Passing a Private UDT to a Public Function contained within another form

Hello all,

I would like to know how would I pass a private UDT delcared within form1 to a public member of another form? I have been playing around with the CopyMemory and VarPtr funtions, but I can only get it to work paritially. Below is a part of the code..

Globals.Bas


option Explicit

Const CAPITEXTLEN = 25

Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst as Any, _
pSrc as Any, _
byval ByteLen as Long)

public Type MY_STRUCTURE
Param1 as string * CAPITEXTLEN
Param2 as string * CAPITEXTLEN
Param3 as string * CAPITEXTLEN
Param4 as Long
Param5 as Long
End Type






frmForm1.frm


option Explicit

private MyVariable as MY_STRUCTURE

private Sub cmdPassData_Click()

Dim ptrMyVariable as Long

With MyVariable
.Param1 = "String1"
.Param2 = "String2"
.Param3 = "String3"
.Param4 = 12
.Param5 = 18
End With

' CopyMemory ptrMyVariable, MyVariable, 4
frmForm2.mEntryPoint VarPtr(MyVariable)

End Sub





frmForm2.frm

option Explicit

private MyVariabl2 as MY_STRUCTURE

public Sub mEntryPoint(byref ptrPassedVariable as Long)

CopyMemory MyVariabl2, byval ptrPassedVariable, 4

With MyVariabl2
Text1.Text = .Param1
Text2.Text = .Param2
Text3.Text = .Param3
Text4.Text = .Param4
Text5.Text = .Param5
End With

me.Show vbModal

End Sub




I am not sure what I am doing wrong... I think I have the right idea, but I may be going about it the hard way. Any thoughts? Thanks

Mark H.

To pass UDT I never used copymemory. I just added a Class creatable(instancing property of class), and declared there a public UDT. Then I declared my private udt everywhere I needed in my form, but
private thisUDt as myClass.MyUdt
Then I can simply pass it in function and sub, or even store it in a variant variable.
Hope this help

Special thanks to Lothar "the Great" Haensler. Come back soon, you Guru.

Have a look here:
http://codeguru.com/cgi-bin/bbs/wt/s...age=&view=&sb=

Special thanks to Lothar "the Great" Haensler, Tom Archer, Chris Eastwood, Bruno Paris and all the other wonderful people who made and make Codeguru a great place. Come back soon, you Gurus.

just make the UDT as public in .bas module file


HTH

cksiow
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