Register Global HotKeys

UPDATE: New updates have been made for ease of use and implementation in any project. Attached is a new working example.

Here's a class which gives you the ability to add hotkeys globally! This means regardless the forms focus state, your hotkeys guaranteed to fire.
Note: Hotkeys can be overwritten if you will by other applications. If you register Ctrl+A, then afterwards a game does too. The game now has that hotkey and yours will no longer fire.

Class

vbnet Code:

Public NotInheritable Class HotKeyRegistryClass
 
    Private Declare Function RegisterHotKey Lib "user32.dll" (ByVal handle As IntPtr, ByVal id As Int32, ByVal fsModifier As Int32, ByVal vk As Int32) As Int32
    Private Declare Function UnregisterHotKey Lib "user32.dll" (ByVal handle As IntPtr, ByVal id As Int32) As Int32
 
    Private Handle As IntPtr = IntPtr.Zero
    Private Registry As New System.Collections.Generic.List(Of Int32)
 
    Public Enum Messages
        [WM_HOTKEY] = &H312
    End Enum
    Public Enum Modifiers
        [MOD_ALT] = &H1
        [MOD_CTRL] = &H2
        [MOD_SHIFT] = &H4
    End Enum
 
 
    Sub New(ByVal Handle As IntPtr)
        Me.Handle = Handle
    End Sub
 
    Public Function Register(ByVal Modifier As Int32, ByVal Key As System.Windows.Forms.Keys) As Int32
        Dim ret As Int32
 
        ret = NextAvailableIndex()
        Call RegisterHotKey(Me.Handle, ret, Modifier, Key)
        Registry.Insert(ret, ret)
        Return ret
    End Function
    Public Sub Unregister(ByVal ID As Int32)
        Call UnregisterHotKey(Me.Handle, ID)
        Registry.Remove(ID)
    End Sub
 
    Private Function NextAvailableIndex() As Int32
        Dim ret As Int32 = 0
        Dim n As Int32 = 0
 
        For i As Int32 = 0 To Registry.Count - 1
            If Registry(i) = n Then
                n = n + 1
            ElseIf n < Registry(i) Then
                Return n
            End If
        Next
        If n = Registry.Count Then
            Return Registry.Count
        End If
        Return ret
    End Function
 
End Class

Finally you must place this in the form you registered your new instance of the hotkey registry class with.

vbnet Code:

Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
        If m.Msg = HotKeyRegistryClass.Messages.WM_HOTKEY Then
            Dim ID As String = m.WParam.ToString()
            Select Case ID
                case 0
                case 1
                case 2
                case ...
            End Select
        End If
        MyBase.WndProc(m)
    End Sub

Sorry if this is a simple question but how do you use this LoL

I see I need to place hotkey ID's here but you don't show any examples of what you are looking for?

Can you post a quick example of how one would perform a action when [ctrl], [shift], b or something like that is pressed.

Yeah maramor that's not a problem, and sorry I never provided an example. Kind of put this up quick but here's what I got for you.

First you're going to want to create an instance of the HotKeyRegistryClass class.

vbnet Code:

Dim HotKeyRegistry As New HotKeyRegistryClass()

Second, begin to add items too this new instance of the class. In this case they are the HotKeys located in namespace Collections.Items.

vbnet Code:

' this one will fire simply by pressing the 'A' key.
Dim hk1 As new Collections.Items.HotKey(1,, Keys.A)
' this one will fire when you hit the 'A' key, plus Ctrl+Alt.
Dim hk2 As new Collections.Items.HotKey(2, Windows.Keys.MOD_CTRL Or Windows.Keys.MOD_ALT, Keys.A)
 
HotKeyRegistry.RegisterGlobalHotKey(Form1.Handle, hk1)
HotKeyRegistry.RegisterGlobalHotKey(Form1.Handle, hk2)

Thats it!

To unregister the hotkey's pass that same Form1.Handle and the hk you're going to unregister to the HotKeyRegistry.UnregisterGlobalHotKey method


Make sure you place the last bit of code I provided in my original post in the forms code you plan on using to catch these key presses with.

Hope this helps.. and I'm sure my name spaces didn't help at all. Enjoy!


EDIT: Honestly having only worked in a professional setting for 2 months, have I noticed I would change sooo much with what I have here.. Perhaps I'll do an update in a few, haven't been doing much at home now that I code 5 days a week, 8 hours a day.

