Can we use LabView controls in VC %3F
Hi,
I was wondering if Gauge and Tank controls from LabView can be used in VC++? We have labview installed in our lab and we use the graphic controls as major part of our software. We have one software that is written in VC++. Is it possible to export the controls from Labview to VC++? I know MStudio has all those controls for VC++, but our lab is not willing to spend money on MStudio alone. Any suggestions?
Thanks
Vijay
In a word, no. The controls are drawn by the LabVIEW application itself. They are not standard Windows controls.
Similar Messages
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How can i use activeX Control in labview?
how can i use activeX Control in labview?
please describe me step by step.
thanks.Well..that was quite helpful..but now I'm encountering certain problems. I've attached the VI I've made.
I don't need sound at the moment so I dropped it. (Although I tried to play it..but all I could hear was a very annoying sound.) Secondly I don't want to display any date or time..so i dropped that property too.
Now when I run this Vi...the webcam turns on, the screen of videocapx pops up..then the webcam light goes off..and another pop up appears saying..labview is not responding..and i have to close it reluctantly.
I haven't placed the stop capture property in this vi. i checked it by placing it too..but that doesn't work.
I would like to notify that my actual task is to acquire image and then compare it with another one already present on my pc. I want you to please help me out..solve my first query then I'll proceed with the latter part.
Attachments:
activexvideocaps.vi 20 KB -
How i can use labview control or indicator in VB or C++
Hi,
I would like to use labview control or indicator in thierd party application like VB or C++ or .net. Please help me, how i can use this?
ThanksYou can't. A LabVIEW control is a LabVIEW internal object that has no direct link to any OS object entity on any platform it runs on. As such other applications would have no means to access that control object or interact with it in any meaningful way.
Instead you should probably look into ComponentWorks from National Instruments. That is a collection of ActiveX (and .Net?) controls similar to the ones you find in LabVIEW, and those can be embedded into Visual Basic or any other development environment that allows embedding ActiveX controls.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions -
I want to use labview controls in VB ? how do i do it
i want to use labview controls in VB ? how do i do it?
The easiest way to do this is to create a LabVIEW DLL and call it from vb. So write a vi in labview with the front panel you want and then compile it into a dll. The only problem with this is that when vb calls the dll nothing else can happen in vb. Hope this helps.
BJD1613
Lead Test Tools Development Engineer
Philips Respironics
Certified LV Architect / Instructor -
Can I use LabVIEW to program a Galil controller, such as the DMC 740?
Can I use LabVIEW to program a Galil controller, such as the DMC 740? need a driver.
vmagui,
I don't know a Galil DMC-740. Do you mean the Galil DMC-1740? In this case you are talking about an ISA bus board and it might be hard to find a PC that provides ISA bus slots and enough power to run an up to date LabVIEW version.
In general LabVIEW is an open platform, so if Galil provides a LabVIEW library or at least a well documented DLL you should be able to use their boards in LabVIEW. You should contact Galil for this information.
If you are really talking about an ISA board you should consider an upgrade to a newer bus technology like PCI. NI also provides a whole range of high quality motion control products that are at least comparable to Galil boards (http://www.ni.com/motion). A good LabVIEW integration for these devices is self-evident and they integrate easily with other NI products like multifunction data acquisition boards, machine vision products and bus interfaces.
Kind regards,
Jochen Klier
National Instruments
Message Edited by Jochen on 07-22-2008 04:37 PM -
I there, my question is quite simple, I would like to know if the "apple remote control" can be used with a mac mini and , if so, it can be used to control also the "logic pro" functions (e.g. record, start, stop etc). Thks a lot, Danilo
Good work, thanks for the report.
-
How can we use TABLE CONTROL in BDC and WORK FLOW of ABAP.
how can we use TABLE CONTROL in BDC and WORK FLOW of ABAP.?
please explain the important questions.How to deal with table control / step loop in BDC
Steploop and table contol is inevitable in certain transactions. When we run BDC for such transactions, we will face the situation: how many visible lines of steploop/tablecontrol are on the screen? Although we can always find certain method to deal with it, such as function code 'NP', 'POPO', considering some extreme situation: there is only one line visible one the screen, our BDC program should display an error message. (See transaction 'ME21', we you resize your screen to let only one row visible, you can not enter mutiple lines on this screen even you use 'NP')
Now with the help of Poonam on sapfans.com developement forum, I find a method with which we can determine the number of visible lines on Transaction Screen from our Calling BDC program. Maybe it is useless to you, but I think it will give your some idea.
