|
I've got a library to do this that I was going to put up as an article when I had a bit of spare time (HA!). How much of a hurry are you in?
|
|
|
|
|
Sorry for the delay. Not an amazing hurry but i would be grateful if you could let me know when you have put it in as an article.
Thanks
Matt
Matt G
|
|
|
|
|
|
Thanks, it looks pretty good.
Matt G
|
|
|
|
|
There are a bunch of articles here on CP. Check out the dialog section.
Software Zen: delete this;
|
|
|
|
|
I have an MDI application where I am able to print text into multiple pages , but when I perform Zoom Zoom out or next page I do not get the desired page number.
How do I manage the pages that i generated ?
|
|
|
|
|
This sounds like a bug in your OnPrint() function. In this function you need to check the value of pInfo->m_nCurPage to see which out you need to draw/plot. In preview mode, the pages may be requested in any order, so your code needs to be able to plot any specific page separately. You probably have some code that saves state and then prints the next page on etc.
Roger Allen
Sonork 100.10016
I have a terminal disease. Its called life!
|
|
|
|
|
Previously I had always installed them into Windows\System32 but with VC7 the merge modules for MFC and CRT by default install the DLL's into the application directory.
Have Microsoft changed the policy on this? do all DLL's go into app directory now?
|
|
|
|
|
Yes, in theory Microsoft want to keep System32 uncluttered. This keeps with the whole 'have everything you need to run the app in the one directory' approach that will be a boon to software pirates in coming years.
There is, of course, no reason not to put them in System32 if you want to.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
|
|
|
|
|
|
I like it, too. I have a big hard drive, I don't care. I'm just pointing out that it will aid piracy.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
|
|
|
|
|
Do it like the pro's and save yourself a lot of grief: link statically.
|
|
|
|
|
For many years now, I've always copied the DLL's into the application directory. I got so fed up with some other application overwriting the system DLL's with older versions and breaking my app.
However, where possible I avoid linking to the MFC DLL's and use static linking instead. Helps a lot when distributing applications over the internet and also makes updating users systems easier.
Michael
Life’s not a song.
Life isn’t bliss.
Life is just this.
It’s living. -- Buffy the Vampire Slayer: Once more, with feeling
|
|
|
|
|
I am having a brain freeze (happens with no sleep . . .) Anyway, I have a third party ActiveX control (single OCX file with several controls in it) and I want to get the IID, CLSID, and LIBID for one of the controls. Can anyone refresh my memory on how to do this?
In desparate need of sleep . . .
Zac
"If I create everything new, why would I want to delete anything?"
|
|
|
|
|
If you have the typelib (or if it is embedded in the .ocx) you can view it using OLE/COM Object viewer - View TypeLib from there. All these GUIDs should be in there.
Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!
|
|
|
|
|
I'm completely new to programming, so this question will probably provide some laughs for you experienced people. What is the difference between the Heap and the Stack? And is this difference addressed by any code techniques? In other words, is this important, or does Windows manage memory without having to make the distinction? Another question; When you guys refer to a memory leak, is this exclusively 'heap leak' or 'stack leak', or does it even matter? And, are these locations assignable?
|
|
|
|
|
Well... I guess you've already written some programs in C or C++, right? If so, unless you have used malloc or new, all the variables declared and used in your program live on the stack. They're automatically added and removed on a stack-like manner as the flow of execution progress. For instance:
int a=0;
int b=10;
for(a=0;<b;++a){
int i=2*a;
}
Get the idea? The lifespan of stack variables is automatically taken care of by the compiler.
Sometimes, however, you need to have a variable that lives longer that the context it is declared in. These can be seen as "floating" variables whose birth and death is under control of the programmer, not the compiler --you decide when the variable is created, and when it is destroyed. The space these variables live in is called the heap. In C/C++, heap variables are handled though pointers:
int * a;
...
void f()
{
a=new int;
}
...
delete a; This is a very shallow introduction to the concepts, any basic C++ tutorial will explain these things better and in more detail.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
|
|
|
|
|
You know, this is the one thing I never remember. I know the concepts fine, but which is the stack and which is the heap is something I can never recall. I think you've cracked it for me. A stack is more orderly than a heap, and the heap is disorderly unless the programmer cleans it up. Well done, thank you.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002
|
|
|
|
|
Maybe it helps me that English isn't my native language but since the word "heap" does not correlate directly to an object in the real world in my mind then it's only a matter of connecting the stack to one such thing. And visualizing a stack of plates in a cafeteria usually does it for me.
Then there are the HeapXXX( ) functions which should also be a hint 
Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!
|
|
|
|
|
|
Joaquín M López Muñoz and Thomas George,
Thanks much, this is just what I was looking for. I'll pursue those clues. And, T. George, thanks for the article.
|
|
|
|
|
Hi people,
Could anyone point me to some code that loads any file in 10% pieces. i.e. load first 25% of file content, then the next 25% and so on till 100%?
I'm sure this has been done before......
TIA.
'My capacity for happiness', he added, 'you could fit into a matchbox without taking out the matches first'.
- Marvin, the robot.
Amit Dey
sonork: 100:18407
msn: visualcdev
|
|
|
|
|
You mean something like:
<br />
DWORD dwFileSize = ::GetFileSize( hTheFile, NULL );<br />
DWORD dw10Percent = ( dwFileSize *.10 );<br />
BYTE *pBuffer = new BYTE[ dw10Percent ];<br />
<br />
if( !pBuffer )<br />
{<br />
return( ERROR_NOT_ENOUGH_MEMORY );<br />
}<br />
DWORD dwStatus = 0;<br />
DWORD dwRead = 0;<br />
<br />
dwStatus = ::ReadFile( hTheFile, pBuffer, dw10Percent, &dwRead, NULL );<br />
if( dwStatus != ERROR_SUCCESS )<br />
Peace!
-=- James (Sonork:100.21837)
"There is nothing worse than being oblivious to the fact that you do not know what you are doing."
[Get Check Favorites 1.5 Now!]
|
|
|
|
|
Thanks,James.
But for large files, what if enough memory cannot be allocated? Can a smaller buffer(say 5000 chars) be reused?
'My capacity for happiness', he added, 'you could fit into a matchbox without taking out the matches first'.
- Marvin, the robot.
Amit Dey
sonork: 100:18407
msn: visualcdev
|
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
