Copies the contents of a managed string to a block of memory allocated from the unmanaged COM task allocator.
Syntax
Parameters
- s
Returns
The allocated memory block, or 0 if s is null.
Remarks
Marshal.StringToCoTaskMemAuto(string) is useful for custom marshaling or for use when mixing managed and unmanaged code. Because this method allocates the unmanaged memory required for a string, always free the memory by calling Marshal.FreeCoTaskMem(IntPtr). This method provides the opposite functionality of Marshal.PtrToStringAuto(IntPtr, int).
The characters of the string are copied as either ANSI or Unicode characters, depending on the operating system where the code is executing. On Windows 98, the characters are copied as ANSI characters. On Windows NT 4.0, Windows 2000, Windows XP, and the Windows Server 2003 family, the characters are copied as Unicode characters.
Requirements
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0