Demo ABAP code has two purposes:
1. how to determine number of visible lines and how to calculte page number;
(the 'calpage' routine has been modify to meet general purpose usage)
2. using field symbol in BDC program, please pay special attention to the difference in Static ASSIGN and Dynamic ASSIGN.
Now I begin to describe the step to implement my method:
(I use transaction 'ME21', screen 121 for sample,
the method using is Call Transation Using..)
Step1: go to screen painter to display the screen 121, then we can count the fixed line on this screen, there is 7 lines above the steploop and 2 lines below the steploop, so there are total 9 fixed lines on this screen. This means except these 9 lines, all the other line is for step loop. Then have a look at steploop itselp, one entry of it will occupy two lines.
(Be careful, for table control, the head and the bottom scroll bar will possess another two fixed lines, and there is a maximum number for table line)
Now we have : FixedLine = 9
LoopLine = 2(for table control, LoopLine is always equal to 1)
Step2: go to transaction itself(ME21) to see how it roll page, in ME21, the first line of new page is always occupied by the last line of last page, so it begin with index '02', but in some other case, fisrt line is empty and ready for input.
Now we have: FirstLine = 0
or FirstLine = 1 ( in our case, FirstLine is 1 because the first line of new page is fulfilled)
Step3: write a subroutine calcalculating number of pages
(here, the name of actual parameter is the same as formal parameter)
global data: FixedLine type i, " number of fixed line on a certain screen
LoopLine type i, " the number of lines occupied by one steploop item
FirstLine type i, " possbile value 0 or 1, 0 stand for the first line of new " scrolling screen is empty, otherwise is 1
Dataline type i, " number of items you will use in BDC, using DESCRIBE to get
pageno type i, " you need to scroll screen how many times.
line type i, " number of lines appears on the screen.
index(2) type N, " the screen index for certain item
begin type i, " from parameter of loop
end type i. " to parameter of loop
*in code sample, the DataTable-linindex stands for the table index number of this line
form calpage using FixedLine type i (see step 1)
LoopLine type i (see step 1)
FirstLine type i (see step 2)
DataLine type i ( this is the item number you will enter in transaction)
changing pageno type i (return the number of page, depends on run-time visible line in table control/ Step Loop)
changing line type i.(visible lines one the screen)
data: midd type i,
vline type i, "visible lines
if DataLine eq 0.
Message eXXX.
endif.
vline = ( sy-srows - FixedLine ) div LoopLine.
*for table control, you should compare vline with maximum line of
*table control, then take the small one that is min(vline, maximum)
*here only illustrate step loop
if FirstLine eq 0.
pageno = DataLine div vline.
if pageno eq 0.
pageno = pageno + 1.
endif.
elseif FirstLine eq 1.
pageno = ( DataLine - 1 ) div ( vline - 1 ) + 1.
midd = ( DataLine - 1 ) mod ( vline - 1).
if midd = 0 and DataLine gt 1.
pageno = pageno - 1.
endif.
endif.
line = vline.
endform.
Step4 write a subroutine to calculate the line index for each item.
form calindex using Line type i (visible lines on the screen)
FirstLine type i(see step 2)
LineIndex type i(item index)
changing Index type n. (index on the screen)
if FirstLine = 0.
index = LineIndex mod Line.
if index = '00'.
index = Line.
endif.
elseif FirstLine = 1.
index = LineIndex mod ( Line - 1 ).
if ( index between 1 and 0 ) and LineIndex gt 1.
index = index + Line - 1.
endif.
if Line = 2.
index = index + Line - 1.
endif.
endif.
endform.
Step5 write a subroutine to calculate the loop range.
form calrange using Line type i ( visible lines on the screen)
DataLine type i
FirstLine type i
loopindex like sy-index
changing begin type i
end type i.
