can connect to my server on port 1212..
My server should not accept connections from any ip, so how do I get my server to only accept connections from example 10.0.0.105 ?
I thought about changing this line
Address.sin_addr.s_addr = htonl(INADDR_ANY);
to
Address.sin_addr.s_addr = inet_addr("10.0.0.105");
but this does not work, am I doing something wrong?
Thanks
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Use a firewall. Winsock doesn't support connection filtering.
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Well, thats not an option, since I'm using it on a LAN.
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Get IP from the connected client. Check if the IP is an accepted IP and if it's an accepted/allowed IP then start sending datta etc. if not, just disconnect the socket.
Rickard Andersson
Here is my card, contact me later!
UIN: 50302279
Sonork: 37318
Interests: C++, ADO, SQL, Winsock, 0s and 1s
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Hello
Does anyone knows a way to let CHtmlView open HTML pages with pictures in the TIFF format?
Thank you in advance
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Hello
Please, help me!
I need a way to place a TIFF picture in the CHtmlView.
Does anyone know how to let CHtmlView to decode TIFFs?
Even a way to place picture code in BMP or JPG format into the WebBrowsers object model would help.
I think it can be done using IHTMLDocument or other similar interface, but could not find how 
Thank you in advance.
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I need to use truetype fonts in a drawing application; in the files generated
by this application, the fonts used are identified not by their font name but by a unique number. I could generate myself arbitrary ID's ans save the associations
ID --> Font name in a separate file.
But of course it would be better if Windows could give me a ID guaranteed to be unique
for each truetype font.
In MSDN i found the structure EXTLOGFONT, which has a member elfMatch :
"A unique identifier for an enumerated font. This will be filled in by the graphics device interface (GDI) upon font enumeration."
Is seems to be what i'm looking for (but not so sure : do these ID change at each
font enumeration ?)
Problem : in MSDN I can't find a function which would output this structure.
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You can not rely on the IDs being unique. They are only unique internally to the running application and that number could be (will be) different every time.
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Thanks. However i would like to experiment ...
Can you tell me how to get that structure ?
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When I am setting up a listener socket, I found that if I use LOCALHOST with inet_addr, that socket can only accept connections from the local machine as indicated in 1) in the following code. However, if I use the machine name, I can accept connections from anywhere but the local machine, as indicated in 2). My question is, is there a way to set up a listener socket that can accept client connections from anywhere including the local machine? Any help will be appreciated.
if ((phostent_far_Hostent = (struct hostent far*)gethostbyname(getenv("COMPUTERNAME"))) == NULL)
{
return INVALID_SOCKET;
}
ZeroMemory((char*)&sockaddr_in_SockAddr, sizeof(sockaddr_in_SockAddr));
1) sockaddr_in_SockAddr.sin_addr.s_addr = inet_addr(LOCALHOST);
2) CopyMemory((char*)&sockaddr_in_SockAddr.sin_addr, phostent_far_Hostent->h_addr, phostent_far_Hostent->h_length);
sockaddr_in_SockAddr.sin_family = phostent_far_Hostent->h_addrtype;
sockaddr_in_SockAddr.sin_port = htons(int_Port_F);
int_SockAddrStructLen = sizeof (sockaddr_in_SockAddr);
if ((SOCKET_Socket = socket(AF_INET, SOCK_STREAM, 0)) < 1)
{
return INVALID_SOCKET;
}
if (bind(SOCKET_Socket, (struct sockaddr*)&sockaddr_in_SockAddr, sizeof sockaddr_in_SockAddr) != 0)
{
closesocket(SOCKET_Socket);
return INVALID_SOCKET;
}
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Your observations are correct. You asked to accept on 127.0.0.1 (localhost), or on a.b.c.d (machine external IP address).
"If an application does not care what local address is assigned, specify the manifest constant value ADDR_ANY for the sa_data member of the name parameter. This allows the underlying service provider to use any appropriate network address, potentially simplifying application programming in the presence of multihomed hosts (that is, hosts that have more than one network interface and address). "
Check out "bind" in your help, You'll find if you leave the address as 0.0.0.0 it should do what you want.
Steve S
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I want to set align for each column in my listview
so I get handle of header control of listview then
use SetItem member function of CHeaderCtrl to do this.
About Align => ok, I got it but I lost all caption
(text) in each column header (no text in headers)
if I use only hdi.mask = HDI_TEXT; >> my texts will
not disappear
What I need to do to set align for each column and
all text is still appear
/////////////////////////////////////////////////
#define LEFT 1
#define CENTER 2
#define RIGHT 3
MyListViewCtrl m_ListCtrl;
m_ListCtrl.cColumnMax = 4;
m_ListCtrl.InsertColumn (0, "#");//left-default
m_ListCtrl.InsertColumn (1, "ID");//left
m_ListCtrl.rgcAlign[1]=1;
m_ListCtrl.InsertColumn (2, "Name");//center
m_ListCtrl.rgcAlign[2]=2;
m_ListCtrl.InsertColumn (3, "Cost");//right
m_ListCtrl.rgcAlign[3]=3;
m_ListCtrl.SetAlign();//set align for all column
////////////////////////////////////////////
void MyListViewCtrl::SetAlign()
{
CHeaderCtrl* pHeader = GetHeaderCtrl( );
HDITEM hdi;
for (int i=0; i<ccolumnmax; i++)=""
="" {
="" char="" buffer[256];="" ="";="" hdi.mask="HDI_TEXT|HDI_FORMAT;
" hdi.psztext="buffer;
" hdi.cchtextmax="256;
" verify(pheader-="">GetItem(i, &hdi));
hdi.fmt = (rgcAlign[i]==LEFT?HDF_LEFT:(rgcAlign[i]==CENTER?HDF_CENTER:HDF_RIGHT));
hdi.pszText = buffer;
hdi.cchTextMax = 256;
VERIFY(pHeader->SetItem(i, &hdi));
}
}
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Check the replies in the microsoft.public.vc.mfc newsgroup.
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Hi,
I am filling my tree control with elements, and each element has an image. but there are some elements that dont need an image. How can I do this? (I ve been stuck on this all afternoon )
I create and load the image list like this:
m_imageList.Create( IDB_SIMULATIONICONS /*name of the bitmap*/,
17 /*size of the bitmap*/,
1 /*ngrow*/,
RGB(255,255,255) /*mask*/ );
m_tree.SetImageList( &m_imageList, TVSIL_NORMAL );
I insert my elements to the tree like this:
HTREEITEM item;
item = m_tree.InsertItem( "Tree Item",
3 /*image index nr.*/,
4 /*selected image index nr.*/
);
I have tried NULL and -1 but it doesnt work. I would appreciate any help.
-thanks
A. Paluszny
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You can't. The only way to do that is to custom draw your Treecontrol, which is not easy. You could display an empty image, but the items position would be shifted from the image width, and it looks ugly IMHO (items seem to hang in the air  )
~RaGE();
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Maybe somebody of you can guide me you to use the QoS SDK in order to use it as a Bandwidth Manager. I've searched for hours but without any success, maybe there is an tutorial or source code available.
thank you
Mario
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