C / C++ / MFC Discussion Boards

Martin Marvinski31-Oct-05 16:37

31-Oct-05 16:37

How do I create a folder in the Program Files directory programatically? I haven't programmed in Win32 the last few years and don't have my win code to refresh my memory. I know it is some COM object function that gets the special location like Trash, Program Files, History..

Thanks in advance.

Re: Program Files special folder location.

khan++31-Oct-05 17:53

khan++

31-Oct-05 17:53

LPITEMIDLIST pid;<br />
HRESULT hr;<br />
//replace 0x0026 by CSIDL_PROGRAM_FILES if you have a newer sdk.<br />
hr = SHGetSpecialFolderLocation(m_hWnd,0x0026,&pid);<br />
<br />
TCHAR path[MAX_PATH];<br />
SHGetPathFromIDList(pid,path);<br />
//now path contains what you want.<br />
<br />
LPMALLOC mal;<br />
SHGetMalloc(&mal);<br />
mal->Free(pid);

I hope it works, and is without errors.

this is this.

MFC FormView

ltallman31-Oct-05 16:33

ltallman

31-Oct-05 16:33

I have used the MFC application wizard in Visual C 6.0 to create a FormView application. The resultant FormView contain the word "Untitled" before the program name I supplied. What is an acceptable method of eliminating the word "Untitled"?

Re: MFC FormView

Christian Graus31-Oct-05 16:35

Christian Graus

31-Oct-05 16:35

I believe SetWindowText on the main window is what you need.

Christian Graus - Microsoft MVP - C++

Re: MFC FormView

Arman S.31-Oct-05 21:07

Arman S.

31-Oct-05 21:07

Hi,

Put the following code in CMainFrame::PreCreateWindow

cs.style &= ~FWS_ADDTOTITLE ;

--
======
Arman

Unicode, hexadecimal and japanese.

samkook31-Oct-05 14:33

samkook

31-Oct-05 14:33

I'm trying to convert some hexadecimal values into japanese text and I can't figure how to do it. I know I have to use a char set that have the japanese chars like unicode and that japanese is multibytes, but i can't seem to find enough information about how i'm supposed to do it.

It would be awesome if someone could help me whit that.

Re: Unicode, hexadecimal and japanese.

__yb31-Oct-05 21:20

__yb

31-Oct-05 21:20

U gotta use WideCharToMultiByte and MultiByteToWideChar.
If u tell me the exact format of the input I'll be able to tell u the exact process of decoding.

Re: Unicode, hexadecimal and japanese.

samkook1-Nov-05 7:31

samkook

1-Nov-05 7:31

I'm reading from a binary file each hexadecimal byte that i put into an integer, and i was converting them into a wchar, and trying to put 2 byte together, but that didn't really work. And finally i was displaying them into a textbox. And I also want to do the reverse process.

Re: Unicode, hexadecimal and japanese.

__yb1-Nov-05 11:51

__yb

1-Nov-05 11:51

Lets make a little test - u create a little file from what u got, save with the extension .txt, drop it into IE and play with the encoding - try unicode/japaneesse/...
If u can't make it show something u probably did something wrong in decoding the file.

Re: Unicode, hexadecimal and japanese.

samkook1-Nov-05 15:40

samkook

1-Nov-05 15:40

I managed to display japanese chars, but it's not the good char that is displayed.

could you help me on how to start from 2 separated bit of hexadecimal and put them together correctly to display the good japanese char.

Debugged some strange Error and Now ???

tbrake31-Oct-05 10:04

tbrake

31-Oct-05 10:04

Hi
I have written some MFC Code - But its not working on all machines !!!

