C / C++ / MFC

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2.5 I added some source files I got from someone else into my project and the compiler gives the error "C1010: unexpected end of file while looking for precompiled header directive." Why?[^]

25-Apr-06 8:16

move the #include "stdafx.h" statements in every .cpp files of your project at the top of the other includes...

Re: Help plz

Michael Dunn25-Apr-06 8:31

Michael Dunn

25-Apr-06 8:31

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

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

Array's again

#hackC++25-Apr-06 7:35

25-Apr-06 7:35

What I was wondering is when i put.

const size_t array = 3;
int ca[array] = {0,1,2};

cout << ca << endl;

The program prints 0x75dfc0 (or something like that, I'm just guessing)
that output tells me nothing. Is it the memory address or what.

it all seems a little confusing.

toxcct25-Apr-06 7:46

25-Apr-06 7:46

#hackC++ wrote:
const size_t array = 3;
int ca[array];

1. you cannot do this. you must use either macros or dynamic memory allocation.

#hackC++ wrote:
cout << ca << endl;

this prints ca which is a pointer to the first int which compounds the array, so what you get is actually the address at which the array has been allocated...
if you want to print each elements in the array, iterate over it.

#hackC++25-Apr-06 7:50

25-Apr-06 7:50

Would it be easier to use vectors in most cases?

toxcct25-Apr-06 7:52

25-Apr-06 7:52

#hackC++ wrote:
Would it be easier to use vectors in most cases?

depends what you need to do with it.

if you need an array which size need to change often, then yes, vector is certainly a good choice.

please explain what you want to do with that array if you want me to advise you better.

Maxwell Chen25-Apr-06 7:51

Maxwell Chen

25-Apr-06 7:51

#hackC++ wrote:
const size_t array = 3;
int ca[array];

v2.0 wrote:
1. you cannot do this. you must use either macros or dynamic memory allocation.

Yes we can, because it is const.
At least my GCC compiles this code.

Maxwell Chen

Roland Pibinger25-Apr-06 7:53

Roland Pibinger

25-Apr-06 7:53

v2.0 wrote:
#hackC++ wrote:
const size_t array = 3;
int ca[array];
1. you cannot do this.

You can in C++ (not in C).

v2.0 wrote:
#hackC++ wrote:
cout << ca << endl;
this prints ca which is a pointer to the first int which compounds the array, so what you get is actually the address at which the array has been allocated...
if you want to print each elements in the array, iterate over it.

'iterate' means a for-loop Wink | ;)

toxcct25-Apr-06 7:56

25-Apr-06 7:56

Roland Pibinger wrote:
'iterate' means a for-loop

iterate means "go thru each element" by the way you like (for, do or while loop can do the job)...

Kharfax25-Apr-06 7:48

Kharfax

25-Apr-06 7:48

mate you need an ebook about C or a tutorial about c arrays
Search in google and read it

toxcct25-Apr-06 7:56

25-Apr-06 7:56

i quite agree with that Wink | ;)

#hackC++25-Apr-06 7:57

25-Apr-06 7:57

Well i'm currently reading C++ Primer 4th Edition by Stanley Lippman.

just got done reading about vectors and went into arrays which is confusing me to say the least.

The complier I'm using is Bloodshed Dev C++. By the way, whats the best software for C++.

i'm guessing Visual Basic C++ 2003 but i could be wrong.

-- modified at 14:00 Tuesday 25th April, 2006

toxcct25-Apr-06 8:14

25-Apr-06 8:14

#hackC++ wrote:
Well i'm currently reading C++ Primer 4th Edition by Stanley Lippman.

when you get stronger C++ programmer, i advise you to read The C++ Language by Bjarne Stroustrup (the C++ Creator).

#hackC++ wrote:
By the way, whats the best software for C++.

i'm not sure about what you're saying here, but if you ask for an IDE, then i think most people here will tell you that Microsoft Visual C++ 2003/2005 worth it (because Codeproject is dedicated to microsoft technologies). you can get Visual Studio 2005 Express edition for free on MS web site.

David Crow25-Apr-06 8:42

David Crow

25-Apr-06 8:42

#hackC++ wrote:
just got done reading about vectors and went into arrays which is confusing me to say the least.

Technically, a vector is a one-dimensional array. Things get confusing because C++ has a vector type.

#hackC++ wrote:
By the way, whats the best software for C++.

