Re: scrollbar - C / C++ / MFC Discussion Boards

Re: passing values from edit boxes to the button

lyn26-Jun-04 18:17

26-Jun-04 18:17

thanx very much.. at least u give me something to work on.. i'm new to vc but i'll try it out.. thanks very much! Big Grin | :-D

~wilDcat~

Re: passing values from edit boxes to the button

PJ Arends26-Jun-04 18:24

PJ Arends

26-Jun-04 18:24

You can use strtol(), strtoul(), or strtod() (among others) to convert strings to numbers.

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

Need a GetClusterSize function

Paul Steane26-Jun-04 8:47

Paul Steane

26-Jun-04 8:47

I need a GetClusterSize function so that I can work out how much space a file will occupy on a particular disk.

The WIN32 function GetDiskFreeSpace should do this but doesn't work for large disks. The replacement, GetDiskFreeSpaceEx, doesn't have this capability.

So what do I do?

Target is any WIN32, VC++ 6, MFC.

a font from a ttf file?

CaesarCZ26-Jun-04 5:56

CaesarCZ

26-Jun-04 5:56

Hello,
is there a way to make a HFONT out of a TTF file? without installing the font? (I need a font for my project, but I don't want to mess up with the installation - and I also want it to be working when the user reinstalls the OS and keeps the app)

thanks a lot

Re: a font from a ttf file?

darkbyte27-Jun-04 4:22

darkbyte

27-Jun-04 4:22

try and take a look at AddFontFile(...) which maps to GdipPrivateAddFontFile(...) in GDI+.

Do a search on MSDN for the functions i mentioned or try "Font Functions" in the search box.

DarkByte

How can I rename an NT user using the ADSI?

zzzhouzhou26-Jun-04 5:46

zzzhouzhou

26-Jun-04 5:46

How can I rename an NT user using the ADSI(Active Directory Service Interfaces)? The IADs::SetInfo method can only change user's fullname not rename a user.

scrollbar

cruscotto26-Jun-04 4:36

cruscotto

26-Jun-04 4:36

hi all!
Mu problem is to draw the scrolbars on my application.
It is realized with mfc and it is MDI.

I wanto to draw the scrollbars on the child window when I load an image larger than the window.

I try to edit code in the ChilFrm.cpp file and i wrote this:

BOOL CChildFrame::PreCreateWindow(CREATESTRUCT& cs)
{
if( !CMDIChildWnd::PreCreateWindow(cs) )
return FALSE;
cs.style |= WS_VSCROLL | WS_HSCROLL;

return TRUE;
}

In this way the two scrollbar appear, but they don't do anything.

can you help me?

thks a sorry for my english

Re: scrollbar

Prakash Nadar26-Jun-04 7:31

Prakash Nadar

26-Jun-04 7:31

cruscotto wrote:
In this way the two scrollbar appear

yes it will coz you are enableing both the scroll bars...

you need to use setscrollrange method to start working on the scrollbar...

I'll write a suicide note on a hundred dollar bill - Dire Straits

Re: scrollbar

cruscotto26-Jun-04 21:51

cruscotto

26-Jun-04 21:51

ok, i added the setscrollrange function to my code for both scrollbars.

Now i want the they appear only when i load an image that is larger than the window. I see that exist the ShowScrollBar function, but it give me a runtime error, always!I put the code in the precreatewindow of the childFrm class.

can you explain me? Confused | :confused:

Toolbar flicker

Jim Crafton26-Jun-04 4:07

Jim Crafton

26-Jun-04 4:07

I am using the Win32 toolbar common control in some code. When I resize the window that the toolbar is parented to it flickers. Is there any way to stop this?
The toolbar's parent window is created with no brush, and returns false for WM_ERASEBKGND. Is there some thing special about the way I need to handle the toolbar itself?

Thanks

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Real Mentats use only 100% pure, unfooled around with Sapho Juice(tm)!

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Re: Toolbar flicker

Michael Dunn26-Jun-04 12:42

Michael Dunn

26-Jun-04 12:42

Check that your main window has the WS_CLIPCHILDREN style.

--Mike--
Personal stuff:: Ericahist | Homepage
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----
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Re: Toolbar flicker

Jim Crafton29-Jun-04 18:35

Jim Crafton

29-Jun-04 18:35

I checked, and all of my controls have the WS_CLIPCHILDREN bit set, the main window, and the any custom child control's that get created (the toolbar's parent is a custom child control)

¡El diablo está en mis pantalones! ¡Mire, mire!

Real Mentats use only 100% pure, unfooled around with Sapho Juice(tm)!

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0 rows returned

Visual Basic Question

Stylemaster26-Jun-04 3:47

Stylemaster

26-Jun-04 3:47

Hey there

I've just started to learn programming and using visual basic 6 (teaching myself) would really appreciate it if someone could explain to me how it is that variables work and exactly how to use them as this part has got me stumped.

