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

Re: Retreiving attributs of a node

Rage30-Jan-06 3:42

Rage

30-Jan-06 3:42

A pointer on a TVITEM structure. Here you go:

typedef struct tagTVITEM{
    UINT      mask;
    HTREEITEM hItem;
    UINT      state;
    UINT      stateMask;
    LPTSTR    pszText;
    int       cchTextMax;
    int       iImage;
    int       iSelectedImage;
    int       cChildren;
    LPARAM    lParam;
} TVITEM, FAR *LPTVITEM;

See MSDN for more info.

Typical code snippet:

TVITEM tvi;
ZeroMemory(&tvi,sizeof(tvi));
tvi.hItem = YourItemId;           // Here for the item id
tvi.mask = TVIF_TEXT |TVIF_STATE; // Here the attributes you want to retrieve

m_TreeCtrl.GetItem(&tvi);

// Now tvi is fulled with the item's attributes.

~RaGE();

Re: Retreiving attributs of a node

kandukuri30-Jan-06 3:57

kandukuri

30-Jan-06 3:57

Thanku rage

but i m getting an error of
GetItem cannot convert parameter 1 from 'struct myClass::MyFunction:tagTVITEM *' to 'struct tagTVITEMA *'

Re: Retreiving attributs of a node

Rage30-Jan-06 4:10

Rage

30-Jan-06 4:10

Can you post the part of the code where you are doing the call ? Are you using MFC ?

~RaGE();

Re: Retreiving attributs of a node

David Crow30-Jan-06 4:56

David Crow

30-Jan-06 4:56

You've erroneously made tagTVITEM part of your class, which is unnecessary.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

Re: Retreiving attributs of a node

Rage30-Jan-06 5:10

Rage

30-Jan-06 5:10

Good point David, I missed the myClass::MyFunction. He must have misinterpreted my thread and define the TVITEM I gave as an example. Never give too much information Roll eyes | :rolleyes:

~RaGE();

Re: Retreiving attributs of a node

David Crow30-Jan-06 3:42

David Crow

30-Jan-06 3:42

kandukuri wrote:

but what is the parameter for this GetItem( ) method

A pointer to a TVITEM structure.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

TDI

viliam30-Jan-06 2:45

viliam

30-Jan-06 2:45

Hi,
I am trying to do TDI hook driver, I just need to get notification, something like sysinternals.com TDIMon does.
I have no problem to get most of the TDI IRPs but
TDI_ACCEPT or TDI_SEND I never got..
Does anyone know what I am doing wrong?
What is special on this IRPs?
Thanx for help

viliam

Re: TDI

Toby Opferman30-Jan-06 8:16

Toby Opferman

30-Jan-06 8:16

You have implemented a filter driver on top of \Device\Tcp ? If you are on the top of the device stack you will get all the IRPs there is no special handling of those particular IRPs unless you are doing something different than I beleive you to be doing.

What Application are you attempting to filter that is not working correctly, have you verified that TDIMon is working correctly in the same situation? Also, there is a seperate device used by sockets which is \Device\Afd which I believe has a different interface than TDI. I believe there is an open source project which is a firewall that filters this interface for which you may be able to review (It also filters TDI) to find out this interface. I believe it is on sourceforge.

8bc7c0ec02c0e404c0cc0680f7018827ebee

Saving a BITMAP

spen1130-Jan-06 2:13

spen11

30-Jan-06 2:13

Hi all,

I have created a (very simple) bitmap editing program with a dialog based MFC project. Everything seems in order so far but I don't know how to save the HBITMAPs that I have created to file. I have tried using snippets of code from other examples but to no avail.

Any help would be much appreciated Big Grin | :-D

Re: Saving a BITMAP

Rage30-Jan-06 2:21

Rage

30-Jan-06 2:21

Is it not possible to serialize your bitmap ? Create a CBitmap from your handle HBITMAP using CBitmap::FromHandle, then Serialize it.

~RaGE();

Re: Saving a BITMAP

Vipin Aravind30-Jan-06 2:48

Vipin Aravind

30-Jan-06 2:48

If it is a DDB(device dependent bitmap) use GetDIBits(...) on the HBITMAP and get the
DIB with the format of your choice specified via the BITMAPINFO. Once got the DIB bits,
you can save to the file by putting the BITMAPFILEHEADER,BITMAPINFO and the bits itself
to a file in that sequence.

