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I have designed a class for win32 (not mfc) which takes a bitmap , makes a region of it and then draws that bitmap on the window canvas.(skin stuff)
I use a memory dc to speed things up.
However when i quickly move the window it still leaves prints behind.
I don't use any own code to move the window, i intercept the NCHITTEST message and respond with return HTCAPTION;
I have tried writing my own code for WM_LBUTTONDOWN, WM_LBUTTONUP, WM_MOUSEMOVE to allow tracking and moving of the window and then use SetWindowPos to actually move the window but this sollution leaves even more trails behind. I also capture the WM_ERASEBKGND message.
Any idea on how to speed it up? The only thing i can think of is not moving the window but showing a rectangle of the new window position when people are dragging the window. I tried something like that but got into trouble. I was using a hdc that i got via ::GetDC(NULL) since i need to draw on top of everything else then but i couldn't find a good way of deleting my previous rectangle.
I have looked at other samples for skinwindows but they al seem to use the same draw stuff like i do.
Does anybody have a sample program for this or know how to speed up the drawing without leaving a trail?
Thanks.
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Ever since I installed one of the Service Packs for Visual Studio 6 I have been seeing stray files in my \Windows directory. For instance, one of them there today is "fffe09cd_{EBCCC94F-1148-4B95-8DC0-6FD293E98B0C}.tmp". It seems I get these everytime I reboot and they are not deleted unless I go do it myself.
Anyone know the story and how to stop these files from clogging up my directory?
Thanks!
John Hagen
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I wanna to change the name of network drive connected to Win2K server.
The default drive name is like this : "my folder : (f "
How can I change this network drive name?
Thanks, in advance.
Have a good day!.
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Hi
In my project, I need my app to "wake up" once a minute. Currently, I use a timer for this. It seems that when some games is running, the app fails to wake up. Can this be cause by some for me unknown DirectX-stuff?
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It might be because the game uses *all* of the CPU, and your app doesn't get any CPU-time to do anything...
- Anders
Money talks, but all mine ever says is "Goodbye!"
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The problem is probably the game using DirectX's exclusive mode.
That's all I know - I don't know a better way to do it but I thought by suggesting that as a cause it might trigger someone else (or yourrself) to find a solution.
> Andrew
"Do you like my mask, it raises the dead...!"
-- Buffy (season 3, Giles)
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My version of MSDN says
"The exclusive (full-screen) mode does not prevent other applications from allocating surfaces, nor does it exclude them from using DirectDraw or GDI"
Is this outdated?
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I am working at tree view. My application is just like Address Book of Windows. I am using instance TV_INSERTSTRUCT to insert items in tree view. It works well in this way. I also save TV_INSERTSTRUCT instances for all items in array. After adding few items I delete all item at runtime and again inserts those item from array, which already have instance of TV_INSERTSTRUCT of previously, inserted and deleted items. But this time only first two items are inserted and all others are not shown in Tree view window. Can some body help me to solve this problem.
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Hi everybody,
Does someone know if there is a way to present a table like a real table in a list box ?
Thank you in advance
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I to all,
does anyone know how to use the LVS_EX_FLATSB style on a CListCtrl class?
I can display the scrollbar, but I can do anything with it : it's disabled  .
Thanks to anyone. .
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m_List.SetExtendedStyle(m_List.GetExtendedStyle()|LVS_EX_FLATSB);
Jerzy
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I agree you solution, but my problem is that the scrollbar (when displayed) is always disabled!
Can you tell me why?
Thanks.
Massimo
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a scroll bar in list box is disabled until it needs to be enabled, ie its enabled when there are mroe items in list box than the list box can show at one time.
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My problem is that the ListCtrl is not empty! but have some items loaded .
Thanks.
