Marshal.FreeBSTR(IntPtr) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Frees a BSTR
using the COM SysFreeString function.
public:
static void FreeBSTR(IntPtr ptr);
[System.Security.SecurityCritical]
public static void FreeBSTR (IntPtr ptr);
public static void FreeBSTR (IntPtr ptr);
[<System.Security.SecurityCritical>]
static member FreeBSTR : nativeint -> unit
static member FreeBSTR : nativeint -> unit
Public Shared Sub FreeBSTR (ptr As IntPtr)
Parameters
- ptr
-
IntPtr
nativeint
The address of the BSTR to be freed.
- Attributes
Remarks
Like Marshal.FreeCoTaskMem and Marshal.FreeHGlobal, you can use this method to deallocate memory. FreeBSTR calls the COM SysFreeString function, which frees memory allocated by any of the following unmanaged methods: SysAllocString
, SysAllocStringByteLen
, SysAllocStringLen
, SysReAllocString
, SysReAllocStringLen
. You can call unmanaged methods such as these with platform invoke. For details, see Consuming Unmanaged DLL Functions.
Applies to
See also
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