<br />
//MyAppView.pp<br />
...<br />
#include "device.h"<br />
#include "receiver.h"<br />
...<br />
#include "MyAppView.h"<br />
<br />
<br />
....<br />

<br />
// device.h<br />
class CDEVICE<br />
{<br />
public:<br />
...<br />
    virtual void doA()=0;<br />
    virtual void doB()=0;<br />
    virtual void doC()=0;<br />
...<br />
}<br />

<br />
// receiver.h<br />
class CRECEIVER : public CDEVICE<br />
{<br />
public:<br />
...<br />
    virtual void doA();<br />
    virtual void doB();<br />
    virtual void doC();<br />
...<br />
}<br />

On some XP machines I retrieve an error after returning from doA()
I debuged with DRWatson

<br />
        6036719d 33c9             xor     ecx,ecx<br />
        6036719f eb03             jmp     MyApp+0x771a4 (603671a4)<br />
FEHLER ->603671a1 8b4e1c           mov     ecx,[esi+0x1c]    ds:0023:3034324c=????????<br />
        603671a4 ff742410         push    dword ptr [esp+0x10]<br />
        603671a8 50               push    eax<br />

And the Corresponding MAP file delivered

<br />
 0001:000760ea       ?ActivateTopParent@CWnd@@QAEXXZ 603670ea f   nafxcw:wincore.obj<br />
<big> 0001:00076127       ?GetTopLevelFrame@CWnd@@QBEPAVCFrameWnd@@XZ 60367127 f   nafxcw:wincore.obj</big><br />
 0001:00076168       ?GetSafeOwner@CWnd@@SGPAV1@PAV1@PAPAUHWND__@@@Z 60367168 f   nafxcw:wincore.obj<br />
 0001:00076186       ?MessageBoxA@CWnd@@QAEHPBD0I@Z 60367186 f   nafxcw:wincore.obj<br />

So there should be an error in or at
GetTopLevelFrame
can this be true ??
And/OR how to determin the exact error position ??

Any Idear might help Please !!

THX Tim Confused | :confused:

UPS Meant 'ActivateTopParent'

tbrake31-Oct-05 10:07

tbrake

31-Oct-05 10:07

I meant error at

<br />
ActivateTopParent<br />

....

Tim

Re: Debugged some strange Error and Now ???

Joe Woodbury31-Oct-05 10:49

Joe Woodbury

31-Oct-05 10:49

I'm going to totally wing it and guess that you are calling an instance of CDevice before the main window is actually done being created. The solution is to have the OnCreate message initialize communication with CDevice.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Re: Debugged some strange Error and Now ???

tbrake31-Oct-05 11:09

tbrake

31-Oct-05 11:09

Hi
No ... Sorry ...

CDEVICE is initialised in the myAppView Constructor, but the work starts after clicking a menu buttom
for example:

<br />
void startWork()<br />
{<br />
  doA();<br />
  doB();<br />
  doC();<br />
}<br />

<br />
void startWork()<br />
{<br />
  doB();<br />
  doA();<br />
  doC();<br />
}<br />

I tried all combinations the error allways comes at returning from doA()??!??!!

Any suggestions ?

Tim

files

Manu_8131-Oct-05 8:12

Manu_81

31-Oct-05 8:12

FILE *Ofile;

	<br />
int fCnt = 0;<br />
sprintf(gz_op_fname,"TargetStatistics%d.txt",fCnt);<br />
while ((Ofile = fopen(gz_op_fname, "r")) != NULL)<br />
{<br />
       sprintf(gz_op_fname,"TargetStatistics%d.txt",++fCnt);<br />
       fclose(Ofile);<br />
}<br />

I have the above code to create a file TargetStatistics%d.txt.
ie. if TargetStatistics0.txt, TargetStatistics1.txt already exists, then TargetStatistics2.txt will be created.

But sometimes with this code I get Invalid handle exception in the while loop.
and I occurs often when there are more files, say it has to create TargetStatistics20.txt.

Whats the problem here. Thanks in advance.

Re: files

Mircea Puiu31-Oct-05 8:33

Mircea Puiu

31-Oct-05 8:33

Which line do you suppose is going to create the file within yor piece of code?

