The ICM_SET_STATUS_PROC message is periodically sent to an application's status callback function during lengthy operations.
Parameters
dwParam1
Specifies a pointer to an ICSETSTATUSPROC structure.
dwParam2
Specifies the size of the ICSETSTATUSPROC data structure.
Return Value
Returns ICERR_OK if successful.
Comments
Support of this function is optional but highly recommended if compression or decompression takes longer than approximately one tenth of one second.