Cancels any operation that may be blocking on another thread.
#include "netcon2.h"  
| Language | Syntax | 
|---|---|
| C | HRESULT ILMNetConnection_CancelBlockingCall(pCon) | 
| C++ | HRESULT CancelBlockingCall() | 
Pointer to an ILMNetConnection interface.
| Value | Meaning | 
|---|---|
| S_OK | The function was successful. | 
| <> S_OK | An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. | 
The blocking function is expected to exit immediately with an interrupted function call code, WSAEINTR.
Win32, x64.
For examples, refer to:
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