Sliding window in serial communications - C / C++ / MFC Discussion Boards

Re: software package

ThatsAlok11-Jan-05 0:34

ThatsAlok

11-Jan-05 0:34

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Converting UNICODE to Str

dSolariuM10-Jan-05 18:44

dSolariuM

10-Jan-05 18:44

Hello ,
I want to give the int code and get string instead.
You know that 65 is A and...
I want this function for unicode keys.
Best Wishes,
Thanks.

I need to do some clean-up on exit, how do I break in?

fklldsvs10-Jan-05 18:22

fklldsvs

10-Jan-05 18:22

I need to do some clean up work before my MFC SDI program exits. How and where can I break into the program to do these things. I need to close a serial port in particular.

Thanks
John

Re: I need to do some clean-up on exit, how do I break in?

Cedric Moonen10-Jan-05 19:50

Cedric Moonen

10-Jan-05 19:50

Where is the handle of your COM port stored ? You can close the port in the destructor of the class that contains this handle for example.

Or you can override the ExitInstance from your CWinApp class and close it there.

Hope this helps

How to change the Color in Scroll Bar in a TextBox?

pubududilena10-Jan-05 18:04

pubududilena

10-Jan-05 18:04

hi all,
I am using Text boxes to MFC Dialog base Applcation.But I can not change the Color Scroll bars which appear with TextBoxes,ListBoxes like that..
How do I do that?
if any one this pl reply me..

Thanks in advance..

How to call javascript in mfc project without CHtmlView?

Anonymous10-Jan-05 17:47

Anonymous

10-Jan-05 17:47

How to call javascript in mfc project without CHtmlView?

I have a source code implement IDispatch by CHtmlView,
but in my project I don't need it.

Thanks!

Re: How to call javascript in mfc project without CHtmlView?

basementman11-Jan-05 5:50

basementman

11-Jan-05 5:50

Sounds like you need to look at Active Script Host.

onwards and upwards...

Sliding window in serial communications

ledallam10-Jan-05 17:16

ledallam

10-Jan-05 17:16

Hi

I am working with Win32 serial communication programming in vc++. I was asked to use sliding window method here, but I am totally new and have no idea about this sliding window consept.

Can anyone please help me by giveing me some information on sliding window and its implementation algorithm and how it can be used in serial communication.

I would be of great help to me if any one can give me some inputs.

Thanks
Madhavi

Re: Sliding window in serial communications

Antony M Kancidrowski11-Jan-05 2:02

Antony M Kancidrowski

11-Jan-05 2:02

Try Here[^]

or

Try using google and insert "sliding window method" Smile | :)

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 Walliams (Little Britain)

CPicture control

Suvendra10-Jan-05 16:14

Suvendra

10-Jan-05 16:14

I have a few Property pages (not Wizard). On one of these I am displaying a picture (Picture Control). The file name is in a global variable. When I initialize it, the picture is displayed correctly. If a file is loaded, I want to show the picture when the user switches between the tabs. Currently when I come back to the tab with picture it is not displaying again. I have written the following code in OnSetActive event -

<br />
if (g_strFileName != "") {<br />
	CDC *dc;<br />
	dc = GetDC();<br />
	CPicture ppic;<br />
	ppic.Load(g_strFileName);<br />
	CRect rc;   GetDlgItem(IDC_RECT_BITMAP)->GetWindowRect(rc);<br />
	ScreenToClient(&rc);<br />
	ppic.Render(dc, rc);<br />
	ReleaseDC(dc);<br />
}<br />

I am also calling Invalidate(TRUE) in InitDialog. Any help would be appreciated.

I have also tried OnPaint/ InitDialog etc. No luck. Thanks.

Re: CPicture control

Abhi Lahare10-Jan-05 17:05

Abhi Lahare

10-Jan-05 17:05

1. Are you returning CPropertyPage::OnSetActive(); in from your OnSetActive() function?

I am also calling Invalidate(TRUE) in InitDialog. Any help would be appreciated.
I have also tried OnPaint/ InitDialog etc. No luck. Thanks.
--> InitDialog() function is only called once and not everytime you navigate through the tab pages. so it won;t help.

Thanks
Abhi Lahare

Re: CPicture control

Anonymous11-Jan-05 3:17

Anonymous

11-Jan-05 3:17

Yes, I am returning return CPropertyPage::OnSetActive();

Re: CPicture control

Anonymous11-Jan-05 5:00

Anonymous

11-Jan-05 5:00

Thanks Abhi for replying to my question Big Grin | :-D

. I somehow found a solution. I made the picture control Transparent and Simple and moved the painting code to OnPaint. Now it seems to be working perfectly fine. Still not sure what the problem was Confused | :confused:

Isn't this supposed to be simple??

