mciGetYieldProc function
The mciGetYieldProc function retrieves the address of the callback function associated with the "wait" (MCI_WAIT) flag. The callback function is called periodically while an MCI device waits for a command specified with the "wait" flag to finish.
Syntax
YIELDPROC mciGetYieldProc(
MCIDEVICEID IDDevice,
LPDWORD lpdwYieldData
);
Parameters
IDDevice
MCI device being monitored (the device performing an MCI command).lpdwYieldData
Pointer to a buffer containing yield data to be passed to the callback function. This parameter can be NULL if there is no yield data.
Return value
Returns the address of the current yield callback function if successful or NULL if the device identifier is invalid.
Requirements
Minimum supported client |
Windows 2000 Professional [desktop apps only] |
Minimum supported server |
Windows 2000 Server [desktop apps only] |
Header |
Mmsystem.h (include Windows.h) |
Library |
Winmm.lib |
DLL |
Winmm.dll |