How to draw ruuber band rectangle on live video? - C / C++ / MFC Discussion Boards

Re: doubt in cstring..

David Crow25-Sep-09 3:47

David Crow

25-Sep-09 3:47

Rakesh5 wrote:
CString test = hello;

What is hello? Is it a string literal or an undeclared variable?

Rakesh5 wrote:
if (test.find(CString(abc)) == 0)

find() is not a member of CString. Perhaps you meant Find(). Why the extraneous CString construct?

All that aside, your code snippet works for me.

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Re: doubt in cstring..

Rakesh525-Sep-09 3:53

Rakesh5

25-Sep-09 3:53

Hi David,

hello is just a string literal (for example purpose..) and I meant Find only...

my doubt is :

CString str(test);
CString str1 = L"test";

Are str and str1 same?? if not, how to make it same??

thanks,
rakesh.

Re: doubt in cstring..

David Crow25-Sep-09 3:56

David Crow

25-Sep-09 3:56

Rakesh5 wrote:
Are str and str1 same??

No, they are two separate objects. How would that differ from:

int x = 5;
int y = 5;

Are x and y the same?

Rakesh5 wrote:
if not, how to make it same??

You can't, but you can make them contain the same value.

Re: doubt in cstring..

Rakesh525-Sep-09 4:04

Rakesh5

25-Sep-09 4:04

Hi David,

i think am not communicating properly..

see, my code has like this:

CString str = "hello";

#define test L"hello";

if(str.Find(CString(test)) == 0)
{
--------
------
}
but its not passing this "if" statement.. my doubt is both are having hello only.. but y "if" condition is failing??

Thanks,
rakesh

Re: doubt in cstring..

David Crow25-Sep-09 4:14

David Crow

25-Sep-09 4:14

Rakesh5 wrote:
but its not passing this "if" statement..

Have you stepped into it using the debugger, or are you just looking at the ----- statements to know if the code is correct?

Re: doubt in cstring..

MsmVc25-Sep-09 21:08

MsmVc

25-Sep-09 21:08

i hope it's help you
[code]
CString test = "hello";
CString test=CString(abc);
if (test.Find(test) == 0)
{

}
[/code]

Re: doubt in cstring..

SilimSayo25-Sep-09 5:22

SilimSayo

25-Sep-09 5:22

Try the String.CompareTo method.

How to draw ruuber band rectangle on live video?

$uresh $hanmugam25-Sep-09 2:25

$uresh $hanmugam

25-Sep-09 2:25

Hi,
I'm Developing a live video streaming application in vc++ using DirectX VideoMixingRenderer filter. I can able to draw rubber band rectangle on live video using DirectX SetAlphaBitmap() through my mouse move. if my video frame size(4CIF) is greater than my picture box control size, it's working fine. Suppose, my video frame size(CIF) is less than my picture box control size,
1) only 3 sides of the rectangle can be visible.
2) sometimes 2 sides only can be visible.
3) Above two context has been happen randomly.
Please, somebody help me out from this issue.

Thanx in advance,
Regards
Surez

Re: How to draw ruuber band rectangle on live video?

freakyit25-Sep-09 4:39

freakyit

25-Sep-09 4:39

hi,

how would it be to draw the ruuber band rectangle in the video frame or change the size of the picture box that is fits with the video frame size.

bless..

Re: How to draw ruuber band rectangle on live video?

$uresh $hanmugam28-Sep-09 20:29

$uresh $hanmugam

28-Sep-09 20:29

I have created a bitmap for picture box's DC and draw the rectangle on it. Whenever mouse move, new coordinates has been generated and redraw the rectangle. Finally, attached my custom bitmap into directx frame using SetAlphaBitmap(). The Custom bitmap not originally attached to the video frame, it has been attached when a video frame has ready to visible.

I would like to render different frame size of streams from IP-camera, mean while I would like to maintain my picture box size as static.

datagrid in vc++6

hrishiS25-Sep-09 1:22

hrishiS

25-Sep-09 1:22

Hi to All,

After trying a lot, too I am not able to find a proper solution for my data-grid. Please anyone help me out.
Can anyone please give a small example of using microssoft datagrid 6 in vc++6 mfc. without any database...may be entering data/record from within a loop

i was looking for a kind of datagrid, where by double clicking i can enter a new record.

thanks in advance

-----------------------------
I am a beginner

Re: datagrid in vc++6

chandu00425-Sep-09 2:17

chandu004

25-Sep-09 2:17

for your kind of requirement, MSFlexGrid activeX control seems to be the best one.
just try it out.
but for double click, adding a new record, you need to implement your own logic.
if you are stuck up anywhere,
then i can help you.

--------------------------------------------
Suggestion to the members:
Please prefix your main thread subject with [SOLVED] if it is solved.
thanks.
chandu.

Emulate the context menu key on the keyboard?

