Re: Convert STL string --> TCHAR (clairification) - C / C++ / MFC Discussion Boards

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Timing diagram

RockyJames16-Apr-06 22:40

RockyJames

16-Apr-06 22:40

Hi,
Does any have idea of "Timing Diagram"..i want to implement it,pls help me out.

thanks in before
James rocky

Re: Timing diagram

David Crow17-Apr-06 3:38

David Crow

17-Apr-06 3:38

RockyJames wrote:
Does any have idea of "Timing Diagram"..

This could be most anything. Please elaborate.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

Convert STL string --> TCHAR (clairification)

chasetoys16-Apr-06 21:09

chasetoys

16-Apr-06 21:09

Hey sorry to repost, but no one seems to pay attention to posts that have some answers.

I am strying to take a STL string that I have and use it WIN32 API calls that require a LPTCSTR ( I think this is a const tstring). Anyways, I have tried the following header code, and it compiles, but I have no idea how to use the " typedef std::basic_string< TCHAR > tstring; " code... basically I want to do the following:

string stlStr;
LPTSTR sillyMicrosoftString = stringToLPTSTR(blah);

How can I make this work?

//header code in my file

#include <windows.h>
#include <stdio.h>
#define NULL 0
#include "LogFiles.h"
#include "TestPrint.h"
#include <string>
#include "TestPrint.h"
#include <iostream>
#include <conio.h>

typedef std::basic_string< TCHAR > tstring;

-- modified at 3:10 Monday 17th April, 2006

Re: Convert STL string --> TCHAR (clairification)

Hallery.Lai16-Apr-06 22:08

Hallery.Lai

16-Apr-06 22:08

you can convert string to "char *" first,then convert "char *" to LPTSTR.

Re: Convert STL string --> TCHAR (clairification)

chasetoys16-Apr-06 22:18

chasetoys

16-Apr-06 22:18

Could you show me an example please?

Thanks!

Re: Convert STL string --> TCHAR (clairification)

Hallery.Lai16-Apr-06 22:49

Hallery.Lai

16-Apr-06 22:49

string strA = "test string";
char *pTemp = (char *)strA.c_str();
TCHAR * s1=(TCHAR *)s;

Re: Convert STL string --> TCHAR (clairification)

chasetoys16-Apr-06 23:38

chasetoys

16-Apr-06 23:38

That doesn't work at all!

So I have the need to turn STL strings into LPTSTRs, and then take LPTSTRs back into strings...

Please help me solve this problem.

Thanks!

Re: Convert STL string --> TCHAR (clairification)

Michael Dunn17-Apr-06 8:09

Michael Dunn

17-Apr-06 8:09

See my C++ string guide: Part 1[^] Part 2[^]
Part 2 covers the various wrapper classes, but make sure you understand part 1 since that explains how encoding works.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

About draw a picture in dialog box

lisoft16-Apr-06 21:00

lisoft

16-Apr-06 21:00

I have a class that can draw picture in dialog box using the following code:

<br />
void CDialogbox::OnPaint()<br />
{<br />
	CPaintDC dc(this); // device context for painting<br />
	CRect m_rect;<br />
	GetWindowRect(m_rect);<br />
	//...<br />
	m_myclass.Draw(dc,m_rect); // Draw the image to dialog box<br />
		<br />
}<br />

These codes works fine as I just anticipated. But when I want to use memory DC for caching, it did not work:

<br />
void CDialogbox::OnPaint()<br />
{<br />
	CPaintDC dc(this); // device context for painting<br />
	CDC m_memdc;<br />
	m_memdc.CreateCompatibleDC(&dc); //Create a memory DC<br />
	CRect m_rect;<br />
	GetWindowRect(m_rect);<br />
	//...<br />
	m_myclass.Draw(dc,m_memdc); // First draw to memory DC<br />
	dc.BitBlt(m_rect.left,m_rect.right,m_rect.Width(),m_rect.Height(),&m_memdc,0,0,SRCCOPY); // Second copy from memory DC to Paint DC<br />
}<br />

Does anyone can help me? Confused | :confused:

Lisoft

Re: About draw a picture in dialog box

Le Thanh Cong16-Apr-06 22:59

Le Thanh Cong

16-Apr-06 22:59

m_myclass.Draw(dc,m_memdc); // First draw to memory DC???????????
Why parameter 2 is a DC

-----------------
conglt

Re: About draw a picture in dialog box

Nishad S16-Apr-06 23:27

Nishad S

16-Apr-06 23:27

The problem is you did not selected any bitmap to the memdc.
CreateCompatibleDC will create a dc with 1x1 pixel wide bitmap. So you have to create a bitmap also. See the example.

CPaint dc( this );
CDC dcMem;
dcMem.CreateCompatibleDC( &dc );
CBitmap bitmap;
bitmap.CreateCompatibleBitmap( &dc, width, height );
CBitmap* pOldBitmap = dcMem.SelectObject( &bitmap );
//
// Draw
//
dc.BitBlt( 0, 0, width, height, &dcMem, 0, 0, SRCCOPY );
dcMem.SelectObject( pOldBitmap );

GoodLuck!

