C / C++ / MFC

Mazdak10-Jun-02 3:37

10-Jun-02 3:37

Nish when I go to that site download links do not work.Have you test them recently? Frown | :(

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Nish Nishant10-Jun-02 4:12

10-Jun-02 4:12

Mazdak wrote:
Nish when I go to that site download links do not work.Have you test them recently?

Try the 2nd US link :-

http://www.jrsoftware.org/files/site2/is32.exe

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Buy it, read it and admire me Smile | :)

Mazdak10-Jun-02 4:49

10-Jun-02 4:49

I tried all of thwm Nish. It doesn't work. Frown | :(

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Reading bitmap pixel's coordinates and storing in an array

Rene De La Garza10-Jun-02 5:06

Rene De La Garza

10-Jun-02 5:06

Use Inno SetUp with Script Maker and its pretty easy you can find it here
http://www.tafweb.com/scriptmaker.html

ashish ambasta9-Jun-02 19:55

ashish ambasta

9-Jun-02 19:55

We have a paper graph (it is a waveform drawn on a grid) - like the one we used to do in our schools.(Assume that X axis represents t-time and Y axis represents v-voltage).
We take the bitmap image of the same.
Now we want to extract only the waveform out of this (not the grid both are of different colors) and we want to extract this waveform as a series of (X,Y) co-ordinates. This (X,Y) needs to be sampled at every delta-t.
This delta-t needs to be configurable (and should not be limited to screen/monitor's pixel length/width - this is what I meant by digitization independant of pixels).
I want to save this whole waveform into the database as a series of (X,Y)'s instead of storing it as an image

Re: Reading bitmap pixel's coordinates and storing in an array

Paul M Watt9-Jun-02 21:19

Paul M Watt

9-Jun-02 21:19

The best that you are going to be able to do is the pixel resolution level if you are dealing with a bitmap.

What you could do though, and I am not sure how this will affect your data, but you could interpolate between the pixels in order to get a finer resolution, but this will not change your overall values that much. Something that is a little more complicated, but will give you better results is curve fitting. If you are going to do this, I would recommend a tool like MatLab.

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: Reading bitmap pixel's coordinates and storing in an array

ashish ambasta9-Jun-02 22:05

ashish ambasta

9-Jun-02 22:05

The first question is how do I read and store the coordinates of the pixels in the database or array?

Re: Reading bitmap pixel's coordinates and storing in an array

Phil Speller10-Jun-02 3:59

Phil Speller

10-Jun-02 3:59

Am I correct in assuming that you are taking a waveform drawn on gridded paper, scanning it and storing that image in a graphic file of some format?

In any case, you are going to have to examine the contents of that image file or load the image into memory and examine that. You will need to devise an algorithm to pick out pixels of the correct colour. This in itself is going to be an interesting exercise, especially if it is a scanned image - for any single pixel wide vertical slice through that image I would expect more that 1 pixel to be set. You are also going to see a slightly varying range of colours (or even intensities if you've scanned in monochrome). The paper image being scanned may not be perfectly aligned with the scanner (i.e. the scanned image will be slightly rotated). You will have to distinguish between the actual waveform, axis, any other lines/blemishes or artifacts that appear during the scanning process.

Free

Intializing combo box/control in CFormView

aldeba9-Jun-02 19:58

9-Jun-02 19:58

Where do i initialize the combo box/control in a CFormView when i'm using a Doc/View architecture?

I would need to set some default values in the combo box or other controls.

Thanxs!

Mazdak9-Jun-02 20:03

9-Jun-02 20:03

After you define controller for it I think constructor is the correct place for it.

Mazy

"The more I search, the more my need
For you,
The more I bless, the more I bleed
For you."The Outlaw Torn-Metallica

Nish Nishant9-Jun-02 20:33

9-Jun-02 20:33

aldeba wrote:
Where do i initialize the combo box/control in a CFormView when i'm using a Doc/View architecture?

OnInitialUpdate

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Buy it, read it and admire me Smile | :)

aldeba9-Jun-02 21:01

9-Jun-02 21:01

I'm not sure why, but OnInitialUpdate is not being called.
Set a breakpoint there, but there was no break.

