Ksp reference Manual

1
) or horizontally (
0
, default)
File Browser
$CONTROL_PAR_BASEPATH
Sets the basepath of the UI file browser. This control par can only be used in the init callback. Be careful with the number of
subfolders of the basepath as it might take too long to scan the sub file system. The scan process takes place every time the
NKI is loaded.
$CONTROL_PAR_COLUMN_WIDTH
Sets the width of the browser columns. This control par can only be used in the init callback.
Control Parameter Variables
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KSP Reference Manual

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$CONTROL_PAR_FILEPATH
Sets the actual path of the UI file browser which must be a subpath of the basepath. This control par is useful for recalling the
last status of the browser upon loading the instrument. Can only be used in the init callback.
$CONTROL_PAR_FILE_TYPE
Sets the file type for file selector. Can only be used in the init callback.
The following file types are available:
$NI_FILE_TYPE_MIDI
$NI_FILE_TYPE_AUDIO
$NI_FILE_TYPE_ARRAY