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let cCAMLtoTKscrollValue : scrollValue -> tkArgs = function
| `Page v1 ->
TkTokenList [TkToken"scroll"; TkToken (string_of_int v1); TkToken"pages"]
| `Unit v1 ->
TkTokenList [TkToken"scroll"; TkToken (string_of_int v1); TkToken"units"]
| `Moveto v1 ->
TkTokenList [TkToken"moveto"; TkToken (string_of_float v1)]
(* str l -> scrllv -> str l *)
let cTKtoCAMLscrollValue = function
| "scroll" :: n :: "pages" :: l ->
`Page (int_of_string n), l
| "scroll" :: n :: "units" :: l ->
`Unit (int_of_string n), l
| "moveto" :: f :: l ->
`Moveto (float_of_string f), l
| _ -> raise (Invalid_argument "TKtoCAMLscrollValue")
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