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I'm using VC++ 2005, and have a Solution with 5 projects. I also have a common library on my computer which contains 20+ headers and 20+ .cpp files (no .lib files or .dll, all are source codes only). I have set the default path for include in VS2005 pointing to my library folder. My questions are
1. When i create a new project (in the same solution), i have to add all the .h and .cpp from my library manually in to the project. Without adding the .cpp, it would not link. If i have 5 projects, i would have to do that 5 times. Anyway to avoid this?
2. Because 5 projects are sharing the same set of library (.h, .cpp), whenever i do a full rebuild of the solution, the library files get built 5 times, each time for every project. This takes a long time, how can i just compile the common files just once to save time, and all projects can use them?
Thanks
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I think that the best solution would be to make a library (I mean, a real .lib file) out of what you call your "library files". That way you don't need to include your source files in the other projects and they will be compiled only once.
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Is there no other way? What about pre-compiled headers? Can i share between projects?
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What's the problem with using a library file ? That's really simple to do.
I don't know any other easier solution (never really used a lot pre-compiled headers).
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Because most of the files are dependent on each other, making library file is a headache. Like, CoreImage.h depends on Core.h and CoreTypes.h, while CoreFilter.h depends on CoreImage.h, Core.h, CoreTypes.h etc. I would then need to update the build order, post build events etc. Afterall, all the library files keep changing as well (in development).
That's why i try to avoid making lib.
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I don't understand the problem. All those files are the files that you call 'library files', right ? And they don't depend on any of your other project files ?
Then, there is no problem. When you will change any of the lib file, the library will be recompiled, which will then imply that all the projects that depends on this library will get relinked with it.
The only thing you need to make sure is that the header files are accessible to all of the other projects and that the lib file is also accessible to the other projects.
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I understand. You're right. Thanks, i think i need to make libs.
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----- 已跳过生成: 项目: circ ------
------ 已跳过生成: 项目: circprops ------
========== 生成: 0 成功或最新，0 失败，2 被跳过 ==========
what is the meaning? it appear when i compile the code down from the msdn
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已跳过生成:
项目已跳过生成
Born to win...!
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项目 for Project
生成: 0 成功或最新，0 失败，2 被跳过
Generated: 0 Success, 0 Failed, 2 Skipped(not sure about this one)
Looks like chinese. I can only read the japanese characters.
You can go to this site if you need to translate it.
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youbo wrote:
----- 已跳过生成: 项目: circ ------
------ 已跳过生成: 项目: circprops ------
========== 生成: 0 成功或最新，0 失败，2 被跳过 ==========
are you using the other than English OS, if yes please post error message converted to english
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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my edition is 2005,i find there are many new things in the edition relative to 6.0, and the expression sees to be strange.
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youbo wrote: my edition is 2005,i find there are many new things in the edition relative to 6.0, and the expression sees to be strange.
What do you expect after 7+ years of changes in technology?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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HI,
In my application i have some alarms.If the value is goes under limit value then my application should give beep or some alarm sound.For this i have one flag,if the value goes below limit value it gets true.and alrm is get beep.
if(AlarmSummBeep)
{
HINSTANCE hInst = AfxGetInstanceHandle();
if(!PlaySound("IDR_LOWALM", hInst, SND_RESOURCE | SND_ASYNC))
{
MessageBeep(0xFFFFFFFF);
}
}
else
PlaySound(NULL,NULL, NULL);
Actually this conditon is in thread function.So,the alarm is continuosly beeping.
SO i need one mute button in my application and if i press the button,even if the alrm gets there should be no sound or beep at all.
I searched in net..but i cannot find my solution.Pls help me out.Mine is MDI application.
Anu
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From what I've understood, can't you set an additional boolean flag for mute condition? If mute is true, then return without ringing the alarm. But, please help me understand your problem better...
Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->ßRÅhmmÃ<-·´¯`·.
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Can you set the value of the flat AlarmSummBeep to false when you click on that button. You can also use a different variable in case this conflicts with your existing code. So when the user clicks on the mute button the value of the new flag variable is set to false and the alarm beep is not fired.
While playing the alarm just check for the value of that flag variable.
Somethings seem HARD to do, until we know how to do them.
