Epson IR-320, Technical Reference Manual, Page: 222 / 340

4-42 Utilities Rev. C
End Codes
Layer Change / Reading Library
Function
This library offers functions that is necessary when using the layer function.
Functions
int Select28KeyLayer(int layer)
[Function]
Switches the layer that is currently in use.
[Argument]
Specifies the number of the layer from 0 to 3 to use, or default layer (0x0f).
[Return Values]
0 : Normal End
-20 : Communications error
-21 : Opening error
-22 : Argument error
int GetCurrent28KeyLayer(void)
[Function]
Acquires the layer that is currently in use.
[Argument]
None
[Return Value] 0 to 3 : The currently selected layer No.
-20
: Communications error
-21 : Opening error
Notes
❑
Copy LYFUNC.DLL and PKFUNC.DLL to the same folder as the application program.
❑
This library cannot be used during programming with 28keyCfg., etc.
❑
The keyboard and mouse do not respond during reading or writing of the settings.
❑
Do not perform any operations that would generate an interrupt, such as tapping the touch panel,
during reading or writing of the settings.
End Code Content
0 Normal end.
10 The firmware version is incorrect. Or, it was executed at another PC
(abnormal end).
11 Parameter error (abnormal end).
14 An error occurred in communications with the firmware (abnormal
end).
20 An error occurred during file access (abnormal end).
21 There was an error in the file’s data format (abnormal end).