C / C++ / MFC

Re: o,thanks a lot but......

28-Sep-02 21:58

Mr. Whelk,

If you receive this before you receive my personal mail, please excuse me for jumping to the conclusion you mailed me in person and not posting to CodeProject. There could have been e.g. web-site delays I didn't think of.

Anyway, my answer would still be:

the key is that i dont know how to generate the strPrintText to the bitmap in the function ,by the way ,i dont want to display the text,all i want to is
to

You are able to display it I assume? Then:

If you are drawing these glyphs into the output DC, you already know how to
draw them, and just have to draw them to another bitmap that you yourself
then interpret.

If you are not drawing them into the target DC, but want to print them anyway, you have to 1) create a bitmap, 2) blit (blt = copy) the contents of
the source bitmap into your created bitmap and then finally 3) interpret the
bits.

To interpret the bits I can only suggest you read up on "CreateDIBSection"
and "GetDibIts".

++luck;

whelk29-Sep-02 16:07

whelk

29-Sep-02 16:07

sorry i cant do it
can you give a example application to realize the function?

thanks a lot !!

-----------------------------
Mr.Whelk
-----------------------------
Zhuhai City ,Guangdong ,China

??Resuming a partial download??

Licensed2Code28-Sep-02 14:23

Licensed2Code

28-Sep-02 14:23

Is this the right algorithm to resume an aborted partially downloaded file from the point it was aborted?

1. Read the number of bytes already download = x bytes

2. Inform the server how much of orginal bytes have been read
so remaining bytes = (total file size) - x

3. seek to the point it was aborted in the file using CFile::Seek() and start reading from the server

4. At the client side move the file pointer to last bit of the read byte using CFile::Seek() and make sure it doesn't overwrite the existing file. Am I on the right track guys? And how do I prevent the file from not over written?

Have a good one guys.

"My ass on fire and my brain's on smoke"

Re: ??Resuming a partial download??

Mike Nordell28-Sep-02 19:27

Re: ??Resuming a partial download??

28-Sep-02 19:27

Licensed2Code wrote:
Is this the right algorithm to resume an aborted partially downloaded file from the point it was aborted?

No. But you're close.

Note that without telling explicitly what file transfer protocol you are using you can't get precise answers.

If you are using FTP; Instead of asking, do your own research (also know as "Please do your own googling"). Have a look at e.g. FileZilla that does this (and more).

licensed2kill29-Sep-02 7:41

licensed2kill

29-Sep-02 7:41

I'm using TCP/IP to transfer some raw bytes.

Ok, as you said, I'll do my own research. I came to ask this when my own research isn't good enough, and I was trying to share my knowledge with the rest of ya'll. Ever thought of the purpose of this news group?

Thanks for replying though.

low level code

Kuniva28-Sep-02 14:03

Kuniva

28-Sep-02 14:03

hi, i am (trying) to learn assembly and downloaded MASM. This includes many examples, but they all seem to be using include files and working with messageboes just like in C, in fact i dont really see why i should use Asm instead of C. I mean, where is the code behind, for example CreateWindow(), either in C or in Asm, how is it done? down to the very basics... If anyone knows a good tutorial on this or anything it would be greatly appreciated.
Thanks

Kuniva
--------------------------------------------

Re: low level code

Mike Nordell28-Sep-02 19:30

Does this bit of code work?

28-Sep-02 19:30

Kuniva wrote:
in fact i dont really see why i should use Asm instead of C

There is often no reason to use assembler instead of C. Since I don't know where you got that idea, it's impossible to judge it more than saying it's in general false.

Re: low level code

Stephane Rodriguez.28-Sep-02 21:19

Stephane Rodriguez.

28-Sep-02 21:19

win32 asm tutorial[^]

You may download asm books on k*z*a as well/.

if you start putting in too manay features, it no longer remains useful for beginners
quote in a CP article comment, shiraz baig

Re: low level code

Daniel Turini28-Sep-02 23:13

Daniel Turini

28-Sep-02 23:13

Kuniva wrote:
I mean, where is the code behind, for example CreateWindow(), either in C or in Asm, how is it done?

Bad news, fellow, CreateWindow is made in C.
Only the innermost kernel features are made in ASM. And this is kept to a bare minimum. You could start seeing something like this downloading the linux kernel.

"In an organization, each person rises to the level of his own incompetence." Peter's Principle

DarrollWalsh28-Sep-02 13:35

Re: Does this bit of code work?

28-Sep-02 13:35

CFileFind finder;
static const TCHAR szFileToFind[] = _T("*.dll");
Cstring Plugins[100];
int tag = 0;
bool bResult = finder.FindFile(szFileToFind);

while (bResult)
{
// Grab actual results
finder.FindNextFile();
Plugins[tag] == (LPCTSTR) finder.GetFileName();
tag++;

// Get next file
bResult = finder.FindFile(szFileToFind);

}
finder.Close();

I am away from a compiler ATM. Thanks for your help.

Darroll

Not one person lives in the present. Only the past. I can prove it.

Michael Dunn28-Sep-02 14:34

Michael Dunn

28-Sep-02 14:34

The CFileFind interface is a bit wonky.

BOOL bWorking = finder.FindFile ( szFileToFind );
 
  while ( bWorking )
    {
    bWorking = finder.FindNextFile();
    Plugins[tag] = finder.GetFileName();
    }

The return value from FindNextFile() indicates whether you just got the last file in the search, which is contrary to how most classes do it (where the return indicates whether you've gone through all the files). When it returns FALSE, you still have one file left to process.