Check the original post, I have updated the code. Plus provided a working example.

Thank you for the updates
I am trying to get familar with .Net for work as I do little things here and there to automate or make things simpler.

Everything works as advertised and the example you posted is awesome.
What if I wanted to have multiple modifiers [ctrl],[shift],A?

Looks like in your revision you removed this ability.

Per your first explaination:
Dim HotKeyRegistry As New HotKeyRegistryClass(Me.Handle)
Dim hk2 As New Collections.Items.HotKey(2, Windows.Keys.MOD_CTRL Or Windows.Keys.MOD_ALT, Keys.A)

Collections.Items.HotKey is not defined.

Your welcome, and im glad it all worked without a hitch. The multiple modifiers still works. My new example never demonstrated but its just as it was before. To do for example, alt+ctrl. When registering a hotkey pass Modifier.MOD_ALT Or Modifier.MOD_CTRL. Technically you are passing &H1 Or &H2.. I believe are the corresponding values.

I know you can do all three, just pass whatever modifier you want and an Or operator in between each modifier you want.

[MOD] Or [MOD2] Or [MOD3] ...

OMG!!! So easy I tried several variations but didn't think Or.
I thought And not Or, ARG!!!!

hkr.Register(HotKeyRegistryClass.Modifiers.MOD_SHIFT Or HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.F8).ToString()

Now how do I not use a modifier? LoL Looks like 0 will work.
hkr.Register(0, Keys.F8).ToString()

I do believe you can pass 0. If anything or &H0, i haven't tried. But if you cant figure it out by the time im out of work i will look into that for you.

Simple mistake, I only know to use Or because that's just what I've always seen since i first began coding with vb6. My guess is its because they are requiring logical disjunction comparisons, which Or is. Where as And is a logical conjunction. I could be wrong but to be honest i haven't seen much documentation on exactly why you use Or for flag concatenations.

Got it!

Now that I kinda understand how it works I am going to try and build a nice little pick your HotKey's menu for my app and see if I can store it in "My.Settings". Yahoo!!

Again, thank you for the post, responses and assistance.
:wave:

Would you happen to know how I would do something like this?
Dim KK As Keys = CType(TextBox1.Text, Keys)
or perhaps I am thinking wrong.

Basically I have a form that allows me to set the MOD keys and define the basic key. My challenge now is since I have TextBox1.Text with a Keys value I need to convert it to a KEYS object inorder to fit in the register command.

Code:

---

        hkr.Unregister(0)

        Dim P1 As Integer
        Dim P2 As Integer
        Dim P3 As Integer
        Dim P4 As Integer
        Dim KK As Keys = CType(TextBox1.Text, Keys)

        If Label3.Text = "{CTRL}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label3.Text = "{ALT}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label3.Text = "{SHIFT}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label3.Text = "{WIN}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        If Label4.Text = "{CTRL}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label4.Text = "{ALT}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label4.Text = "{SHIFT}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label4.Text = "{WIN}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        If Label5.Text = "{CTRL}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label5.Text = "{ALT}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label5.Text = "{SHIFT}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label5.Text = "{WIN}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        If Label6.Text = "{CTRL}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label6.Text = "{ALT}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label6.Text = "{SHIFT}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label6.Text = "{WIN}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        hkr.Register(P1 Or P2 Or P3 Or P4, KK)

---

Got ya covered, try...

Code:

---

Dim key As System.Windows.Forms.Keys
Dim kc As New System.Windows.Forms.KeysConverter()

key = kc.ConvertFromString(TextBox1.Text)

---

Thank you. It works! Although I get a implicit conversion warning when Strict is on, I just removed that and it works.

Here is my code thus far for my menu with only one issue with saving the key value to MySettings, msgboxes show the correct key but after close and repopen it is blank. At least anyone else stumbling across this article can see another example. I think the combination of my menu (once fully working) and your code makes a nice addition to any project :). Thank you for all your help.

