C / C++ / MFC

22491728-Sep-04 1:03

28-Sep-04 1:03

here the member access operator is "."
pFile.Open("img_1.bmp", CFile::modeRead | CFile::shareDenyWrite, &e)

and here the member access operator is "->"
pFile->Read(&fileHeader, sizeof(fileHeader));

There is no spoon.

mail

ardhendu12328-Sep-04 1:46

ardhendu123

28-Sep-04 1:46

Sorry, I gave only the pseudo code. Actually the CFile is passed to another funtion. It like:

BOOL GetBitsValue(CFile *pFile)
{
DWORD dwStart = pFile->GetPosition();
DWORD dwBitsSize = pFile->GetLength();
printf("\n Size %d\n", dwBitsSize);
BITMAPFILEHEADER fileHeader;
memset(&fileHeader, 0, sizeof(fileHeader));
UINT count = pFile->Read(&fileHeader, sizeof(fileHeader));
printf("\nByte Read %d %d\n", count, pFile->GetPosition());
}

Even If I check after opening the file in the same function it returns zero. Its like:
---
DWORD dwStart = pFile.GetPosition();
DWORD dwBitsSize = pFile.GetLength();
printf("\n Size %d\n", dwBitsSize);
BITMAPFILEHEADER fileHeader;
memset(&fileHeader, 0, sizeof(fileHeader));
UINT count = pFile.Read(&fileHeader, sizeof(fileHeader));
printf("\nByte Read %d %d\n", count, pFile.GetPosition());
---

Thanks,
Ardhendu Smile | :)

22491728-Sep-04 17:23

28-Sep-04 17:23

Cannot see anything wrong with your code.
btw from wot kind of application are you trying to run this code.

There is no spoon.

mail

Antony M Kancidrowski28-Sep-04 1:50

Antony M Kancidrowski

28-Sep-04 1:50

Have you tried entering the fully qualified path for the filename e.g. "c:\\graphics\\img_1.bmp" ?

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

ardhendu12328-Sep-04 1:57

ardhendu123

28-Sep-04 1:57

I printed the full path using pFile.GetFilePath(), it's giving me the full path (correct) of the file.

Antony M Kancidrowski28-Sep-04 2:22

Antony M Kancidrowski

28-Sep-04 2:22

Um, Sorry I can not see anything wrong with what you are attempting to do. GetLength should return the size in bytes of the opened file in question.

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

vcplusplus28-Sep-04 4:07

vcplusplus

28-Sep-04 4:07

It is hard for us to help you, if you do not tell us whether there is an error when you use CFile::Read(...).

DWORD dwStart = pFile->GetPosition();
DWORD dwBitsSize = pFile->GetLength();
printf("\n Size %d\n", dwBitsSize);
BITMAPFILEHEADER fileHeader;
memset(&fileHeader, 0, sizeof(fileHeader));

TRY
{
    UINT count = pFile->Read(&fileHeader, sizeof(fileHeader));
    printf("\nByte Read %d %d\n", count, pFile->GetPosition());
}
CATCH(CFileException, e)
{
    printf("\nCFileException %d\n", e->m_cause);
}
END_CATCH

Can't prevent new window opening!

David Crow28-Sep-04 4:11

David Crow

28-Sep-04 4:11

In the calls to printf(), what happens if you change %d to %lu?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

henryfonda27-Sep-04 23:26

henryfonda

27-Sep-04 23:26

Hi there,
can anyone tell me how to stop a link opening in a new window and just use the existing window??
For example: I've got a little explorer app(MFC) with 2 windows. The left side displays the C:/drive
and the right side displays a FTP address. The left window navigates fine, but the right side insists on opening
a new explorer window when I click on a link, instead of changing inside its own window. When the ne window opens... that navigates fine... just the way I want the right side widow to.

Its probably something stupid, knowing me... definately something stupid Smile | :)

But I've tried a bunch of stuff for the last
24 hours now and nothing stops it opening in a new window!
Help!

Henry F

agentnem28-Sep-04 10:00

agentnem

28-Sep-04 10:00

If I understand you correctly, the right pane is actually an HtmlView displaying a web page. In any case, to redirect a link to a specific window you have to use the "target" property. For example:

// somewhere in an HTML file
<a href="http://www.website.com" target="_self">Click here</a>

"target" accepts any of the following:
_blank, which opens the link in a new window
_self, which opens the link in the current window
_parent, which opens the link in the parent window
_top, which opens the link in the top most window

Hope this helps.

henryfonda28-Sep-04 14:25

henryfonda

28-Sep-04 14:25

Thanks for the reply man, but(as usual) its not the HTML I need to change.
Basically its an Explorer Window displaying content on a server via FTP:

Naviagte2(_T(ftp://whatever.com),NULL,NULL)

It displays fine but when I want to open a folder - it launches a new explorer window outside the application and displays the info in that window.

