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The GetCallInfoBuffer method gets call information items that require a buffer, such as user-user information. Automation client applications, such as those written in Visual Basic, must use the ITCallInfo::get_CallInfoBuffer method.
Syntax
HRESULT GetCallInfoBuffer(
[in] CALLINFO_BUFFER CallInfoBuffer,
[out] DWORD *pdwSize,
[out] BYTE **ppCallInfoBuffer
);
Parameters
[in] CallInfoBuffer
CALLINFO_BUFFER indicator of information type needed, such as CIB_USERUSERINFO.
[out] pdwSize
Size of buffer returned in bytes.
[out] ppCallInfoBuffer
Pointer to buffer containing the needed call information.
Return value
This method can return one of these values.
| Return code | Description |
|---|---|
|
Method succeeded. |
|
Insufficient memory exists to perform the operation. |
|
The pdwSize or ppCallInfoBuffer parameter is not a valid pointer. |
|
The CallInfoBuffer parameter is not a valid value. |
|
The current call state is not valid for this operation. |
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | tapi3if.h (include Tapi3.h) |
| Library | Uuid.lib |
| DLL | Tapi3.dll |