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I have a formview based MFC project, I need to import a logo design into the background of the page.
Is there a way to do this in MFC?
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Two choices:
1) Draw image yourself.
2) Place CStatic in your background.
Brian
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First stop being Anonymous we are not the bad guys.
Secound you can use LoadImage() to load a some image files.
Third there are several aticles at codeproject on loading files that you can not load with LoadImage().
Fouth there are sample files in the MSDN Library for using bitmaps as the backgroud of dialogs, which is basicaly what you are doing when you are using forms. There may be some aticles at codeproject for doing the same thing, if not do a search of the www because there out-there.
Trust in the code Luke. Yea right!
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Does anyone know how to read a file that has been locked by the os? I want to open a file and retrieve its contents. It is already open by another program though. I can't seem to get it open. I don't need to change any data, just read the file. I know that this is possible, as I have seen other programs and editors that are capable of this. I am assuming I have to use c++ for this, but c# would be OK also.
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What mode did the OS open the file with? What mode are you using? If the OS opened with "share none," you won't even be able to read the file.
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I don't know the mode the os used. How can I find out? The file I want to read is a sql server transaction log file. I know that this is possible as I have seen products that will do this, I just don't know how. I have only tried to open the file with c#'s System.IO binary reader for now. I haven't looked at c++ yet. I figured that I would though.
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If you are using CFile then use: modeRead | shareDenyNone. This will work if the file isn't opened for shareDenyNone access. This is what I do in ED (see sig). You may want to see if you can open the file using ED. It should open in "view" mode.
Neville Franks, Author of ED for Windows. www.getsoft.com
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Thanks everyone. It did open in ED. So I will try to open it with cfile.
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jspano wrote:
It did open in ED. So I will try to open it with cfile
You don't need to use CFile. All of the file open functions support the same options.
Neville Franks, Author of ED for Windows. www.getsoft.com
Make money with our new Affilate program
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Thanks. Can you suggest the one that is most optimal for performance? The best solution would be to open the file and somehow put the bytes into a managed FileStream or ByteReader etc in .Net.
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Sorry but I'm not using .Net. If you are only interested in reading the file then I'd like at using a simple memory mapped file. It will also depend on what you want to do with the file, how big it can be etc. Do you need fast random acces to lines within the file etc.
Neville Franks, Author of ED for Windows. www.getsoft.com
Make money with our new Affilate program
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basically I would need to read from start to finish the whole file into memory. This might not work always though, since the files could be huge. Up to say 100megs or more. What techniques do programs like your or word do for large files? as the user scrolls around go get more data?
Thanks
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ED uses a propriety database style system where it has instant access to any line and lines can grow or shrink, be deleted or inserted as required (ie. be edited).
If you just need to read the file then I'd definitely use a memory mapped file (mmf). You could build a simple STL vector<> with pointers to the start of each line. Have a look at the article here on CP on PugXML where you will see code I've added to read the XML file using mmf.
Neville Franks, Author of ED for Windows. www.getsoft.com
Make money with our new Affilate program
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I am not sure if you know that it is in fact locked by the OS (I assume you realy do not know). Try opening it with FILE_SHARE_READ. There are very few instances when you will be denied this access, the main reason is for security on WinNT/Win2000/WinxP. Of course if this is not a system level (kernal-level) file then there is a very good possiblity that the program that has it open is greedy and does not want to share reading privaliges why it has the file open.
At the minimum, give Me/Us a code snippet of how you are atempting to open the file.
Trust in the code Luke. Yea right!
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Hi, I am deploying the application for our client. I am able to create setup.exe to copy required files and registering the DLLs using InstallShield for VC++ 6. But the application also requires a DSN. How can I add the Oracle odbc driver and define the DSN in setup.exe?
-Elizabeth
Eilzabeth
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Lokks like you need to create DSN when you "setup". You know you can create DSN in application. Do you? In my Opinion, Create DSN is the job for IT people of client.![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
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Ideally, I would like the application (or setup.exe) to install ODBC manager (if not there) and the ODBC driver and configure the DSN all in one place. I tried
SQLManageDataSources(this);
in the CWinApp class to open up the ODBC Data Source Admin dialog but got an error message saying "undelared identifier".
-Elizabeth
Eilzabeth
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Ok, ive just created a CDC for the screen, done a little drawing, but want to get rid of my drawing...is it possible to inform a region/rect of the screen that it should repaint?
| Website: http://www.onyeyiri.co.uk
| Sonork: 100.21142 : TheEclypse
| "If a dolar was a chicken would the chicken be evil?"
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One solution is InvalidateRect().
Kuphryn
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thanks, works great 
| Website: http://www.onyeyiri.co.uk
| Sonork: 100.21142 : TheEclypse
| "If a dolar was a chicken would the chicken be evil?"
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see: InvalidateRect, RedrawWindow
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I was looking for a way to determine if one polygon is contained in another. I need it to work with float points (instead of integers). I need this to be fast, so a system api would be great.
I've looked at the CRgn class, but it is integer based. I've looked at some of the openGL glu methods, but my lack of familiarity with them has led to much confusion.
Is there some api out there that does this? Of am I going to have to re-invent this wheel?
Thanks in advance!
shao_lo@eudoramail.com
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You can use CRgn::CombineRgn and not have to worry about floats or ints. Just create two regions that represent the polygons. Let's say that rgnInner is the region that should be contained within rgnOuter. Then create a third region using CombineRgn(&rgnInner, &rgnOuter, RGN_DIFF). This gives you the region consisting of the areas of rgnInner that are not contained in rgnOuter. If the return value is NULLREGION, that means that rgnInner is fully contained within rgnOuter.
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There is no API for doing what you want that I know of and if there is please (please) let me know. The one reply I saw to your inqirey looked more like clipping one region to another region. But according to your qestion you want to determine if one polygon is in-side of anouther polygon. I do not know of any algorithm that can solve your problem.
Trust in the code Luke. Yea right!
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Hello,
whats the difference between unlink and remove?
-Dominik
_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do?? 
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