Call dll from javascript

hai,
i have a dll(VB) in client m/c. i need to call a method in a dll from javascript.
if possible please give some sample code.

http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=calling+a+dll+from+javascript

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Calling Taskflow from javascript

Hi,
Can any one help me on calling taskflow from javascript.
Thanks in advance,
Regards,
Lavanya.

hi Lavanya,
All I did was a simple search and found this
Javascripts and ADF Taskflows
See if this is helpful to you too :)
Regards,
Neha..

Call dll from my dll

I Have a dll file for my attendance machine
and every thing are ok when I call dll from my exe application
I want to create my own dll which my dll connect to attendance dll and get data from it and then insert data to tables
a second question
is there a method for calling my dll through windows batch file or I must create an exe application calling from it

Let me explain a bit what a VFP DLL is for:
You can only build one type of DLL, an OLE COM Server DLL. It'll mainly contain OLEPUBLIC class definitions, which are then usable in other programming languages. In any programming language capable to make use of OLE COM Server classes.
If your project is named mydll.pjx and a prg or vcx contains a class myclass, the final DLL will have the OLE class "mydll.myclass" in it.
This is overhead, if you use this in VFP. If you want to modularize your application, then create several EXE or build as APP. You can DO some.prg IN some.APP or you can create an object o = NEWOBJECT("myclass","myclasslib.vcx","myapp.app")
to refer to a class inside a vcx compiled and build together with other project files into an app file.
But any separation you do complicates the code use. A DLL is only needed, if some other programming language needs to use your VFP code. And that other programming language has to be able to instanciate classes.
You don't need this, even if other programming languages would be involved. You can compile an EXE and that can be run. If needed with parameters. That's typically much simpler and could even be used by DOS batch files either using the DOS start command
or directly your.EXE as man DOS commands also are merely EXE files.
Bye, Olaf.
Olaf Doschke - TMN Systemberatung GmbH http://www.tmn-systemberatung.de

Error while calling applet from Javascript via LiveConnect and WebDriver

Hi all,
I am trying to call applet Java code from Javascript via WebDriver.
Given the following two cases:
- calling a static method: Integer.parseInt("42")- constructing a new object: new String("Hello world")My Javascript code looks like this:
document.appletId.Packages.java.lang.Integer.parseInt("42");
new document.appletId.Packages.java.lang.String("Hello world");When executing this code in Firefox via the Firebug Javascript console everything works fine and I get the expected results. However, when executing this code via the JavascriptExecutor from WebDriver only the call to the static method succeeds, the construction of the new object leads to the following error: "Attempt to call a default method on object with no invokeDefault method."
I don't have any idea what is going wrong here, so any help would be greatly appreciated.
Thanks!

Hello Gerard, Hello Krishna,
-> The liveCache application failed with COM error::
                               40028 Illegal timestamp in rough timegrid
More details about COM error 40028 you will see in TA /n/sapapo/om10
     -> Return code: 40028 -> execute ::
Invalid time stamp in the time buckets profile relation
( om_ts_tgrelinvalidstamp )
   < click on '?' mark >
-> Open an OSS message in accordance with SAP note 167280 if further help
     needed to solve the issue on your system.
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Call DLL from PL-SQL block

