Recently I encountered this and thought that I may be helpful to pass it
along to this list.
A4D, or any other plugin, component can effectively work with variable in
the host database by calling a host database method that returns a pointer
to that variable in the host database.
A4D script that works!
C_pointer($Ptr)
$Ptr:=MyHostDBGetPointers("vBlob1")
$Ptr->:=[Table]Field
MyDecrypt($Ptr;<>DataVar) //Here vBlob1 is defined in the Host database. My
Decript calls a method in a different component which can access the
variable in the Host database.
-------
A4D script that fails!
C_Blob(vBlob1)
SET BLOB SIZE(vBlob1;0)
vBlob1:=[Table]xField
MyDecrypt(->vBlob1;<>DataVar) //Here vBlob1 is defined in both A4D and the
Host database. My Decript calls a method in a different component which
cannot access the variable in A4D. MyDecrypt will fail because the pointer
is undefined in the subsequently called method in another component.
-------
I hope that helps someone!
David Ringsmuth
(credit to Tony Ringsmuth)
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