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I was recently looking at a piece of sample code to stop more than one instance of your app from being opened in which is uses a mutex along with your app's GUID. I know how to use the guid generator, but then what? Is a guid automatically generated for a regular mfc dialog app? if not and I create one, what do I do with it? How important is it for you to have a GUID for your app?
Who are all these people and what are they doing in my house?...Me in 30 years, inside a grocery store
My articles[^]
bdiamond 
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See This Link
http://www.codeproject.com/dialog/MessageMgmt.asp#GUIDGEN[^]
Quoted From The Link Above
"
But there is a way around it. There is a program which is part of the SDK, called GUIDGEN. What this program does is create a unique 128-bit binary value. Each time you create a new Globally Unique IDentifier, a GUID, you can be sure that it is really, truly, unique. It is not only unique for you, it is unique for everyone, everywhere, all the time. It incorporates the time and date, the MAC address from your network card (and if you don't have a network card, it uses another method, which has something like one chance in 263 of conflicting with another GUID), and a bunch of other information. Therefore, there is no way, short of explicit collusion between two programmers, that they will use the same GUID.
"
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The reason the GUID is suggested is because they were creating a mutex and or other kernel object. The kernel object name space is shared among all processes on a system. So, using a STUPID name for a mutex like 'SingleInstance' is likely to get you into trouble later on when some other dolt uses the same name. If you name your mutex "MyNiftyApp_07DD65CCE50F46a09840D62B8DFD72C5", then the odds someone else could pick that name 'accidentally', by design, or just genetic cruelty, is extremely small.
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this is more along the lines of what I was looking for. Thanks!!
Who are all these people and what are they doing in my house?...Me in 30 years, inside a grocery store
My articles[^]
bdiamond
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I've seen this done before, I thought somewhere on this site, but I can't seem to find it. Can anyone point me in the right direction for putting a dialog into a static picturebox control? Any help is appreciated. Thanks
Who are all these people and what are they doing in my house?...Me in 30 years, inside a grocery store
My articles[^]
bdiamond
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the static is usually used as a placeholder ( or a size and position reference ).
You simply need to create a modeless dialog and Create it in the parent dialog and place ( MoveWindow ) to fit the size of the placeholder.
One thing to remember is to disable the default ok and cancel behaviours so that you don't end up closing the child dialog while the parent dialog is still alive.
here's one example, here on CP :
an example
Maximilien Lincourt
Your Head A Splode - Strong Bad
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perfect! thanks
Who are all these people and what are they doing in my house?...Me in 30 years, inside a grocery store
My articles[^]
bdiamond
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how can I create a process and deny it to show any window?
For the first window I can set the flag in the startupinfo but for all the other windows that a process can create how can I hide or destroy them?
here a little example
ZeroMemory(&startupInfo,sizeof(STARTUPINFO));
startupInfo.cb = sizeof(STARTUPINFO);
startupInfo.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
startupInfo.wShowWindow = SW_HIDE;
startupInfo.hStdOutput = NULL;
startupInfo.hStdInput = NULL;
startupInfo.hStdError = NULL;
success = CreateProcess ("c:\\windows\\notepad.exe", "notepad.exe aaa", NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &startupInfo, procInfo);
if (!success){
printf("error");
exit();
}
in this example notepad start successfully, the main window isn't showed but the messagge box appear, I want to hide this messaggebox and every other "window" or message that a generic process can create on the screen, how can I do this?
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Can someone give the way to load a particular form or dialog on execution of an MFC appwizard application?
Drushti
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That depends on how you made the application. If you're using the document/view architecture then just make the view class a CFormView (it's the last step when using the wizard).
If not then use this workaround:
(a) Create a dialog resource, and make a class for it. MAKE SURE TO OVERRIDE THE OnOk and OnCancel functions.
(b) In your application add the dialog as a member variable.
(c) In your applications' OnCreate function, create the dialog by calling CDialog::Create, put WS_CHILD | WS_VISIBLE for the style. DO NOT CALL DoModal.
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I want to compile a source code for my pocket pc. It requires the gcc compiler.
The command to compile is as follow:
arm-coff-gcc -S -o CODE.S -mcpu=strongarm1100 -O3 \
-I/usr/local/lib/gcc-lib/arm-coff/3.1/include -I/usr/include CODE.c
I want to know how can I get a copy of GCC for ARM? Is there anyone know about it?
