Marshal.StringToBSTR Method
Allocates a BSTR Data Type and copies the contents of a managed String into it.
Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)
Parameters
- s
- Type: System.String
The managed string to be copied.
| Exception | Condition |
|---|---|
| OutOfMemoryException | There is insufficient memory available. |
| ArgumentOutOfRangeException | The length for s is out of range. |
StringToBSTR is useful for custom marshaling or when mixing managed and unmanaged code. Because this method allocates the unmanaged memory required for a string, always free the BSTR when finished by calling Marshal.FreeBSTR. This method provides the opposite functionality of Marshal.PtrToStringBSTR.
- SecurityCriticalAttribute
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.
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.
