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Re: Vectors in windows CE

7-Sep-03 7:24

You can use STLport in CE. Check these links:
http://www.pocketpcdn.com/libraries/stl.html
http://www.pocketpcdn.com/articles/stl.html
http://www.pocketpcdn.com/articles/print_stl.html

Regards,
João Paulo

Daniel Strigl7-Sep-03 20:24

Daniel Strigl

7-Sep-03 20:24

There are also some container classes inside the MFC (also in the CE version).
Just take a look at the following classes: CArray, CList, CTypedPtrArray, ...

I hope this will help you!

Daniel Wink | ;)

---------------------------
Never change a running system!

Re: Vectors in windows CE

SysLo7-Sep-03 20:29

SysLo

7-Sep-03 20:29

Thank you. These classes are just what I was looking for... Well they aren't vectors, but they're close enough Wink | ;)

.

STLPort also looked interesting, so thanks for the links concerning that too...

Unload a form

Mahesh Varma6-Sep-03 0:53

Mahesh Varma

6-Sep-03 0:53

Hi All,

How can i unload a form from memory in eVB. "Unload Me" is giving me error.

Mahesh

Odd behaviour inserting into Sql CE

freshthinking4-Sep-03 22:25

freshthinking

4-Sep-03 22:25

I have a relation called Correspondence of the following format:

corrId int identity(1, 1) primary key
type varchar(50)
cwith varchar(50)
isInternal smallint(2)
rowguid uniqueidentifier

the rowguid attribute was added by sql server when setting
up merge replication.

On the CE application I am trying to insert a row into the table and then pull the corrId back out using @@IDENTITY. Strangely when I try and insert I get the following error:

HR: 800040E2F
Native: 25016
Message: A duplicate value cannot be inserted into a
unique index [,,,,,]
Source: Microsoft SQL Server 2000 Windows CE Edition
Parameter 1: 0
Parameter 2: 0
Parameter 3: 0
Parameter 4:
Parameter 5:
Parameter 6:

I could understand the error if the corrId wasn't being incremented by 1 each time (& it didn't have the uniqueidentifier attribute). The question is what am I missing that's causing the problem?

Thanks in advance.

Re: Odd behaviour inserting into Sql CE

João Paulo Figueira4-Sep-03 22:39

Re: Odd behaviour inserting into Sql CE

4-Sep-03 22:39

Docs say:

"Ensure that a replication publication is configured to manage identity columns for a table(s) in the publication."

Is your publication correctly configured? By the way, what layer are you using to access the DB: ADO oe OLE DB?

Regards,
João Paulo

freshthinking4-Sep-03 22:49

freshthinking

4-Sep-03 22:49

If you mean did i let it use "Mark identity columns with the NOT FOR Replication" thing, i let enterprised manager sort it out. I have no problem inserting into other tables that have identity attributes, which is why i am finding this very odd behaviour.

I am using OLE DB. I haven't use Sql CE before and based my code on an example from the MSDN site, which used OLE DB. ACctually in the connection string for the SqlCeConnection object when i stated a 'Provider' initially it gave errors saying invalid token or something along those lines, so i removed it and specified the 'Data Source' only, and it works. I'm not entirely sure what it uses in that case. However def OLE DB for the replication.

Re: Odd behaviour inserting into Sql CE

freshthinking5-Sep-03 0:44

freshthinking

5-Sep-03 0:44

Coudln't work out what was causing it, so I changed the format of the table to remove the identity attreibute, all working now. thanks.

My program is not work in Pocket PC 2003!

David12153-Sep-03 17:01

David1215

3-Sep-03 17:01

Hello!
I have a program(it's write for me),it can work in the Pocket PC 2002,but when I change OS to Pocket PC 2003,the program is not work,I try to use eVC 4.0 and I install eVC SP2,Pocket PC 2003 SDK.But when I create a new project in eVC 4.0,I found I can not select cpu type to ARM,please help me,what can i do?
Thank's a lot.

(sorry,my english is not well,I wish you can understand my problem.)

Re: My program is not work in Pocket PC 2003!

