Digital Camera - C / C++ / MFC Discussion Boards

Convert WCHAR * to TCHAR *

amitmistry_petlad 11-Apr-07 1:24

amitmistry_petlad

11-Apr-07 1:24

Hi !
Everybody.
How do I convert WCHAR * to TCHAR * ?

"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India

Re: Convert WCHAR * to TCHAR *

Try11-Apr-07 2:00

Try

11-Apr-07 2:00

I don't know exactly. But try

W2T

Its ATL String Conversion Macro.
For Ref: http://msdn2.microsoft.com/en-us/library/87zae4a3(VS.80).aspx[^]

Check out and Let me know from you whether it worked or not..

Re: Convert WCHAR * to TCHAR *

Mark Salsbery11-Apr-07 6:35

Mark Salsbery

11-Apr-07 6:35

A WCHAR is a set type (an unsigned short).

TCHAR is a type macro that varies depending on whether _UNICODE is defined or not:
If _UNICODE is defined, TCHAR is a wchar_t
If _UNICODE is not defined, TCHAR is a char

So, if _UNICODE is defined, no conversion is necessary.
If _UNICODE is not defined, you may need to convert the string pointed to by the WCHAR* to a char
string. You can use MultiByteToWideChar() API for this.

Mark

"If you can dodge a wrench, you can dodge a ball."

Use cout in binary mode

Cedric Moonen11-Apr-07 1:02

Cedric Moonen

11-Apr-07 1:02

Hello,

I'm currently working on an application that communicates with a Java application. The communication is done using the standard input/output streams (when Java spawn the native application, it can retrieve its I/O streams). Everything works fine except when a byte with value '10' is sent (which correspond to a line feed character). In that case, a cariage return ('13') is added just after it. I know that when working with files, you can avoid this behavior by opening the file in binary mode (instead of text mode). But how can this be done with the cout ? Is there any way to change this behavior without closing the stream and reopening it ? (And even that I don't know if this is possible).

For information, I write data to the stream using the write function:
cout.write(pMyData,myDataSize);

Thanks

Cédric Moonen
Software developer

Charting control [v1.1]

Re: Use cout in binary mode

Nemanja Trifunovic11-Apr-07 4:08

Nemanja Trifunovic

11-Apr-07 4:08

Have you tried _setmode[^]?

Programming Blog
utf8-cpp

Re: Use cout in binary mode

Cedric Moonen11-Apr-07 4:43

Cedric Moonen

11-Apr-07 4:43

Nice, it works Big Grin | :-D

I didn't know that you could do that.

Thank you.

Cédric Moonen
Software developer

Charting control [v1.1]

dbase

akram mirzaei11-Apr-07 0:39

akram mirzaei

11-Apr-07 0:39

hi
I have started VC++ for programming pc in few days later . then i'mnot very strong but i'm very interesting to learn .
now i want a dbase program with access to read .
i want a very simple program with source file .
can you send me this program?
please
tnksalot

Digital Camera

natrum1000010-Apr-07 23:51

natrum10000

10-Apr-07 23:51

Hi Friends,

I am developing application to recover deleted images from digital still cameras, every digital camera when attached to PC running windows, can be mounted as Digital Camera (through WIA(windows image aquisition))or USB Mass storage media.
I ask to guide me that which way i proceed that sure shot help me able to recover deleted files from camera.Code is in VC++.
Kindly reply.

Thankyou

Re: Digital Camera

Mark Salsbery11-Apr-07 6:38

Mark Salsbery

11-Apr-07 6:38

What makes you think the images are recoverable? Whatever documentation states that is a good
place to start.

Mark

"If you can dodge a wrench, you can dodge a ball."

Re: Digital Camera

natrum1000011-Apr-07 23:57

natrum10000

11-Apr-07 23:57

I didn't get you, we can recover images from digital media storage, but my problem is ,how to recover images out when camera is attached to system ,and is not visible as USB mass storage device.

Re: Digital Camera

natrum1000012-Apr-07 0:01

natrum10000

12-Apr-07 0:01

I didn't get you,
I can recover deleted images from digital camera storage(flash cards) ,
But my question is ,how to recover deleted images out when camera is attached to system ,and is not accessible as USB mass storage device.

Catching the enter keydown with several edit controls

Accius10-Apr-07 23:35

Accius

10-Apr-07 23:35

Hi,
i have a dialog with several edit controls in it,each associated to a different set of commands.
I would like to catch the enter key press for all of them.

Just to make myself more clear:suppose i have 3 edit controls in the dialog.
If the user writes in the first of them and press enter,i want the A function to be called.
If the user writes in the second and press enter,i want the B function to be called.
If the user writes in the third and press enter,i want a message box to appear.