Hello all,
I want to call a function located in an external DLL from a PL-SQL block. I execute the followin steps :
1. Create a database library pointing to the external DLL :
create or replace library libstk as 'C:\SUMMIT\libstkdte_s_trade1.dll'
2. Create the definition and the body package :
CREATE OR REPLACE PACKAGE dllcall IS
     FUNCTION s_trade (
          s_in VARCHAR2 )
RETURN VARCHAR2;
PRAGMA RESTRICT_REFERENCES(s_trade, WNDS);
end dllcall;
show errors
CREATE OR REPLACE PACKAGE BODY dllcall IS
FUNCTION s_trade (s_in IN VARCHAR2) RETURN VARCHAR2
IS EXTERNAL
NAME "s_trade"
LIBRARY libstk
PARAMETERS (s_in           STRING,
RETURN STRING);
END dllcall;
show errors
set serveroutput on
3. Start the PL-SQL block calling the external function. And I got the foolowing error :
1 begin
2 dbms_output.put_line ( dllcall.s_trade ( '<Request> ' ||
3 '<CurveId>MYCURVE</CurveId> ' ||
4 '<Mode>02</Mode> ' ||
5 '<ExpCcy>GBP</ExpCcy> ' ||
6 '<AsOfDate>20001023</AsOfDate> ' ||
7 '<Entity>***SUMMIT-XML***</Entity> ' ||
8 '</Request>') );
9* end;
10
11 /
begin
ERROR à la ligne 1 :
ORA-06520: PL/SQL: Error loading external library
ORA-06522: Unable to load DLL
ORA-06512: at "V31.DLLCALL", line 0
ORA-06512: at line 2
The "Read - Execute permissions" of the DLL file was given to "Authentified users" .
What's wrong ?
TIA
PS : NT2K environment, DB 8.1.7
R. Charles Emile

Yes, a RPC was set up.
Listner.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = Server1)(PORT = 1521))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = NMP)(SERVER = Server1)(PIPE = ORAPIPE))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\Oracle\Ora81)
(PROGRAM = extproc)
tnsnames.ora
extproc_connection_data =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(CONNECT_DATA = (SID = PLSExtProc))
Thanks
RCE

Calling Dlls from LabVIEW

LabVIEW Gurus:
I am working with some software engineers who have no experience in LabVIEW. Unfortunately I have little experience in C/C++ to make sense of their inquiry.
Basically we are dealing with “Data Marshalling”. I will call a DLL and issue a command (string) and get back a 2-D array and an integer. So far so good.
The C/C++ programmer requested that I provide them with a pointer/memory address in which they will store data, so I can read it once the dll returns the array and integer. I browsed through the example online http://decibel.ni.com/content/docs/DOC-1690 and thought that if I wanted to read from the dll, the process is a simple as calling the appropriate function and configure the parameter (no pointers needed).
So, is there a specific way that they need to write the C/C++ code to be used in LabVIEW? Or what else to I have to take into consideration?
Thank you,
Santiago

That example is pretty simplistic as it only deals with integers. In this case no pointers are required since everything is returned by value. When you're dealing with arrays, however, you need to deal with pointers. If you open the Example Finder (Help -> Find Examples) and search for "dll" you will see the "Call DLL" example. That contains many examples of how to call DLL functions with a wide variety of datatypes. I strongly suggest looking at that example. There is also a chapter in the LabVIEW Help on calling DLLs (Fundamentals -> Calling Code Written in Text-Based Progamming Language).
You have 2 things to consider:
You're dealing with arrays - this means you typically need to pre-allocate the memory in LabVIEW, and it sounds like that's what the DLL expects you to do. This amounts to using the Initialize Array function to create your 2D array of the appropriate size and datatype.
You may be dealing with a C++ DLL. LabVIEW can only interface to C DLLs. This doesn't mean that you can't create a DLL in C++, but it does mean that the C++ programmers need to add an extern "C" modifier to the function calls, otherwise you get name mangling, and LabVIEW won't be able to call the DLL. The DLL programmers should know what that means.

Call DLL from pl/sql

Hi Every one
I have to call one microssoft dll from the pl/sql using form .
How can I do it.
Prashant