It depends on what you use to measure with. One person might like it for features A, B, and C, while the next person hates those features but likes X, Y, and Z instead.

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

"We will be known forever by the tracks we leave." - Native American Proverb

Capturing Registry Key name,value,Status

Michael Dunn25-Apr-06 8:33

Michael Dunn

25-Apr-06 8:33

You can't output a whole array like that. What's happening is an implicit conversion from int[] to int*, and you're seeing the value of that pointer (the address of array[0])

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

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

kiranin25-Apr-06 7:32

kiranin

25-Apr-06 7:32

i Used RegNotifyChangeKeyValue for monitoring the changes all subkeys in the one of the selected Root Key(For Ex.HKEY_CLASSES_ROOT) .
But Am not getting how i can capture the changed registry key name,value,status(created/modified/deleted).
Can Any one tell about this...............
Kiran.V

-- modified at 13:32 Tuesday 25th April, 2006

regular MFC DLL with OCX control does not show dialog

alferx125-Apr-06 7:02

alferx1

25-Apr-06 7:02

Hello to all

I developed a DLL, to which I added a control to him OCX, but the dialog box called from dll function still does not show

Helpme

Thank

alferx

Re: regular MFC DLL with OCX control does not show dialog

alferx125-Apr-06 7:09

alferx1

25-Apr-06 7:09

Is in VC++ 6.0

Painting bad issues (GDI)

Rafael Fernández López25-Apr-06 6:47

Rafael Fernández López

25-Apr-06 6:47

Hi,

If you can download the project, and help me in some way... is only a class and its goal es mainly:

* To have an image at the back (alphablended with AlphaBlend function), and if the window receive ScrollWindow() messages, to don't move.

It work all right, but if I've some controls on it, they will be drawn on the alphablended image, so if you move the window, later it will be visible.

Just open the zip, compile it (I've Visual Studio .NET 2003), and press "ACCEPT" to load the alphablended image, and you must press "CANCEL" several times to make the window scroll.

I'm new to GDI, and maybe there are lots of things very bad. I will appreciate a lot your comments, to learn more.

Here you can download the file !!

THANK YOU VERY MUCH !!!

Written by: Rafael Fernández López.

Visit: http://www.maestroprogramador.com

SOLVED

Rafael Fernández López25-Apr-06 8:30

Rafael Fernández López

25-Apr-06 8:30

Well if you're curious, here you are:

