How to get the addresses of variables, structures, arrays and functions in VB.net?

Of course, you need a system. Runtime. InteropServices？ Namespace? Marshal? kind

Import? System. Runtime. InteropServices？ Must there be one here?

Public? Class? Form 1

Public? Structure? M Dian

Dim? x？ As? integer

Dim? y？ As? integer

End? structure

Private? Sub？ Button 1_Click(ByVal？ Sender? As? System. Object? ByVal？ e？ As? System. EventArgs)？ Handle? Button 1. click

Dim? Me? As? Integer? =? 50

Dim? ai()？ As? Integer? =? { 1,? 2,? 3,? 4,? 5}

Dim? Pi? As? IntPtr？ =? GCHandle。 Alloc(i，GCHandleType。 Nailed). AddrOfPinnedObject()？ Get a pointer to an integer variable?

Dim? Pie? As? IntPtr？ =? GCHandle。 Alloc(ai，GCHandleType。 Nailed). AddrOfPinnedObject()？ Gets a pointer to the first address of an integer array.

MsgBox (marshaling. ReadInt32(pi，？ 0))? Read back the value of the pointer to an integer variable.

MsgBox (marshaling. ReadInt32(pai，？ 0? *? 4))? Reads back the first element of the array.

MsgBox (marshaling. ReadInt32(pai，？ 1? *? 4))? Reads back the second element of the array.

MsgBox (marshaling. ReadInt32(pai，？ 2? *? 4))? Reads back the third element of the array.

-here's the structure.

Dim? m_p？ As? New? M Dian

m_p.x？ =? 100

m_p.y？ =? 50

Dim? pm_p？ As? IntPtr？ =? GCHandle。 Alloc(m_p，？ GCHandleType。 Nailed). AddrOfPinnedObject()？ Get the structure header address pointer?

MsgBox (marshaling. ReadInt32(pm_p，？ 0? *? 4))? Reads back the first value of the structure.

MsgBox (marshaling. ReadInt32(pm_p，？ 1? *? 4))? Reads back the second value of the structure.

End? submarine

End? classes