Is there some way of controlling this so that all clicked links open inside the application only?
thanks Smile | :)

Scott H. Settlemier28-Sep-04 14:55

Scott H. Settlemier

28-Sep-04 14:55

handle OnBeforeNavigate2, cancel the navigation if it's to another window, and navigate to the url just cancelled... something like that.

Howto change the font of a CStatic text

henryfonda28-Sep-04 21:04

henryfonda

28-Sep-04 21:04

Clever idea!
Any chance you could scribble the code down? I'll buy u a cup of tea Smile | :)

anderslundsgard27-Sep-04 22:26

anderslundsgard

27-Sep-04 22:26

I have an important CStatic text-lable in my CDialog class.
How may I change the font and color of the text in a simple way?

_____________________________

...and justice for all

APe

Re: Howto change the font of a CStatic text

Manfred Staiger27-Sep-04 23:43

Manfred Staiger

27-Sep-04 23:43

You need to subclass your static control. Then overwrite the OnPaint() member with the following example:

void CMyStaticCtrl::OnPaint() <br />
{<br />
	CPaintDC dc(this); // device context for painting<br />
	<br />
CFont newFont;<br />
LOGFONT lf;<br />
<br />
//Create large Font<br />
memset(&lf, 0, sizeof(LOGFONT));<br />
lf.lfHeight = 20;<br />
lf.lfWeight=FW_BOLD;<br />
strcpy(lf.lfFaceName, "ARIAL");<br />
newFont.CreateFontIndirect(&lf);<br />
<br />
dc.SetBkMode(TRANSPARENT);<br />
dc.SetTextColor(RGB(255, 0, 0));	<br />
dc.SelectObject(&newFont);	<br />
dc.TextOut(0, 0, "Text in Arial, bold, red");<br />
}

Hope this helps

MS

Re: Howto change the font of a CStatic text

anderslundsgard27-Sep-04 23:52

anderslundsgard

27-Sep-04 23:52

Thanks!

A little irritating that you need to subclass to just change the color.

Again - Thanks!!

_____________________________

...and justice for all

APe

Re: Howto change the font of a CStatic text

Manfred Staiger28-Sep-04 0:14

Manfred Staiger

28-Sep-04 0:14

That's right, but the "normal" way didn't work for me. It changed the font, but not the color and the background appeared white even though i set it to transparent.

MS

How can I get the lpClassName?

Guoguor27-Sep-04 21:36

Guoguor

27-Sep-04 21:36

I Want to create a popup window at my dialog based program,could you tell me how?
Could I register a new window class for it?
If no necessary,how can I get the lpClassName which is used at the follow function ?

HWND CreateWindowEx(
DWORD dwExStyle,
LPCTSTR lpClassName,
LPCTSTR lpWindowName,
DWORD dwStyle,
int x,
int y,
int nWidth,
int nHeight,
HWND hWndParent,
HMENU hMenu,
HINSTANCE hInstance,
LPVOID lpParam
);

Thanks!

free like a bird

Re: How can I get the lpClassName?

22491728-Sep-04 0:34

Re: How can I get the lpClassName?

28-Sep-04 0:34

CString sClassName = AfxRegisterWndClass (CS_HREDRAW|CS_VREDRAW);

now use sClassName

There is no spoon.

mail

cmk28-Sep-04 9:39

cmk

28-Sep-04 9:39

lpClassName is either an existing class name

e.g.
Button, Edit, SysTreeView32, ...

or a class that you registered via RegisterClassEx().

...cmk

Save the whales - collect the whole set

About painting on screen?

Zero_One_ADO27-Sep-04 20:59

Zero_One_ADO

27-Sep-04 20:59

Hello everybody,
I want to paint something outside my app.
like a multimedia keyboard:
when I increase or decrease the volume something
appears on screen.

best wishes.
thanks

Re: About painting on screen?

Aamir Butt28-Sep-04 1:37

Aamir Butt

28-Sep-04 1:37

Use GetDesktopWindow() API to get Handle to Desktop Window, Then create a DC with this handle and enjoy Smile | :)

Imagine that you are creating a fabric of human destiny with the object of making men happy in the end, giving them peace and rest at last, but that it was essential and inevitable to torture to death only one tiny creature..and to found that edifice on its unavenged tears, would you consent to be the architect on those conditions? Tell me, and tell me the truth!

-Fyodor Dostoevsky, The Brothers Karamazov

IE Hooking

TPN27-Sep-04 20:57

TPN

27-Sep-04 20:57

Dear friends,

I try to develop a program which can hook into IE (toolbar buttons and/or menu items in IE window) to get all text in all text fields in a HTML page being displayed by IE. This will perform when user click on the toolbar button or menu item.

I don't know how to start and from where to begin. Could you please help me on this and thanks in advanced.

Re: IE Hooking

22491727-Sep-04 21:12