BlueTooth communication - C / C++ / MFC Discussion Boards

Timothy Grabrian6-Sep-04 8:21

6-Sep-04 8:21

I've been working on a Phone Book program for a few days and have hit a snag on the graphical part.

I wanted 5 buttons with bitmaps (for home, mobile, work, ect) with text, to do that I would have to make them ownerdrawn, I did'nt want to go through the hastle of that.

I decided to make the buttons bitmaps, then when the mouse is over them change the styles to text to show the text.

I got that working fine but when you click the buttons (actually check buttons) they stay in there current state! When you mouse over the other buttons then come back to the one you just checked it works fine!

Here is the link to a zip with the source+workspace/exe http://www.kruncherinc.com/PhBk.zip

Please, any ideas?

wWw.KruncherInc.cOm

Re: Help

Jon Hulatt6-Sep-04 10:34

Jon Hulatt

6-Sep-04 10:34

Are you Invalidate()ing the window of the button who's state changes? The window will only redraw itself in response to a WM_PAINT message- perhaps the action of moving the mouse is triggering this.

There are loads of graphic/bitmap button classes here on codeproject that would probably suit your needs. Yes, you'll need to apply BS_OWNERDRAW to a button for it to appear properly, but these classes will handle all of the details for you.

jon

using System.Beer;

AddFontResource + pfm && pfb

globus0006-Sep-04 5:02

globus000

6-Sep-04 5:02

Hi I'm facing the following problem using AddFontResource function.
I've got Type1 fonts' files embedded in my programs resources. And I want make them(fonts) automatically install on programm startup and remove on programs shutdown. I'm doing the following:
1) extracting binary data from resources and saving them in temporary files
2) trying to add them by calling

AddFontResource("c:\\windows\\temp\\DIN-Bold.pfm | c:\\windows\\temp\\DIN-Bold.pfb");

But this function always returns 0.
The same procedure works well for single-file ttf fonts.
Could anybody help me to find out why it doesnt install pfm+pfb fonts.
I'll be glad to get any help from you.

Re: AddFontResource + pfm && pfb

Mike Dimmick6-Sep-04 13:01

Mike Dimmick

6-Sep-04 13:01

I reckon there's a defect in MSDN - there should be no spaces surrounding the | character, i.e.

AddFontResource("c:\\windows\\temp\\DIN-Bold.pfm|c:\\windows\\temp\\DIN-Bold.pfb");

You might have more luck with that.

Untested, but there are some examples on Google's groups archive.

Stability. What an interesting concept. -- Chris Maunder

Library: converting to/from UTF-x

peterchen6-Sep-04 4:34

peterchen

6-Sep-04 4:34

I'm looking for a library that can convert ASCII, Multibyte and WideChar strings to and from different UTF encodings

- at least UTF-8 and UTF-16
- free (preferrably with source)
- fast

Any sources?

we are here to help each other get through this thing, whatever it is Vonnegut jr.

sighist || Agile Programming | doxygen

Re: Library: converting to/from UTF-x

DrusTheAxe6-Sep-04 4:55

DrusTheAxe

6-Sep-04 4:55

http://www.unicode.org/Public/PROGRAMS/CVTUTF/
From Unicode.org themselves

Handles UTF-8, UTF-16 and UTF-32.
There's also some UTF-7 code up there, if you care.

You can also use MultiByteToWideChar() and vice versa to do UTF8 and UTF16 conversions. See MS docs for the constants.

Re: Library: converting to/from UTF-x

peterchen6-Sep-04 7:23

peterchen

6-Sep-04 7:23

thanks, that's a good start.

we are here to help each other get through this thing, whatever it is Vonnegut jr.

sighist || Agile Programming | doxygen

BlueTooth communication

eli150219796-Sep-04 4:31

eli15021979

6-Sep-04 4:31

hi,
i'm tring to set up BlueTooth communication between 2 PDA's.
in my client side,i wrote this part of code:

WSAQUERYSET Wsaq;
ZeroMemory(&Wsaq,sizeof(Wsaq));
Wsaq.dwSize = sizeof(Wsaq);
Wsaq.dwNameSpace = NS_BTH;
Wsaq.lpcsaBuffer = NULL;
if(WSALookupServiceBegin(&Wsaq,LUP_RETURN_ALL ,&hlookup) == SOCKET_ERROR)
{
ErrorValue = WSAGetLastError();
ErrorString.Format(_T("%d"),ErrorValue);
AfxMessageBox(TEXT("WSALookupServiceBegin() Error
Number ")+ ErrorString);
return;
}
.
.
.

also,in my header file there is #include<winsock2.h> & i've imported ws2.lib,
but i always gets this error:

BTexampleDlg.obj : error LNK2019: unresolved external symbol "int __cdecl
WSALookupServiceBeginW(struct _WSAQuerySetW *,unsigned long,void * *)"
(?WSALookupServiceBeginW@@YAHPAU_WSAQuerySetW@@KPAPAX@Z) referenced in
function "protected: void __cdecl CBTexampleDlg::Onstart(void)" (?
Onstart@CBTexampleDlg@@IAAXXZ)
ARMV4Rel/BTexample.exe : fatal error LNK1120: 1 unresolved externals

(i've got the same error with WSALookupServiceNext() function and
WSALookupServiceEnd() function).

can someone please help me?
my email is : Eliv@Roadeye.co.il

thanks,eli.

Re: BlueTooth communication

Trollslayer6-Sep-04 5:11

Trollslayer

6-Sep-04 5:11

Wouldn't this be better in the Wireless/Embedded forum[^] ?

