C# Signature:

[DllImport("user32.dll")]
static extern bool ValidateRect(IntPtr hWnd, ref RECT lpRect);

User-Defined Types:

None.

Notes:

In the Win32 API, it is valid to specify a value of "NULL" to lpRect. I am not sure how or if you can specify null structure references using pInvoke in C#/.NET.

Tips & Tricks:

Please add some!

Sample Code:

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Alternative Managed API:

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