twsapi: New File: VB Qcharts sample project. Includes login, and sample chart.

Christian Czirnich

Scott,
thank's for your example, which will be of great help.
I had some problems to connect to Quote.com until i updated the ContinuumX.ocx file to a more recent one. I have the file attached for everyone to try, if the older one does not work. Replace Scott's version with this one and the project should work.
Best regards,

croc

* REPLY SEPARATOR  *

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On 07/10/2002 at 21:03 marinindextrader wrote:

Qcharts users wishing to integrate Qcharts data into their IB TWS
application, their is a new file in the files section. The project is
module oriented to afford portability. Much of the module work could
be accomplished in the direct Qcharts calls, but I set it up to keep
your main form clear of superfluous code. All the work is pushed out
to the module.

If you are not a Qcharts user, this Zip will be of no interest.

Title Name: QchartsExample.Zip
Link: 

Zip Pack Includes: Entire sample project, Exe file, and extensive but
dated documentation, and the Qcharts OCX.

Let me know if you have OCX issues. The OCX normally ports with
Qcharts and QLink, and gets deposited either in the Qcharts
directory, or the Program Files/Common Files/Qcharts directory. If
you have issues check these locations first. Downloading QLink and
installing it usually registers the OCX properley. Remember, it isn't
enough to have the OCX, it needs to be registered with the system
registry in order for the IDE to see it in the components directory.

The project should port with the OCX on form, but I have included a
copy of the OCX for those having issues AND savy enough to do a
manual registration.

Again, an install of QLink should set things in order in terms of OCX.

Let me know if you have issues; I would be interested in feed back.

Scott
Owner



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marinindextrader

#409

Kewl Croc...

I had fun making it...and there is much to learn regarding the 
Qcharts API and its data thread events...I hope if nothing else it 
sparks some interest and enthusiasim about integrating secondary data 
sources into the TWS API...after all...IB is a broker...not a data 
vendor...

If one is to develope a fully fleshed application, it would seem to 
me that an ancillary data feed is requisite...

Just another rabbit hole to explore....much to learn their is

Scott



--- In twsapi@y..., "Christian Czirnich" <crocodile_1964@g...> wrote:
Scott,
thank's for your example, which will be of great help.
I had some problems to connect to Quote.com until i updated the ContinuumX.ocx file to a more recent one. I have the file attached 
for everyone to try, if the older one does not work. Replace Scott's 
version with this one and the project should work. 
Best regards,

croc

* REPLY SEPARATOR  *

On 07/10/2002 at 21:03 marinindextrader wrote:

Qcharts users wishing to integrate Qcharts data into their IB TWS 
application, their is a new file in the files section. The project is 
module oriented to afford portability. Much of the module work could 
be accomplished in the direct Qcharts calls, but I set it up to keep 
your main form clear of superfluous code. All the work is pushed out 
to the module. 

If you are not a Qcharts user, this Zip will be of no interest.  

Title Name: QchartsExample.Zip
Link:  

Zip Pack Includes: Entire sample project, Exe file, and extensive but 
dated documentation, and the Qcharts OCX. 

Let me know if you have OCX issues. The OCX normally ports with 
Qcharts and QLink, and gets deposited either in the Qcharts 
directory, or the Program Files/Common Files/Qcharts directory. If 
you have issues check these locations first. Downloading QLink and 
installing it usually registers the OCX properley. Remember, it isn't 
enough to have the OCX, it needs to be registered with the system 
registry in order for the IDE to see it in the components directory.  

The project should port with the OCX on form, but I have included a 
copy of the OCX for those having issues AND savy enough to do a 
manual registration.

Again, an install of QLink should set things in order in terms of OCX.

Let me know if you have issues; I would be interested in feed back. 

Scott
Owner 



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marinindextrader

#410

Here is the key event sequence in the chart code:

Private Sub TRecordSet1_DataChange(ByVal nType As Long, ByVal nParam1 
As Long, ByVal nParam2 As Long)
   Picture1.Refresh
End Sub

'Refresh invokes _Paint

Private Sub Picture1_Paint()
   Call PicTradeReDraw
End Sub

This code fires on a sales event(irrespective wether price AND size 
change). _DataChange calls Picture1.Refresh, and the _Paint event 
fires. The Paint event precipitates out of the .Refresh call. 

Assuming a viable symbol and interval were entered, and in essence 
ahead of this, an interval specific serverbased recordset is 
opened..and the live up front interval is appended dynamically and 
tracked on the client side.

In essence, the chart is painted from the semi-static, near term, 
server sided recordset as returned in FieldArray. You have to deal 
with the upfront interval dynamically. 

The FieldArray dimension is controlled in this line of code:

If .TRecordSet1.Init(100, 0) > 1 Then .Picture1.Refresh

In this case we have a 100 item RecordSet.....

..... 

I am just scraping the surface....but the dynamics seem pretty 
straight forward ...

Scott 


--- In twsapi@y..., "Christian Czirnich" <crocodile_1964@g...> wrote:
Scott,
thank's for your example, which will be of great help.
I had some problems to connect to Quote.com until i updated the ContinuumX.ocx file to a more recent one. I have the file attached 
for everyone to try, if the older one does not work. Replace Scott's 
version with this one and the project should work. 
Best regards,

croc

* REPLY SEPARATOR  *

On 07/10/2002 at 21:03 marinindextrader wrote:

Qcharts users wishing to integrate Qcharts data into their IB TWS 
application, their is a new file in the files section. The project is 
module oriented to afford portability. Much of the module work could 
be accomplished in the direct Qcharts calls, but I set it up to keep 
your main form clear of superfluous code. All the work is pushed out 
to the module. 

If you are not a Qcharts user, this Zip will be of no interest.  

Title Name: QchartsExample.Zip
Link:  

Zip Pack Includes: Entire sample project, Exe file, and extensive but 
dated documentation, and the Qcharts OCX. 

Let me know if you have OCX issues. The OCX normally ports with 
Qcharts and QLink, and gets deposited either in the Qcharts 
directory, or the Program Files/Common Files/Qcharts directory. If 
you have issues check these locations first. Downloading QLink and 
installing it usually registers the OCX properley. Remember, it isn't 
enough to have the OCX, it needs to be registered with the system 
registry in order for the IDE to see it in the components directory.  

The project should port with the OCX on form, but I have included a 
copy of the OCX for those having issues AND savy enough to do a 
manual registration.

Again, an install of QLink should set things in order in terms of OCX.

Let me know if you have issues; I would be interested in feed back. 

Scott
Owner 



To unsubscribe from this group, send an email to:
twsapi-unsubscribe@y...

 

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twsapi: New File: VB Qcharts sample project. Includes login, and sample chart.