Paradox Third Party Software, DLLs, and Controls Topic

hello, im using Microsoft XML Core Services (MSXML) to parse and create XML-documents. when i call certain methods of the oleAuto-objects, Paradox crashes when reaching the endMethod statement, (the code is in the pushButton event of a button). That brought me to the conclusion, that the problem could be the "releasing" of oleAuto-variables. so i´ve put the variable-declarations to the form. if i debug the code, the, GPF doesn´t appear at the endMethod of the Button anymore, but still occurs when exiting the program. So i might be right that the problem is where it comes to release variables.  Explicit close() orders of the OLE-objects do not solve the problem. Anyone got an idea? I really need that MSXML to work :-( Other MSXML-Methods work very well, like searching XML-files via XPath for specific elements etc. . here comes the code and the xml-files., the code validates the xml-file against the xml-schemafile, (code and xml-files are from the microsoft ...

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Howdy All, My HeadAche is that I CANNOT locate a (Genuine) Copy of Paradox V9.0!! If anyone can Help With a Genuine Copy, I would be happy to Puchase Same (Manuals Incld) for a reasonable Price. Trying to find the above is like trying to find a needle in a haystack.. NOT that I'm overly SURPRISED. ANYWAY if U Can Help, Please email me direct on gbash@optusnet.com.au with Words Paradox v9 included in the Subject!! thks PSS: Since Posting  2 day agao I HAVE NOW acquired Corel Paradox 9.0 - TKS ANYWAY!

Has anyone used this form filler with Paradox/OPAL?  With success?  If so, any pointers?  Any other PDF form filler one can use programmatically?, Phil,

Has anyone else tried this software?I've heard previous versions recommended many times, but I just got the current version (6.0) and I'm having a _lot_ of issues with it.I've sent an email to them about it - waiting for a response.I'd be happy to provide specifics of the issues if it would be helpful. 

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Does anybody remember a version of Paradox that was shipped with a synchronisation utility?  The utily was a third party app that would sync a local and remote database so changes in data on one would updated to the other.  I am developing an application that would be deployed on laptops and these would sync with a central database as and when convienient - maybe someone knows a better way to to do this?  We have abandoned terminal services, i haven't even attempted a paraodx web app...

Hi !, There is a way to configure, open and read serial port using OPAL?, I must send/receive commands to an Electronic Cash Register., Many thanks for your reply. Dumitrescu S.

I have an ActiveX component that I wrote in VB to access a BarCode Label product. When I run the following code it registers on some machines, but others I get an error that says component can not self register. Any ideas:, , if RegisterControl(stringVar) then, msgInfo("Congrats", "Control Registered"), else, errorShow(), endIF, , This is for a Paradox 9 app with the latest patch on Win 9x machines.

Hi, , , trying to setup references to DLL file. The DLL has several methods, which i have example code for for Access, VB, ASP not Paradox (surprisingly!) Most of the methods work fine for eg,, , Uses afdnn32, GetPostcode(nnRec CPTR, RecNo CLONG, nnFlags CLONG) CLONG, endUses, , this method in Access looks like this,, Declare Function GetPostcode Lib "afdnn32.dll" (nnRec As nnRecType, ByVal recNo As Long, ByVal nnFlags As Long) As Long, , Not a problem, the problem is the following method, which in MS Access looks like this..., , Declare Function FastFindGetFirst Lib "afdnnfind.dll" (ByVal str As String, ByVal oldpcode As String, ByVal pCode As String, addrNo As Long) As Long, , In Paradox I have,, FastFindGetFirst(str CPTR, oldPcode CPTR, pcode CPTR, addrNo CLONG) CLONG, , the problem with the FastFindGetFirst method in MS Access is the addrNo data type is not declared 'ByVal', my problem is in Paradox I can only seem to declare addrNo as a variable and not a pointer which i think it ...

