Dummy Line - C / C++ / MFC Discussion Boards

Cedric Moonen20-Aug-08 21:54

20-Aug-08 21:54

No, I don't because you didn't answer my question. And furthermore, this totally depends on the device with which you want to communicate.

Cédric Moonen
Software developer

Charting control [v1.4]
OpenGL game tutorial in C++ [Part 2 online]

Re: Copy USB Device Data To System

NewVC++20-Aug-08 22:05

NewVC++

20-Aug-08 22:05

Ok Device type is pendrive,ipode..

Re: Copy USB Device Data To System

Cedric Moonen20-Aug-08 22:11

Cedric Moonen

20-Aug-08 22:11

For the pendrive, you can access it the same way you access a local file, the driver takes care of that. I don't know for the ipod but I guess it is a similar principle. Anyway, you will never really see that these devices are accessed through USB.

Cédric Moonen
Software developer

Charting control [v1.4]
OpenGL game tutorial in C++ [Part 2 online]

Re: Copy USB Device Data To System

NewVC++20-Aug-08 22:21

NewVC++

20-Aug-08 22:21

ok Now can you give me tutorial link

Re: Copy USB Device Data To System

Cedric Moonen20-Aug-08 22:27

Cedric Moonen

20-Aug-08 22:27

Well, it is just accessing a file. See here[^] for example.

Cédric Moonen
Software developer

Charting control [v1.4]
OpenGL game tutorial in C++ [Part 2 online]

Re: Copy USB Device Data To System

SandipG 20-Aug-08 22:23

SandipG

20-Aug-08 22:23

Do you want to Copy files from the USB memory device to system??

If yes

You can access it as any other normal system drive and use
CopyFile(..) to copy the files from the memory.

Regards,
Sandip.

Re: Copy USB Device Data To System

User 21559720-Aug-08 23:01

User 215597

20-Aug-08 23:01

NewVC++ wrote:
Can any one give me tutorial or example link of How to Copy USB Data to System

As mentioned in my answer to your question yesterday, use the regular File API like CreateFile, ReadFile etc

NewVC++ wrote:
When any one try to copy Data from usb Device to System(PC) then show a message.

SHChangeNotifyRegister[^] might be helpful.

You may also consider writing a filter driver

Sohail

Please mark helpful answers

modified 21-Apr-21 21:01pm.

Dummy Line

NewVC++20-Aug-08 20:31

NewVC++

20-Aug-08 20:31

Hi All

I have a problem to Show USB Drive Name and File name.Problen is that when i insert a USB device then Drive Name and file name is show but also show Some dummy line like this

"ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌA".

I debug the code.When i change the this line

char chDriveLabel='A'; to char chDriveLabel='B';

then it is working fine.But when i change this line then i have found some problem like when i insert the

first usb device

then nothing show and when i insert

more than i device

then it is showing.So Plz help me code is here

BOOL CUSBDlg::FileList()
{							
	
	

          //Get Logical Drives

          DWORD dwDrives=GetLogicalDrives();

 

          if(0==dwDrives)

          {

                  return FALSE;

          }

 

          DWORD dwCount=0;

 

          char chDriveLabel='A';

 

          char szRootpath[5]={0,0,0,0,0};

 

          while(dwDrives !=0)

          {

                   if ((dwDrives & 1) != 0)

                   {

                             sprintf(szRootpath,"%c:\\",chDriveLabel);

 

                             //removable drive

                             if(DRIVE_REMOVABLE==GetDriveType(szRootpath))

                             {

                                      WIN32_FIND_DATA FindFileData;

                                      HANDLE hFind;

 

                                      //Removable dirve lable

                                 //   std::cout <<"Files in " << szRootpath << std::endl;

									
									
									 m_ListCountries.AddString(szRootpath);
									 	//  AfxMessageBox(szRootpath);

									 m_tree.InsertItem(szRootpath);

									 
									 
                                      //* represent search all files and directories

                                      szRootpath[3]='*';

 

                                      hFind=FindFirstFile(szRootpath,&FindFileData);

 

                                      if (INVALID_HANDLE_VALUE == hFind) 

                                      {

                                        //       return FALSE;

                                      } 

 
   
									 
                                      // List all the files in the directory .

                                      do

                                      {
											

                                                //ignore the sub directories

                                               if (strcmp(FindFileData.cFileName,_T(".")) && strcmp(FindFileData.cFileName,_T(".."))) 