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in my program i use a list of pointers to objects like this:
class object
{
public:
int x;
int y;
};
class A
{
public:
std::list<object*> list_b;
};
now.. i do have got problems, because i should sort this list by object.x . i have tried to use te list::sort() function.. but it obviously doesn´t work, case the program doesn´t know how to compare this objects..
is there any member function i can override?
or is there any possibility how to use a set instead of that (would be perfect) ?
i am sorry.. i really tried to find a solution on my own.. but in all the docs and webpages i was searching in this problem seemed to be too obvious... so nobody ever told me how to do this
thanx in advance
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Use the code below, just don't ask why it's done this way.
template<>
struct std::greater<object *>
{
bool operator()(const object* &lhs, const object* &rhs) const
{
return (lhs->x < rhs->x);
}
};
std::list<object *> lst;
lst.sort(std::greater<object *>());
Tomasz Sowinski -- http://www.shooltz.com
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Hi,
I would like to be able to create small thumbnail previews of word documents and HTML documents.
Can anyone offer any advice.
Cheers
Rich
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Check out IViewObject::Draw, one parameter lets you specify DVASPECT_THUMBNAIL
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I am wondering if there is possibility to strip zeroes from floating point number using printf () function. I searched all printf options and didn't find any suitable one. Is there any other function convenient for this easy task?
Example: I have an array of doubles and I want to display them with .3 precision:
printf ("%.3f\n" f[i]);
Some numbers will look like 45.100 and some like 568.897. In case of 45.100 I want it 45.1 without trailing zeroes.
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I searched all printf options and didn't find any suitable one.
Well, your search quality isn't very good. Use %.3g, 'g' instead of 'f' will strip trailing zeros.
Tomasz Sowinski -- http://www.shooltz.com
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How can switch the different view in the SDI with the docking TreeCtrl?
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May I know what MFC class is suitable to act as a canvas that used to
display an animating frame image. I want to add that canvas on my dialog based
application.
thank you.
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just can tell you how i do this..
i don´t think that this is the best solution.. but it works..
you have to make a new CView derived class (works with the derived classes like CScrollview perfectly too).. then you change the CView into a control. (like paul dilascia did it in the c++ q&a in msj jan 2000)
in this control you can do whatever you would do in the view..
don´t be afraid.. it is not as complicated as it may sound like.. all you have to do is to override 3 or 4 member - fun´s..
but i don´t have got the energy right now to post in the whole thing.. but if anyone is interested in my solution you can write me an email..
and if anyone of you knows a better aproach.. i would be happy too..
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Could somebody please help me with this?
I have a client program and server program... I am just testing if data in specific structure is being sent to the server program..... ok... In my client program there are 3 edit boxes.. so i want these three variables being sent to server program.. so let me just write down some of source codes... and please modify it... Everthing related to socket
works fine... Using IP addresses, the client project can be connected to Server project. I guess it's a matter of receiving
datas in the structure from the server. Garbage datas are being sent to the server program....
//Those 3 variables for Edit Boxes...
CString m_Age;
CString m_Email;
CString m_Name;
// class
class sMsg
{
public:
char cUserEmail[50];
char cUserAge[10];
char cUserID[10];
};
// Client program
void CStructTestClientDlg::OnSend()
{
// TODO: Add your control notification handler code here
UpdateData(TRUE);
sMsg *msg = new sMsg;
strcpy(msg->cUserID,m_Name);
strcpy(msg->cUserAge,m_Age);
strcpy(msg->cUserEmail,m_Email);
m_ClientSocket.Send((LPVOID)msg,sizeof(msg));
}
//Server Program
void TChildSocket::OnReceive(int nErrorCode)
{
sMsg *msg = new sMsg;
m_pServerSocket->Receive(msg,sizeof(msg));
CString i = msg->cUserID; //(just checking if one variable could be printed out....)
AfxMessageBox(i);
}
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m_ClientSocket.Send((LPVOID)msg,sizeof(msg)); You should use sizeof(sMsg) or sizeof(*msg), or you will send/receive only 4 first bytes of your message.
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