Has anyone toyed with a data aware TreeView component activx or ocx Dll etc, that provides functionality similar to the DBTreeView that is in the WllToWll/InfoPower sets for Delphi. Is the List object provided with Paradox 9/10 the answer if so where is the documentation to get indented lists that behave with multiple one to many table structures that would form a drillable outline., , If anyone has please let me know. This is a key missing object in an otherwise pwerfull toolset. , (as I am new to the forum my background in Paradox goes back to building EIS systems in Pardox 3.5 back in 1991 to developement of Enterprise valuation and activity forecasting systems for lage Australian Companies today using Paradox10 and Delphi7)

I have problems in using DLL written in Delphi., A friend programmed a DLL in Delphi , containing function with parameters:, , RToMR(AURL,ACert,AReq,AResp:PChar;ARespLen:DWORD):DWORD;, , In my script the function is declared in uses block:, Uses rd2mr, RToMR(AURL CPTR, ACert CPTR, AReq CPTR, var AResp CPTR,var ARespLen CLONG ) CLONG, endUses, , In Paradox 9.0 script the function is called:, , retc = RedarstvoToMRVL(AURL,ACert,AReq,AResp,ARespLen), , where variables are declared as follows:, var, AURL String, ACert String, AReq String, AResp String, ARespLen LongInt, retc LongInt, endvar, , AURL, ACert and Areq are filled with values, AResp is filled with number of blanks and ARespLen is the length of AResp., , Still the error occurs:, "Access violation at address 03513577 in module 'rd2mr.dll'. Read of address 00000064" - this is the area of AResp, which I filled with 100 asterisks., , I suppose there's an error in passing parameters - I intended to pass first three parameters by value...

Boy, oh boy, I am having a lot of trouble with this dll business. I've worked a little bit with it in the past regarding Windows user32.dll, but basically I found some code, copied it, pastied it, and poof it worked. Now I'm trying to make heads or tails of it from the small documentation in Paradox 10 and the specs I have regarding the dll file but I just get one GPV after another. Can someone help?, , I'm trying to create the uses block with the following specs (specs from VC Sample Code):, , Boca.dll, , Routine Name: proc_address, Calling Parameters: HINSTANCE hinstLib, Return Value: Integer, , Routine Name: Find_USB_Printers, Calling Parameters: None, Return Value: None, , Routine Name: Locate_Device, Calling Parameters: BOOL fUseDefault, int Index, Return Value: USB_HANDLE hUSB , , Routine Name: Read_Data, Calling Parameters: USB_HANDLE hUSB, PVOID pBuffer, DWORD dwSize, int Pipe, Return Value: None, , Routine Name: Write_Data, Calling Parameters: USB_HANDLE hUSB, PV...

Anyone had any experience with General Protection Faults when calling a Windows DLL?, , I'm working on Paradox 10 on Windows XP and I'm using the following command:, , ExitWindowsEx(0,0), , It works in conjuction with the form uses:, , "user32.dll", ExitWindowsEx(uflags clong, dw clong), , This code works just fine in some of my forms but others seems to be problematic. On the problem forms, when the ExitWindowsEx(0,0) line is executed it consistantly produces an Unexpected General Protection Violation Error...lovely. , , I just can't figure out how to fix it....any suggestions?, , abp

I need to have access to some system DLLs from Microsoft. In some cases it is possible for example to get the size for a transfer/string buffer by passing first a NULL pointer to the function, later allocating space for that buffer and later call the same function with the address of that buffer., , For the second functionality it is necessary to declare the function in the Uses section with a CPTR argument (instead of CLONG, which allows directly to generate the NULL pointer). By this way every variable is passed by its address. How can I now directly pass a NULL pointer to the function without using an intermediate DLL exporting two different functions covering the two different functionalities by calling the desired function in the original DLL with different arguments?

I just downloaded (twice) the demo version of Prestwood's Paradox Workbench (wb12-beta1.exe)., , Unzipping and invoking setup appear to work normally, and the readme item is added to the NT start menu. But it doesn't seem to hook itself into the Paradox Tools menu item. I have rebooted after installation, to no effect., , Running Paradox 8.00.302 on NT 4.0 w/SP6a., , Any suggestions?

