Pass Array to DLL

[asawyer13]

I need to pass a couple arrays to a dll.

I need to pass an array of 5 character fields and 4 numbers.

I have the array set up as follows:

Dim TData[1,5] as c
Dim NData[1,5] as n

dim ReturnN as n

TData[1] = "Monday"
TData[2] = "Tuesday"
TData[3] = "Wednesday"
TData[4] = "Thursday"
TData[5] = "Friday"

NData[1] = 500
NData[2] = 1500
NData[3] = 500
NData[4] = 800
NData[5] = 500


' Other code which sets up the Graph stuff

ReturnN = Graph.setData(NData,TData)

It doesn't appear to send the arrays.

Is there somehow to do this?

I looked at declaring a structure, but I don't understand what it would need to look like, and how to pass it.

Thanks for any help,
Alan

[Marcel Kollenaar]

Re: Pass Array to DLL

Alan,

See my wish in the wishlist. Unless Alpha has come with a solution you can't use ActiveX or COM object that passes arrays in the way VB does with the Array() function. Or someone must have found a solution to this.

I can point you to RMChart. You can use it in Xbasic and there are also examples of Xbasic in this thread. The parameters are passed in a loop to the chart. RMChart is build in PowerBasic.

[asawyer13]

Re: Pass Array to DLL

Marcel,
Thanks, I'll take a look at RMChart.

I was sort of able to get around the array passing problem because the ActiveX I was testing (ChartDirector) has an undocumented feature that allows a special delimited string to be passed instead of an array.
So basically I can create Charts and have them saved to disk, and then display them in my form. I can't get the ActiveX component to play with A5, nor can I really get the ActiveX component on TeeChart to play well either. I suspect A5 doesn't really work too well with ActiveX components yet.

I think what I'll end up doing is looking at RMChart, and then deciding whether I want to use RMChart, SimpleChart (upgraded) or ChartDirector (with really nice charts using VBScript to create them, but no mousehover or stuff like that because I can only get the vbscript process to work).

Alan

[asawyer13]

Re: Pass Array to DLL

Marcel,
Do most of the things in RMChart work via the ActiveX control, with the couple of exceptions that you mentioned?
Alan

[Marcel Kollenaar]

Re: Pass Array to DLL

Marcel,
Thanks, I'll take a look at RMChart.

I was sort of able to get around the array passing problem because the ActiveX I was testing (ChartDirector) has an undocumented feature that allows a special delimited string to be passed instead of an array.
So basically I can create Charts and have them saved to disk, and then display them in my form. I can't get the ActiveX component to play with A5, nor can I really get the ActiveX component on TeeChart to play well either. I suspect A5 doesn't really work too well with ActiveX components yet.

I think what I'll end up doing is looking at RMChart, and then deciding whether I want to use RMChart, SimpleChart (upgraded) or ChartDirector (with really nice charts using VBScript to create them, but no mousehover or stuff like that because I can only get the vbscript process to work).

Alan

If you can get around the array problem with the string option and there are no other obstacles than use ChartDirector. But if I read that event doesn't work than drop the ActiveX.

About VBscript. If you create a form and put an IE ActiveX object on it and display a html page were you put the VBscript with the ChartDirector Object maybe that will help. But these are advanced technics. Examples linger around here for other ActiveX and also in the help. If you find examples in the help don't use the example code but look for the example code that got with A5. Look at the examples. Actually you use the IE environment. Maybe the ASP-server example in the help of the ChartDirector can be turned into client types.