/// <summary>
/// Updates the location of the form relevant to the selected display
/// </summary>
/// <param name="collapse">Display form in a collapsed/shrunk state</param>
private void RefreshSwitchUI(bool collapse)
{
//Only set if form state changing
if (iscollapsed != collapse)
{
//Set required size for form and show/hide panels with relevant controls
if (!collapse)
{
this.Size = new Size(370, 95); pnlMin.Hide(); pnlMain.Show(); this.ControlBox = true;
}
else
{
this.Size = new Size(136, 95); pnlMain.Hide(); pnlMin.Show(); this.ControlBox = false;
}
}
//Test if form is to be collapsed, and set the appropriate position for the form
if (!collapse)
{
int[] windowpos = VNC_Screen.PositionForDisplay(false, RegistryManagement.GetRegistryValue("DisplayDevice")); this.Left = windowpos[0]; this.Top = windowpos[1];
}
else
{
int[] windowpos = VNC_Screen.PositionForDisplay(true, RegistryManagement.GetRegistryValue("DisplayDevice")); this.Left = windowpos[0]; this.Top = windowpos[1];
}
iscollapsed = collapse;
}
/// <summary>
/// Event fired when tmrCheckPrimaryScreen elapses - used to ensure we have recorded the correct primary display
/// </summary>
private void tmrCheckPrimaryScreen_Tick(object sender, EventArgs e)
{
if (RegistryManagement.GetRegistryValue("PrimaryMonitor") != VNC_Screen.GetPrimaryScreen().DeviceName)
{
RegistryManagement.SetRegistryValue("PrimaryMonitor", VNC_Screen.GetPrimaryScreen().DeviceName);
}
}
/// <summary>
/// Returns relative location to draw a control for a specific display
/// </summary>
/// <param name="collapsed">Collapsed or full form location required</param>
/// <param name="screenname">The DeviceName of the display</param>
/// <returns>Integer array of offset x and y co-ordinates for display</returns>
public static int[] PositionForDisplay(bool collapsed, string screenname)
{
VNC_Screen screen = GetScreenByDeviceName(screenname);
if (collapsed)
{
return(new int[] { screen.X + 20, screen.Height - 95 - 20 });
}
else
{
return(new int[] { screen.X + 20, screen.Y + 20 });
}
}
/// <summary>
/// COnstructor for the formo
/// </summary>
/// <param name="_allowclose">Is the form allowed to be closed (e.g. shown when VNC session not in progress)</param>
public frmSwitchUI(bool _allowclose)
{
InitializeComponent();
allowclose = _allowclose;
//Set datasource for combobox to a list of currently connected screens
cmbDisplaySelector.DataSource = VNC_Screen.EnumerateScreens();
//Set combobox selection to match the current screen displayed from Registry value
cmbDisplaySelector.SelectedIndex = VNC_Screen.EnumerateScreens().FindIndex(x => x.DeviceName == RegistryManagement.GetRegistryValue("DisplayDevice"));
//Display full form
RefreshSwitchUI(false);
//Attach event handler for combobox
cmbDisplaySelector.SelectedIndexChanged += new EventHandler(cmbDisplaySelector_SelectedIndexChanged);
}
/// <summary>
/// Event for our Registry polling Timer
/// </summary>
private void tmrCheckReg_Tick(object sender, EventArgs e)
{
//Don't fire if user is currently selecting a display
if (!cmbDisplaySelector.DroppedDown)
{
//Only fire if the last session state indicates a user is currently logged in
if (RegistryManagement.GetRegistryValue("SessionChange") == "SessionLogon" || RegistryManagement.GetRegistryValue("SessionChange") == "SessionUnlock")
{
//Check if the selected value is different to the set value
if (cmbDisplaySelector.SelectedValue.ToString() != RegistryManagement.GetRegistryValue("DisplayDevice"))
{
//Set the combobox value to match the displayed screen from Registry
if (RegistryManagement.GetRegistryValue("DisplayDevice") != "")
{
cmbDisplaySelector.SelectedIndex = VNC_Screen.EnumerateScreens().FindIndex(x => x.DeviceName == RegistryManagement.GetRegistryValue("DisplayDevice"));
}
else
{
cmbDisplaySelector.SelectedIndex = 0;
}
}
}
}
}
/// <summary>
/// Returns the VNC_Screen for the Primary display
/// </summary>
/// <returns>The matching VNC_Screen object</returns>
public static VNC_Screen GetPrimaryScreen()
{
return(VNC_Screen.EnumerateScreens().Find(x => x.Primary == true));
}