Is there a GetRedraw function or message? - C / C++ / MFC Discussion Boards

nmx_de25-Jul-06 2:22

25-Jul-06 2:22

Sorry for that. Thought it would be clear as i might not be the only one ever who tried to read a file into an array.

When I read a text file, I get the content of the file properly.
When I read another file (for example pdf), i only get an output like this:

<br />
%PDF-1.5<br />
$??<br />

Maybe it's an encoding problem, because the string is follow by some special characters. (Took a look at it in UltraEdit)

<br />
%PDF-1.5<br />
%âãÏÓ<br />
149 0 obj <</Linearized 1/L 1097<br />
...<br />

Is it possible only to read the binary value of the file?

Regards, n.

Re: file to array

Parthi_Appu25-Jul-06 2:28

Parthi_Appu

25-Jul-06 2:28

thats right... if you write the file_array as that type of file say 1.pdf then if u open the file then you can get the excat data...

Do your Duty and Don't expect the Result

Re: file to array

nmx_de25-Jul-06 2:46

nmx_de

25-Jul-06 2:46

Wow, seems to be one of my bad hair days.
I still missed to provide some information. I don't want to have a pdf file (or any other binary file) as a result. I only want to get the binary representation of the file. And this has to be some kind of string or char array.

Re: file to array

Cedric Moonen25-Jul-06 2:57

Cedric Moonen

25-Jul-06 2:57

nmx_de wrote:
I only want to get the binary representation of the file. And this has to be some kind of string or char array.

No, a binary file contains junk characters and if you try to display it, you will have junk characters on the screen. Try to open the file with notepad and you will see what's inside.
And what do you mean by 'binary representation' ?

Cédric Moonen
Software developer

Charting control

Re: file to array

Cedric Moonen25-Jul-06 2:43

Cedric Moonen

25-Jul-06 2:43

What are you trying to do exactly ? And what is the purpose ?
It's normal that if you try to display the contents of a binary file, you will have junk characters. That's simply because the purpose of a binary file is not to be readable (by a human I mean). So, what did you expect ?

Cédric Moonen
Software developer

Charting control

Re: file to array

earl25-Jul-06 4:20

earl

25-Jul-06 4:20

What did you think you were going to get? That's what a binary file is.

Open it in any hex reader (or visual studio -- do file->open and select "Open As" = binary).

earl

Re: file to array

Parthi_Appu25-Jul-06 2:25

Parthi_Appu

25-Jul-06 2:25

I hope you are getting some junk value... in file_array for non text files..
if so, its obvious... because you are trying to view char value which is not char...
But for text files the data are in the form of char

Do your Duty and Don't expect the Result

Is there a GetRedraw function or message?

Paul Vickery25-Jul-06 0:33

Paul Vickery

25-Jul-06 0:33

I frequently use SetRedraw(FALSE) -> do drawing stuff -> SetRedraw(TRUE), but I sometimes have an outer drawing loop that does this, which calls, as part of the drawing, something else that also turns off/on redrawing, thus overriding the 'outer' loop's redraw flag. I have wondered if anyone knows of any way of determining the current value of the redraw flag for a window?

"The way of a fool seems right to him, but a wise man listens to advice" - Proverbs 12:15 (NIV)

Re: Is there a GetRedraw function or message?

Michael Dunn25-Jul-06 7:16

Michael Dunn

25-Jul-06 7:16

Check out LockWindowUpdate() - that may work better in your situation

--Mike--
Visual C++ MVP Cool | :cool:

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assigningn your application to a protocol [modified]

hell_admin25-Jul-06 0:29

hell_admin

25-Jul-06 0:29

hello everyone,
I need to assign my App to some protocol like this:
I am on a website that contains <A HREF="someprotocol://someaddr">
it will load the program and pass this as the command line

-- modified at 6:29 Tuesday 25th July, 2006

Re: assigningn your application to a protocol

David Crow25-Jul-06 3:03

David Crow

25-Jul-06 3:03

hell_admin wrote:
I need to assign my App to some protocol like this:
I am on a website that contains <A HREF="someprotocol://someaddr">
it will load the program and pass this as the command line

This is just a guess, but try merging the following into your registry:

[HKEY_CLASSES_ROOT\someprotocol\shell\open\command]
@="\"C:\\Program Files\\somefolder\\someprog.exe\" %1"

Re: assigningn your application to a protocol

hell_admin26-Jul-06 3:02

hell_admin

26-Jul-06 3:02

You're not so far from the truth
here's result maybe someone needed:
bool SetMoniker()
{

CString url = _T("your protocol");
CString def = _T("URL:someproto"); //can change after URL:

TCHAR app_path[_MAX_PATH+1]=_T("\0");
GetModuleFileName(NULL,app_path,_MAX_PATH);

CString icon(app_path);
icon += _T(",0");
CString command(app_path);
command = _T("\"") + command + _T("\"");
command += _T(" \"%1\"");

