C / C++ / MFC Discussion Boards

Bob Stanneveld21-Dec-03 20:55

21-Dec-03 20:55

Navin wrote:
If you're using straight C++, it's a little tricker since you have to do all the string allocaiton and stuff

That would be straight C Poke tongue | ;-P

, straight C++ would be a solution with the std::string.

Poke tongue | ;-P

;P;P

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Accessing struct members;

Bo Hunter21-Dec-03 16:41

Bo Hunter

21-Dec-03 16:41

I have a DllGetVersion function that takes a pointer to
DLLVERSIONINFO. When I check the cbSize field, how do I
set the members if cbSize is sizeof(DLLVERSIONINFO2) struct?

Thank You
Bo Hunter

Re: Accessing struct members;

Michael Dunn21-Dec-03 18:58

Michael Dunn

21-Dec-03 18:58

From the docs:

dwFlags: Reserved.
ullVersion: Value that contains the version information. It is divided into four 16-bit fields containing the major and minor version numbers, the build number, and the QFE version, in that order. Use the MAKEDLLVERULL macro to construct this value.

The page on MAKEDLLVERULL has an example usage: MAKEDLLVERULL(4,71,0,0) which indicates version 4.71.0.0

--Mike--
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Re: Accessing struct members;

Bo Hunter22-Dec-03 14:22

Bo Hunter

22-Dec-03 14:22

Actually Michael I have read the same info.
I was wondering since my function took DLLVERSIONINFO*
struct and cbSize == sizeof(DLLVERSIONINFO2) how
would I set the new members. Put it this way, is this safe?
Or will it even work?

STDAPI DllGetVersion(DLLVERSIONINFO* pDllInfo)
{
	// DLLVERSIONINFO
	pDllInfo->dwBuildNumber         = BUILD_NUMBER;
	pDllInfo->dwMajorVersion        = MAJOR_NUMBER;
	pDllInfo->dwMinorVersion        = MINOR_NUMBER;
	pDllInfo->dwPlatformID          = PLATFORM_ID;

	if (pDllInfo->cbSize == sizeof(DLLVERSIONINFO2))
	{
		// DLLVERSIONINFO2
		DLLVERSIONINFO2* pDllInfo2 = (DLLVERSIONINFO2*)pDllInfo;
		pDllInfo2->ullVersion = MAKEDLLVERULL(MAJOR_NUMBER,
                                                        MINOR_NUMBER,
							BUILD_NUMBER,
							DLL_SRVPACK);
	}

	return (S_OK);
}

Thank You
Bo Hunter

Printing Text from and edit box in a dialog application

JKohm21-Dec-03 11:40

JKohm

21-Dec-03 11:40

Can anyone tell me how to print text from and edit box using dcPrint?
Thankyou in advance.

Re: Printing Text from and edit box in a dialog application

Roger Allen22-Dec-03 0:53

Roger Allen

22-Dec-03 0:53

If you are doing this in a MFC diaog application. Add Print/print preview support[^].

Get the text from your edit control and use Printing a long CString across multiple pages[^]

Once you have the basic printing working, Further printing tips[^] may be of use.

HTH

Roger Allen - Sonork 100.10016
If your dead and reading this, then you have no life!

dial-up connection

Member 74005421-Dec-03 10:18

Member 740054

21-Dec-03 10:18

hi i making a program to make dial-up connection and connecting to the
net ,i dial with numbers stored in database , i use win API
like(InternetDial() ,InternetHangUp()), but i have two problems

1)InternetDial is dialing with default network connection on pc.
i need to make it taking numbers from database.?????

2) i want to create a new dial-up connection on pc, idont now what
function i can use

thank u for advanced help
send me on hz_csharp@hotmail.com

Re: dial-up connection

pma21-Dec-03 11:36

pma

21-Dec-03 11:36

try to use rasdial from Dundas Software, its free and comes with source code !

Compiler Error

RedDragon2k21-Dec-03 9:44

RedDragon2k

21-Dec-03 9:44

I need quick help.

When i compile my code the compiler tell me that:

fatal error C1010: Unerwartetes Dateiende waehrend der Suche nach der Direktive fuer die vorkompilierte Header-Datei

I dont know what it does mean in englisch i think something with:
precompiled Header direktiv

How can I solve this problem ???

Sry for my bad english.

Send an mail as quick as you can at reddragon2kx@hotmail.com

Re: Compiler Error

Niall Barr21-Dec-03 10:25

Niall Barr

21-Dec-03 10:25

You've probably got a cpp file without #include "stdafx.h" in it but with precompiled headers selected in the project settings.

Niall.

Re: Compiler Error

RedDragon2k21-Dec-03 10:27

RedDragon2k

21-Dec-03 10:27

Thx. It works

Smile | :)

Re: Compiler Error

Michael Dunn21-Dec-03 11:37

Michael Dunn

21-Dec-03 11:37

See the FAQ
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?[^]

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Pinky, are you pondering what I'm pondering?
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Re: Compiler Error

ldaoust22-Dec-03 16:25

ldaoust

22-Dec-03 16:25

Babelfish translated you compile message as: Unexpected file end during the search for the directive for the before-compiled header file.

Not bad Blush | :O

)

It means that the file being compiled does not include 'stdafx.h' which is the pre-compiled header needed. You can either #include 'stdafx.h' at the top of the file, or change you compiling options for this file so that it does not use pre-compiled header.

Hope this helps,
Louis.

CProgressCtrl problem in long function

IGx8921-Dec-03 9:21

IGx89

21-Dec-03 9:21

My app (if you play Freelancer, you've probably used it) has a function that takes up to 60 seconds to complete, and updates the current status using a CProgressCtrl. The problem is, sometimes after a little while (usually around half way) the progress control stops updating (even though I'm calling ProgressCtrl.RedrawWindow() every time), thus making the user think my app has stopped responding. Is there any way to get around that problem, without having to go through all the work and trouble of making a separate worker thread?