If FirstLine = 0.
if loopindex = 1.
begin = 1.
if DataLine <= Line.
end = DataLine.
else.
end = Line.
endif.
elseif loopindex gt 1.
begin = Line * ( loopindex - 1 ) + 1.
end = Line * loopindex.
if end gt DataLine.
end = DataLine.
endif.
endif.
elseif FirstLine = 1.
if loopindex = 1.
begin = 1.
if DataLine <= Line.
end = DataLine.
else.
end = Line.
endif.
elseif loop index gt 1.
begin = ( Line - 1 ) * ( loopindex - 1 ) + 2.
end = ( Line - 1 ) * ( loopindex - 1 ) + Line.
if end gt DataLine.
end = DataLine.
endif.
endif.
endif.
endform.
Step6 using field sysbol in your BDC, for example: in ME21, but you should calculate each item will correponding to which index in steploop/Table Control
form creat_bdc.
field-symbols: <material>, <quan>, <indicator>.
data: name1(14) value 'EKPO-EMATN(XX)',
name2(14) value 'EKPO-MENGE(XX)',
name3(15) value 'RM06E-SELKZ(XX)'.
assign: name1 to <material>,
name2 to <quan>,
name3 to <indicator>.
do pageno times.
if sy-index gt 1
*insert scroll page ok_code"
endif.
perform calrange using Line DataLine FirstLine sy-index
changing begin end.
loop at DataTable from begin to end.
perform calindex using Line FirstLine DataTable-LineIndex changing Index.
name1+11(2) = Index.
name2+11(2) = Index.
name3+12(2) = Index.
perform bdcfield using <material> DataTable-matnr.
perform bdcfield using <quan> DataTable-menge.
perform bdcfield using <indicator> DataTable-indicator.
endloop.
enddo.
An example abap program of handling Table Control during bdc programming.
REPORT zmm_bdcp_purchaseorderkb02
NO STANDARD PAGE HEADING LINE-SIZE 255.
Declaring internal tables *
*-----Declaring line structure
DATA : BEGIN OF it_dummy OCCURS 0,
dummy(255) TYPE c,
END OF it_dummy.
*-----Internal table for line items
DATA : BEGIN OF it_idata OCCURS 0,
ematn(18), "Material Number.
menge(13), "Qyantity.
netpr(11), "Net Price.
werks(4), "Plant.
ebelp(5), "Item Number.
END OF it_idata.
*-----Deep structure for header data and line items
DATA : BEGIN OF it_me21 OCCURS 0,
lifnr(10), "Vendor A/c No.
bsart(4), "A/c Type.
bedat(8), "Date of creation of PO.
ekorg(4), "Purchasing Organisation.
ekgrp(3), "Purchasing Group.
x_data LIKE TABLE OF it_idata,
END OF it_me21.
DATA : x_idata LIKE LINE OF it_idata.
DATA : v_delimit VALUE ','.
DATA : v_indx(3) TYPE n.
DATA : v_fnam(30) TYPE c.
DATA : v_count TYPE n.
DATA : v_ne TYPE i.
DATA : v_ns TYPE i.
*include bdcrecx1.
INCLUDE zmm_incl_purchaseorderkb01.
Search help for file *
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file.
CALL FUNCTION 'F4_FILENAME'
EXPORTING
program_name = syst-cprog
dynpro_number = syst-dynnr
IMPORTING
file_name = p_file.
START-OF-SELECTION.
To upload the data into line structure *
CALL FUNCTION 'WS_UPLOAD'
EXPORTING
filename = p_file
filetype = 'DAT'
TABLES
data_tab = it_dummy.
Processing the data from line structure to internal tables *
REFRESH:it_me21.
CLEAR :it_me21.
LOOP AT it_dummy.
IF it_dummy-dummy+0(01) = 'H'.
v_indx = v_indx + 1.
CLEAR it_idata.
REFRESH it_idata.
CLEAR it_me21-x_data.
REFRESH it_me21-x_data.
SHIFT it_dummy.
SPLIT it_dummy AT v_delimit INTO it_me21-lifnr
it_me21-bsart
it_me21-bedat
it_me21-ekorg
it_me21-ekgrp.
APPEND it_me21.
ELSEIF it_dummy-dummy+0(01) = 'L'.
SHIFT it_dummy.
SPLIT it_dummy AT v_delimit INTO it_idata-ematn
it_idata-menge
it_idata-netpr
it_idata-werks
it_idata-ebelp.
