Example: /Util/Named Mutex

Online Documentation   -   Statistics   -   FAQ   -   Plugin Parts (All, Dependencies)   -   Class hierarchy

New in Version 22.2 22.3 22.4 22.5 23.0 23.1 23.2 23.3 23.4 23.5 24.0 24.1

The list of the   topics,   classes,   interfaces,   controls,   modules,   global methods by category,   global methods by name,   screenshots,   licenses   and   examples.

Platforms to show: All Mac Windows Linux Cross-Platform

/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.


💬 Ask a question or report a problem