Casio DT-X8 Series Software Manual page 25

Enabling or Disabling Fn Key
For keys that perform specialized operations while the key input mode has been set to Function
mode, "Enable" or "Disable" can be set on each individual key in the registry below to control the
operations.
[HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\KEYBD]
Or, using the SysSetFnKeyOperation function of the System Library can achieve the same
control operation explained above.
Table 2.8
Key
DisableFn9 dword: 0 or 1
DisableFn8 dword: 0 or 1
DisableFn7 dword: 0 or 1
DisableFn6 dword: 0 or 1
DisableFn5 dword: 0 or 1
DisableFn4 dword: 0 or 1
DisableFn3 dword: 0 or 1
DisableFn2 dword: 0 or 1
DisableFn1 dword: 0 or 1
DisableFn0 dword: 0 or 1
The functions of the System Library relevant to the "Enabling or Disabling Fn Key" are as
follows.
SysSetFnKeyOperation
SysGetFnKeyOperation : Retrieves "Enable" or "Disable" status for the Fn key operation.
Function Mode Notification
When the Fn key is pressed, the WM_USER+0x502 message is issued to the application. This
enables the application to detect whether the Function mode has been set up enabled or disabled.
Setting Value Meaning
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
Enable or Disable
: Sets up "Enable" or "Disable" for the Fn key operation.
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