That likely means that the DLL call failed.
Some basics.
A DLL exposes an interface where it lists the names of the proc/func exposed (together with a number/ordinal for each).
The Win32 LoadLibrary() call is used to load a DLL. This returns a handle that is then used by subsequent calls to the DLL.
In order to make the actual call, the caller needs to know the address of the procedure/function in the DLL. The GetProcAddress() is the Win32 call I remember using to get the address to call (but I think it has been deprecated since).
Anyway, for the caller to call that proc/func in the DLL, it needs these steps:
- load that library
- get the "address" of that proc/func in the DLL
- make the call
The DLL is then executed - in the address space of the caller. Yes, the DLL's code segment is loaded once and shared amongst how ever many executables are using that DLL. But the DLL has no data segment - the data segment of the DLL lives in the address space of the caller.
Should the DLL do something dirty/wrong, it can crash the caller by corrupting its address space. Or the DLL call could simply fail, throw an exception and terminate unexpectedly.
This is the basics of the a DLL call - and also why Oracle wants to run that DLL call externally using the EXTPROC interface, so as not to risk that DLL compromising the memory space of the Oracle server process.
This makes it a tad more complex now as the Oracle server process makes a call to EXTPROC (an IPC/RPC call) - and the EXTPROC process makes the DLL call (as described above).
If that EXTPROC process crashes, the call that the Oracle server process made also terminates unexpectedly.
Why can the EXTPROC process crash? Well, there are more meaningful errors returned when the DLL fails to load in my experience. So I expect that your DLL was found and that the EXTPROC process did a successful LoadLibrary() call - and even made a successful GetProcAdress() (or whatever call).
But when the actual call to the DLL func/proc was made, an error resulted (incorrect parameter passing, invalid data types being passed, invalid memory being referenced, etc).
This error caused a fatal error and terminated the EXTPROC process. No meaningful error was therefore returned to the Oracle server process - so it throws the exception "lost RPC connection to external process".
Hope this was not too technical and you got the gist of it.

Call servlet from javascript

Hi,
In my web application , i must call a servlet from javascript.
At present i am calling the servlet by using the following syntax:
document.location.href ="sample?startTime="startTime+"&endTime="+Time;+*
The above syntax is working fine, but the problem is ,a new page is created whenever a request is made.
Is there any way to call the servlet without creating any new page.
kindly provide me an alternative, it will be of great help for me.

Is there any way to call the servlet without creating any new page.Ajax. Or load it in a hidden (not visible) iFrame.

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Hi,
I would like to use the fuctionality of a DLL, developed in VB. How I can call the existing methods of a DLL from forms6i.
Thanks.....
Bye
vhareesh
null

Hi,
I would like to use the fuctionality of a DLL, developed in VB. How I can call the existing methods of a DLL from forms6i.
Thanks.....
Bye
vhareesh
null

Can we call webserrvice from javascript code?

Hi Gurus,
Can we call webservice in "Javascript" code?
Any pointers, samples?
Appreciate your time.
Thanks

Hello,
Yes you can, and we have in OracleAS 10gR3 create javascript for you.
Take a look to the following:
1- deploy a Web Services in OracleAS 10g R3 (10.1.3)
2- go to the test page
3- Click on the Javascript Stub page
This utility creates a javascript linbray allowing Ajax calls to SOAP based Web Services:
- create SOAP request from simple Javascript objects
- create an XMLHttpRequest object to call synchronously or asynchronously
- get back the response from and deserialize the SOAP object to Javascript
Regards
Tugdual Grall

Call dll from plsql

Hi
I am trying to connect an external program(DLL) from pl/sql.
for the practice i trying to call "GetComputerName" from kernel32.dll.
i made the following step
1. Creating a library .
2. Creating a package .
3. Set the listener.ora
4. Set the tnsnames.ora.
After solving the problame with the settings of the listener.ora
I testing the function , it run with no error but return 'null' .
I thing the problems is with the "parameter"
I do not know of haw to send them .
----my pak-------------------------------
CREATE OR REPLACE Package Body K32 As
Function GetComputerNameK(lpBuffer out varchar2,nSize in out long )Return long Is
External
Library Sys.Kernel32 Name "GetComputerNameW"
Language c
          WITH CONTEXT
PARAMETERS (
CONTEXT,
--lpBuffer STRING,
          lpBuffer BY REFERENCE,
          nSize BY REFERENCE,
          --nSize INDICATOR short,*/
          RETURN INDICATOR--,
     /*     RETURN short */);
End K32;