- NS -

Re: About draw a picture in dialog box

lisoft17-Apr-06 17:34

lisoft

17-Apr-06 17:34

Thanks a lot, it works! Smile | :)

Lisoft

TAPI , COM

asdf175316-Apr-06 20:57

asdf1753

16-Apr-06 20:57

Dear Friends,
I try to work with TAPI3.0 that is COM based, so in create an COM object it returns "CoCreateInstance on TAPI failed"

<br />
	ITTAPI *TObj;<br />
	HRESULT hr;<br />
    hr = CoCreateInstance(<br />
                          CLSID_TAPI,<br />
                          NULL,<br />
                          CLSCTX_INPROC_SERVER,<br />
                          IID_ITTAPI,<br />
                          (LPVOID *)&TObj<br />
                         );<br />
    if ( FAILED(hr) )<br />
    {<br />
		MessageBox("CoCreateInstance on TAPI failed");<br />
    }<br />

is there any one help me ?

Re: TAPI , COM

YaronNir16-Apr-06 21:39

YaronNir

16-Apr-06 21:39

What is the hr result when CoCreateInstance Fails?
look the result in the error lookup.

hope this helps

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: TAPI , COM

asdf175316-Apr-06 23:07

asdf1753

16-Apr-06 23:07

it says in HRESULT "CoInitialize has not been called."

Re: TAPI , COM

YaronNir17-Apr-06 0:31

YaronNir

17-Apr-06 0:31

There ya go Smile | :)

in order to call CoCreateInstance, you need to load the COM libraries. this is done by
CoInitialize method (check out MSDN for more information)

don't forget to call CoUninitialize when done using the COM libraries

good luck

Yaron Sigh | :sigh:

Ask not what your application can do for you,
Ask what you can do for your application

Re: TAPI , COM

asdf175317-Apr-06 19:52

asdf1753

17-Apr-06 19:52

Dear Friend,
It is true i must do CoInitialize, i have forget it. Thank u Rose | [Rose]

OpenGl

sataoa16-Apr-06 20:57

sataoa

16-Apr-06 20:57

How to install OpenGl to VC++6.
What are various lib, bin, etc files required and
where i have put it in VC++ 6 .

-- modified at 3:02 Monday 17th April, 2006

Re: OpenGl

_AnsHUMAN_ 16-Apr-06 21:57

_AnsHUMAN_

16-Apr-06 21:57

Go to project settings>link and then search for the Object/Library Modules
Add the following entries to the end of the text box in the line
Opengl32.lib glaux.lib glu32.lib

Now in the file whereyou are using open gl functions,include the two files given underneath

#include "gl/gl.h"  <br />
#include "gl/glu.h"

Vision is Always important and so is your ATTITUDE.

Wishes.

Anshuman Dandekar

-- modified at 4:01 Monday 17th April, 2006

Re: OpenGl

Ganesh_T16-Apr-06 21:58

Ganesh_T

16-Apr-06 21:58

Check out this:
http://www.airport1.de/opengl.htm

Cheers
"Peace of mind through Technology"

Re: OpenGl

Le Thanh Cong16-Apr-06 22:23

Le Thanh Cong

16-Apr-06 22:23

nehe.gamedev.net, a site is very good for programming with OpenGL & VC++

-----------------
conglt

List Control with default text

parichaybp16-Apr-06 20:37

parichaybp

16-Apr-06 20:37

Hi,

I have created a List Control. I have to add the text by default by which the user can modify the text as required.

List control ID :- IDC_EXCLUDE_FILTERS_LIST
Type :- CListCtrl
Member :- m_EXCLUDE_FILTERS_LIST

I have to add the folowing text by default when the Dialog window loads.

*.exp *.ilk *.res *.trg *.tlh *.idb
*.pdb *.pch *.opt *.lib "*\Deleted
Items\*" *.cab *.mov *.mp3 *.swf
*.psp *.bmp *.chi *.chm *.com *.dll
*.exe *.gif *.hlp *.ivi *.ivt *.ix
*.jpeg *.jpg *.msi *.nl.mpeg *.mpg
*.ram *.rm

Can anyone please tell me how to add the default text to the list box & also user can edit the text and also remove the text..

I dnt know properly that i have to Edit Box or List box. but the text should be
multiple lines where the user can edit the text.

Regards,
Parichay.

Re: List Control with default text

keerthikaaa16-Apr-06 20:44

keerthikaaa

16-Apr-06 20:44

hai parichay

for this u can use combo box instead of list box or edit box where u can enter the list before and u can edit while runtime
Smile | :)

Re: List Control with default text

parichaybp16-Apr-06 20:48

parichaybp

16-Apr-06 20:48

Hi,

Thanks for the reply..

But in the Edit box , how to display the text in multiple line ???

Re: List Control with default text

keerthikaaa16-Apr-06 20:53

keerthikaaa

16-Apr-06 20:53

hai parichay

to display mutliple lines u can set the property of the edit box as follows
in the edit box properties->styles->mutliline checked

Smile | :)

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