I have this issue where I have to change an image in a picturebox when a usbdevice connects..
I have a DeviceStatusMonitor which fires when a usbdevice is connected, and calls a sub where I change an image in a picturebox...(one image for a usbconnected and the other for usb not connected).
After insert and remove of usb key, memory is 4KB larger then before. Can someone check the code for what I am doing wrong?
I am doing this on windows CE device (thus memory is important even 4KB :))
Thanks Greg
Dim diskmonitor As OpenNETCF.Net.DeviceStatusMonitor
Public Sub StartDeviceMonitoring()
diskmonitor = New OpenNETCF.Net.DeviceStatusMonitor(OpenNETCF.Net.DeviceStatusMonitor.FATFS_MOUNT_GUID, False)
AddHandler diskmonitor.DeviceNotification, AddressOf diskmonitor_DeviceNotification
diskmonitor.StartStatusMonitoring()
End Sub
Private Sub diskmonitor_DeviceNotification(ByVal sender As Object, ByVal e As OpenNETCF.Net.DeviceNotificationArgs)
USBConn(e.DeviceAttached)
End Sub
Private Delegate Sub USBConnectDelegate(ByVal usb As Boolean)
Private USBConnectDelegate1 As New USBConnectDelegate(AddressOf USBConn)
Public Sub USBConn(ByVal USB As Boolean)
If PbxBackground.InvokeRequired Then
BeginInvoke(USBConnectDelegate1, USB)
Else
If USB Then
Dim bmBack As New Bitmap(PbxBackground.Width, PbxBackground.Height)
Dim grBack As Graphics = Graphics.FromImage(bmBack)
grBack.DrawImage(PbxBackground.Image, 0, 0)
grBack.DrawImage(My.Resources.USB_Logo, 520, 440)
PbxBackground.Image.Dispose()
PbxBackground.Image = bmBack
grBack.Dispose()
Else
PbxBackground.Image.Dispose()
PbxBackground.Image = My.Resources.Background
End If
End If
End Sub
No one has replied yet! Why not be the first?
Sign in or Join us (it's free).