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Using WM_COPYDATA for interprocess communication.

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Hi all. I want to have two separate scripts running and when I click a button, (e.g. submit) I want certain information to go from one script to the other. I'm told WM_COPYDATA is the best way to do this but I'm not really sure how to use it. For an example program I'd like to send just one number from one script the the other.

In a real life example I want a GUI to be one script and the other script lets say to be running calculations.

Any help would be greatly appreciated.

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Welcome to the AutoIt forums.

There are multiple examples on the forum of scripts using WM_COPYDATA to communicate between scripts. Having studied those, what code do you have that does not work as you wish?


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:


ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area


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