João Paulo Figueira4-Sep-03 1:46

Re: My program is not work in Pocket PC 2003!

4-Sep-03 1:46

It is difficult to answer such a generic question. Can you please provide more information on the application you wrote?

Regards,
João Paulo

David12154-Sep-03 15:32

David1215

4-Sep-03 15:32

Dear Paulo:
sorry,I can't show the code to you,because it's our company's property.I have a question.How can I select cpu type for ARM in the eVC 4.0?

Thank's.

Best Regards.
David

Re: My program is not work in Pocket PC 2003!

Jonas Larsson4-Sep-03 20:34

Jonas Larsson

4-Sep-03 20:34

Build->Configurations, Add 2 new for wcearmv4 from the default relase/debug templates.

“Our solar system is Jupiter and a bunch of junk” - Charley Lineweaver 2002

Scriptinghost for NetCF ????

carsonB3-Sep-03 2:53

carsonB

3-Sep-03 2:53

Hi, is it possible to create an app for use on pocketpc with the compact framework that can execute c#-code just like an scriptinghost.
would be nice to learn c# on the pda.

Carsten Bath

Database connection with pocket pc emulator

shoukat rasool1-Sep-03 11:33

shoukat rasool

1-Sep-03 11:33

i have no real time device for database connection .i want to develop a database application which can made insertion daeletion updation of records in my database.plz help me for this prob.thanks

Phone call (TAPI) with PPC

Member 55831131-Aug-03 13:01

Member 558311

31-Aug-03 13:01

Hi all!

I would like to make my PPC application able to make and receive phone calls. But unfortunately im new to TAPI, and dont know where to start.

I read the MSDN about it, and i checked out the CEDialer example, but it doesnt work... I'm using eVC++, Siemens SX45 (Pocket PC 2000).

Can anybody tell me, how to start, or the location of a tutorial, or a working sample code (that would be the best)!

It is fit, if i could send datas (phone number and command) to Pocket Dialer, and it would do the rest (make calls, receive calls) if it is possible.

Thanks in advance!

Best regards:
Shane99

Re: Phone call (TAPI) with PPC

Member 5583112-Sep-03 6:42

Member 558311

2-Sep-03 6:42

Hi again!

I got CeDialer to work, but now i can do only data calls, with no voice. It only beeps when i pick up the called party's receiver.

I suppose its becouse the line 1122.:

lpCallParams->dwMediaMode = LINEMEDIAMODE_DATAMODEM;

what should be

lpCallParams->dwMediaMode = LINEMEDIAMODE_INTERACTIVEVOICE;

But if i set to interactivevoice, than the lineMakeCall gives an error.

What is wrong?

Thanks in advance:
Shane99

precalculating button control size issue

rodent¹28-Aug-03 4:43

28-Aug-03 4:43

using ppc2k2 with just wince api, i'm trying to determine the size required by a button control based on it's text. my understanding is that by default 8pt tahoma bold font is used for the button text.

in order to determine the minimum button size, my plan is to use DrawText() to return the RECT structure of the text based upon the 8pt tahoma bold font in the DC.

however, when i use the following code, i have to add padding to the RECT in order for the button to not be too small.

what am i not understanding about correctly measuring the size of text in the DC used by the button control?

thanks...