APPEND it_idata TO it_me21-x_data.
MODIFY it_me21 INDEX v_indx.
ENDIF.
ENDLOOP.
To open the group *
PERFORM open_group.
To populate the bdcdata table for header data *
LOOP AT it_me21.
v_count = v_count + 1.
REFRESH it_bdcdata.
PERFORM subr_bdc_table USING: 'X' 'SAPMM06E' '0100',
' ' 'BDC_CURSOR' 'EKKO-LIFNR',
' ' 'BDC_OKCODE' '/00',
' ' 'EKKO-LIFNR' it_me21-lifnr,
' ' 'RM06E-BSART' it_me21-bsart,
' ' 'RM06E-BEDAT' it_me21-bedat,
' ' 'EKKO-EKORG' it_me21-ekorg,
' ' 'EKKO-EKGRP' it_me21-ekgrp,
' ' 'RM06E-LPEIN' 'T'.
PERFORM subr_bdc_table USING: 'X' 'SAPMM06E' '0120',
' ' 'BDC_CURSOR' 'RM06E-EBELP',
' ' 'BDC_OKCODE' '/00'.
MOVE 1 TO v_indx.
*-----To populate the bdcdata table for line item data
LOOP AT it_me21-x_data INTO x_idata.
CONCATENATE 'EKPO-EMATN(' v_indx ')' INTO v_fnam.
PERFORM subr_bdc_table USING ' ' v_fnam x_idata-ematn.
CONCATENATE 'EKPO-MENGE(' v_indx ')' INTO v_fnam.
PERFORM subr_bdc_table USING ' ' v_fnam x_idata-menge.
CONCATENATE 'EKPO-NETPR(' v_indx ')' INTO v_fnam.
PERFORM subr_bdc_table USING ' ' v_fnam x_idata-netpr.
CONCATENATE 'EKPO-WERKS(' v_indx ')' INTO v_fnam.
PERFORM subr_bdc_table USING ' ' v_fnam x_idata-werks.
v_indx = v_indx + 1.
PERFORM subr_bdc_table USING: 'X' 'SAPMM06E' '0120',
' ' 'BDC_CURSOR' 'RM06E-EBELP',
' ' 'BDC_OKCODE' '/00'.
ENDLOOP.
PERFORM subr_bdc_table USING: 'X' 'SAPMM06E' '0120',
' ' 'BDC_CURSOR' 'RM06E-EBELP',
' ' 'BDC_OKCODE' '=BU'.
PERFORM bdc_transaction USING 'ME21'.
ENDLOOP.
PERFORM close_group.
End of selection event *
END-OF-SELECTION.
IF session NE 'X'.
*-----To display the successful records
WRITE :/10 text-001. "Sucess records
WRITE :/10 SY-ULINE(20).
SKIP.
IF it_sucess IS INITIAL.
WRITE :/ text-002.
ELSE.
WRITE :/ text-008, "Total number of Succesful records
35 v_ns.
SKIP.
WRITE:/ text-003, "Vendor Number
17 text-004, "Record number
30 text-005. "Message
ENDIF.
LOOP AT it_sucess.
WRITE:/4 it_sucess-lifnr,
17 it_sucess-tabix CENTERED,
30 it_sucess-sucess_rec.
ENDLOOP.
SKIP.
*-----To display the erroneous records
WRITE:/10 text-006. "Error Records
WRITE:/10 SY-ULINE(17).
SKIP.
IF it_error IS INITIAL.
WRITE:/ text-007. "No error records
ELSE.
WRITE:/ text-009, "Total number of erroneous records
35 v_ne.
SKIP.
WRITE:/ text-003, "Vendor Number
17 text-004, "Record number
30 text-005. "Message
ENDIF.
LOOP AT it_error.
WRITE:/4 it_error-lifnr,
17 it_error-tabix CENTERED,
30 it_error-error_rec.
ENDLOOP.
REFRESH it_sucess.
REFRESH it_error.
ENDIF.
CODE IN INCLUDE.
Include ZMM_INCL_PURCHASEORDERKB01
DATA: it_BDCDATA LIKE BDCDATA OCCURS 0 WITH HEADER LINE.
DATA: it_MESSTAB LIKE BDCMSGCOLL OCCURS 0 WITH HEADER LINE.
