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CompressedStack.GetCompressedStack Method

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Gets the compressed stack for the current thread.

Namespace:  System.Threading
Assembly:  mscorlib (in mscorlib.dll)
public static CompressedStack GetCompressedStack()

Return Value

Type: System.Threading.CompressedStack
A CompressedStack for the current thread.

A caller in the call chain does not have permission to access unmanaged code.


The request for StrongNameIdentityPermission failed.

If security is enabled, the current compressed stack is returned. If security is disabled, GetCompressedStack returns an empty CompressedStack object.


This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.


This member also makes a link demand for the ECMA public key, which is not a valid cryptographic key but a pseudo key. Within the .NET Framework the link demand for the ECMA pseudo key is automatically converted to a link demand for the Microsoft public key. The security exception is based on the Microsoft public key, not the ECMA pseudo key.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
  • SecurityCriticalAttribute 

    Requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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