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That sounds pretty good and wouldn't be very difficult at all to implement. However, the utility is pretty small and my goal is to keep it as simple as possible for distribution.
It's purpose is to keep a device of ours updated by querying for current version information, checking the FTP server for the latest updates, bringing them down, and putting the updates on the device. All this works fine. However, I ALSO want the utility to update itself if/when the need arrives.
Our customer base isn't exactly technically savy at times so the goal is to make this as simple as possible. Therefore, I'd like to work out some way to do this all in one EXE.
In UNIX I remember there was a way to rename the executable at runtime. Is there a way to do this with an MFC app? Then I could rename the running app, download the new version, shut down the renamed app and launch the new one. Is that possible?
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>>>In UNIX I remember there was a way to rename the
>>>executable at runtime. Is there a way to do this with an
>>>>MFC app? Then I could rename the running app, download >>>the new version, shut down the renamed app and launch >>>the new one. Is that possible?
I don't believe you can, Please disprove me.
Ok here is another easy method
run OldApp,
When OldApp runs it checks a reg value to see if NewAPP exists,
if NewApp exists
{ OldApp executes NewApp
OldApp dies
} /// This leaves only NewApp running
else {OldApp Continues}
The only disadvantages with this are minimal,
You have two exe's instead of one installed !
Regardz
Colin Davies
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I've done this before.
What I did was to download new.exe to a temporary folder named something like temp.exe then run it as such:
temp.exe -replace c:\path\to\current.exe
then immediatly exit current.exe
temp.exe should read the command line and set a timer for like 5 seconds (make sure we give current.exe enough time to exit) the timer will delete current.exe, copy its self over current.exe, and then run it as such:
c:\path\to\current.exe -delete c:\path\to\temp.exe
current.exe will then be your updated exe and should delete the temporary file.
Hope this helps
-zack
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There's a bug in Windows ListCtrl, (Report mode), using GRIDLINES.
When scrolling from right to left slowly, vertical lines are not drawn.
This happens because (aparentrly) the control draws the vertical lines whem drawing the subitems which are on the right of the line. When scrolling from right to left, there will be a moment when left subitems appears completely visible on the screen, but the left line wont be visible. If we scroll again to the left, this line wont be drawn (BUG) because these subitem don't require to be redrawn.
I Fix this bug by invalidating the rectangle where the left line should be when scrolling.
Is there a FIX to the ComCtl32.dll?
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What's the difference between using CWnd::SubclassDlgItem and use DDX_Control? I've noticed that ClassWizard uses DDX_Control.
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I have created a Tree Control using ActiveX, and have done my own drawing by overriding the CTreeCtrl::OnPaint. However, when I try to draw icons using the CDC::DrawIcon function, my icons always appears at 32x32.
I have created an icon resource which is 16x16, loaded it into a HICON variable using ::LoadImage in an overridden CTreeCtrl::PreCreateWindow function, and in my overridden CTreeCtrl::OnPaint called the function
memDC.DrawIcon( point, m_hIcon )
where memDC is a CDC object, point is a CPoint and m_hIcon is my HICON variable.
What appears is the correct icon, but it has been stretched horizontally and vertically by a factor of 2. How do I prevent this so my output icon is 16x16 ????
Thanks
Ant
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Use DrawIconEx() instead - it has parameters where you specify the height/width of the icon.
--Mike--
http://home.inreach.com/mdunn/
"Didn't I tell you? I've got a brain the size of a planet."
--Marvin the paranoid android
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I have a little problem in one of my programs. I want to use the scroll bars of a CView. How can I get pointers to them? I've tried CView::GetScrollBarCtrl(SB_VERT/HORZ), but it returns a NULL pointer.
I have added the line 'cs.style |= ( WS_HSCROLL | CS_VSCROLL );' in PreCreateWindow
Thanks very much in advance.
Erik
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How can I create buttons with labels on a toolbar, like the Search, Favorites and History buttons on the Internet Explorer 5 toolbar?
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I want to play a wav included in a resource dll file with a thousand of wav (98 Mb) in it. I use 'LoadResourceEx' but it doesnt works, can you help me.