DATA: E_GROUP_OPENED.
*-----Internal table to store sucess records
DATA:BEGIN OF it_sucess OCCURS 0,
msgtyp(1) TYPE c,
lifnr LIKE ekko-lifnr,
tabix LIKE sy-tabix,
sucess_rec(125),
END OF it_sucess.
DATA: g_mess(125) type c.
*-----Internal table to store error records
DATA:BEGIN OF it_error OCCURS 0,
msgtyp(1) TYPE c,
lifnr LIKE ekko-lifnr,
tabix LIKE sy-tabix,
error_rec(125),
END OF it_error.
Selection screen
SELECTION-SCREEN BEGIN OF LINE.
PARAMETERS session RADIOBUTTON GROUP ctu. "create session
SELECTION-SCREEN COMMENT 3(20) text-s07 FOR FIELD session.
SELECTION-SCREEN POSITION 45.
PARAMETERS ctu RADIOBUTTON GROUP ctu. "call transaction
SELECTION-SCREEN COMMENT 48(20) text-s08 FOR FIELD ctu.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 3(20) text-s01 FOR FIELD group.
SELECTION-SCREEN POSITION 25.
PARAMETERS group(12). "group name of session
SELECTION-SCREEN COMMENT 48(20) text-s05 FOR FIELD ctumode.
SELECTION-SCREEN POSITION 70.
PARAMETERS ctumode LIKE ctu_params-dismode DEFAULT 'N'.
"A: show all dynpros
"E: show dynpro on error only
"N: do not display dynpro
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 48(20) text-s06 FOR FIELD cupdate.
SELECTION-SCREEN POSITION 70.
PARAMETERS cupdate LIKE ctu_params-updmode DEFAULT 'L'.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 3(20) text-s03 FOR FIELD keep.
SELECTION-SCREEN POSITION 25.
PARAMETERS: keep AS CHECKBOX. "' ' = delete session if finished
"'X' = keep session if finished
SELECTION-SCREEN COMMENT 48(20) text-s09 FOR FIELD e_group.
SELECTION-SCREEN POSITION 70.
PARAMETERS e_group(12). "group name of error-session
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 51(17) text-s03 FOR FIELD e_keep.
SELECTION-SCREEN POSITION 70.
PARAMETERS: e_keep AS CHECKBOX. "' ' = delete session if finished
"'X' = keep session if finished
SELECTION-SCREEN END OF LINE.
PARAMETERS:p_file LIKE rlgrap-filename.
at selection screen *
AT SELECTION-SCREEN.
group and user must be filled for create session
IF SESSION = 'X' AND
GROUP = SPACE. "OR USER = SPACE.
MESSAGE E613(MS).
ENDIF.
create batchinput session *
FORM OPEN_GROUP.
IF SESSION = 'X'.
SKIP.
WRITE: /(20) 'Create group'(I01), GROUP.
SKIP.
*----open batchinput group
CALL FUNCTION 'BDC_OPEN_GROUP'
EXPORTING
CLIENT = SY-MANDT
GROUP = GROUP
USER = sy-uname.
WRITE:/(30) 'BDC_OPEN_GROUP'(I02),
(12) 'returncode:'(I05),
SY-SUBRC.
ENDIF.
ENDFORM. "OPEN_GROUP
end batchinput session *
FORM CLOSE_GROUP.
IF SESSION = 'X'.
*------close batchinput group
CALL FUNCTION 'BDC_CLOSE_GROUP'.
WRITE: /(30) 'BDC_CLOSE_GROUP'(I04),
(12) 'returncode:'(I05),
SY-SUBRC.
ELSE.
IF E_GROUP_OPENED = 'X'.
CALL FUNCTION 'BDC_CLOSE_GROUP'.
WRITE: /.
WRITE: /(30) 'Fehlermappe wurde erzeugt'(I06).
ENDIF.
ENDIF.
ENDFORM. "CLOSE_GROUP
Start new transaction according to parameters *
FORM BDC_TRANSACTION USING TCODE TYPE ANY.
DATA: L_SUBRC LIKE SY-SUBRC.
*------batch input session
IF SESSION = 'X'.
CALL FUNCTION 'BDC_INSERT'
EXPORTING
TCODE = TCODE
TABLES
DYNPROTAB = it_BDCDATA.
