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Article #17322: Using Visual Basic arrays in Delphi

 Question and Answer Database

FAQ2322D.txt - Using Visual Basic arrays in Delphi

Category   :Miscellaneous
Platform   :All-32Bit
Product    :

Question:
How do I pass arrays from VB to Delphi?

Answer:
Arrays can be passed as variants:

VB module code:
Attribute VB_Name = "Module1"
Declare Function TestMin Lib "c:\windows\system\NoelSArr" 
   (Nums As Variant) As Integer

VB form code:
Dim A As Variant
Private Sub Command1_Click()
  A = Array(4, 3)
  MsgBox (TestMin(A))
End Sub

Delphi DLL code:
library NoelSArray;
.
.
function TestMin(const Nums: Variant): integer; export; stdcall;
var
 p1: Variant;
begin
 p1 := VarArrayCreate([0, 1], VT_I4);
 p1:= Nums;
  if (p1[0] < p1[1]) then
   result:= p1[0]
 else
   Result:= p1[1];
end;

4/2/99 12:11:27 PM
 

Last Modified: 01-SEP-99