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Re: BlueTooth communication

Ryan Binns6-Sep-04 18:43

Ryan Binns

6-Sep-04 18:43

Have you imported "ws2_32.lib" ?

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

CEdit question

0v3rloader6-Sep-04 4:08

0v3rloader

6-Sep-04 4:08

Hello,

I would like to know whether it is possible to listen to a specific EM_/EN_ message from CEdit informing the caret has been moved to a different position? Is there such a message? Or do I have to listen to the OnChar event and from there call GetSel(...,...) to know the caret position?

All comments are very appreciated,

David

accessing Windows Files ..

Sudhakar Pasupunuri6-Sep-04 3:58

Sudhakar Pasupunuri

6-Sep-04 3:58

Hi..

I have created some directories and sub directories using the Unicode function "CreatedirectoryW()" as the full path exceeds 260 chars..and it was succesful from the code point of view..

Though I created these when i decided to access them from windows I couldn't do so..It is throwing an error that "can't access this folder.Path is too long"..

If this is the case what is the purpose of Using Unicode function to create directories which exceeds 260 chars limit??

Is there anyway we can access these files???

Thanks
Sudhakar

Re: accessing Windows Files ..

Ryan Binns6-Sep-04 19:04

Ryan Binns

6-Sep-04 19:04

Sudhakar Pasupunuri wrote:
If this is the case what is the purpose of Using Unicode function to create directories which exceeds 260 chars limit??

Is there anyway we can access these files???

You can access paths over 260 characters by adding "\\.\" to the beginning of the filename. Remember to escape the backslash.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: accessing Windows Files ..

Sudhakar Pasupunuri6-Sep-04 19:32

Sudhakar Pasupunuri

6-Sep-04 19:32

Thanks for the valuable info But my question here is :

I want to acceess these files from windows explorer and not through code..

The end user want to open the file and want to see the contents using windows explorer..But then windows throws error that "cann't access the folder/file path is too long "..

Plz help me out in this..

Thanks
Sudhakar

Re: accessing Windows Files ..

Ryan Binns6-Sep-04 20:39

Ryan Binns

6-Sep-04 20:39

Sudhakar Pasupunuri wrote:
I want to acceess these files from windows explorer and not through code..

The end user want to open the file and want to see the contents using windows explorer..But then windows throws error that "cann't access the folder/file path is too long "..

Oh, well in that case there's absolutely nothing you can do about it. It is a limitation of Windows explorer. If you want them to be able to access it, you'll have to make the path names shorter.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Help

verma-rahul6-Sep-04 3:55

verma-rahul

6-Sep-04 3:55

I am looking to develop an application which prevents a CD to be coppied.Once it is installed should genrated a unique number through its BAIOS that it cant be duplicated.
THX

Re: Help

Christian Graus6-Sep-04 12:20

Christian Graus

6-Sep-04 12:20

What's a BAIOS ?

Christian

I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

How to hide the "index" pane of the help widow using HtmlHelp?

YunYan6-Sep-04 3:17

YunYan

6-Sep-04 3:17

Hi All,
I want to hide the left pane(index, search,context) of the help widow using function HtmlHelp., but i don't know what's the parameters for HtmlHelp(...) .Is there any other things i should do for it?

Thanks!

YunYan

static function

Dev5786-Sep-04 3:15

Dev578

6-Sep-04 3:15

I have a static function inside a class. It is actually a seperate thread, so it has to be static. Is there a way that I can access normal members of the class from the static thread funcion? Any help is appreciated.

-Dev578

Re: static function

Joaquín M López Muñoz6-Sep-04 4:22

Joaquín M López Muñoz

6-Sep-04 4:22

This has to be about number #1 question asked here at the C++ forum. Mike Dunn's explains it in detail in his Visual C++ FAQ[^], item 6.1. HTH

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Finding a Directory

si_696-Sep-04 2:46

si_69

6-Sep-04 2:46

Hi All

does any know how i can find if a directory is present or not

so i pass in the directory name

i.e. "C:\MyDir"

and then return a true or false

im using MFC

i tried using

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/reference/ifaces/icurrentworkingdirectory/GetDirectory.asp[^]

but it doesnt complile and get the error

error C3861: 'GetDirectory': identifier not found, even with argument-dependent lookup

ne1 any ideas ??

Re: Finding a Directory

Arsalan Malik6-Sep-04 3:03

Arsalan Malik

6-Sep-04 3:03

You should use FindFirstFile and FindNextFile, and check returned WIN32_FIND_DATA structure for FILE_ATTRIBUTE_DIRECTORY attribute. The other function to get current directory, is GetCurrentDirectory not GetDirectory.

Arsalan Malik

Re: Finding a Directory

Timothy Grabrian6-Sep-04 8:28

Timothy Grabrian

6-Sep-04 8:28

BOOL DirectoryExists(LPSTR Dir)
{
	if(GetFileAttributes(Dir) == (DWORD)-1)
	{
		if(GetLastError() == ERROR_FILE_NOT_FOUND)
			return FALSE;
		else
			return TRUE;
	}
}

wWw.KruncherInc.cOm

Re: Finding a Directory

gamitech6-Sep-04 10:04

gamitech

6-Sep-04 10:04

GetFileAttributes

gabby

Re: Finding a Directory

David Crow7-Sep-04 3:07

David Crow

7-Sep-04 3:07

You can also use _access() as in:

if (_access("c:\\MyDir", 0) == 0)
    ; // exists
else
    ; // does not

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

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