C / C++ / MFC Discussion Boards

The NULL Developer3-Oct-05 20:59

3-Oct-05 20:59

Alright, I got the solution.

I was being stupid...now dont ask me more...

"Do first things first, and second things not at all."
— Peter Drucker.

Re: Using GDI+ in View

Prakash Nadar3-Oct-05 22:55

Prakash Nadar

3-Oct-05 22:55

It would be nice if you post the solution too. I Suspect the constant string that you provided to the funtion, not sure if thats rite.

-prakash

Re: Using GDI+ in View

The NULL Developer3-Oct-05 23:20

The NULL Developer

3-Oct-05 23:20

Well..if you say so...

I was wrongly calling GdiplusShutdown(m_gdiplusToken) here:

BOOL CMyApp::InitInstance()
{
...

// The one and only window has been initialized, so show and update it
	m_pMainWnd->ShowWindow(SW_SHOW);
	m_pMainWnd->UpdateWindow();
	// call DragAcceptFiles only if there's a suffix
	//  In an SDI app, this should occur after ProcessShellCommand
	GdiplusShutdown(m_gdiplusToken);

	return TRUE;
}

instead of here:

int CMyApp::ExitInstance()
{
	// TODO: Add your specialized code here and/or call the base class
	GdiplusShutdown(m_gdiplusToken);

	return CWinApp::ExitInstance();
}

"Do first things first, and second things not at all."
— Peter Drucker.

Accessing the Store procedure in c++

Anonymous3-Oct-05 17:15

Anonymous

3-Oct-05 17:15

Hi,
I want to access sql store procedure.It has 3 input parameter and 8 output parameters. store procedure also retun the result set. Can you please give me reference of sample code to access store procedure. I am totally new to DB.

Thanks

Pocket PC emulator

fjlv20053-Oct-05 15:58

fjlv2005

3-Oct-05 15:58

Good day,

Im posting this up here bec. there is not much interaction on Embedded/Mobile section but here on Visual C++ a lot of good people come.

Anyway,I'm using Embedded Visual C++ 3.0 on my development. I'am given so LITTLE TIME to do my task, so I'm planning to bring my task at home. Unfurtunately my pc at home is stand-along(doesnt have network -thou I have network card but can't afford yet to have an internet con.). I wanted to run the emulator(Pocket PC 2002) at home but the protocol used is TCP/IP. My Emulator cant connect to the Platform manager do I cant transfer files and debug my program. I've search here in the office on how to connect emulator with active sync (see site below).
.(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/devguidesp/html/sp_intro_to_the_ce_emulator_zjht.asp)
However, I dont have that null modem cable nor serial cable at home. Can anybody help me how I could communicate my emulator with EVC3.0? Cry | :((

Any suggestion would be a great Help.

Thanks

Re: Pocket PC emulator

Ghasrfakhri3-Oct-05 21:12

Ghasrfakhri

3-Oct-05 21:12

I have no experience in Mobile programming, but if you need network connection you can install Microsoft Loopback driver.
it work like a NIC.

Iman Ghasrfakhri

Re: Pocket PC emulator

fjlv20054-Oct-05 15:29

fjlv2005

4-Oct-05 15:29

Good day,

I have tried to install MS Loopback and yes I do have network connection, however, when I ran the emulator, EVC3 emulator platform manager could not connect.
Anyway thanks Iman, I've learn something.

have a nice day.

Simplifying debug traces in the Output window

srev3-Oct-05 14:07

srev

3-Oct-05 14:07

Hi,

I know it's bad practice to disable warnings but I'm fighting my way through lines and lines of irrelevant information in the Output window to find my TRACE output.

Is it possible to temporarily switch off DLL loading messages such as:
'XYZ.exe': Loaded 'C:\WINDOWS\system32\abcdefg.dll', No symbols loaded.

