using System;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;
using System.Collections.Generic;
// The 'windowHandle' parameter will contain the window handle for the:
// - Active window when run by hotkey
// - Window Location target when run by a Window Location rule
// - TitleBar Button owner when run by a TitleBar Button
// - Jump List owner when run from a Taskbar Jump List
// - Currently focused window if none of these match
public static class DisplayFusionFunction
{
private static readonly string SettingName = "DimMonitor_TransparentForm_Running";
public static void Run(IntPtr windowHandle)
{
//toggle the setting from running to not running, and vice versa
ToggleSetting();
//check to see if we should exit
bool isExiting = !IsTransparentWindowRunning();
//if we are exiting, exit
if(isExiting)
return;
//add all but the primary monitor to the list of monitors that will be dimmed
List<Form> forms = new List<Form>();
foreach(uint id in BFS.Monitor.GetMonitorIDs())
{
if(BFS.Monitor.GetMonitorBoundsByID(id).Equals(Screen.PrimaryScreen.Bounds))
continue;
forms.Add(new TransparentForm(id, 30m));
}
//this will open the forms we added to the list by using our custom application context
Application.Run(new MultipleFormApplicationContext(forms));
}
//this function toggles the script settings from running to not running
private static void ToggleSetting()
{
string status = BFS.ScriptSettings.ReadValue(SettingName);
if(status.Equals("running", StringComparison.Ordinal))
BFS.ScriptSettings.WriteValue(SettingName, "not");
else
BFS.ScriptSettings.WriteValue(SettingName, "running");
}
//this function allows us to see the currect state of the script
private static bool IsTransparentWindowRunning()
{
string status = BFS.ScriptSettings.ReadValue(SettingName);
return status.Equals("running", StringComparison.Ordinal);
}
//extend the ApplicationContext class to support opening multiple forms
private class MultipleFormApplicationContext : ApplicationContext
{
internal MultipleFormApplicationContext(List<Form> forms)
{
//open each of the forms, and add our closing event to them
foreach(Form form in forms)
{
form.FormClosed += OnFormClosed;
form.Show();
}
}
//when all the forms close, make sure to exit the application
private void OnFormClosed(object sender, EventArgs e)
{
if(Application.OpenForms.Count == 0)
ExitThread();
}
}
//extend the Form class to get the behavior we want
private class TransparentForm : Form
{
//this will tell us what monitor to open on
private uint MonitorId;
//this will tell us what transparency to use
private decimal Transparency;
//the contructor for our class
internal TransparentForm(uint monitorId, decimal transparency)
{
this.MonitorId = monitorId;
this.Transparency = transparency;
this.SuspendLayout();
//setup the layout of this form
this.BackColor = Color.Black;
this.FormBorderStyle = FormBorderStyle.None;
this.ShowInTaskbar = false;
//setup the form load event
this.Load += Form_Load;
this.ResumeLayout(false);
}
private void Form_Load(object sender, EventArgs e)
{
//set the window to be always on top
BFS.Window.SetAlwaysOnTop(this.Handle, true);
//make the window transparent
BFS.Window.SetTransparency(this.Handle, this.Transparency);
//add a windows style to the current style that will
//tell this window to ignore user input
uint style = (uint)BFS.Window.GetWindowStyleEx(this.Handle);
BFS.Window.SetWindowStyleEx((BFS.WindowEnum.WindowStyleEx)(style | (uint)BFS.WindowEnum.WindowStyleEx.WS_EX_TRANSPARENT | (uint)BFS.WindowEnum.WindowStyleEx.WS_EX_LAYERED), this.Handle);
//move the window to the desired monitor
this.Bounds = BFS.Monitor.GetMonitorBoundsByID(this.MonitorId);
//start up a thread to listen for an exit event
new Thread(new ThreadStart(ExitListener)).Start();
}
private void ExitListener()
{
while(true)
{
//if we should close, tell the main thread to close the form
if(!IsTransparentWindowRunning())
{
try
{
this.Invoke((MethodInvoker) delegate
{
this.Close();
});
}
catch //something went wrong, ignore
{
}
break;
}
//sleep for a quarter of a second
BFS.General.ThreadWait(250);
}
}
}
}