Maxwell Chen24-Sep-09 23:23

Maxwell Chen

24-Sep-09 23:23

There is the Context-Menu key on the keyboard. It works as user right-clicking the mouse.

If I have to emulate this key down / up, what message should I send?

Thanks.

Maxwell Chen

Re: Emulate the context menu key on the keyboard?

Iain Clarke, Warrior Programmer25-Sep-09 0:01

Iain Clarke, Warrior Programmer

25-Sep-09 0:01

Well, I don't know the answer to your question.

But I know who does...

Your own PC, and Spy++.

Run (eg), notepad. Run spy++ and monitor messages.

Press the context-menu key. Let go of it. Go look at spy++!

Iain.

I have now moved to Sweden for love (awwww).
If you're in Scandinavia and want an MVP on the payroll (or happy with a remote worker), or need cotract work done, give me a job! http://cv.imcsoft.co.uk/[^]

Re: Emulate the context menu key on the keyboard?

Maxwell Chen25-Sep-09 0:16

Maxwell Chen

25-Sep-09 0:16

Thanks! They are:

WM_KEYDOWN, VK_APPS
WM_KEYUP, VK_APPS

But not working in my code... Sigh | :sigh:

Maxwell Chen

Re: Emulate the context menu key on the keyboard?

Iain Clarke, Warrior Programmer25-Sep-09 0:25

Iain Clarke, Warrior Programmer

25-Sep-09 0:25

An alternative for you is to send the WM_CNTEXTMENU[^] message instead...?

Good luck,

Iain.

add controls in vc6

hrishiS24-Sep-09 22:43

hrishiS

24-Sep-09 22:43

Hi to All,

I need to use the data grid control in vc++6 MFC.
But I cannot see it in my control Box.
Can anyone please tell me how to add it? (may be reference or some settings)

thanks in advance

-----------------------------
I am a beginner

Re: add controls in vc6

Cedric Moonen24-Sep-09 23:08

Cedric Moonen

24-Sep-09 23:08

AFAIK, there's no grid control in the default VC6 controls. You will need to use the MSFlexGrid ActiveX control (import it from the activeX components list).
You can also use Chris Maunders's Grid control[^]

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Re: add controls in vc6 [modified]

hrishiS24-Sep-09 23:30

hrishiS

24-Sep-09 23:30

thanks for your reply..

Could you please tell me, if the user can add rows to the data-grid manually on the grid itself, (same like VB.NET)....That is my requirement actually. So please guide me which data grid control to use for the same purpose

thanks

-----------------------------
I am a beginner

modified on Friday, September 25, 2009 5:39 AM

calc use for open calculator what can i use for open clock from ShellExecute.

Le@rner24-Sep-09 22:03

Le@rner

24-Sep-09 22:03

HI all,

i m using calc.exe to open calculater from shell execute please thell me how can i open calendar or clock.

thanks in advance.

To accomplish great things, we must not only act, but also dream;
not only plan, but also believe.

Re: calc use for open calculator what can i use for open clock from ShellExecute.

David Crow25-Sep-09 3:19

David Crow

25-Sep-09 3:19

"_$h@nky_" wrote:
i m using calc.exe to open calculater from shell execute please thell me how can i open calendar or clock.

I've not seen those executables since Program Manager and the Windows 3.x days.

Re: calc use for open calculator what can i use for open clock from ShellExecute.

Naveen25-Sep-09 5:04

Naveen

25-Sep-09 5:04

using shell execute, open "timedate.cpl" Cool | :cool:

nave

[OpenedFileFinder] [My Blog]

Semantics and naming conventions in MFC?

Vaclav_24-Sep-09 19:46

Vaclav_

24-Sep-09 19:46

Not a coding question but on bordeline, I’ll admit.
When I am using simple one row / two columns splitter window should I refer to left / right pane or view?
Same goes for tab view (or actually control) – is it a tab or view or page?
Similar dilemma for a tree view.
I guess what I am asking is – how to name my class so it is descriptive
CCamera or CCameraView or CCameraTab if it is a AVI frame in “splitter tab” ?
Thanks for reading.

Re: Semantics and naming conventions in MFC?

CPallini24-Sep-09 20:55

CPallini

24-Sep-09 20:55

Vaclav_Sal wrote:
When I am using simple one row / two columns splitter window should I refer to left / right pane or view?

I would go with a and b. Roll eyes | :rolleyes:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: Semantics and naming conventions in MFC?

Richard MacCutchan24-Sep-09 22:50

Richard MacCutchan

24-Sep-09 22:50

Vaclav_Sal wrote:
should I refer to left / right pane or view?

When using a splitter window (or a Frame) I always put Views in each pane, so I would give them names such as IndexView, DetailView etc.

With Tab pages I would use Tab or Form as the suffix etc.

The main thing to consider is whether it makes sense to you and, more importantly, whether it would it make sense to someone else who had to maintain your code.

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