GetClassLong (user32)
Last changed: -202.74.138.1

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Summary

C# Signature:

[DllImport("user32.dll")]
static extern uint GetClassLong(IntPtr hWnd, int nIndex);

User-Defined Types:

None.

Notes:

This declaration will crash on 64-bit operating systems.

"GetClassLong" is obsolete and "GetClassLongPtr" should be used instead.

Tips & Tricks:

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Sample Code:

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Alternative Managed API:

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Documentation