C / C++ / MFC

3-Jul-15 11:41

Hi,

I don't know if this necessarily a MFC question but ...

I am using CAsyncSockets Class I have hard coded the I/P address from my lap top 10.0.0.205

I am wondering if there is a api that would get me this address I tried CASynSocket::GetSockName ut didn't come up with anything

thanks

Re: Home I/P Address

Richard MacCutchan3-Jul-15 21:19

Richard MacCutchan

3-Jul-15 21:19

See https://msdn.microsoft.com/en-us/library/windows/desktop/ms738518(v=vs.85).aspx[^] and associated functions.

Re: Home I/P Address

ForNow4-Jul-15 18:30

Re: Richard this code worked for me thanks

4-Jul-15 18:30

for GetAddrInfoEx I would at least need to specify one more parameter like pname for it to work I think I can find out this info on the registry

and use RegGetValue

Thanks

ForNow4-Jul-15 19:47

How to Convert 8bit image data into RGB based on color palette in Direct2D?

4-Jul-15 19:47

C++

LONG ret_code;
PVOID ipaddr = new char[100];
DWORD ipaddr_size = 100;
   ret_code = RegGetValue(HKEY_LOCAL_MACHINE,
       _T             ("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\{CFCAB3F3-0143-4AE0-A915-873AD57C942A}"),
       _T("IPAddress"),
       RRF_RT_ANY,
       NULL,
       ipaddr,
       &ipaddr_size);

Kiran Satish1-Jul-15 16:10

Kiran Satish

1-Jul-15 16:10

As the question states, how can I perform this in Direct2D? This needs to be done at real-time ~35fps.

thanks

PKNT

modified 2-Jul-15 11:27am.

Re: How to Convert 8bit image data into RGB based on color palette in Direct2D?

CPallini1-Jul-15 20:58

CPallini

1-Jul-15 20:58

Disclaimer: I don't know if Direct2D provide a shortcut for such a operation.
The operation is pretty straightforward: for each input pixel look-up the corresponding palette color and use it to generate the output one. You have to know the bitmap file format in order to do that, however it could be a useful exercise.

Re: How to Convert 8bit image data into RGB based on color palette in Direct2D?

Kiran Satish2-Jul-15 5:27

Kiran Satish

2-Jul-15 5:27

Thanks for that suggestion Pallini, I guess I was not clear enough in my questions about how time critical this operation is. In my current application, I do similarly for not so time critical operation. I am looking for something that can do it automatically for me in Direct2D like in OpenCV using LUT & merge commands rather than going pixel by pixel.

PKNT

Re: How to Convert 8bit image data into RGB based on color palette in Direct2D?

C^hris L^osinger2-Jul-15 3:18

C^hris L^osinger

2-Jul-15 3:18

pseduo-code:

C++

foreach (pixel pixel8 in RGBImage)
COLORREF rgb = RGB(pal[pixel8].red, pal[pixel8].green, pal[pixel8].blue);

image processing toolkits | batch image processing

Timing in C language <time.h>

a random user1-Jul-15 11:00

a random user

1-Jul-15 11:00

Hello there,

in my currect project im trying to communicate between a server and a client codes that I created between 2 computers

with the libraries of winsock2 and windows

In order to sync the send and recv functions I am trying using
the library time.h

but I wish to reset the clock() in a certain area of the code so i could start the count since that point and not since the start of the runtime

*This has nothing to do with my homeworks this is a legeit question*

Re: Timing in C language <time.h>

CPallini1-Jul-15 20:54

CPallini

1-Jul-15 20:54

Quote:
but I wish to reset the clock() in a certain area of the code so i could start the count since that point and not since the start of the runtime

You usually don't do that. Instead, you keep track of your 'zero-time' and subtract it to the current one in order to find out the elapsed interval (You may use difftime[^] for the purpose).

Problem displaying CStatic text item

ForNow30-Jun-15 8:09

30-Jun-15 8:09

Hi.

I am all sorts of issues displaying a text on my dialog so first let me say what's involved
I have a CStatic ptr says
CStatic *mytext
I instintate this say
mytext = new CStatic;
The next few steps im not sure of the order
So now I want to connect this CWnd object to my resource file Id in my DIALOGEX resource says its a CTEXT so I call UpdateData or CDialog::OnInitDialog which does that for me
The DDX_control connects my CTEXT to mytext CWnd object next I do a mytext->SetWindowText however nothing appears within my CDialog
Do first have to do SetWindowText before DDX_control if DDX_control initilizes the CTEXT with what text is in my text then maybe I do
I have tried all sorts of methods including DrawText to display the text whitin the dialog but I get nothing displayed

jeron130-Jun-15 9:56

30-Jun-15 9:56

Can't you just add the CStatic control to the dialog via the resource editor? Then associate a CString variable to it and use UpdateData()?

In your code how did you size the CStatic control? Did you use the Create() method anywhere to give it its size, style, initial text, etc?

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ForNow30-Jun-15 10:11

30-Jun-15 10:11

Hi

I use MoveWindow to size it

I think calling CDialog::OnInitDialog will call UpdateData to connect the resource in my case CTEXT to the CWnd object
After wards in my ::OnInitDialog I use MoveWindow followed by SetWindowText for the control and ShowWindow for both the control and dialog box I then do a return TRUE
However nothing is displayed

jeron130-Jun-15 10:20

30-Jun-15 10:20

Call the create Create() method with initial values and see if anything displays.

ForNow30-Jun-15 10:38

30-Jun-15 10:38

With the text as the first parm. Ok I'm at work will try tommorow thanks for your help

jeron130-Jun-15 11:41

30-Jun-15 11:41

I have to ask, are there reasons why you can't use the resource editor to add the CStatic control, as opposed to using ptr = new CStatic?

ForNow30-Jun-15 11:57

30-Jun-15 11:57

I am connecting via Tcp/ip
CAsyncSockets to another computer the information I receive will be displaed in the CStatic

jeron130-Jun-15 12:16

30-Jun-15 12:16

But the dialog and display controls in it don't care where the data comes from. Typically (at least for me), when I build a dialog using the resource editor, I place a static control on the dialog, just like I place edit boxes, list boxes, etc. I then create a variable associated with that static control (typically using a wizard), the variable could be a CString type or a control type. If I use a CString type variable, I use UpdateData(), if I use a control type variable I use SetWindowText() and that's about it. Seems like you might be making it unecessarily more complicated.

ForNow30-Jun-15 12:49