--Mike--
Just released - 1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click!
My really out-of-date homepage
Sonork-100.19012 Acid_Helm

Delete *.ini sections

Selevercin28-Sep-02 11:55

Selevercin

28-Sep-02 11:55

Hi,

I wish to be able to delete a specifed section of my *.ini file. I have been adding things to it, but how do I delete things? I have been using the following code without the SetRegKey() function to create my .ini:

AfxGetApp()->WriteProfileString("Section", "Part", data);

I wish to delete the "Section". Code to the "Part" would also be appreaciated.

Thanks,

~ Selevercin

If you have a problem with my spelling, just remember that's not my fault. I [as well as everyone
else who learned to spell after 1976] blame it on
Robert A. Kolpek for U.S. Patent 4,136,395.

DarrollWalsh28-Sep-02 12:18

28-Sep-02 12:18

I have been using this to help me with ini files. http://www.codeproject.com/cpp/cinifile.asp

You could see how he does it then impliment that, or switch over and use this. It is fairly straight forward and clean. Hope this helps.

Darroll

Not one person lives in the present. Only the past. I can prove it.

Selevercin28-Sep-02 12:52

Selevercin

28-Sep-02 12:52

Excellent!

I wish I had known about that class sooner!

~ Selevercin

If you have a problem with my spelling, just remember that's not my fault. I [as well as everyone
else who learned to spell after 1976] blame it on
Robert A. Kolpek for U.S. Patent 4,136,395.

Abin28-Sep-02 22:00

Abin

28-Sep-02 22:00

That class is indeed wonderful, but I'm just curious: Why isn't there a way to delete an INI section or entry by API calls? I've tried to search through MSDN and studied all(I think) INI-file-related API's, no lucky, i really can't beleive that.

Mike Nordell29-Sep-02 4:23

29-Sep-02 4:23

Bin wrote:
Why isn't there a way to delete an INI section or entry by API calls?

You are always limited by Win32 API (actually, in this case it's inherited from Win16), and if Micros~1 didn't think of something you'd want to do, there us usually no documented way to do it.
Easy as pie (unless you try a GDI Pie...).

Any suggestion on how this could be done?

JT Anderson1-Oct-02 6:41

JT Anderson

1-Oct-02 6:41

AfxGetApp()->WriteProfileString("Section", "Part", NULL) should delete "Part" from "Section".

AfxGetApp()->WriteProfileString("Section", NULL, NULL) should delete all of "Section".

See the documentation for ::WritePrivateProfileString and look at the source code for CWinApp::WriteProfileString. The documentation for CWinApp::WritePrivateProfile string apparently fails to mention that you can use it to delete entire sections from the INI file.

WREY28-Sep-02 11:15

WREY

28-Sep-02 11:15

Before every function definitions, I have gotten into the habit of prefacing each with COMMENTS on what's being accomplished in that function (such as which parameters are input, output, and what changes were made to that function, when, and for what reason, etc.).

However (useful as it is), it has become something of a labor for which I would like to formulate a way in which I could do something that would automate the process of inserting a "template like" generic header, which I could then modify with only the specifics for that particular function.

IOW, my rough idea is to insert a macro (or something like that) before each function definition, and when the program is compiled, to have the macro expand into this generic template layout which I would then simply fill in with the relevant information (etc.).

Any idea on the best approach?

Thanks!! Cool | :cool:

William

DarrollWalsh28-Sep-02 11:22

28-Sep-02 11:22

Try looking at this:
http://www.codeguru.com/devstudio_macros/CommentCreator_Nikolic.shtml

There are a few others here http://www.codeguru.com/devstudio_macros/index.shtml

Let me know if this helps.

Darroll

Not one person lives in the present. Only the past. I can prove it.

Jim A. Johnson28-Sep-02 11:49

Jim A. Johnson

28-Sep-02 11:49

Amazing that someone would promulgate this.

This sort of commenting has been discredited as very hard to maintain, and therefore more likely to be misleading than informative. Bad idea.

Maximilien28-Sep-02 11:57

Maximilien

28-Sep-02 11:57

I don't see the problem, the guy asked for a way to add comments via macros, and a solution was given; whether the solution is good or bad, is another story, but the principles are there and it's up to the user to modify the script to generate his own good format for him.

Suggest another format!

Max.

WREY28-Sep-02 12:44

WREY

28-Sep-02 12:44

I am not promulgating anything. I am the one asking for ideas.

Like everything good and beneficial, discipline is required if it's to remain that way.

I cannot count the amount of times I've had to spend hours playing detective to applications nobody seemed to remember what all have been done to it (not even the author who wrote it).

Tell me at such times you couldn't use all the help you can get (especially at 2 in the morning when your phone rings because some user on the other side of the world has just experienced a crash or some other anomally while using the application).

Nevertheless, I see your point, because of what good would documentation be if it's out of date and misleading, WHICH IS WHERE DISCIPLINE WILL HAVE COME IN.

Discipline is never easy. It requires (for a lot of people) training, consistence, and (for some) enforcement.

I like to think I'm helping out the next person whose phone might get ring at 2 in the morning, so he/she would know what to do and wouldn't have to call me (which in a way is helping myself).

Cool | :cool:

William

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DarrollWalsh28-Sep-02 10:29