Hi, i┤m trying to use an external dll to control a hardware system, and i can┤t figer out how it works. The problem is that the manufacture only knows how to use c and has no idea what paradox is!, Here┤s the problem:, I should call a dll function in this way:, , pbGetRawImage(OUT void *image), , Description:Gets an image from the sensor.One byte in image corresponds to one pixel from the sensor. A byte value of 0 means a black pixel, 255 means a white., Parameters:[OUT] *image - pointer to where the image is to be stored. This buffer must be of sufficient size, call pbGetRawImageSize() to determinate the correct number of bytes., , OK! How do I make this work in paradox, and how can i make a file whith the image?, , Any help?, Thanks in advance,, Sergio

Hi everyone., , , I've been working on a problem off and on for a while now. Perhaps someone here can help me figure out what's going on. I apologize in advance for this being a little long, but I don't want to skip any details that may be important., , Last summer I made an attempt to migrate a Paradox 7 (32-bit) application to Paradox 9. Everything went smoothly, until I noticed a floating-point parameter passing problem between Paradox 9 and a C++ DLL. Any floating-point values that were passed to a function in the DLL were being received as garbage. I finally had to abort the project and stick with Paradox 7, which had no issues with the DLL., , Recently, I have come back to this task with some more ideas, but every attempt I have taken has failed. I have simplified the code down to the extreme basics in order to isolate the problem. Here is what it looks like:, , [i], C++ code, (C++ Builder 4 - Created new DLL, and added the following test function.), [/i], , [b], extern "C...

Not wishing to be a pain in the.. ummm .. because you are are such busy people, but did you have a chance to look at the couple of problems I sent in regarding the Workbench. Do you want me to send 'em in again?, rt

Sorry for my poor English ...., , I need to use a function into a DLL, the function has as parameter :, a callback function declared in C/C++, int(CALLBACK *func)(long len) int flag), a callback function declared in VB, byval func as long)(byval len as long )as long, , How to convert the type of parameters ?, , How to call the function with a function ?, , I am halted !!!!, , Thanks

Sorry for my poor English ...., , I need to use a function into a DLL, the function has as parameter :, a callback function declared in C/C++, int(CALLBACK *func)(long len) int flag), a callback function declared in VB, byval func as long)(byval len as long )as long, , How to convert the type of parameters ?, , How to call the function with a function ?, , I am halted !!!!, , Thanks, , , ------------------, LD, , [This message has been edited by DELTASOFT (edited March 05, 2001).]

Mike Prestwood, Can I repost the 2 queries I sent a while ago both regarding the workbench. I know I have changed email address's so if you have replied, whoops in advance otherwise .., , 1. A little problem occurs when using the Workbench to view the source code for a query via the Inspector module, the message is -, "Error occurred trying to execute the specified program., #FormData1:mouseExit::0", , 2.This is the more important topic at the moment ... is there any way when, using the data fill option for a table, that the "fill" that is inserted can be made to abide by the various field entry mask/criteria that I have put on the various table fields rather than just swamping all fields with arbitary "fill". I would not mind even if I had to blast the table a few times to fill it up as at least it would also give the data entry masks etc a good workout!, And finally, dare I mention did you ever did get the chance to do anything on the PDE chapter!, Actually I dont know how you do an...

I am new to Paradox 9 and would like use C++ and the BDE to directly import a 20,000 record flat file right into a table. I have two questions, 1st, is this possible (with C++ Builder I assume..) and on a much more basic level, how to I access a C++ compiled DLL? I have started with:, , extern "C" int SomeFunct(void);, , int SomeFunct(), {, return 50;, }, , In the TESTDLL dll which I have in the uses block of the object. It compiles fine but I keep getting the message "Cannot find reference 'SomeFunct' in DLL." It appears to load and find the DLL but can't find the function. I'm currently using MSFT Visual C++ for this simple test. Any help appreciated.

I'm looking to find info on how to work with ActiveX Progress Bars, and for that matter the other ActiveX tools too. I can't seem to find anything. Does someone have any info for me or atleast point me in the right direction?