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/Util/Named Mutex


Required plugins for this example: MBS Util Plugin

You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Util/Named Mutex

This example is the version from Tue, 4th May 2020.

Project "Named Mutex.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Delete"
Const kFileQuit = "&Quit"
Const kFileQuitShortcut = ""
End Class
Class MainWindow Inherits Window
Control LockButton Inherits PushButton
ControlInstance LockButton Inherits PushButton
EventHandler Sub Action() If mutex.TryLock Then List.AddRow "Mutex locked." Me.Enabled = False UnlockButton.Enabled = True Else List.AddRow "Failed to lock mutex. The mutex is locked by someone else." End If Exception r As UnsupportedOperationException List.AddRow r.message End EventHandler
End Control
Control UnlockButton Inherits PushButton
ControlInstance UnlockButton Inherits PushButton
EventHandler Sub Action() mutex.Unlock list.AddRow "Mutex unlocked." Me.Enabled = False LockButton.Enabled = True Exception r As UnsupportedOperationException List.AddRow r.message End EventHandler
End Control
Control List Inherits Listbox
ControlInstance List Inherits Listbox
End Control
EventHandler Sub Open() mutex = New NamedMutexMBS("test") list.AddRow "Mutex created: "+str(mutex.Handle) Exception r As UnsupportedOperationException List.AddRow r.message End EventHandler
Property mutex As NamedMutexMBS
End Class
MenuBar MainMenuBar
MenuItem FileMenu = "&File"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem EditSeparator1 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "#App.kEditClear"
MenuItem EditSeparator2 = "-"
MenuItem EditSelectAll = "Select &All"
End MenuBar
End Project

The items on this page are in the following plugins: MBS Util Plugin.


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