Thanx a million

Style

Work hard, Play hard

Re: Visual Basic Question

Hesham Amin26-Jun-04 4:15

Hesham Amin

26-Jun-04 4:15

since this is a VB6 Q.
you should send it to the vb forum not vc++

anyway :
you use variables to store some data in memory for processing...

for example..

dim a as single
dim b as single
dim c as single 'here i made 3 place holders in memory for single variables.

a=CSng(Text1.Text) 'read data from Text1 into memory location called a
b=CSng(Text2.Text) 'read data from Text1 into memory location called b
c=(a+b)/2 'get the avarage of the two numbers and store it in c for latter use

MsgBox c 'use the variable c

Send msg to child by using FindWindow

Sumit Kapoor26-Jun-04 0:16

Sumit Kapoor

26-Jun-04 0:16

hi...

I've to much deep child to which i want to sen msg. from mainfrm class..

as there r some RUNTIME_CLASS...
so can't understand how to pass msg. from mainframe to that class..
can anybody help me..
I've hint as v may need to use FindWindow..But can't get solution yet from tweo days..
can anybody help?

THanks

---Sumit Kapoor--- sumit_kapoor1980@hotmail.com

Re: Send msg to child by using FindWindow

PJ Arends26-Jun-04 6:06

PJ Arends

26-Jun-04 6:06

You have asked this question before. A quick look in MSDN will reveal a host of functions that you could use to find the CWnd pointer to the window you want to send the message to. Look up CWnd, CFrameWnd, CSplitterWnd, CView, and CDocument. Read what each of the member functions does, and find the ones that will do what you want.

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

CComboBox

TrungHuynh25-Jun-04 23:57

TrungHuynh

25-Jun-04 23:57

Hello every body

I'm writting a GUI TOol Kit for MFC control, for every controls of MFC

CButton,... I replace with CBMSButton... and i use the

DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) function to draw.

IT work fine with button,Titlebar, CheckBox, Radio

But with CComboBoxEx i replace with CBMSComboBox and i call DrawItem

but this function isn't called. I don't know why ?

Please help me. Thank so much

Re: CComboBox

PJ Arends27-Jun-04 8:01

PJ Arends

27-Jun-04 8:01

I have had to use the CBS_OWNERDRAWVARIABLE style instead of the CBS_OWNERDRAWFIXED style to get the DrawItem function to work. I do not know why CBS_OWNERDRAWFIXED did not work.

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

C and SMTP

robert cooper25-Jun-04 22:55

robert cooper

25-Jun-04 22:55

Hi,

I want to use SMTP (sendmail) to send email where the body is an HTML document rather than plain text, is this possible and if so how do I go about doing it? I haven't been able to find any sample code other than plain text emails.

Regards

Robert Cooper

Re: C and SMTP

markkuk25-Jun-04 23:11

markkuk

25-Jun-04 23:11

HTML is "plain" text, you send it the same way as an unformatted text message. Just change the "Content-type:" header from "text/plain" to "text/html".

problem with dll

dolph_loe25-Jun-04 20:38

dolph_loe

25-Jun-04 20:38

In a dll, I define a class in the following way:

<br />
class _declspec(dllexport) jalla {<br />
	std::list<int> m_mesh;<br />
};<br />

but when I try to compile it, I get the warning:

<br />
e:\Work\C++\Project\3DGame\3DSLoader.h(19) : warning C4251: 'jalla::m_mesh' : class 'std::list<_Ty>' needs to have dll-interface to be used by clients of class 'jalla'<br />
        with<br />
        [<br />
            _Ty=int<br />
        ]<br />

what is happening?

øivind

Re: problem with dll

dolph_loe25-Jun-04 20:40

dolph_loe

25-Jun-04 20:40

the class is like this:

class _declspec(dllexport) jalla {
std::list<int> m_mesh;
};

øivind

Re: problem with dll

Jörgen Sigvardsson27-Jun-04 11:17

Jörgen Sigvardsson

27-Jun-04 11:17

It means that the instance std::list<int> needs to have a dllexport attribute on it in order to be safely usable by clients. Just like you are tagging jalla with dllexport.

As you may understand, exposing STL datatypes through a DLL interface is not easy. I don't know any good workarounds for it, other than using a non templated and exportable type/class. Sorry. Frown | :(

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Pipes

Archer28225-Jun-04 20:08

Archer282

25-Jun-04 20:08

does anyone know of a tutorial that explains pipes and how to use them

please dont refer to me the MSDN CD.
if i had it, dont you think i would use it?

Re: Pipes

Trollslayer26-Jun-04 5:47

Trollslayer

26-Jun-04 5:47

It is available online at http://msdn.microsoft.com/[^].

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

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