Thanks,

Simon

Re: Simplifying debug traces in the Output window

David Crow4-Oct-05 3:18

David Crow

4-Oct-05 3:18

I preface my debug statements with asterisks, something like:

***** This is my debug message

That way it stands out above all the other noise.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

ActiveX and NM_CUSTOMDRAW

levaey3-Oct-05 12:50

levaey

3-Oct-05 12:50

I have an ATL Composite Control (DLL) that that includes my own control (CMySlider) derived from CSliderCtrl.

Here is the message map of this control.
BEGIN_MESSAGE_MAP(CMySlider, CSliderCtrl)
//{{AFX_MSG_MAP(CPlayerSlider)
ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomdraw)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

When Composite Control is embedded in the Dialog or FormView, CMyControl receives notification, OnCustomdraw gets called and everything draws/works perfectly.

The problem is that when the Composite Control is embedded in HTML page, I’m not receiving notification at all and instead of custom slider I’m getting the standard windows control.
Does anybody know what should I do to make it work on the web page?
Any help would be greatly appreciated.

Thanks,
Lev

Re: ActiveX and NM_CUSTOMDRAW

Anonymous3-Oct-05 13:52

Anonymous

3-Oct-05 13:52

I am sorry ,I use c++ 2years, but i donot know this code
can you tell me
my email is yujian6044@163.com
my name is jerry

BEGIN_MESSAGE_MAP(CMySlider, CSliderCtrl)
//{{AFX_MSG_MAP(CPlayerSlider)
ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomdraw)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

Re: ActiveX and NM_CUSTOMDRAW

levaey5-Oct-05 7:55

levaey

5-Oct-05 7:55

There are a lot of samples with ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomdraw)on this site. Do a search and ypu find a lot of references.

Re: ActiveX and NM_CUSTOMDRAW

lroels7-May-09 4:07

lroels

7-May-09 4:07

I seem to have the same problem, have you found a solution for this one?

Convert unsigned 16 bit Word

simonpearson3-Oct-05 12:50

simonpearson

3-Oct-05 12:50

Hello all,

This is my first post to this forum, so apologies in advance for the lack of clarity.

Im trying to assign an unsigned 16 bit word to a char array i.e. two 8 bit single bytes.

my value (u16 sum) contains the word value 24fa which I need to insert into the middle of a char array buff[100]. Obviously, I am concious of the fact that the array is of type char (8 bit), thus any allocation will shorten the original value e.g. buff[0] = sum //buff[0] only contains 0x24

Is there any way to change the word value to two 8 bit singular bytes for storage?

Or is there another way via strcat/memcpy etc..etc

Many thanks in advance.

Stu

Re: Convert unsigned 16 bit Word

Fired Fish3-Oct-05 13:56

Fired Fish

3-Oct-05 13:56

oh me too .I can not know use this forum
my english is poor
haha

I

Re: Convert unsigned 16 bit Word

Prakash Nadar3-Oct-05 22:18

Prakash Nadar

3-Oct-05 22:18

fisheryj wrote:
haha

So you find it funny if your english is poor?

-prakash

Re: Convert unsigned 16 bit Word

C^hris L^osinger3-Oct-05 14:00

C^hris L^osinger

3-Oct-05 14:00

simonpearson wrote:
Is there any way to change the word value to two 8 bit singular bytes for storage

BYTE b1 = value & 0xff;
BYTE b2 = (value >> 8);

or

WORD *pw = &value;
BYTE *pb = (BYTE *)pw;
// now, pb[0] is the first byte of your WORD and pb[1] is the second

etc..