 _AnShUmAn_
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Maybe you should use the good old Beep(dwFreq,dwDuration);
It will beep through the DOS speaker, which most computers still have.
//Johannes
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In fact, most modern ainboards will (at least optionally) beep via the built in sound device.
Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
Douglas Adams, "Dirk Gently's Holistic Detective Agency"
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Hi all,
In my application, I can read a file and process it to collect some data. To make my application I want to make only allowed to work on one file format. I mean my application read same type of file all the time, so the extension and file name length is fixed.
To confirm that what I have do is, get the file name from the full path with the extension. Then find the length and the extension. Check that both conditions are true with fixed file name length and the file extension.
Is that ok, I mean is that this is proper way to do it.
Thanks.
I appreciate your help all the time...
Eranga 
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Checking the file name and extension isn't always helpful. You may get a fake file with the same name and ext. So, better write your file with specific header at it's start. And whenever you open the file, verify the file with your header structure and data in it. If you found anything mismatch in the data, the file isn't yours! So, this makes you use flexible file name and extension. This could be more secured. I hope you got my point.
- Malli...! ![Rose | [Rose]](https://codeproject.freetls.fastly.net/script/Forums/Images/rose.gif)
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what malli has suggested is good.
and for more security, you can also put the checksum at the end of hte file.
--------------------------------------------
Suggestion to the members:
Please prefix your main thread subject with [SOLVED] if it is solved.
thanks.
chandu.
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Thanks for the both replay. But I'm not sure that is easy to me 
This is the way I've done it.
<br />
void CSRFDBDlg::CheckFileName(CString FileNameToCheck)<br />
{<br />
CString withExt;
CString fileExt;
<br />
withExt = FileNameToCheck.Right(FileNameToCheck.GetLength() - (FileNameToCheck.ReverseFind('\\') + 1));
<br />
fileExt = withExt.Mid(14, 3);<br />
<br />
if( (withExt.GetAt(0) == 'G') && (withExt.GetLength() == 17) )<br />
{<br />
if( (fileExt.GetAt(0) == 's') && (fileExt.GetAt(1) == 'r') && (fileExt.GetAt(2) == 'f') )<br />
{<br />
CString str( _T("Selected Target:\n\n" + FileNameToCheck) );<br />
AfxMessageBox(str, MB_OK);<br />
GetDlgItem( IDC_READ )->EnableWindow( TRUE );<br />
}<br />
else<br />
{<br />
AfxMessageBox( "This file format is not support in this application." );<br />
}<br />
}<br />
else<br />
{<br />
AfxMessageBox( "This file format is not support in this application." );<br />
}<br />
}<br />
I appreciate your help all the time...
Eranga
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If you use CArchive::Serialize it will check if the structure of the data are correct to the project it self.
I.E. you code this:
if (ar.IsStoring ())
{
ar << myObject.myInt;
ar << myObject.myDouble;
ar << myArray[x].myString;
}
and you save a file with those datas, if you afterwards try to read them and you put it in other way, like:
else
{
ar << myArray[x].myString;
ar << myObject.myDouble;
ar << myObject.myInt;
}
the programm will complain and say that the data are not readable. So there is an error coding, or the file is not from your application. Is very difficult to find a "fake" file with the same structure of data as the files from your application (probability will be inverse proportional to the ammount of data saved in your file).
With the CFile you dont have that support, so you should use the solutions above.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson
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Thanks pal. How about if I check both structure(as you said here) and the way the file name organized(as my code). Is it good or bad.
I appreciate your help all the time...
Eranga
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hello,
in my project i have to fix a formview in another dialog like
m_GAUserEnteredOption.Create(this, IDC_S_VIEW_USERENTEREDOPTION,
IDR_F6CP_MAINFRAME,
RUNTIME_CLASS(CGADocument),
RUNTIME_CLASS(CGAMainFrame),
RUNTIME_CLASS(CDigitalUserOption),
WS_CHILD | WS_VISIBLE, 0L);
but once i fix this in another dialog i cant destroy the window
and those controls which are under this frame and dialog is not accesible . how to over come this
"Men never do evil so completely and cheerfully as when they do it from religious conviction"
-Pascal
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