Code:

---

Public Class HotKeyz
    Dim x As String
    Dim hkr As New HotKeyRegistryClass(Me.Handle)

    Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
        If m.Msg = HotKeyRegistryClass.Messages.WM_HOTKEY Then 'NOT THE ACTUAL WINDOWS NAMESPACE
            Dim ID As String = m.WParam.ToString()
            Select Case ID
                Case Convert.ToString(0) : Clipboard.SetDataObject(TimeStamp.TextBox1.Text + " " + TimeStamp.Label1.Text + " " + TimeStamp.Label2.Text + vbCrLf + vbCrLf) 'MessageBox.Show("F")
                    'Case 0 : MessageBox.Show("F")
            End Select
        End If
        MyBase.WndProc(m)
    End Sub

    Private Sub HotKeyz_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Leave

    End Sub

    Private Sub HotKeyz_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If My.Settings.HK_CTRL = 1 Then
            HotKeyz("CTRL", 1)
        ElseIf My.Settings.HK_CTRL <= 0 Then
            HotKeyz("CTRL", 0)
        End If

        If My.Settings.HK_ALT = 1 Then
            HotKeyz("ALT", 1)
        ElseIf My.Settings.HK_ALT <= 0 Then
            HotKeyz("ALT", 0)
        End If

        If My.Settings.HK_SHIFT = 1 Then
            HotKeyz("SHIFT", 1)
        ElseIf My.Settings.HK_SHIFT <= 0 Then
            HotKeyz("SHIFT", 0)
        End If

        If My.Settings.HK_WIN = 1 Then
            HotKeyz("WIN", 1)
        ElseIf My.Settings.HK_WIN <= 0 Then
            HotKeyz("WIN", 0)
        End If

        MsgBox("CTRL = " + My.Settings.HK_CTRL.ToString + vbCrLf + _
              "ALT = " + My.Settings.HK_ALT.ToString + vbCrLf + _
              "SHIFT = " + My.Settings.HK_SHIFT.ToString + vbCrLf + _
              "WIN = " + My.Settings.HK_WIN.ToString + vbCrLf + _
              "KEY = " + My.Settings.HotKeyzKEY)

        If Label3.Text = "" Then
            Label2.Text = TextBox1.Text
        Else
            Label2.Text = Label3.Text + Label4.Text + Label5.Text + Label6.Text + " + " + TextBox1.Text
        End If

    End Sub

    Public Sub HotKeyz(ByVal MODz As String, ByVal Status As Integer)
        If MODz = "CTRL" And Status = 1 Then
            If Label3.Text = "" Then
                Label3.Text = "{CTRL}"
            ElseIf Label4.Text = "" Then
                Label4.Text = "{CTRL}"
            ElseIf Label5.Text = "" Then
                Label5.Text = "{CTRL}"
            ElseIf Label6.Text = "" Then
                Label6.Text = "{CTRL}"
            End If
            My.Settings.HK_CTRL = 1
            Button1.FlatStyle = FlatStyle.Flat
        ElseIf MODz = "CTRL" And Status = 0 Then
            If Label3.Text = "{CTRL}" Then
                Label3.Text = Label4.Text
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label4.Text = "{CTRL}" Then
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label5.Text = "{CTRL}" Then
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label6.Text = "{CTRL}" Then
                Label6.Text = ""
            End If
            My.Settings.HK_CTRL = 0
            Button1.FlatStyle = FlatStyle.Standard
        End If

        If MODz = "ALT" And Status = 1 Then
            If Label3.Text = "" Then
                Label3.Text = "{ALT}"
            ElseIf Label4.Text = "" Then
                Label4.Text = "{ALT}"
            ElseIf Label5.Text = "" Then
                Label5.Text = "{ALT}"
            ElseIf Label6.Text = "" Then
                Label6.Text = "{ALT}"
            End If
            My.Settings.HK_ALT = 1
            Button2.FlatStyle = FlatStyle.Flat
        ElseIf MODz = "ALT" And Status = 0 Then
            If Label3.Text = "{ALT}" Then
                Label3.Text = Label4.Text
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label4.Text = "{ALT}" Then
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label5.Text = "{ALT}" Then
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label6.Text = "{ALT}" Then
                Label6.Text = ""
            End If
            My.Settings.HK_ALT = 0
            Button2.FlatStyle = FlatStyle.Standard
        End If

        If MODz = "SHIFT" And Status = 1 Then
            If Label3.Text = "" Then
                Label3.Text = "{SHIFT}"
            ElseIf Label4.Text = "" Then
                Label4.Text = "{SHIFT}"
            ElseIf Label5.Text = "" Then
                Label5.Text = "{SHIFT}"
            ElseIf Label6.Text = "" Then
                Label6.Text = "{SHIFT}"
            End If
            My.Settings.HK_SHIFT = 1
            Button3.FlatStyle = FlatStyle.Flat
        ElseIf MODz = "SHIFT" And Status = 0 Then
            If Label3.Text = "{SHIFT}" Then
                Label3.Text = Label4.Text
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label4.Text = "{SHIFT}" Then
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label5.Text = "{SHIFT}" Then
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label6.Text = "{SHIFT}" Then
                Label6.Text = ""
            End If
            My.Settings.HK_SHIFT = 0
            Button3.FlatStyle = FlatStyle.Standard
        End If