My program works such that, when i click on a button the view will change. Thus OnInitialUpdate should be called rite?

The problem is that i used the resource editor to create the FormView and placed all the controls there. And i'm unable to initalize it.
Is it possible that i would need to use

m_myComboBox.Create(......);

and not be dependent on MFC to initalize the window that the combo box belong to?

Thanxs!

Nish Nishant9-Jun-02 21:12

9-Jun-02 21:12

aldeba wrote:
My program works such that, when i click on a button the view will change. Thus OnInitialUpdate should be called rite?

In that case put it inside OnUpdate()

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Buy it, read it and admire me Smile | :)

aldeba9-Jun-02 21:32

9-Jun-02 21:32

Nope, no response for breakpoint in OnUpdate().. Frown | :(

Nish Nishant9-Jun-02 21:30

9-Jun-02 21:30

aldeba wrote:
Nope, no response for breakpoint in OnUpdate()..

When you switch views, call UpdateAllViews()

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Buy it, read it and admire me Smile | :)

aldeba9-Jun-02 22:51

9-Jun-02 22:51

Thanxs that did work.
But still the controls in the FormView still have invalid handle to the window, it seems that the controls were not properly intialized to the correct window when it was replaced.

i used the code from UsefulSplitterWnd,ReplaceView()

CCreateContext context;
BOOL bSetActive;

if ((GetPane(row,col)->IsKindOf(pViewClass))==TRUE)
return FALSE;

// Get pointer to CDocument object so that it can be used in the creation
// process of the new view
CDocument * pDoc= ((CView *)GetPane(row,col))->GetDocument();
CView * pActiveView=GetParentFrame()->GetActiveView();
if (pActiveView==NULL || pActiveView==GetPane(row,col))
bSetActive=TRUE;
else
bSetActive=FALSE;

// set flag so that document will not be deleted when view is destroyed
pDoc->m_bAutoDelete=FALSE;
// Delete existing view
((CView *) GetPane(row,col))->DestroyWindow();
// set flag back to default
pDoc->m_bAutoDelete=TRUE;

// Create new view

context.m_pNewViewClass=pViewClass;
context.m_pCurrentDoc=pDoc;
context.m_pNewDocTemplate=NULL;
context.m_pLastView=NULL;
context.m_pCurrentFrame=NULL;

CreateView(row,col,pViewClass,size, &context);

CView * pNewView= (CView *)GetPane(row,col);

if (bSetActive==TRUE)
GetParentFrame()->SetActiveView(pNewView);

RecalcLayout();
GetPane(row,col)->SendMessage(WM_PAINT);

return TRUE;

Anyone?

Create a customize menu control

Alexandru Savescu10-Jun-02 4:55

Alexandru Savescu

10-Jun-02 4:55

Maybe there is something wrong with your debugger Frown | :(

I know that OnInitialUpdate for CFormView is an equivalent from OnInitDialog in CDialog, so you should be able to break in the code.

Best regards,
Alexandru Savescu

Ado

AllKs9-Jun-02 19:51

AllKs

9-Jun-02 19:51

I try to manipulate datebase in Multithreading .
I do like following.

//con is a _ConnectionPtr var
//cmd is a _CommandPtr var

...
con.BeginTrans();
try
{ ...
cmd.Execute(...);
}
catch(_com_error e)
{
...
con.RollbackTrans();
return ;
}
con.CommitTrans();

but it didn't work .

Re: Ado

Michael P Butler10-Jun-02 1:16

Michael P Butler

10-Jun-02 1:16

What exceptions or error messages did you get? What database are you connecting to?

Michael Smile | :)

"Eureka" is Greek for "This bath is too hot"

Le Van Vinh Dat9-Jun-02 18:43

Le Van Vinh Dat

9-Jun-02 18:43

I want to create a customize menu control (by VC++ 6.0). But I don't know how make it.
My email : levinhdat@vol.vnn.vn
Thanks.

Vinh Dat

Re: Create a customize menu control

Mazdak9-Jun-02 19:17