SkyWalker

Re: files

Manu_8131-Oct-05 8:50

Manu_81

31-Oct-05 8:50

oops..sorry I didnt include the part of code that creates the file.
But the exception is surely occuring in the while loop that I had shown in my previous post, for i checked with outputdebug messages. I also included a debug message inside the while loop, and every time its happening after TargetStatistics5.txt or TargetStatistics6.txt.
Thanks.

Re: files

Mircea Puiu31-Oct-05 8:54

Mircea Puiu

31-Oct-05 8:54

Could you provide the loop as it is? More chances for real help Smile | :)

SkyWalker

Re: files

Mircea Puiu31-Oct-05 8:56

Mircea Puiu

31-Oct-05 8:56

... and also, how is gz_op_fname declared?

SkyWalker

Re: files

Manu_8131-Oct-05 9:23

Manu_81

31-Oct-05 9:23

  <br />
char gz_op_fname[100]; //global variable<br />
...<br />
OutputDebug("Data Acq\n");<br />
	<br />
	//create output file<br />
	sprintf(gz_op_fname,"TargetStatistics%d.txt",fCnt);<br />
	while ((Ofile = fopen(gz_op_fname, "r")) != NULL)<br />
	{<br />
		OutputDebug(gz_op_fname);<br />
		sprintf(gz_op_fname,"TargetStatistics%d.txt",++fCnt);<br />
		fclose(Ofile);<br />
	}<br />
	<br />
		OutputDebug("Search Op file \n");<br />

these are the debug messages...
TOUCHCORDTOOL : Data Acq

TOUCHCORDTOOL : TargetStatistics0.txt
TOUCHCORDTOOL : TargetStatistics1.txt
TOUCHCORDTOOL : TargetStatistics2.txt
TOUCHCORDTOOL : TargetStatistics3.txt
TOUCHCORDTOOL : TargetStatistics4.txt
TOUCHCORDTOOL : TargetStatistics5.txt
TOUCHCORDTOOL : TargetStatistics6.txt
TOUCHCORDTOOL : TargetStatistics7.txtFirst-chance exception at 0x77f91c3c in EloTouchCordTool-Circle.exe: 0xC0000008: An invalid HANDLE was specified.
Unhandled exception at 0x77f91c3c in EloTouchCordTool-Circle.exe: 0xC0000008: An invalid HANDLE was specified.

Re: files

David Crow31-Oct-05 9:19

David Crow

31-Oct-05 9:19

Manu_81 wrote:
But sometimes with this code I get Invalid handle exception in the while loop.
and I occurs often when there are more files, say it has to create TargetStatistics20.txt.

Have you tried single-stepping through the code and noting the value of gz_op_fname when the exception is thrown? Is the variable large enough (e.g., MAX_PATH).

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: files

Manu_8131-Oct-05 9:28

Manu_81

31-Oct-05 9:28

If I do single stepping this exception does'nt occur.

Re: files

David Crow31-Oct-05 10:01

David Crow

31-Oct-05 10:01

Does the following help:

FILE *pFile;
char szFilename[MAX_PATH];
int nCount = -1;
 
do
{
    nCount++;
    sprintf(szFilename, "TargetStatistics%d.txt", nCount);
} while (_access(szFilename, 0) == 0);
 
pFile = fopen(szFilename, "r");
...
fclose(pFile);

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: files

Manu_8131-Oct-05 10:52

Manu_81

31-Oct-05 10:52

Sure that helped...Thanks a bunch.
Also I tried with Sleep(50) before fclose (inside the while loop-in my code from the previous posts) and it "seemed" to solve the problem.
interesting hun!!!!!

Re: files

David Crow31-Oct-05 10:59

David Crow

31-Oct-05 10:59

Manu_81 wrote:
interesting hun!!!!!

Not really. I suspected it had something to do with too many file open/close requests hence my suggestion for only one.

"Take only what you need and leave the land as you found it." - Native American Proverb

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