Cleek | Image Toolkits | Thumbnail maker

Re: Convert unsigned 16 bit Word

Rick York3-Oct-05 16:34

Rick York

3-Oct-05 16:34

You can use a union. This union can be used to extract the individual bytes of most of the primitive data types. You can add more types as needed.

typedef union
{
	double	Double;
	float	Float;
	UINT	Int;
	USHORT	Short;
	UCHAR	Bytes[sizeof(double)];
} UnionBytes;


UnionBytes ub;
ub.Short = your_short;
your_string[x] = wb.Bytes[0];    // first byte
your_string[x+1] = wb.Bytes[1];  // second byte

I know you didn't ask this but you can do something similar to access the bits of a byte :

typedef union
{
	UCHAR  Byte;
	struct
	{
		unsigned Bit0 : 1;
		unsigned Bit1 : 1;
		unsigned Bit2 : 1;
		unsigned Bit3 : 1;
		unsigned Bit4 : 1;
		unsigned Bit5 : 1;
		unsigned Bit6 : 1;
		unsigned Bit7 : 1;
	} Bits;
} ByteBits

Reading and writing some data from an Excel file

zohresaeed3-Oct-05 12:48

zohresaeed

3-Oct-05 12:48

Hi I have a very big problem, if you know the answer please please help me.
I have a .Xls file that it has just one column data ( in the type of float). I have to read these data from Xls file and put them on an Array to use in my program, and after some working, I have to write them to an Xls file(different from the first one). It should be as a function().
I`ll really appreciate for your quick replies.

This is my email: z_eftekhari@yahoo.com

Re: Reading and writing some data from an Excel file

Simon Yan3-Oct-05 18:14

Simon Yan

3-Oct-05 18:14

Em, try type some key word of your problem on google.
Possiblely you'll find your answer.

that's what i do most of the time.

Re: Reading and writing some data from an Excel file

Lane Yu3-Oct-05 19:02

Lane Yu

3-Oct-05 19:02

The following VB code is FYI, you must change it to VC

////////////////////////////////////////////////////////////////

Public Function SheetToArray(strFilename As String, intSheetIndex As Integer, intRows As Integer, intColums As Integer, strArray() As String) As Boolean

'Declare objects

Dim excapp As Excel.Application

Dim excbook As Excel.Workbook

Dim excsheet As Excel.Worksheet

ReDim strArray(1 To intRows, 1 To intColums)

Dim intLoopR As Integer
Dim intLoopC As Integer

'Create objects

Set excapp = CreateObject("Excel.application")

Set excbook = excapp.Workbooks.Open(strFilename)

Set excsheet = excbook.Worksheets(intSheetIndex)

'Read the table and fill the array

For intLoopR = 1 To intRows

For intLoopC = 1 To intColums

strArray(intLoopR, intLoopC) = excsheet.Cells(intLoopR, intLoopC)
'excsheet.Range(excsheet.Cells(1, 1), excsheet.Cells(5, 5)).Select

Next intLoopC

Next intLoopR

'Close Excel

excbook.Close
excapp.Quit

'Clear the objects

Set excapp = Nothing

Set excbook = Nothing

Set excsheet = Nothing

SheetToArray = True

Exit Function

End Function

Lane
China

Re: Reading and writing some data from an Excel file

David Crow4-Oct-05 3:22

David Crow

4-Oct-05 3:22

I know of two ways. The first is to use Excel's ODBC driver. The second is to use Excel Automation. In my opinion, the ODBC method would be easier for what you are doing.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

launching Dev manager

act_x3-Oct-05 12:26

act_x

3-Oct-05 12:26

In my Vc++ dialog application , i need to launch the device manager . Is Createprocess the proper way to launch it or is there an alternative ?

Engineering is the effort !

Re: launching Dev manager

Prakash Nadar3-Oct-05 15:11

Prakash Nadar

3-Oct-05 15:11

you are trying to start a control panel applet i.e. a .cpl file.

I do not know (forgot) how to launch a .cpl file but you should find few expamples here or on the net on how to launch any .cpl file.

you can google it as Here[^]

-prakash

Re: launching Dev manager

David Crow4-Oct-05 3:31

David Crow

4-Oct-05 3:31

Why not use

rundll32.exe devmgr.dll DeviceManager_Execute

with CreateProcess()?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

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