HardwareKeys Enumeration
Specifies the hardware buttons on a Pocket PC that can be accessed by the HardwareButton class.
Assembly: Microsoft.WindowsCE.Forms (in Microsoft.WindowsCE.Forms.dll)
| Member name | Description | |
|---|---|---|
![]() | None | Specifies that no actual hardware buttons are associated with this HardwareButton instance. |
![]() | ApplicationKey1 | Specifies the hardware button that corresponds to application 1. |
![]() | ApplicationKey2 | Specifies the hardware button that corresponds to application 2. |
![]() | ApplicationKey3 | Specifies the hardware button that corresponds to application 3. |
![]() | ApplicationKey4 | Specifies the hardware button that corresponds to application 4. |
![]() | ApplicationKey5 | Specifies the hardware button that corresponds to application 5. |
![]() | ApplicationKey6 | Specifies the hardware button that corresponds to application 6. |
| Exception | Condition |
|---|---|
| NotSupportedException |
The form or control associated with a member of this enumeration can receive the KeyDown and KeyUp events when the corresponding hardware button is pressed.
Note: |
|---|
These enumeration values correspond to the application keys on a Pocket PC. The application keys are not included in the core key set, so their hardware key mapping may vary from one keyboard layout to the next. Only the default hardware key mapping is supported. |
This enumeration is not supported and throws a NotSupportedException on the Smartphone and other Windows CE devices that are not Pocket PCs.
The following code example uses the AssociatedControl and HardwareKey properties to display a form whenever the first and fourth buttons on Pocket PC are pressed. This code example is part of a larger example provided for the HardwareButton class.
Private Sub ConfigHWButton() 'Set KeyPreview to true so that the form 'will receive key events before they 'are passed to the control that has focus. Me.KeyPreview = True hwb1 = New HardwareButton() hwb4 = New HardwareButton() 'Set the AssociatedControl property 'to the current form and configure the 'first and fourth buttons to activate the form. Try hwb1.AssociatedControl = Me hwb4.AssociatedControl = Me hwb1.HardwareKey = HardwareKeys.ApplicationKey1 hwb4.HardwareKey = HardwareKeys.ApplicationKey4 Catch exc As Exception MessageBox.Show(exc.Message + " Check if the hardware button is physically available on this device.") End Try End Sub Private Overloads Sub OnKeyUp(sender As Object, e As KeyEventArgs) Handles MyBase.KeyUp ' When a hardware button is pressed and released, ' this form receives the KeyUp event. The OnKeyUp ' method is used to determine which hardware ' button was pressed, because the event data ' specifies a member of the HardwareKeys enumeration. Select Case CType(e.KeyCode, HardwareKeys) Case HardwareKeys.ApplicationKey1 statusBar1.Text = "Button 1 pressed." Case HardwareKeys.ApplicationKey4 statusBar1.Text = "Button 4 pressed." Case Else End Select End Sub
Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