        If MODz = "WIN" And Status = 1 Then
            If Label3.Text = "" Then
                Label3.Text = "{WIN}"
            ElseIf Label4.Text = "" Then
                Label4.Text = "{WIN}"
            ElseIf Label5.Text = "" Then
                Label5.Text = "{WIN}"
            ElseIf Label6.Text = "" Then
                Label6.Text = "{WIN}"
            End If
            My.Settings.HK_WIN = 1
            Button4.FlatStyle = FlatStyle.Flat
        ElseIf MODz = "WIN" And Status = 0 Then
            If Label3.Text = "{WIN}" Then
                Label3.Text = Label4.Text
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label4.Text = "{WIN}" Then
                Label4.Text = Label5.Text
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label5.Text = "{WIN}" Then
                Label5.Text = Label6.Text
                Label6.Text = ""
            ElseIf Label6.Text = "{WIN}" Then
                Label6.Text = ""
            End If
            My.Settings.HK_WIN = 0
            Button4.FlatStyle = FlatStyle.Standard
        End If

        If Label3.Text = "" Then
            Label2.Text = TextBox1.Text
        Else
            Label2.Text = Label3.Text + Label4.Text + Label5.Text + Label6.Text + " + " + TextBox1.Text
        End If

        My.Settings.HotKeyzKEY = TextBox1.Text

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If Button1.FlatStyle = FlatStyle.Standard Then
            HotKeyz("CTRL", 1)
        Else
            HotKeyz("CTRL", 0)
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        If Button2.FlatStyle = FlatStyle.Standard Then
            HotKeyz("ALT", 1)
        Else
            HotKeyz("ALT", 0)
        End If
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        If Button3.FlatStyle = FlatStyle.Standard Then
            HotKeyz("SHIFT", 1)
        Else
            HotKeyz("SHIFT", 0)
        End If
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        If Button4.FlatStyle = FlatStyle.Standard Then
            HotKeyz("WIN", 1)
        Else
            HotKeyz("WIN", 0)
        End If
    End Sub

    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        Me.Hide()
        TimeStamp.Show()
    End Sub

    Private Sub TextBox1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
        x = e.KeyCode.ToString()

        MsgBox(x)

        If Len(x) > 1 And x <> "ControlKey" And x <> "Menu" And x <> "ShiftKey" And x <> "LWin" Then
            TextBox1.Text = x
        End If

    End Sub

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
        'TextBox1.Text = x

        If Len(x) > 1 And x <> "ControlKey" And x <> "Menu" And x <> "ShiftKey" And x <> "LWin" Then
            TextBox1.Text = x
            My.Settings.HotKeyzKEY = x
        End If

        If Len(x) = 1 Then
            TextBox1.Text = x
            My.Settings.HotKeyzKEY = x
        End If

        MsgBox(My.Settings.HotKeyzKEY)

        If Label3.Text = "" Then
            Label2.Text = TextBox1.Text
        Else
            Label2.Text = Label3.Text + Label4.Text + Label5.Text + Label6.Text + " + " + TextBox1.Text
        End If
    End Sub

    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
        My.Settings.HotKeyzKEY = TextBox1.Text

        Dim key As System.Windows.Forms.Keys
        Dim kc As New System.Windows.Forms.KeysConverter()

        key = kc.ConvertFromString(TextBox1.Text)

        hkr.Unregister(0)

        Dim P1 As Integer
        Dim P2 As Integer
        Dim P3 As Integer
        Dim P4 As Integer

        If Label3.Text = "{CTRL}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label3.Text = "{ALT}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label3.Text = "{SHIFT}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label3.Text = "{WIN}" Then
            P1 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        If Label4.Text = "{CTRL}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label4.Text = "{ALT}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label4.Text = "{SHIFT}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label4.Text = "{WIN}" Then
            P2 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        If Label5.Text = "{CTRL}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label5.Text = "{ALT}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label5.Text = "{SHIFT}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label5.Text = "{WIN}" Then
            P3 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        If Label6.Text = "{CTRL}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_CTRL
        ElseIf Label6.Text = "{ALT}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_ALT
        ElseIf Label6.Text = "{SHIFT}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_SHIFT
        ElseIf Label6.Text = "{WIN}" Then
            P4 = HotKeyRegistryClass.Modifiers.MOD_WIN
        End If

        hkr.Register(P1 Or P2 Or P3 Or P4, key)
    End Sub


End Class

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Fantastic!!

