Directs the driver to open an new instance.
Identifier of the installable driver.
Handle of the installable driver instance.
Address of a null-terminated, wide-character string that specifies
configuration information used to open the instance. If no configuration information is
available, either this string is empty or the parameter is NULL.
32-bit driver-specific data.
Returns a nonzero value if successful or zero otherwise.
If the driver returns a nonzero value, the system uses that value as the
driver identifier (the dwDriverId
parameter) in messages it subsequently sends to the driver instance. The
driver can return any type of value as the identifier. For example, some drivers
return memory addresses that point to instance-specific information. Using this
method of specifying identifiers for a driver instance gives the drivers ready
access to the information while they are processing messages.
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