C / C++ / MFC

11-Sep-06 2:43

I usually mixed them and come into a mess.

Maximilien11-Sep-06 2:44

Maximilien

11-Sep-06 2:44

geez.

HWND : handle to a HWD, or to a Window.

HDC : handle to a DC, or to a Device Context.

Maximilien Lincourt
Your Head A Splode - Strong Bad

bloodwinner11-Sep-06 2:46

11-Sep-06 2:46

yes, I can understand the window, but what is exactly the Device Context? what's this include? Dose it include the window, the button, the listbox....etc?

Rinu_Raj11-Sep-06 3:04

Rinu_Raj

11-Sep-06 3:04

A data structure in Windows programming that is used to define the attributes of text and images that are output to the screen or printer. The device context (DC) is maintained by GDI. A DC, which is a handle to the structure, is obtained before output is written and released after the elements have been written.

RinuRaj

Need help: fatal error C1853: 'Debug/kui.pch' is not a precompiled header file created with this compiler

David Crow11-Sep-06 3:07

David Crow

11-Sep-06 3:07

bloodwinner wrote:
...what is exactly the Device Context?

See here.

"Talent without discipline is like an octopus on roller skates. There's plenty of movement, but you never know if it's going to be forward, backwards, or sideways." - H. Jackson Brown, Jr.

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bloodwinner11-Sep-06 1:54

Re: Need help: fatal error C1853: 'Debug/kui.pch' is not a precompiled header file created with this compiler

11-Sep-06 1:54

It pointed at the first line -#include "stdafx.h" and report this error. How to solve this problem?

Hamid_RT11-Sep-06 2:03

Hamid_RT

11-Sep-06 2:03

See fatal error C1853: 'Debug/*.pch' is not a precompiled header file created with this compiler[^] maybe it is some helpful to you

WhiteSky

Re: Need help: fatal error C1853: 'Debug/kui.pch' is not a precompiled header file created with this compiler

toxcct11-Sep-06 2:25

toxcct

11-Sep-06 2:25

when using precompiled header (see in your project setting), the #include "stdafx.h" directive must be leading every other includes in a cpp file.

ps: delete your other duplicate post

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: Need help: fatal error C1853: 'Debug/kui.pch' is not a precompiled header file created with this compiler

Michael Dunn11-Sep-06 7:40

Michael Dunn

11-Sep-06 7:40

Rebuild all to recreate the PCH file.

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

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Need help: fatal error C1853: 'Debug/kui.pch' is not a precompiled header file created with this compiler

bloodwinner11-Sep-06 1:50

Re: Need help: fatal error C1853: 'Debug/kui.pch' is not a precompiled header file created with this compiler

11-Sep-06 1:50

It points at the first line "#include "stdafx.h"" and gave this fatal error.

ovidiucucu11-Sep-06 4:02

ovidiucucu

11-Sep-06 4:02

Just take a look in MSDN[^]

Ovidiu Cucu
Microsoft MVP - Visual C++

WSAInstallServiceClass() fails with error code 10045

Ranjan Shrestha11-Sep-06 1:45

Ranjan Shrestha

11-Sep-06 1:45

I tried running the sample provided with MSDN. It also fails with the same error code. Does anybody know why is the function call failing in my computer?

Help with MFC Timers

waxie11-Sep-06 1:22

waxie

11-Sep-06 1:22

Hi guys,

I tried making my own timer application, where a number increments every second.
I just wonder how SetTimer() and OnTimer() works? My timer class really does not work! Dead | X|

It can initialize the timer but then it does not get into the OnTimer() function even when the time is due. Cry | :((

How does this really work? I would really appreciate it if someone can give me a simple but concrete example. Yes, there are some samples in the internet, but really, I could not understand the mechanics beneath them. Can someone provide me with simple steps on creating this simple timer class?

If I could only make this work.. my timer class is super essential to make everything in my application work.

To the person who could help me with this, kudos to you! Cool | :cool:

Many thanks,

Rose | [Rose]

Christina

prasad_som11-Sep-06 1:34

prasad_som

11-Sep-06 1:34

waxie wrote:
It can initialize the timer but then it does not get into the OnTimer() function even when the time is due.

Can you show how you have initialized it?
Simple example would be like this

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

//Create timer in OnCreate
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	//some other stuff
	SetTimer(1,1000,NULL);
        return 0;
}
//handler
void CMainFrame::OnTimer(UINT nIDEvent) 
{
	CFrameWnd::OnTimer(nIDEvent);
//handle
}

Prasad
Notifier using ATL

Ranjan Shrestha11-Sep-06 1:38

Ranjan Shrestha

11-Sep-06 1:38

For your using OnTimer() you need to inherit your class from CWnd base class.

// Header file should look like this
class CMyTimer: public CWnd
{
...

afx_msg void OnTimer(UINT nIDEvent);
DECLARE_MESSAGE_MAP()
};

// Source file should look like this

....
BEGIN_MESSAGE_MAP(CMyTimer, CWnd)
ON_WM_TIMER()
END_MESSAGE_MAP()

void CMyTimer::OnTimer(UINT nIDEvent)
{
//Todo
}

Do not forget to create a timer object after construction the object
i.e., any where in the program you should -
CMyTimer *pTimer = new CTimer;
pTimer->Create(......);

pTimer->SetTimer(.....);

Your Timer should then work.

Kurt _B11-Sep-06 3:31

Kurt _B

11-Sep-06 3:31

Why would you create a whole class just for a timer? Seems to be overkill.