Let me explain a bit what a VFP DLL is for:
You can only build one type of DLL, an OLE COM Server DLL. It'll mainly contain OLEPUBLIC class definitions, which are then usable in other programming languages. In any programming language capable to make use of OLE COM Server classes.
If your project is named mydll.pjx and a prg or vcx contains a class myclass, the final DLL will have the OLE class "mydll.myclass" in it.
This is overhead, if you use this in VFP. If you want to modularize your application, then create several EXE or build as APP. You can DO some.prg IN some.APP or you can create an object o = NEWOBJECT("myclass","myclasslib.vcx","myapp.app")
to refer to a class inside a vcx compiled and build together with other project files into an app file.
But any separation you do complicates the code use. A DLL is only needed, if some other programming language needs to use your VFP code. And that other programming language has to be able to instanciate classes.
You don't need this, even if other programming languages would be involved. You can compile an EXE and that can be run. If needed with parameters. That's typically much simpler and could even be used by DOS batch files either using the DOS start command
or directly your.EXE as man DOS commands also are merely EXE files.
Bye, Olaf.
Olaf Doschke - TMN Systemberatung GmbH http://www.tmn-systemberatung.de

How to call dll from Java

Hi everybody,
I am trying to call a dll from my java application. Pls tell me how to do it, I seached and found JNI. Is it true
pls help me and send me some examples
Thank you and have a nice day

java_and_me wrote:
I am trying to call a dll from my java application. Pls tell me how to do it, I seached and found JNI. Is it trueYes, it is true. JNI is the way to go. You'll probably have to write some C code on your own as well, as the DLL is unlikely to be in the format expected by Java already.
pls help me and send me some examplesOf course. [Here you are|http://www.lmgtfy.com/?q=JNI+tutorial].

(Its Urgent) Calling ActionScript from Javascript

Hi, How to call ActionScript files from JavaScript ??? Can anyone Explain it
with a Simple Example?? If yes,then please let me know ASAP. Thank you

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/external/External Interface.html
there are at least 100 examples out there google is your best friend.

The problem about call dll from VB....

Dear All.
I have a device and VB dll file.I want to use labview to call dll.But Labview show "An Exception occurred within the external code ..."
Below is to call this dll details.
1、FindHardware：
Call it at beginning when load program first, it can let program auto detect printer port address and model of dso scope.
parament
winversion：
winversion = 2 "Windows NT,XP"
UIP: open UIP(2048) array
UCP:open UCP(1023, 1023 + 11, 6) array
return：
board_model：
dso2902_128 = 27
Then is my program
Could somebody tell me what's wrong?
Attachment file is this dll.
http://us.f1.yahoofs.com/bc/500cf3ac/bc/dll/dll.rar?bfd1QSDBkHPgKI9c
Thanks.
由 Samyang 在 10-09-2005 07:14 AM 上編輯的訊息

I can't say I understand the documentation snippet you provides, and I also can't access the DLL, but here are a couple things...
1. I doubt very highly that a VB DLL is built with the C calling convension. I believe you should try the stdcall instead.
2. You have the winversion being passed by pointer, but the docs make it look like a regular integer. Is that correct?
3. Your board model is being passed by value, but it is listed as a return value in the docs. That would indicate an actual return value or a parameter passed by reference.
My guess is that one or more of the above is causing the stack to get corrupted or an invalid pointer to be accessed and that is generating the error. Is there anyway to see the document (pdf or webpage)?
Brian Tyler
http://detritus.blogs.com/lycangeek

CALL dll FROM form 6i

Hi I have to call a dll which returns some message by accepting a file name as input.
The plateform is Oracle form 6i deployed on oracle AS , and Oracle 8i DB as backend.
Kindly suggest , what can be best startegy-
call dll using form 6i in client server .
call dll using 3 tier deployement.
or make an ASP or JSP application
Please suggest.
Prashant

Calling DLL using form 6i
Regards,

Call dll from javascript

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