Thanks,
A. Riazi
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Start at:
http://gcc.gnu.org/
Installation could be difficult. On Windows you might need mingw or cygwin to start with. I'm not sure where to go from there. Even on Unix type systems, installation is not exactly trivial. Take your time, search the web and mailing lists to see who has done this. Read all the documentation you can find, then start installing.
gcc is perhaps the most common compiler for any system other than windows. There are better ones in most cases, but it is hard to argue with free, so gcc gets used everywhere. As a C compiler it is good to excellent, for C++ it works, but that is about all you can say.
P.S. If you don't find useful documentaiton, write a log of what you do. When you get it working post instructions someplace. Others will thank you.
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CString cs="http://company.com/some.html";
CWebBrowser2.Navigate(cs, 0, 0, 0, 0);
if the URL above is unavailable, the html page can not be opened - but how can I know about that programmatically?
thx
includeh10
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Hi all,
Please could someone tell me if there is an event which is triggered when a window has completed painting?
I am using “OnShowWindow”, however, it is not possible to ask questions at this stage regarding button states as the window has not been drawn.
Is there another event which I can us that indicates the completion of the drawing of the window.
Thanks for your help
Phil
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What are you trying to do here ? I don't quite get the scenario
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You could hook the EndPaint function call for your application.
Then you would know when EVERY SINGLE WINDOW in your entire program was done painting.
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Hello,
who can tell me how to use the interface IFilterChain correctly?
I have a filter graph in which I would like to pause some filters and play others...
I tried the methods of this interface but wihtout success...
Thanks a lot for your help !
There is no way to happiness, happiness is the way !
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plz help in h323 protocol implementation in vc++
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Hello!
I'm currently writing some documentation for my program and the program should be able to open the CHM file and view a specific HTML page of it.
How can I open a CHM file and define what page it should display when loaded? And no, I cannot use the HtmlHelp API function, I must use ShellExecute, WinExec, or something like this.
Thanks and best regards,
Dominik
_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do?? 
(doesn't work on NT)
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Hi,
I want to ask three question:
1.open file *.dbf in VC6 ?
2.how to load bitmap image from resource(use funtion Loadimage)?
3.how to process control run with indentify time left?
Thanks very much !
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Load Image:
HBITMAP hBitmap =
(HBITMAP )LoadImage(AfxGetResourceHandle(),
LPCTSTR(IDB_BITMAP),
IMAGE_BITMAP, 0, 0,
LR_CREATEDIBSECTION);
LR_CREATEDIBSECTION ensures colours in your bitmap not mapped to the system palette.
Did not understand other questions.
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for the .dbf you can use a crecordset object. For the connection string, there's an article on this site called "ADO Connection Strings" that will work
Who are all these people and what are they doing in my house?...Me in 30 years, inside a grocery store
My articles[^]
bdiamond 
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Hi,
I want to enlist local drives with their icons in the combobox . How can I do that?
Drushti
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Hello Madame Nazar
I think this little piece of code can help you
[code]
CString CNMPDrivesClass::NMPChangeToBinary(DWORD dwVar)
{
long j=(long)dwVar;
int i,k=0;
char Binary[20];
CString str;
str.Format("%d",j);
while(j!=0)
{
i=j%2;
j=j/2;
if(i==0)
Binary[k++]='0';
else
Binary[k++]='1';
}
str.Format("%s",Binary);
return str;
}
void CNMPDrivesClass::NMPReturnNoOfDrives(CUIntArray &NoOfDrives)
{
CString str;
DWORD dwordVar=::GetLogicalDrives();
str=this->NMPChangeToBinary(dwordVar);
for( int drive = 0; drive < 26; drive++ )
{
if(str.GetAt(drive)=='1')
{
NoOfDrives.Add('A'+drive);
}
}
}
[/code]
-----------------------------
"I Think It Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk
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Hi Mr. Alok,
Thanx for replying. Now can u please tell me how am I going to connect this code to my combobox.So that logical drives are visible.I have compiled your code. Its error free. But am not getting when and where to call NMPReturnNoOfDrives function in my application??
Thanking u in advance,
Drushti
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