Re: CProgressCtrl problem in long function

Michael Dunn21-Dec-03 11:40

Michael Dunn

21-Dec-03 11:40

Yes, don't send as many messages to the control. I once had an app that read in a big database (like 50K records) and sent a msg after every record. It did exactly what you describe. Once I changed it to send a message every few hundred records, it worked perfectly.

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
Actual sign at the laundromat I go to: "No tinting or dying."

Re: CProgressCtrl problem in long function

IGx8921-Dec-03 12:57

IGx89

21-Dec-03 12:57

Thanks, that worked perfectly! Big Grin | :-D

Finding out which button has focus

blindcop21-Dec-03 8:22

blindcop

21-Dec-03 8:22

Hi! I have a list control that I only show when it has the focus. I have done this by having a button that displays the list, and then catch KillFocus on the list to hide it.

If I click on the button again (more of a switch) I want to hide the control. The problem is that the KillFocus event is handled first, so the button thinks the window is hidden so displays it again.

How can I tell which control is getting the focus when I am in my KillFocus event?

Cheers in advance,
Dom

Re: Finding out which button has focus

David Crow22-Dec-03 3:53

David Crow

22-Dec-03 3:53

blindcop wrote:
How can I tell which control is getting the focus when I am in my KillFocus event?

GetFocus().

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

USB

BladeIII21-Dec-03 4:40

BladeIII

21-Dec-03 4:40

how can i program a software application for a usb - printer.
i mean how can i connect to the printer?

please can you send me an answer to my e-mail adress (daniel.mitmasser@sz-ybbs.ac.at)

thank you very much.

Daniel

Accurate window sizes

nukenuts21-Dec-03 3:09

nukenuts

21-Dec-03 3:09

I've created an application with a splitter window and
two views. I want both views to have a height of 480 and
widths of 640 and 150 respectively

in the OnSize function of the main frame I have:

void CMainFrame::OnSize(UINT nType, int cx, int cy)
{
CFrameWnd::OnSize(nType, cx, cy);

// Don't adjust the splitters if the application
// is minimized or the splitters have not been
// initialized.
if (m_initSplitters && nType != SIZE_MINIMIZED)
{
// Adjust the row/column info to compensate for
// the new size
m_splitter.SetRowInfo( 0, m_mainViewHeight, 0 );
m_splitter.SetColumnInfo(0, m_mainViewWidth, 0 );
m_splitter.SetColumnInfo(1, m_tileViewWidth, 0 );

// Apply our changes to the splitter
m_splitter.RecalcLayout();
}
}

in the PreCreate function of the main frame I have:

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
CRect rect(0, 0, 640 + 150, 480);

AdjustWindowRectEx(&rect, cs.style, true, cs.dwExStyle);

cs.cx = rect.right - rect.left;
cs.cy = rect.bottom - rect.top;

if( !CFrameWnd::PreCreateWindow(cs) )
return FALSE;

return TRUE;
}

The height of the splitter is 480. (Used CSplitterWnd::GetClientRect())
However, the heights of the views is 476.

The splitter width is 790.
But the widths of the views are 640(correct) and 139 respectively.

How can I correct the sizes of the view windows?

Re: Accurate window sizes

nukenuts21-Dec-03 3:18

nukenuts

21-Dec-03 3:18

Never mind, got it.

Re: Accurate window sizes

Johann Gerell21-Dec-03 5:19

Johann Gerell

21-Dec-03 5:19

Then please enlighten anyone witrh the same problem as you. How did you solve it? What was wrong?

"Never mind. I just solved it." will never get you as far as a response the next time you ask a question.

--
Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so. (Douglas Adams)

Re: Accurate window sizes

nukenuts22-Dec-03 3:03

nukenuts

22-Dec-03 3:03

O.K., here's what I did:
I derived a class from CSplitterWnd so I could access the protected members relating to it's border size and the size of the splitter itself. Then in the precreatewindow() of my main frame I used this info to calculate the correct size of my main frame. I also added in the scrollbars sizes.

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
// Set the size and style of the window
cs.style &= ~WS_MAXIMIZEBOX;
// cs.style &= ~WS_MINIMIZEBOX;
cs.style &= ~WS_THICKFRAME;
cs.style &= ~FWS_ADDTOTITLE;

int totalWidth = m_mapViewWidth +
m_tileViewWidth +
m_splitter.GetSplitterSize().cx +
(m_splitter.GetBorderSize().cx * 2) + (SCROLLBAR_WIDTH*2);

int totalHeight = m_mapViewHeight +
(m_splitter.GetBorderSize().cx * 2) + SCROLLBAR_HEIGHT;

CRect rect(0, 0, totalWidth, totalHeight);

AdjustWindowRectEx(&rect, cs.style, true, cs.dwExStyle);

cs.cx = rect.right - rect.left;
cs.cy = rect.bottom - rect.top;

if( !CFrameWnd::PreCreateWindow(cs) )
return FALSE;

return TRUE;
}

Re: Accurate window sizes

Johann Gerell22-Dec-03 11:40

Johann Gerell

22-Dec-03 11:40

Great!

--
Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so. (Douglas Adams)

<b>Get Relations Betwwen The Tables</b>

21-Dec-03 0:35

I Want to Write Program That Return All The Relations
Between The Tables In The Database And The Type of The Relation (one to Many.....etc) specifically to
Access ,SQl Server Oracle
Thanks n Advance

-- modified at 20:17 Monday 29th August, 2005

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