WRITE: / 'BDC_INSERT'(I03),
TCODE,
'returncode:'(I05),
SY-SUBRC,
'RECORD:',
SY-INDEX.
ELSE.
REFRESH it_MESSTAB.
CALL TRANSACTION TCODE USING it_BDCDATA
MODE CTUMODE
UPDATE CUPDATE
MESSAGES INTO it_MESSTAB.
L_SUBRC = SY-SUBRC.
WRITE: / 'CALL_TRANSACTION',
TCODE,
'returncode:'(I05),
L_SUBRC,
'RECORD:',
SY-INDEX.
ENDIF.
Message handling for Call Transaction *
perform subr_mess_hand using g_mess.
*-----Erzeugen fehlermappe
IF L_SUBRC <> 0 AND E_GROUP <> SPACE.
IF E_GROUP_OPENED = ' '.
CALL FUNCTION 'BDC_OPEN_GROUP'
EXPORTING
CLIENT = SY-MANDT
GROUP = E_GROUP
USER = sy-uname
KEEP = E_KEEP.
E_GROUP_OPENED = 'X'.
ENDIF.
CALL FUNCTION 'BDC_INSERT'
EXPORTING
TCODE = TCODE
TABLES
DYNPROTAB = it_BDCDATA.
ENDIF.
REFRESH it_BDCDATA.
ENDFORM. "BDC_TRANSACTION
Form subr_bdc_table *
text
-->P_0220 text *
-->P_0221 text *
-->P_0222 text *
FORM subr_bdc_table USING VALUE(P_0220) TYPE ANY
VALUE(P_0221) TYPE ANY
VALUE(P_0222) TYPE ANY.
CLEAR it_bdcdata.
IF P_0220 = ' '.
CLEAR it_bdcdata.
it_bdcdata-fnam = P_0221.
it_bdcdata-fval = P_0222.
APPEND it_bdcdata.
ELSE.
it_bdcdata-dynbegin = P_0220.
it_bdcdata-program = P_0221.
it_bdcdata-dynpro = P_0222.
APPEND it_bdcdata.
ENDIF.
ENDFORM. " subr_bdc_table
Form subr_mess_hand *
text *
-->P_G_MESS text *
FORM subr_mess_hand USING P_G_MESS TYPE ANY.
LOOP AT IT_MESSTAB.
CALL FUNCTION 'FORMAT_MESSAGE'
EXPORTING
ID = it_messtab-msgid
LANG = it_messtab-msgspra
NO = it_messtab-msgnr
v1 = it_messtab-msgv1
v2 = it_messtab-msgv2
IMPORTING
MSG = P_G_MESS
EXCEPTIONS
OTHERS = 0.
CASE it_messtab-msgtyp.
when 'E'.
it_error-error_rec = P_G_MESS.
it_error-lifnr = it_me21-lifnr.
it_error-tabix = v_count.
APPEND IT_ERROR.
when 'S'.
it_sucess-sucess_rec = P_G_MESS.
it_sucess-lifnr = it_me21-lifnr.
it_sucess-tabix = v_count.
APPEND IT_SUCESS.
endcase.
ENDLOOP.
Describe table it_sucess lines v_ns.
Describe table it_error lines v_ne.
ENDFORM. " subr_mess_hand
Also refer
http://sap.ittoolbox.com/groups/technical-functional/sap-dev/bdc-table-control-668404
and
http://www.sap-img.com/abap/bdc-example-using-table-control-in-bdc.htm
Regards,
srinivas
<b>*reward for useful answers*</b> -
I am trying to write a vi that interfaces with a piece of OEM equipment that is set up to talk with a VT 100 terminal. I can't seem to locate the ASCII equivalent string (if there is such a thing) of a CTRL D. Is there a vi that emulates VT 100 commands?
If I recall, CTRL-D is EOF on most ASCII tables.
You'd probably have to use an escape sequence
or if you can use an unsigned 8-bit that might be
easier.
In article <[email protected]>, TLS
wrote:
> How can I use LabVIEW to send the equivalent of a CTRL D (in VT 100
> format) out the serial port of my computer?