HKEY key;
if (ERROR_SUCCESS == RegCreateKeyEx(HKEY_CLASSES_ROOT,_T("someproto"),0,0,REG_OPTION_NON_VOLATILE,KEY_WRITE,0,&key,0))
{
RegSetValueEx(key,_T("URL Protocol"),0,REG_SZ,(BYTE*)url.GetString(),(DWORD)( url.GetLength()*sizeof (TCHAR)) );
RegSetValueEx(key,NULL,0,REG_SZ,(BYTE*)def.GetString(),(DWORD)( def.GetLength()*sizeof (TCHAR)) );
HKEY icon_key;
if( ERROR_SUCCESS == RegCreateKeyEx(key,_T("DefaultIcon"),0,0,REG_OPTION_NON_VOLATILE,KEY_WRITE,0,&icon_key,0))
{
RegSetValueEx(icon_key,NULL,0,REG_SZ,(BYTE*)icon.GetString(),(DWORD)( icon.GetLength()*sizeof (TCHAR)) );
RegCloseKey(icon_key);
}

HKEY com;
if( ERROR_SUCCESS == RegCreateKeyEx(key,_T("shell\\open\\command"),0,0,REG_OPTION_NON_VOLATILE,KEY_WRITE,0,&com,0))
{
RegSetValueEx(com,NULL,0,REG_SZ,(BYTE*)command.GetString(),(DWORD)( command.GetLength()*sizeof (TCHAR)));
RegCloseKey(com);
}

RegCloseKey(key);
return true;
}
return false;
}

WMA To WAV

yhl2ws24-Jul-06 23:53

yhl2ws

24-Jul-06 23:53

Hello:

I want to change wma to wav,I find it difficult.
Who know the source code about it, pls tell me.

Thanks

Re: WMA To WAV

toxcct25-Jul-06 0:01

toxcct

25-Jul-06 0:01

you asked this 2 hours ago... wait a little dude Frown | :(

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: WMA To WAV

ThatsAlok25-Jul-06 0:34

ThatsAlok

25-Jul-06 0:34

toxcct wrote:

tooo ->

good .. atleast you stop getting mad!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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

Re: WMA To WAV

Hamid_RT25-Jul-06 2:35

Hamid_RT

25-Jul-06 2:35

I guess that he dont ask this question again because he knows you are here

Re: WMA To WAV

toxcct25-Jul-06 2:40

toxcct

25-Jul-06 2:40

it's not what he should tell himself Frown | :(

people post because they have a question to ask... but once the thread is started, you have to continue to discuss on the same thread, not asking and asking until you get a response

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Blocking

tanarnelinistit24-Jul-06 23:30

tanarnelinistit

24-Jul-06 23:30

Hello i'm using a neverending loop to read informations from the COM but the problem is that the reading process blocks my aplication. Not to listen to the COM all the time is not an option. What should I do to use the aplication in this time?

Re: Blocking

_AnsHUMAN_ 24-Jul-06 23:32

_AnsHUMAN_

24-Jul-06 23:32

Can you put the reading process in a thread?

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Blocking

tanarnelinistit24-Jul-06 23:34

tanarnelinistit

24-Jul-06 23:34

I don't get it. What do you mean? Be more specific, please.

Re: Blocking

_AnsHUMAN_ 25-Jul-06 0:05

_AnsHUMAN_

25-Jul-06 0:05

tanarnelinistit wrote:

neverending loop to read informations from the COM

Why don't you put this loop inside a thread function to read the COM port>?if you do so you can keep on reading the COM port in the thread and leave your main application's thread working.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Blocking

Eytukan25-Jul-06 0:30

Eytukan

25-Jul-06 0:30

Create a worker thread and put your

<br />
do<br />
{<br />
//your COM reading code<br />
}while;<br />

loop inside the Thread function.

<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">--[ Jig | [Dance]

]--

[My Current Status]
I dont know why the hell the script for voting 5 is disabled only for me?? Mad | :mad:

Re: Blocking

tanarnelinistit25-Jul-06 0:36

tanarnelinistit

25-Jul-06 0:36

and how do i create a worker thread?

Re: Blocking

Eytukan25-Jul-06 1:05

Eytukan

25-Jul-06 1:05

simple... Follow these steps :
you have a function. ReadCOM(). You dont want this to block your application.

declare these in your header may be COMPROG.h

<br />
//COMPROG.h<br />
static UINT MyThread(LPVOID lp);<br />
void ReadCOM();<br />

in the implementation,

COMPROG.cpp<br />
AfxBeginThread(MyThread,this);// Your call to start the thread.<br />

Your Thread:

<br />
UINT MyThread(LPVOID lp)<br />
{<br />
 CCOMPROG* obj = (CCOMPROG*)lp; //To access the  ReadCOM function, or you can pass any function, with using the void pointer.<br />
 obj->ReadCOM(); <br />
}<br />

Your Fcuntion:

<br />
void ReadCom()<br />
{<br />
 do<br />
  {<br />
   //Your Code to read COM<br />
  }while(x==true);//your condition<br />
}<br />

Re: Blocking

tanarnelinistit25-Jul-06 1:23

tanarnelinistit

25-Jul-06 1:23

Thanks a lot I folowed your code but ended up with the folowing error message : error C4716: 'CMina_sView::MyThread' : must return a value; i tryed to insert a return 0 or return TRUE but that wasn't much of a help as I got the same result: program blocked. so??!?

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