Thank you so much! I have been looking all over the web for a solution to my problem.

Your solution worked flawlessly Dave

Thanks again

How can I send Numlock digits? I tried but failed. :(

Code:

---

If m.Msg = HotKeyRegistryClass.Messages.WM_HOTKEY Then 'NOT THE ACTUAL WINDOWS NAMESPACE
            Dim ID As String = m.WParam.ToString()
            Select Case ID
                Case 0 : SendKeys.Send(System.Windows.Forms.Keys.NumPad7)
                Case 1 : SenKeys.send("{NUMLOCK0}")
                Case 2 : MessageBox.Show("D")
                Case 3 : MessageBox.Show("F")
            End Select
        End If

---

Quote:

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Originally Posted by The_Kid

How can I send Numlock digits? I tried but failed. :(

Code:

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If m.Msg = HotKeyRegistryClass.Messages.WM_HOTKEY Then 'NOT THE ACTUAL WINDOWS NAMESPACE
            Dim ID As String = m.WParam.ToString()
            Select Case ID
                Case 0 : SendKeys.Send(System.Windows.Forms.Keys.NumPad7)
                Case 1 : SenKeys.send("{NUMLOCK0}")
                Case 2 : MessageBox.Show("D")
                Case 3 : MessageBox.Show("F")
            End Select
        End If

---

---

I'm not sure exactly, but my first suggestion would be not to use SendKeys.Send(). It may just be me, but I can never get it to work 100% of the time. So instead I always use keybd_event. Hope this helps.

I am trying to create a global HotKey for a project with multiple forms. When a user press hotkey, I would like to add a current date to the active textbox control. I modified the code to something like this:

Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = HotKeyRegistryClass.Messages.WM_HOTKEY Then
Dim ID As String = m.WParam.ToString()
Select Case ID
Case 0
If TypeOf (Me.ActiveControl) Is TextBox Then
Me.ActiveControl.Text = Me.ActiveControl.Text.Insert(Me.ActiveControl.Text.Length, DateTime.Now.ToShortDateString)
Dim tb As TextBox
tb = Me.ActiveControl
tb.Select(Me.ActiveControl.Text.Length, 0)
End If
End Select
End If
MyBase.WndProc(m)
End Sub


How do I achieve this on all the forms in the project? Seems like it is tied to a form the HotKey is registered to. Any help? Thanks.

Hmmm, the only way I could think of is to continue processing everything through your main hook. There you can detect the "active" form within the scope of your project, then do with it what ever you so please.



Sorry to say I don't have much experience with ActiveControl, but the little I do have is that it's stays within it's scope (the form). So perhaps you can continue using this, but you'll first have to detect the active form, then go from there.

Hi, i'm creating a program that has every internet radio station of my country and i've been thinking that it would be very nice that if it would be possible to change to another station with the keyboard even though a fullscreened game(directX) is up. I've tried this way but it doesn't seem to work when i am playing games, league of legends for an example. Any one here that can help me with this problem?

Truly excellent. I know this is old now, but it is still a good result in google, and the only one to be both simple and effective.

I've been trying to figure this out for ages. I managed it once years ago, and i couldn't for the life of me read the code i had managed.
Some of the top results in google have an asynchronous timers with ridiculous intervals to get when a key is pressed. Garbage.

This works perfectly - working fine on VS2015.

If option strict is on, make sure you cast the integer as string to prevent the error from appearing - From the excellent example the author provided "Case CStr(0) : MessageBox.Show("A")"

Edit: Just for others curiosity, if you don't want a modifier key, you can pass 'nothing' in place of the modifier - i.e "hkr.Register(Nothing, Keys.MediaNextTrack).ToString()"

error

How to make the same hotkey show and hide the form?
example: crtl+A hide the form, crtl+A again show the form if it is hidden
edit: did it Me.Visible = Not Me.Visible thanks