>
> I am trying to write a vi that interfaces with a piece of OEM
> equipment that is set up to talk with a VT 100 terminal. I can't seem
> to locate the ASCII equivalent string (if there is such a thing) of a
> CTRL D. Is there a vi that emulates VT 100 commands? -
How can one use Mission Control with two monitors? Please bring Spaces back
How can one use Mission Control with two monitors. With Spaces I could treat each space as a single desktop.
SyBBI use two monitors at work and have no issue. I have my mail set to use Desktop 1 and iTunes set to the second monitor of Desktop 1. I have browsers set to Desktop 2 and Fusion and RDC set to Desktop 3.
Two things that may help you. In System Preferences > Mission Control, disable the setting "Automatically rearrange spaces...". This screwed with assigning applications to certain spaces. And the other thing is don't use full screen on apps that support it. This just makes your second monitor superfluous. -
Can I use LabVIEW to load data directly into system memory from a VI? The serial card I'm using isn't supported by NI nor does VISA recognize it. I'm using a Call Library function to read the data from the card and now I want it to go directly to system memory.
The data is being received at 1Mbps.
ThanksTwo questions:
One, if it's a serial card, then presumably it gives you more serial ports, like COM3, COM4, etc. If so, VISA would see the COM ports, and not the card directly. The drivers for the card should make it so that you see the extra serial ports from the OS. If you don't see the extra COM ports from VISA, then it sounds like the drivers for the card are not installed properly. Do the extra COM ports show up in Device Manager?
Two, you said that you're using a Call Library function to get the data and you want to put it into system memory. Errr.... you just read the data and you have it in memory by definition. Are you saying you need a way to parse the data so it shows up on a graph or something? -
Can I use pan control in stereo track and balance control in mono track ?
it seems that in logic I can only use pan control in mono track and balance control in stereo track .
This is a flaw from the first days of Logic.
There is a "helper" plug in called "direction ....." - I can't remember the full name. Anyway, it gives you more control over stereo tracks. You can narrow the width (left - right) and pan accordingly.
Hope this helps.
HL -
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How can i use labview.tlb to control Labview from an external application?
Hi,
I've been told by a labview engineer that i could use the file
labview.tlb located in the labview install folder to control labview
from an external application (in my case, a C# app). I'm using Labview
6.1 under Windows 2000. This article confirms that:
"ActiveX and LabVIEW"
http://zone.ni.com/devzone/conceptd.nsf/webmain/5401BE584FBAEECE862567C2006D36C7?opendocument
But i've not been able to find out how to use this file to achieve
what i want. I just want to be able to open/close labview, open/close
a vi, start/stop a vi, hide/show a vi from a C# application. The above
web page talks about activex but i really don't see the realtion
between activex and that labview.tlb file.
Is there so
mebody around who knows how to use that file? Why does NI
tell us that it's possible to do what i want to do but doesn't explain
how (or hides this info very well)?
ThanksHi,
> Hi I am fighting a similar problem and so far I found this: Calling
> LabVIEW from C++ Using ActiveX
>
> http://sine.ni.com/apps/we/niepd_web_display.DISPLAY_EPD4?>p_guid=B45EACE3E21356A4E034080020E74861&p_node=DZ52051&p_submitted=N&p_rank=&p>_answer=&p_source=External
Thanks for the link, i actually already found this link before. I've
found yesterday how to use Labview.tlb, just add it to the references
of the project, it was probably too easy for me at that time:-) But
now, i'm still stuck as there is no doc about using the interfaces and
classes of this activex to control labview.
The example given on your link is made is C++ and for some reasons,
the wrapper generated for Labview.tlb when i added it to my c# project
doesn't seem to expose the same
interfaces and classes as the one used
in the C++ example. I therefore can't use the C++ example in C#.
I've tried to do something like:
LabVIEW.ApplicationClass a = new LabVIEW.ApplicationClass();
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I want to use table control to enter data, instead of using textboxes.
So that the user can enter many data at once and just click the save button at the end of the work, only one click.
How can I use the table control at this context?
Thanks.
Deniz.Hi deniz,
go through it:
/people/ravishankar.rajan/blog/2007/02/23/an-easier-way-of-displaying-and-editing-data-using-table-control
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/code%2bto%2bhandle%2bmultiple%2brecords%2bin%2bbdc%2btable%2bcontrol
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