<br />
HWND hChildWnd;			// handle to push button<br />
RECT cliRect, txtRect;		// RECT size of main window client area & btn text<br />
HDC hdc;			// handle to client DC<br />
HFONT hBtnFnt, hOldFnt;		// handle to fonts<br />
LOGFONT lf;			// pointer to LOGFONT structure<br />
<br />
// get size of main window's client area<br />
GetClientRect(hWnd, &cliRect);<br />
<br />
// zero structures<br />
memset(&txtRect, 0, sizeof(RECT));<br />
memset(&lf, 0, sizeof(LOGFONT));<br />
<br />
// get client area DC<br />
hdc = GetDC(hWnd);<br />
<br />
// set up LOGFONT for an 8 pt bold Tahoma font, the font used<br />
// for the button text<br />
lf.lfHeight = -8 * GetDeviceCaps(hdc, LOGPIXELSY)/72;<br />
lf.lfWeight = FW_BOLD;<br />
lf.lfPitchAndFamily = VARIABLE_PITCH | FF_SWISS;<br />
_tcscpy(lf.lfFaceName, _T("Tahoma"));<br />
<br />
// create new font based on LOGFONT member data<br />
hBtnFnt = CreateFontIndirect(&lf);<br />
<br />
// select new font into DC, save old font, and calculate button text<br />
// and return it in RECT structure.<br />
hOldFnt = (HFONT)SelectObject(hdc, hBtnFnt);<br />
DrawText(hdc, szBtnTxt, -1, &txtRect, DT_CALCRECT);<br />
<br />
// select old font back into DC, delete new font and release DC<br />
SelectObject(hdc, hOldFnt);<br />
DeleteObject(hBtnFnt);<br />
ReleaseDC(hWnd, hdc);<br />
<br />
// add padding to text size<br />
// SHOULDN'T HAVE TO ADD THIS MUCH PADDING IF SIZING IS CORRECT<br />
// FIND OUT WHY I DONT UNDERSTAND HOW TO GET CORRECT TEXT SIZE<br />
txtRect.bottom += 6;<br />
txtRect.right += 30;<br />
	<br />
// create a centered pushbutton<br />
hChildWnd = CreateWindowEx(NULL, _T("BUTTON"), szBtnTxt,<br />
			WS_VISIBLE | WS_CHILD | BS_CENTER | BS_VCENTER | BS_PUSHBUTTON,<br />
			(cliRect.right/2 - txtRect.right/2) , cliRect.bottom - 25,<br />
			txtRect.right, txtRect.bottom,<br />
			hWnd, (HMENU)IDC_PROPBTN, g_hInst, NULL);

João Paulo Figueira28-Aug-03 6:07

28-Aug-03 6:07

I can't read your code, but I would say that you have a wrong assumption:

rodent¹ wrote:
my understanding is that by default 8pt tahoma bold font is used for the button text.

It is not, unless you tell it to. By default you get the system font that is larger than Tahoma 8.

Regards,
João Paulo

rodent¹28-Aug-03 6:19

28-Aug-03 6:19

thanks...my assumption was based on the sdk doc's concerning the ui services which show tahoma bold 8pt used as the button text...i'll play with my code to see if using the system font gives better results as you suggest.

rodent¹28-Aug-03 9:10

28-Aug-03 9:10

thanks for the info joão paulo...after the liberal use of the following code snippet, i discovered a few interesting points re: wince fonts..

1) the SYSTEM_FONT on my ppc2k2 sdk emulator and on my dell axim x5 is tahoma. the system font's LOGFONT lfHeight member was -12 while tmHeight, tmInternalLeading, tmDescent, and tmExternalLeading (from the system font's TEXTMETRIC struct) were 14, 2, 2, and 0 respectively.

2) to properly calculate the RECT size of the text used in my button control using the system font, i had to set lfHeight to 9 (??) in my first post's code snippet

<br />
hTmpFnt = (HFONT)GetStockObject(SYSTEM_FONT);<br />
GetObject(hTmpFnt, sizeof(LOGFONT), &lf);<br />
GetTextMetrics(hdc, &tm);<br />
	<br />
wsprintf(szOut, _T("LOGFONT:\nFace: %s, h: %li\n\nTEXTMETRIC:\nh: %li, il: %li, d: %li, el: %li"),<br />
        lf.lfFaceName, lf.lfHeight, tm.tmHeight, tm.tmInternalLeading, tm.tmDescent, tm.tmExternalLeading);<br />
MessageBox(hWnd, szOut, _T("Sys Font Info"), MB_OK);

João Paulo Figueira28-Aug-03 12:03

28-Aug-03 12:03

rodent¹ wrote:
the SYSTEM_FONT on my ppc2k2 sdk emulator and on my dell axim x5 is tahoma

You are luckier than me. My iPAQ 3850 gives me something other than Tahoma 8. But I believe that you can change this using a registry setting. Maybe Dell did that for you...

Regards,
João Paulo

rodent¹28-Aug-03 12:43