Anonymous10-Jan-05 15:21

Anonymous

10-Jan-05 15:21

I have a semi-transparent window. I need all mouse clicks to fall through to proper windows underneath mine. I need to implement a "click-through window"

How do I do this? Confused | :confused:

Re: Isn't this supposed to be simple??

Michael Dunn10-Jan-05 19:30

Michael Dunn

10-Jan-05 19:30

Handle WM_NCHITTEST and return HTTRANSPARENT.

--Mike--
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ | You Are Dumb
Magnae clunes mihi placent, nec possum de hac re mentiri.

Re: Isn't this supposed to be simple??

Anonymous11-Jan-05 8:20

Anonymous

11-Jan-05 8:20

HTTRANSPARENT is usefull when you create a control and you want clickthrough to the parent... However in my case I want clicks to fall through a top level window to the underlying windows.

Re: Isn't this supposed to be simple??

Michael Dunn11-Jan-05 10:52

Michael Dunn

11-Jan-05 10:52

Ah, right you are. Sorry, I never noticed that HTTRANSPARENT only forwards mouse messages to windows in the same thread.

--Mike--
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ | You Are Dumb
Magnae clunes mihi placent, nec possum de hac re mentiri.

Files Manipulation

LiYS10-Jan-05 15:16

LiYS

10-Jan-05 15:16

Hi all:
I'm required to manipulate files order through a listctrl, in that case the file ordering appears after the execution of DOS command "dir" must be the order I've specified in that listctrl. But note it has nothing to do with the command "dir" itself, the ordering after the execution of "dir" has some meanings to me!

I already come up with a solution which is the first file copy to the certain folder is appearing at the top of the list after execute "dir".
But with little testing I found that this solution is unreliable within certain environments. Such as if the destination folder is not clean (has some existing files and folders).

How can I accomplish this with other solutions?
Can anybody provides other alternatives, really stable ones!

Thanks for viewing!

Re: Files Manipulation

Anonymous10-Jan-05 15:27

Anonymous

10-Jan-05 15:27

As far as i know the DOS command dir lists files alphabetically.

Confused | :confused:

Re: Files Manipulation

David Crow11-Jan-05 10:25

David Crow

11-Jan-05 10:25

Anonymous wrote:
As far as i know the DOS command dir lists files alphabetically.

Only on NTFS volumes. With FATxx volumes, they are enumerated in the order in which they were added to the FAT. The default sort order provided by the Dir command supercedes this, however.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

click into view of a website return the content of it

rising_sun_200510-Jan-05 14:02

rising_sun_2005

10-Jan-05 14:02

Hi and Happy New Year!

I want my app running in the background. If I press "SHIFT" + "left mouse button" my application should get the content of the website (not the HTML code oder pic, text only).

I work with keybd_event() to send keys .

keybd_event(VK_CONTROL, 0, 0, 0); // press control
keybd_event('A', 0, 0, 0); // press 'a' to mark all
keybd_event('C', 0, 0, 0); // press 'c' to copy
m_ctrl_OriginalText.SetFocus();
keybd_event('V', 0, 0, 0); // press 'v' to paste

But I have a problem: I don't know how to send the keybd_event() of my app to a website I see. If I click the website my app'll loose the focus and doesn't work.

How can I solve this problem? Confused | :confused:

Thank you for your interest!

Re: click into view of a website return the content of it

Anonymous10-Jan-05 15:24

Anonymous

10-Jan-05 15:24

I dont see why you are trying to use a weird workaround...

You can user COM to properly access every aspect of the web browser (assuming u are talking about internet explorer)

Re: click into view of a website return the content of it

22491711-Jan-05 0:55

224917

11-Jan-05 0:55

rising_sun_2005 wrote:
I want my app running in the background. If I press "SHIFT" + "left mouse button" my application should get the content of the website (not the HTML code oder pic, text only).

You will have to write extensions for all the browsers where you want to accomplish this. If its for Internet Explorer its called writing BHO's (Browser Helper Objects). Search msdn for 'BHO'/'Browser Helper Objects'.

suhredayan
There is no spoon.

Re: click into view of a website return the content of it

rising_sun_200511-Jan-05 4:31

rising_sun_2005

11-Jan-05 4:31

Thank you all!

I'll try making it with this COM 'BHO'/'Browser Helper Objects'.

Have a nice day!

Thank you for your interest!

Overwrite contents of a file

dlarkin7710-Jan-05 9:19

dlarkin77

10-Jan-05 9:19

Hi,

Can anybody suggest a way to completely overwrite the contents of a text file with some new text?

Thanks very much,

dlarkin77 Confused | :confused:

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