Here's my code segment:
HINSTANCE m_hResource;
m_hResource = LoadLibraryEx("MyDll",NULL,LOAD_LIBRARY_AS_DATAFILE);
AfxSetResourceHandle(m_hResource);
HINSTANCE hInst = AfxGetResourceHandle( );
LPCSTR sound;
HANDLE hResource;
LPCTSTR nom("NameoftheWav");
hResource = LoadResource( hInst, FindResourceEx( hInst, "WAV", nom ,MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL))); /*WAV is the type defined in the .rc file */
sound = ( LPCSTR )LockResource( hResource );
sndPlaySound( sound, SND_NODEFAULT );
UnlockResource( hResource );
FreeResource( hResource );
FreeLibrary(m_hResource);
Thanks in advance.
Eric Tremblay
Multimedia Programmer,
QA-International
Quebec, Canada
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I need to determine users rights to access files in NT, but I don't have their passwords to open their tokens.
Functions like AccessCheck() require the user token, which is obtained by LogonUser(), but it requires the user password.
I found a partial solution which is opening the file ACE list, and compare user and ACE SIDs, but if the ACE SID identifies a group, I've found no way to check it against the user SID.
Does anyone know how to do this?
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i will be very thankfull if some helps me
i want to read the lpt port address from memory or any other way .
i know how to do that with c under dos
as follows
peekb(0,0x408);
this function returns a byte stored in the memory
of segment 0 offset 408
how can implement that with visual c++
i didn't find the same function here
thanks
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BYTE byValue, *pbyAddr;
pbyAddr = (BYTE*) 0x408;
byValue = *pbyAddr;
--Mike--
http://home.inreach.com/mdunn/
"Didn't I tell you? I've got a brain the size of a planet."
--Marvin the paranoid android
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Are you sure?
VC++ gives Access Violation error at line:
byValue = *pbyAddr;
As far as I know this is a very complicated task which requires device driver programming knowledge.
Suha
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Inside an ActiveX control I have an array ( MFC's CPtrArray ) which hold structures of dates with notes.
1. What is the simplest way to save this data (and reload later for this control)?
2. If I'll decide to store such a data in Database, what is the simplest way to add the ADO support to my control?
Thanks.
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I have developped an MDI Application that manages 2 types of documents.
So i use AddDocTemplate to register the 2 documents types.
The problem is that the main menu is displayed when starting application.
Then i click on 'New' button to create a document. Then i can select either the first or the second type
of document.
Then the menu disappear.
How can i set a menu for a document template ?
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In your CWinApp derived class ( the one that ends in app ), override OnFileNew. Put this there:
// Force use of first template as it does not matter
POSITION POS = GetFirstDocTemplatePosition();
CDocTemplate* pTemp = GetNextDocTemplate(POS);
CGrausPaintDoc* pDoc = (CGrausPaintDoc*) pTemp->OpenDocumentFile(NULL);
Only, I presume you'll change the Document classname as appropriate. 
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
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Hi, I need to create a 'Timer' function for my MIDI sequencer project. I've heard that the Windows timer is not too reliable, but I'm not experience enough to write something more solid on my own.
Ideally, the timer function could be implemented in the following way:
Timer Function definition
Parameters: x, y, z, a (function type, time value, function name, return result)
X (function): 1 - start
2 - stop
3 - reset to 0
4 - call z every y milliseconds
Y (time value) - a value range (long integer)
Z - name of a function to call
A - long integer return result (for reading time value)
Does anyone have any idea of how to help me with this? I'd be so grateful you wouldn't believe!!!
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Although there is some criticism of OnTimer, there is a function called OnWindowsTimer or something, which measures time since Windows started and is, I am told, more reliable.
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
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Where do I find a list of what files to include in my installation when I use ODBC CRecordset interface to and Access DB file.
Happy programming!!
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Where do I find a list of what files to include in my installation when I use ODBC CRecordset interface to and Access DB file.
Happy programming!!
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i used a c code under dos to read LPT port address
using a function in dos.h
it was peekb(segment,offset)
as the following peekb(0x0,0x408);
how can i do it with visual c++?
thank you
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Anybody know how to Play single note in MIDI???
Example "C" or "D7" etc.
Please help me.
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First some music theory ;0)
D7 is NOT a single note, but rather a collection of four, namely D, F, A and C, with the D note lowest. Did you mean chords, or did you mean single notes and not understand this ?
Either way, DirectX8 integrates DirectMusic with DirectSound, so it will get MIDI up and running for you if you download the SDK from the Microsoft site. I'm sorry, I've not done it yet myself, I've just got through DDraw and DInput. DSound is next ;0)
Christian
The content of this post is not necessarily the opinion of my yadda yadda yadda.
To understand recursion, we must first understand recursion.
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