อยากทราบวิธิสั่งเครื่องพิมพ์สลิป มัคู่มือแต่ไม่รู้เรื่อง

<Definition>
int Open ( string pathName )
<Function>
Opens the CLF file with the specified path.
<Argument>
pathName
Specifies the full path of the CLF file to be used as template.
<Returned value>
0 : Indicates that the CLF file was opened properly.
Other
than 0
: Indicates that some kind of error has occurred, including
failure to find the CLF file.