Vipin - MVP

Re: Saving a BITMAP

Laxman930-Jan-06 21:26

Laxman9

30-Jan-06 21:26

Here is the link of codeproject that may help you for saving the bitmap.

http://www.codeproject.com/bitmap/drawing2bitmap.asp

Thanks and Regards
Laxman

FAILURE is the first step towards SUCCESS Cool | :cool:

Wrong Colors

Great A'Tuin30-Jan-06 1:55

Great A'Tuin

30-Jan-06 1:55

hi,

strange problem with my colors: i want to display a tray icon but it always appears in black & white although the image HAS color. I've tried it with a 256 color bitmap, a 256 color icon, a 24 Bit color bitmap and a 24 Bit color icon (every variant with 16x16 Pixel) each time the same effect - JUST BLACK AND WHITE. Even with different functions for loading the images hasn't changed it. (tried LoadIcon, LoadImage and CreateIconIndirect )

any ideas what this may trigger ?

greets

Re: Wrong Colors

benjymous30-Jan-06 4:06

benjymous

30-Jan-06 4:06

Unless you're using Windows XP, tray icons always render using the standard 16 system colours, so you'll need to provide a 16 colour icon to stop it trying to convert it for you (which usually looks awful)

On XP, it renders the icons properly, using all available colours

--
Help me! I'm turning into a grapefruit!
Buzzwords!

Re: Wrong Colors

Great A'Tuin30-Jan-06 4:16

Great A'Tuin

30-Jan-06 4:16

you're right - windows converts my icon into 16 colors. but how do i can make sure to use only the standard 16 system colors ?

Re: Wrong Colors

benjymous30-Jan-06 9:30

benjymous

30-Jan-06 9:30

The simplest way is to copy your existing icon, add a new 16 colour icon to the resource in visual studio, and paste in your icon. This will create a 16 colour icon which you can then manually edit until it looks good enough (you can often redraw the icon yourself far better than windows will do itself when it remaps the icon at runtime)

--
Help me! I'm turning into a grapefruit!
Buzzwords!

Re: Wrong Colors

Great A'Tuin30-Jan-06 22:16

Great A'Tuin

30-Jan-06 22:16

hm, although i hoped that i didn't have to redraw the icon by my self it's seems there leads no way around.

16 colors are ridiculous Mad | :mad:

however,

thanks anyway.

Checking other processes memory usage?

chilituna30-Jan-06 1:38

chilituna

30-Jan-06 1:38

Hi,

I want to create a program that can monitor another processes memory usage..

Where it can find information about other processes memory usage??

WinAPI is large and wide and I am lost Sigh | :sigh:

Re: Checking other processes memory usage?

khan++30-Jan-06 2:12

khan++

30-Jan-06 2:12

I think this function is mainly what you are looking for:
GetProcessMemoryInfo(...);
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/perfmon/base/getprocessmemoryinfo.asp[^]
There is a link to an example also.

this is this.

Re: Checking other processes memory usage?

Blake Miller30-Jan-06 8:06

Blake Miller

30-Jan-06 8:06

You can also use OpenProcess and VirtualQueryEx

People that start writing code immediately are programmers (or hackers), people that ask questions first are Software Engineers - Graham Shanks

Re: Checking other processes memory usage?

chilituna30-Jan-06 21:37

chilituna

30-Jan-06 21:37

Ok, thanks! Smile | :)

diff betwn child and worker thread?

vikas amin30-Jan-06 1:37

vikas amin

30-Jan-06 1:37

what is the difference between
Child thread
Worker thread
How do we create both threads /??

Vikas Amin
Embin Technology
Bombay

Re: diff betwn child and worker thread?

khan++30-Jan-06 2:06

khan++

30-Jan-06 2:06

I believe they are the same thing.
Worker threads are child threads if they are in the same process.
A child thread closes when the main thread of the program closes.

this is this.

Re: diff betwn child and worker thread?

Vipin Aravind30-Jan-06 2:50

Vipin Aravind

30-Jan-06 2:50

Conceptually, in MFC we got two type of threads:-
UI threads and worker threads.

Have a look at AfxBeginThread(...) documentation.

Vipin - MVP

Re: diff betwn child and worker thread?

David Crow30-Jan-06 2:56

David Crow

30-Jan-06 2:56

Vipin Aravind wrote:
Conceptually, in MFC we got two type of threads:-
UI threads and worker threads.

Specifically, however, they are thread with message pump, and thread without message pump.

"The greatest good you can do for another is not just to share your riches but to reveal to him his own." - Benjamin Disraeli

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