Official help file, what is the cause of the error? Topic is solved

[cgx5871]

Error: Invalid callback function.

Code: Select all

#Requires Autohotkey v2
#SingleInstance

myGui := Gui()
myGui.Add("Button", "", "&OK").OnEvent("ContextMenu", Gui_ContextMenu)
myGui.show
Gui_ContextMenu(GuiObj, GuiCtrlObj, Item, IsRightClick, X, Y){
  MsgBox GuiObj.Name
}

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[boiler]

That's the parameter list for a GUI object ContextMenu event callback function. You have a GUI control object Context Menu event callback function, whose parameter list is:
Ctrl_ContextMenu(GuiCtrlObj, Item, IsRightClick, X, Y)


What you did is as if you applied the event to the GUI object:

Code: Select all

#Requires Autohotkey v2
#SingleInstance

myGui := Gui()
myGui.OnEvent("ContextMenu", Gui_ContextMenu)
myGui.Add("Button", "", "&OK")
myGui.show
Gui_ContextMenu(GuiObj, GuiCtrlObj, Item, IsRightClick, X, Y){
  MsgBox GuiObj.Name
}