ISCardTypeConv::FreeIStreamMemoryPtr method
[The FreeIStreamMemoryPtr method is available for use in the operating systems specified in the Requirements section. It is not available for use in Windows Server 2003 with Service Pack 1 (SP1) and later, Windows Vista, Windows Server 2008, and subsequent versions of the operating system. The Smart Card Modules provide similar functionality.]
The FreeIStreamMemoryPtr method frees the byte pointer pointing to the HGLOBAL memory block managed by an IStream COM interface.
Syntax
HRESULT FreeIStreamMemoryPtr(
[in] LPSTREAM pStrm,
[in] LPBYTE pMem
);
Parameters
-
pStrm [in]
-
Pointer to the IStream interface that manages the memory block pointed to by pMem.
-
pMem [in]
-
Pointer to the memory block managed by the IStream interface.
Return value
The method returns one of the following possible values:
| Return code | Description |
|---|---|
|
Memory allocated successfully. |
|
There is something wrong with one or more of the parameters passed into the function. |
|
A parameter of pointer type was incorrect. |
|
Not enough free memory to satisfy request. |
Remarks
This function completely and cleanly releases the byte pointer pointing to the HGLOBAL memory block managed by the IStream interface. The byte pointer is acquired by a call to GetAtIStreamMemory.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| End of client support |
Windows XP |
| End of server support |
Windows Server 2003 |
| Header |
|
| Type library |
|
| DLL |
|
| IID |
IID_ISCardTypeConv is defined as 53B6AA63-3F56-11D0-916B-00AA00C18068 |
See also