Re: loop control - C / C++ / MFC Discussion Boards

Re: A simple threading problem..

CPallini3-Mar-08 0:10

CPallini

3-Mar-08 0:10

Try to post your question to the right forum (the Managed C++/CLI one).
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: A simple threading problem..

Mark Salsbery3-Mar-08 6:49

Mark Salsbery

3-Mar-08 6:49

ptr2void wrote:
Thread^ myThread = gcnew Thread(gcnew ThreadStart(f, &Form1::test));

That line compiles?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

loop control

rp_suman2-Mar-08 21:49

rp_suman

2-Mar-08 21:49

Hi,
The code looks as follows:

<br />
for() //main for loop<br />
{<br />
 for() //for loop1<br />
 {<br />
  if(condition)<br />
  {<br />
   //code<br />
  }<br />
 }<br />
 for() //for loop2<br />
 {<br />
 }<br />
 for() //for loop3<br />
 {<br />
 }<br />
}<br />

If the condition is false I want to iterate the main loop without running following for loops.
How to do this?

Best Regards,
Suman

Re: loop control

Cedric Moonen2-Mar-08 21:52

Cedric Moonen

2-Mar-08 21:52

Just put the continue keyword if the condition is true:

if (condition)
   continue;

This will go to the next iteration of the current loop.

Cédric Moonen
Software developer

Charting control [v1.3 - Updated]

Re: loop control

rp_suman3-Mar-08 0:41

rp_suman

3-Mar-08 0:41

Hi Thanks for the help,
continue is iterating the current loop but not the main (outer) for loop.
break will just break the current for loop but other loops following it will be executed.
The "goto" is working, if its standard way I want use it.

Thanks,
Suman

Re: loop control

GauranG Shah2-Mar-08 23:24

GauranG Shah

2-Mar-08 23:24

You can use also goto in the following manner.

:loop1 for() //main for loop
{
   for() //for loop1
     {
         if(condition)
         {
          //code
          goto Loop1;
      
         }
      }
   for() //for loop2
      {
      }
   for() //for loop3
      {
      }
}

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Re: loop control

rp_suman3-Mar-08 0:51

rp_suman

3-Mar-08 0:51

Hi, Thanks for the help!!
Presently, I am using the "goto".
"goto" seems smarter than checking the same condition in all for loops and "break"ing from them.

With Thanks,
Suman

BTW,

GauranG Shah wrote:
:loop1 for() //main for loop

Did you mean "loop1: for()", the colon after label?

Re: loop control

BadKarma3-Mar-08 1:54

BadKarma

3-Mar-08 1:54

rp_suman wrote:
Presently, I am using the "goto".
"goto" seems smarter than checking the same condition in all for loops and "break"ing from them.

Not really. The goto statement should rarely be used. It could be used when your application is really time critical. In any other case you should try to use condition.

for() //main for loop
{
 for() //for loop1
 {
  if(condition)
  {
   //code
  }
 }
 if(!condition)
 {
  for() //for loop2
  {
  }
  for() //for loop3
  {
  }
 }  // end if(!condition)
}

codito ergo sum

Re: loop control

rp_suman3-Mar-08 2:27

rp_suman

3-Mar-08 2:27

Hi,
Thanks for the help!!
I will try this method..

Best Regards,
Suman

Skipws

George_George2-Mar-08 21:28

George_George

2-Mar-08 21:28

Hello everyone,

skipws works for both char based and wchar_t based string stream? I have not found formal clarification from MSDN.

http://msdn2.microsoft.com/en-us/library/98bsd5x4.aspx

thanks in advance,
George

Re: Skipws

Maximilien3-Mar-08 0:45

Maximilien

3-Mar-08 0:45

Did you try it ?

I would imagine that if nothing is said specific to that, it would be supported for all formats.

spaces are spaces are spaces.

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: Skipws

George_George3-Mar-08 0:55

George_George

3-Mar-08 0:55

Thanks Maximilien,

I have tested that it works! Cool!

A further question, L"\n" or L"\r" or L"\t" has the same meaning and function in UNICODE compared with ANSI peers "\n" or "\r" or "\t"? Or we should use other terms to represent "\n", "\r" and "\t" meaning of ANSI in UNICODE?

regards,
George

dependent DLL intresting?

Ravinder Are2-Mar-08 20:03

Ravinder Are

2-Mar-08 20:03

Deal experts,

I have some doughts on DLLs.
1) who will load the dependent dll in windows?
2) Do we need to specify any thing in our library to help auto dependent library loading?
3) Does the application needs to specify anything about all dependency libraries?
4) If some loader is doing this job, how it will get the dependent libs information?
5) Does OS will do any job in this regard?
6) what are the data structures used for this automatic dependent libraries loading?

Please explain me the mystry behind this automatic dependent libraries loading in windows? who will do which job and what are datastructures?

thanks in advance,
Ravinder Are

Are

Re: dependent DLL intresting?