I already made some search and found something about controls subclassing.Is that the (complicated Smile | :)

) way to solve my problem?If so,how can i do that?

Re: Catching the enter keydown with several edit controls

vimarsh puneet10-Apr-07 23:46

vimarsh puneet

10-Apr-07 23:46

You set a flag of integer when ever and edit box is selected you can give the respective value to it. for example
declare this in the main header file

<br />
int val;<br />

add this event handler for each edit box

<br />
void CtabdlgDlg::OnEnSetfocusEdit1()<br />
{<br />
val=1;<br />
}<br />

and when enter is pressed you can check the value to the variable val and execute that respective function

Converting character array to LPCTSTR

siddharthsan10-Apr-07 23:16

siddharthsan

10-Apr-07 23:16

Hi,

Please anybody tell me how to convert a character array(char a[11]) to LPCTSTR???

Thank you

Siddharth

Re: Converting character array to LPCTSTR

Programm3r10-Apr-07 23:33

Programm3r

10-Apr-07 23:33

Hi,

What about:

LPCTSTR var1 = "Test";
char a[11]={0};
strcpy(a, var1);
//or maybe this
LPCTSTR var1;
char a[11]="abcdefghijk";
strcpy(var1, a)

Regards,

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: Converting character array to LPCTSTR

CPallini10-Apr-07 23:43

CPallini

10-Apr-07 23:43

you can't do that if _UNICODE is defined.
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.

Re: Converting character array to LPCTSTR

Programm3r10-Apr-07 23:47

Programm3r

10-Apr-07 23:47

CPallini wrote:
you can't do that if _UNICODE is defined

Forgot about the _UNICODE ... My bad Smile | :)

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: Converting character array to LPCTSTR

CPallini10-Apr-07 23:41

CPallini

10-Apr-07 23:41

if _UNICODE is NOT defined, then you can do a simple cast:

LPCTSTR lp = (LPCTSTR) a;

however, if _UNICODE is defined, the you have to perform a conversion, using, for instance, MultiByteToWideChar function [^].
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.

RIL_Initialize returns S_FALSE

dishadiv10-Apr-07 23:12

dishadiv

10-Apr-07 23:12

RIL_Initialize is failing when trying to connect to a winmobile 5.0 smartphone device through USB.
this is the function which i used for initialization in my program

HRIL g_hNotiRil = NULL;
HRESULT hr;
hr = RIL_Initialize(1, NULL, NotifFromTheRIL, RIL_NOTIFY_CONNECT | RIL_NOTIFY_DISCONNECT, NULL, &g_hNotiRil);

it returns S_FALSE..
can somebody help..?

Thanx

Re: RIL_Initialize returns S_FALSE

Programm3r10-Apr-07 23:48

Programm3r

10-Apr-07 23:48

What does GetLastError() return ???

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: RIL_Initialize returns S_FALSE

dishadiv11-Apr-07 0:16

dishadiv

11-Apr-07 0:16

ERROR_PORT_ALREADY_OPEN is the error returned by GetLastError()

Re: RIL_Initialize returns S_FALSE

prasad_som11-Apr-07 0:05

prasad_som

11-Apr-07 0:05

dishadiv wrote:
it returns S_FALSE..

Its MSDN description states like ,
The proxy returns S_FALSE as an indication that the driver has not detected the radio presence yet.

Prasad
MS MVP - VC++

Re: RIL_Initialize returns S_FALSE

dishadiv11-Apr-07 0:15

dishadiv

11-Apr-07 0:15

Yes..i saw MSDN..i tried connecting the device to the port and then initializing..it didn't work..

Re: RIL_Initialize returns S_FALSE

dishadiv11-Apr-07 0:09

dishadiv

11-Apr-07 0:09

ERROR_PORT_ALREADY_OPEN is the error

CString problems from VC++ 6.0 to Visual Studio 2005

GDavy10-Apr-07 22:23

GDavy

10-Apr-07 22:23

This is probably a known problem with an easy workaround, but I haven`t seen it yet.
The problem is that I want to use code written in Visual C++ 6.0 in Visual Studio 2005. When I compile I get the following errors e.g.:

CString temp = pOrder->GetItemNr();<br />

pOrder->GetItemNr() returns a const char*

the error I got is:

error C2440: 'initializing' : cannot convert from 'const char *' to 'ATL::CStringT<basetype,stringtraits>'

What can I do so that this assignment works again? Anyone got any ideas?

Thanks for any help,

Davy

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