                                                {
													
														 m_ListCountries.AddString(FindFileData.cFileName);
														//  AfxMessageBox(FindFileData.cFileName);
													 m_tree.InsertItem(FindFileData.cFileName);

                                                }

											   AfxMessageBox("helloP");

											   AfxMessageBox(FindFileData.cFileName);

											

                                      }while (FindNextFile(hFind, &FindFileData) != 0);

 

                                      FindClose(hFind);

                             }

 

                   }

                   dwDrives = dwDrives >> 1;//next drive

                   chDriveLabel++;

          }
		 
		  return true;

}

Repost.

CPallini20-Aug-08 22:08

CPallini

20-Aug-08 22:08

That's a repost.
BTW, as suggested yesterday, why don't you handle the FindFirstFile function failure?

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

[My articles]

Re: Repost.

NewVC++20-Aug-08 22:28

NewVC++

20-Aug-08 22:28

ok so what i use there in place of FindFirstFile

Re: Repost.

CPallini20-Aug-08 22:36

CPallini

20-Aug-08 22:36

Actually handling FindFirstFile failure means: take an adequate action whenever the function fails (for instance, stop further elaboration and report the user that no file was found). You do nothing in such circumstance.
I'm not suggesting you to use another function.
Smile | :)

Re: Repost.

NewVC++20-Aug-08 23:47

NewVC++

20-Aug-08 23:47

ok then what i do to remove that problem..

Plz help me

Re: Repost.

toxcct20-Aug-08 23:52

toxcct

20-Aug-08 23:52

NewVC++ wrote:
ok then what i do to remove that problem

you 1) reread the answers you got correctly, and 2) you fully understand them.

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Re: Repost.

CPallini20-Aug-08 23:56

CPallini

20-Aug-08 23:56

while ( ! problem_solved )
{
  <a href="http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=2688026" target="_blank" title="New Window">follow_this_advice()</a>
};

Re: Repost.

David Crow21-Aug-08 3:35

David Crow

21-Aug-08 3:35

Hint: If FindFirstFile() is failing, do you think it makes much sense to go on into the while() loop?

Roll eyes | :rolleyes:

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Repost.

NewVC++21-Aug-08 18:19

NewVC++

21-Aug-08 18:19

i am useing FindFirstFile() code is here

hFind=FindFirstFile(szRootpath, &FindFileData);

if (INVALID_HANDLE_VALUE == hFind)

{

// return FALSE;

}

// List all the files in the directory .

do

{

//ignore the sub directories

if (strcmp(FindFileData.cFileName,_T(".")) && strcmp(FindFileData.cFileName,_T("..")))

{

m_ListCountries.AddString(FindFileData.cFileName);

// AfxMessageBox(FindFileData.cFileName);
m_tree.InsertItem(FindFileData.cFileName);

}

//AfxMessageBox("helloP");

// AfxMessageBox(FindFileData.cFileName);

}while (FindNextFile(hFind, &FindFileData) != 0);

FindClose(hFind);

}

Re: Repost.

David Crow22-Aug-08 8:09

David Crow

22-Aug-08 8:09

NewVC++ wrote:
i am useing FindFirstFile()...

No one is debating that. The problem is that you are continuing on even if that function fails.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

What Functions are called

Taruni20-Aug-08 20:05

Taruni

20-Aug-08 20:05

Hi,

I have two functions funx() and funy() in my VC++ application.Could someone suggest me a tool/mechanism as how to find which functions (application flow)are called in between funx() and funy().

I need this urgently.

Thanks in advance.

Taruni

Re: What Functions are called

Hamid_RT20-Aug-08 20:24

Hamid_RT

20-Aug-08 20:24

Im not sure Im understood your question but why you dont use of deugger(F11 or F10/breakpoints)?

Re: What Functions are called

Taruni20-Aug-08 20:57

Taruni

20-Aug-08 20:57

Thank You Hamid.

What I want to know is whether there is any tool that lists the functions called in between funx() and funy()

Taruni

Re: What Functions are called

toxcct20-Aug-08 21:16

toxcct

20-Aug-08 21:16

Taruni wrote:
What I want to know is whether there is any tool that lists the functions called in between funx() and funy()

yes, the DEBUGGER does it ! by showing the call stack.

but you seem to be to lazy to search a bit by yourself...

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Re: What Functions are called

Rajesh R Subramanian20-Aug-08 20:26

Rajesh R Subramanian

20-Aug-08 20:26

Taruni wrote:
I have two functions funx() and funy() in my VC++ application.Could someone suggest me a tool/mechanism as how to find which functions (application flow)are called in between funx() and funy().

Normally you can use the debugger.

Taruni wrote:
I need this urgently.

But that's bothering me. For urgent purposes, I don't know if the debugger will help. Smile | :)

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: What Functions are called

Naveen20-Aug-08 22:20

Naveen

20-Aug-08 22:20