Opens the standard Open Dialog box, in order to let the user to choose a file.

Opens the dialog box.
Full name of the selected file (included the path).
Fill name without path information.
Initial path. Filled by the path of the selected file .
Files filter.
For example can be:
Patch files (*.pat)*.pat
All Images *.jpg; *.bmp; *.ico
Wave, aiff or mp3 files *.wav; *.aif; *.mp3; *.flac
All files (*.*)*.*
Send 1 value when the open dialog operation is completed.
A flow-from-1-to-0 must be used to trigger something when the operation is completed or canceled.
Send 1 value when the open dialog operation has been canceled.
A flow-from-1-to-0 must be used to trigger something when the operation is completed or canceled.
Sets the file name to a blank string.
version 6.0.241021
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