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Hi
Currently I've generate a DLL who construct a Log file (CMyLogFile => global) depend on the application which uses this DLL.
But the problem comes when several applications in the same directory use this DLL. I must create a different file name for each application, if not the other application does not open (because currently he use the same file name)...
How to generate differents log files name from a DLL using by several application locate in the same directory?
Thanks in advance...
Hello World!!! 
from Raphaël
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When your DLL is invoked by a process, it receives an HINSTANCE (in DllMain). Your default implementation of DllMain probably stores this somewhere.
Anyway, you could use this to modify your filename for uniqueness.
Alternatively, see API GetTempFileName()
Jon
Signature space for rent. Apply by email to....
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But HINSTANCE is unique and thus is the same for several process who use the DLL...
Hello World!!!
from Raphaël
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That sentence is a contradiction.
Signature space for rent. Apply by email to....
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No because the HINSTANCE identify the DLL and not the process.
This handle represent the virtual address of the begining of the dll.
I want to know which process call the DLL in the entry point of the dll.
Hello World!!!
from Raphaël
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The HINSTANCE value of each app (in Win32) is the same, 0x40000000 or something, so that wouldn't help. You could get the processID or even the thread ID and that should be nearer to what you want.
Steve S
[This signature space available for rent]
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Use GetTempFileName. This will allow you to specify the path and an extension for your file, and it will guarentee that it gives you a unique file name.
Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!
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GetModuleFileName(NULL) returns the path and name of the .EXE used to create the process. In your context this should be unique.
--
Daniel Lohmann
http://www.losoft.de
(Hey, this page is worth looking! You can find some free and handy NT tools there  )
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I'm loooking at various implementations. They all seem to run for an arbitrary time, then vanish. What if my program still isnt ready to show the UI? How do we make some sort of synchronization between the duration of the splas and the app startup time? Incidentally the app really varies in startup speed....
Appreciate your help,
ns
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don't let the splash screen kill itself. instead, have your main app thread send it a WM_OK_GO_AWAY_NOW message when loading is finished.
-c
Support regime change. Vote.
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Okay. I'll go with that idea. Thank you
Appreciate your help,
ns
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I've used in the past Paul DiLascia's CSplash class[^]. The trick to achieve sync with the appearance of your main dialog is to delay setting the m_pMainWnd member of the CWinApp object till your OnInitDialog is done.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Thats a terrific sample you linked me to. Only problem is his app is coming up minimized when the splash disappears. I'm not sure what line of code makes it minimized on startup. I want mine to show up, not minimized. Something in his code is telling it to minimize, and I need to figure out what it is...so that my app works the way I want it.
Appreciate your help,
ns
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I don't know... This is what I've put at the end of my OnInitDialog:
AfxGetApp()->m_pMainWnd=this;
SetForegroundWindow();
and it works OK.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Thanks. I dont know whats happened to my machine since I ran Lascias sample...its got a cmdline.cpp I'm suspecting. Anyways, even after rebooting, my app wont work. Crashes when its processing cmdline info. It works fine on other machines....ideas?
Appreciate your help,
ns
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i need to zip a file dynamically by c++ then send to somewhere. i think i need to learn zip format.
do u know how to zip a file in c++ or give me a line to zip format.
thx
includeh10
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Check out Creating a Self Extracting Executable
There's other similar utilities under the files section of CP also...
"If at any time I announce that a nation or kingdom is to be uprooted, torn down and destroyed, and if that nation I warned repents of its evil, then I will relent and not inflict on it the disaster I had planned. And if at another time I announce that a nation or kingdom is to be built up and planted, and if it does evil in my sight and does not obey me, then I will reconsider the good I had intended to do for it." -- Jeremiah 18:7-10 (God, commenting on the value of the United Nations)
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thank u, my dear ....
includeh10
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I dont have this file on my machine. I loaded a CP splashscreen sample in my vc6, and I get:
Linking...
LINK : fatal error LNK1104: cannot open file "mfc42u.lib"
Any ideas on how to fix this?
Appreciate your help,
ns
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it is lib for NT. if u don't use NT, build exe in debug or release version, should be OK,otherwise, delete makefile, create a new one urself.
if use NT, type following line at beginning:
#pragma comment(lib,"mfc42u.lib")
if still not working, try to find the file to see if it is existing
includeh10
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Thanks. I am building the project in the VC debug environment on win2K. this file is not on my machine in the vc98 folder...
Appreciate your help,
ns
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it's for UNICODE build, maybe you didn't install UNICODE support files and DLL when you installed CV++ re-install/repair/modify and check that the UNICODE support is checked.
Max.
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I want to make simple dialog based application. What i need is that dialog box appears in an "inactive" state i.e when i run my program from VS IDE, the dialog box goes behind and VS IDE not loose its focus. how can i do so ???
BTW: I've already used ShowWinndow options in OnInitDialog(), but these options not worked in case of Dialog Box
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Create a modeless dialog using Create() and ShowWindow() (see MSDN), and then change the dialog's zorder
"If at any time I announce that a nation or kingdom is to be uprooted, torn down and destroyed, and if that nation I warned repents of its evil, then I will relent and not inflict on it the disaster I had planned. And if at another time I announce that a nation or kingdom is to be built up and planted, and if it does evil in my sight and does not obey me, then I will reconsider the good I had intended to do for it." -- Jeremiah 18:7-10 (God, commenting on the value of the United Nations)
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