Naveen2-Mar-08 21:15

Naveen

2-Mar-08 21:15

In an exe/dll, there will be sections called Import address table, Import directory table etc which will be holding the information about the depended modules and the functions of it. The loader reads this information while loading the exe and loades the dependend modules. if you want learn more, study the structure of Portabel Executale( PE ). Here is a good article An In-Depth Look into the Win32 Portable Executable File Format[^]

nave

[OpenedFileFinder]

How to convert BMP to multipage TIFF file

VmTHiru2-Mar-08 19:46

VmTHiru

2-Mar-08 19:46

hellow everybody!!

can u help me to solve my stuff

/******this code convert BMP file into Single page TIFF file***/

CImage image;
image.Load(_T("C:\\BitmapPrntPages\\film.bmp"));
image.Save(_T("C:\\BitmapPrntPages\\tiff_image1.tif"),ImageFormatTIFF);

/*************************************

i want to convert Bitmap(*.bmp) files into multiPage TIFF file

share your thoughts.

regards
Confused | :confused:

vmthiru

VmTHiru
Software Engineer's

Re: How to convert BMP to multipage TIFF file

ThatsAlok2-Mar-08 20:28

ThatsAlok

2-Mar-08 20:28

VmTHiru wrote:
i want to convert Bitmap(*.bmp) files into multiPage TIFF file

do you want convert single image in multiple tiff image

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You/codeProject$$>

Re: How to convert BMP to multipage TIFF file

Mark Salsbery3-Mar-08 6:57

Mark Salsbery

3-Mar-08 6:57

AFAIK, CImage's save functionality doesn't support appending pages to a TIFF fle.
You'll need to go directly to GDI+ to save the images.

This article, and the code within, may help:
Save images into a multi-page TIFF file or add images to an existing TIFF file[^]

If not, I can throw together example code for you.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: How to convert BMP to multipage TIFF file

Game-point30-Sep-09 19:32

Game-point

30-Sep-09 19:32

Hi Mark ...

how to possible in VC++ ??

Thanks Blush | :O

please help me!!!

rowdy_vc++2-Mar-08 18:46

rowdy_vc++

2-Mar-08 18:46

//Main.h<br />
__interface IFileIO : IDispatch<br />
{<br />
	[id(1), helpstring("method GetFile")] HRESULT GetFile();<br />
	[id(2), helpstring("method getDirectory")] HRESULT GetDirectory();<br />
};<br />
<br />
class ATL_NO_VTABLE EDCService :public IFileIO<br />
{<br />
public:<br />
	EDCService()<br />
	{<br />
	}<br />
DECLARE_PROTECT_FINAL_CONSTRUCT()<br />
HRESULT FinalConstruct()<br />
	{<br />
		return S_OK;<br />
	}<br />
	<br />
	 void FinalRelease()<br />
	{<br />
	}<br />
<br />
public:<br />
<br />
	STDMETHOD(GetFile);<br />
	STDMETHOD(GetDirectory);<br />
}<br />

Hi friends ...

STDMETHOD(GetFile);<br />
STDMETHOD(GetDirectory); these two methods definitions are written main.cpp

i doing so many try's to solve this prob..first i create instance of EDCService.like

EDCService edcobj;

then i create instance of EDCService like

edcobj.CreateInstance(); but showing..

When i compile this code i get the follwing errors i dont know how was solve it

error C2039: 'CreateInstance' : is not a member of 'EDCService'

error C2259: 'EDCService' : cannot instantiate abstract class

Please tell me how to solve this problem ..

*****THANKS N ADVANCE****
Mathen.K
(I WILL TRY MY LEVEL BEST )

Re: please help me!!!

KASR12-Mar-08 19:10

KASR1

2-Mar-08 19:10

use smart pointers as below;

EDCServicePtr edcobj;
edcobj.CreateInstance(.......);

Re: please help me!!! [modified]

rowdy_vc++2-Mar-08 19:17

rowdy_vc++

2-Mar-08 19:17

Thanks 2 your replay ..

i cant understand ..please tell me briefly and also how to use smart pointers..in my class

*****THANKS N ADVANCE****
Mathen.K
(I WILL TRY MY LEVEL BEST )

modified on Monday, March 3, 2008 1:45 AM

Re: please help me!!!

Rajesh R Subramanian2-Mar-08 21:26

Rajesh R Subramanian

2-Mar-08 21:26

Can you please keep the subject line of your post descriptive? Anything other than PLZZZ HELP, URGENT HELP REQUIRED, PROGRAM NOT WORKING, etc? Hmmm | :|

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Menu of ActiveX control

includeh102-Mar-08 17:22

includeh10

2-Mar-08 17:22

I want to add a normal menu to ActiveX control, is it possible?

if yes, how to add it?

thx

How to convert CString to int in UNICODE app?

TooShy2Talk2-Mar-08 16:50

TooShy2Talk

2-Mar-08 16:50

Hi again,

Now that I'm using UNICODE app, I'm having an error when I tried to convert CString to int using atoi.
How can I convert CString to int in UNICODE app?

Hope you can comment thank you.

Re: How to convert CString to int in UNICODE app?

Haroon Sarwar2-Mar-08 17:31

Haroon Sarwar

2-Mar-08 17:31

wtoi?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.