ConvertThreadToFiberEx function (winbase.h)
Converts the current thread into a fiber. You must convert a thread into a fiber before you can schedule other fibers.
Syntax
LPVOID ConvertThreadToFiberEx(
[in, optional] LPVOID lpParameter,
[in] DWORD dwFlags
);
Parameters
[in, optional] lpParameter
A pointer to a variable that is passed to the fiber. The fiber can retrieve this data by using the GetFiberData macro.
[in] dwFlags
If this parameter is zero, the floating-point state on x86 systems is not switched and data can be corrupted if a fiber uses floating-point arithmetic. If this parameter is FIBER_FLAG_FLOAT_SWITCH, the floating-point state is switched for the fiber.
Return value
If the function succeeds, the return value is the address of the fiber.
If the function fails, the return value is NULL. To get extended error information, call GetLastError.
Remarks
Only fibers can execute other fibers. If a thread needs to execute a fiber, it must call ConvertTheadToFiber or ConvertThreadToFiberEx to create an area in which to save fiber state information. The thread is now the current fiber. The state information for this fiber includes the fiber data specified by lpParameter.
To compile an application that uses this function, define _WIN32_WINNT as 0x0400 or later. For more information, see Using the Windows Headers.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2003 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | winbase.h (include Windows.h) |
| Library | Kernel32.lib |
| DLL | Kernel32.dll |