ImagenTransparente.cpp

<br />
// ImagenTransparente.cpp: archivo de implementación<br />
//<br />
<br />
#include "stdafx.h"<br />
#include "Transparencia.h"<br />
#include "ImagenTransparente.h"<br />
#include ".\imagentransparente.h"<br />
<br />
<br />
// ImagenTransparente<br />
<br />
IMPLEMENT_DYNAMIC(ImagenTransparente, CStatic)<br />
ImagenTransparente::ImagenTransparente(int nID, BYTE transparencia /* = 0x7f (50%) */)<br />
{<br />
	bm.LoadBitmap(nID);<br />
<br />
	bm.GetBitmap(&BitMap);<br />
	m_nWidth = BitMap.bmWidth;<br />
	m_nHeight = BitMap.bmHeight;<br />
<br />
	bf.AlphaFormat = 0;<br />
	bf.BlendFlags = 0;<br />
	bf.BlendOp = AC_SRC_OVER;<br />
	bf.SourceConstantAlpha = transparencia;<br />
<br />
	this->nID = nID;<br />
}<br />
<br />
ImagenTransparente::~ImagenTransparente()<br />
{<br />
}<br />
<br />
<br />
BEGIN_MESSAGE_MAP(ImagenTransparente, CStatic)<br />
	ON_WM_CREATE()<br />
	ON_WM_PAINT()<br />
	ON_WM_ERASEBKGND()<br />
	ON_WM_MOVE()<br />
END_MESSAGE_MAP()<br />
<br />
<br />
<br />
// Controladores de mensajes de ImagenTransparente<br />
<br />
<br />
int ImagenTransparente::OnCreate(LPCREATESTRUCT lpCreateStruct)<br />
{<br />
	if (CStatic::OnCreate(lpCreateStruct) == -1)<br />
		return -1;<br />
<br />
	CRect rect;<br />
	GetWindowRect(&rect);<br />
	GetParent()->ScreenToClient(&rect);<br />
<br />
	miPosicion.left = rect.left;<br />
	miPosicion.right = rect.right;<br />
	miPosicion.top = rect.top;<br />
	miPosicion.bottom = rect.bottom;<br />
<br />
	this->izquierda = rect.left;<br />
	this->arriba = rect.top;<br />
<br />
	CClientDC dc(this);<br />
<br />
	CDC MemDC;<br />
	MemDC.CreateCompatibleDC(&dc);<br />
	CBitmap MemBmp;<br />
	MemBmp.CreateCompatibleBitmap(&dc, m_nWidth, m_nHeight);<br />
	CBitmap *pOldMemBmp = MemDC.SelectObject(&MemBmp);<br />
<br />
	CDC MemDC2;<br />
	MemDC2.CreateCompatibleDC(&dc);<br />
	CBitmap *pOldbmp = MemDC2.SelectObject(&bm);<br />
	MemDC.BitBlt(0, 0, m_nWidth, m_nHeight, &MemDC2, 0, 0, SRCCOPY);<br />
	MemDC2.SelectObject(pOldbmp);<br />
<br />
	dc.AlphaBlend(0, 0, m_nWidth, m_nHeight, &MemDC, 0, 0, m_nWidth, m_nHeight, bf);<br />
<br />
	MemDC.SelectObject(pOldMemBmp);<br />
<br />
	return 0;<br />
}<br />
<br />
void ImagenTransparente::OnPaint()<br />
{<br />
	CPaintDC dc(this); // device context for painting<br />
<br />
	CDC MemDC;<br />
	MemDC.CreateCompatibleDC(&dc);<br />
	CBitmap MemBmp;<br />
	MemBmp.CreateCompatibleBitmap(&dc, m_nWidth, m_nHeight);<br />
<br />
	CBitmap *pOldMemBmp = MemDC.SelectObject(&MemBmp);<br />
<br />
	CDC MemDC2;<br />
	MemDC2.CreateCompatibleDC(&dc);<br />
	CBitmap *pOldbmp = MemDC2.SelectObject(&bm);<br />
	MemDC.BitBlt(0, 0, m_nWidth, m_nHeight, &MemDC2, 0, 0, SRCCOPY);<br />
	MemDC2.SelectObject(pOldbmp);<br />
<br />
	//dc.BitBlt(0, 0, m_nWidth, m_nHeight, &MemDC, 0, 0, SRCCOPY);<br />
<br />
	dc.AlphaBlend(0, 0, m_nWidth, m_nHeight, &MemDC, 0, 0, m_nWidth, m_nHeight, bf);<br />
<br />
	MemDC.SelectObject(pOldMemBmp);<br />
}<br />
<br />
BOOL ImagenTransparente::OnEraseBkgnd(CDC* pDC)<br />
{<br />
	return TRUE;<br />
}<br />
<br />
void ImagenTransparente::OnMove(int x, int y)<br />
{<br />
	this->SetWindowPos(&CWnd::wndBottom, miPosicion.left, miPosicion.top, miPosicion.right - miPosicion.left, miPosicion.bottom - miPosicion.top, 0);<br />
	GetParent()->Invalidate();<br />
}<br />

ImagenTransparente.h

<br />
#pragma once<br />
<br />
<br />
// ImagenTransparente<br />
<br />
class ImagenTransparente : public CStatic<br />
{<br />
	DECLARE_DYNAMIC(ImagenTransparente)<br />
<br />
public:<br />
	ImagenTransparente(int nID, BYTE transparencia = 0x7f /* 0x7f = 50% */);<br />
	virtual ~ImagenTransparente();<br />
<br />
protected:<br />
	DECLARE_MESSAGE_MAP()<br />
<br />
private:<br />
	CBitmap bm;<br />
	BITMAP BitMap;<br />
	BLENDFUNCTION bf;<br />
	CRect miPosicion;<br />
<br />
	int m_nWidth;<br />
	int m_nHeight;<br />
	int izquierda;<br />
	int arriba;<br />
	int nID;<br />
public:<br />
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);<br />
	afx_msg void OnPaint();<br />
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);<br />
	afx_msg void OnMove(int x, int y);<br />
};<br />

Written by: Rafael Fernández López.

Visit: http://www.maestroprogramador.com

Arrays

#hackC++25-Apr-06 6:01