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Remove Borders and Size to Full Screen (Make Borderless-Windowed)

This script will remove the window borders and caption bar, and resize the window to be the size of the full screen. If you run it a second time, it will re-enable the window borders and caption bar.
Minimum Version
Created By
Ido Lew38710, Thomas Malloch (BFS)
Date Created
Jun 17, 2015
Date Last Modified
Aug 16, 2016

Scripted Function (Macro) Code

using System;
using System.Drawing;

// 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
	public static void Run(IntPtr windowHandle)
		//get the window styles
		BFS.WindowEnum.WindowStyle style = BFS.Window.GetWindowStyle(windowHandle);
		//if the window has any borders and titles, make it full screen
		if(BFS.Window.HasWindowStyle(BFS.WindowEnum.WindowStyle.WS_CAPTION, windowHandle) ||
			BFS.Window.HasWindowStyle(BFS.WindowEnum.WindowStyle.WS_SYSMENU, windowHandle) ||
			BFS.Window.HasWindowStyle(BFS.WindowEnum.WindowStyle.WS_THICKFRAME__SIZEBOX, windowHandle) ||
			BFS.Window.HasWindowStyle(BFS.WindowEnum.WindowStyle.WS_MINIMIZEBOX, windowHandle))
			 //|| BFS.Window.HasWindowStyle(BFS.WindowEnum.WindowStyle.WS_MAXIMIZEBOX, windowHandle))
			//save the size and position of the window
			//make sure to remove the styles. just toggling these settings may turn on something we dont want
			style &= ~BFS.WindowEnum.WindowStyle.WS_CAPTION;
			style &= ~BFS.WindowEnum.WindowStyle.WS_SYSMENU;
			style &= ~BFS.WindowEnum.WindowStyle.WS_THICKFRAME__SIZEBOX;
			style &= ~BFS.WindowEnum.WindowStyle.WS_MINIMIZEBOX;
			//style &= ~BFS.WindowEnum.WindowStyle.WS_MAXIMIZEBOX;
			//get the bounds of the monitor that the window is in
			Rectangle bounds = BFS.Monitor.GetMonitorBoundsByWindow(windowHandle);
			//set the window style
			BFS.Window.SetWindowStyle(style, windowHandle);
			//size and position the window to be fullscreen within the monitor
			BFS.Window.SetSizeAndLocation(windowHandle, bounds.X, bounds.Y, bounds.Width, bounds.Height);
			//if we got here, then the window must already be fullscreen.
			//add non-fullscreen styles back to the window
			style |= BFS.WindowEnum.WindowStyle.WS_CAPTION;
			style |= BFS.WindowEnum.WindowStyle.WS_SYSMENU;
			style |= BFS.WindowEnum.WindowStyle.WS_THICKFRAME__SIZEBOX;
			style |= BFS.WindowEnum.WindowStyle.WS_MINIMIZEBOX;
			style |= BFS.WindowEnum.WindowStyle.WS_MAXIMIZEBOX;
			//try and load saved window size and position
			bool isMaximized;
			Rectangle bounds = GetSavedWindowSize(windowHandle, out isMaximized);
			//set the window style
			BFS.Window.SetWindowStyle(style, windowHandle);
			//if we couldnt load the size, exit the script
			//if the window was maximized, maximize it, otherwise set the window size and location with the values we loaded
				BFS.Window.SetSizeAndLocation(windowHandle, bounds.X, bounds.Y, bounds.Width, bounds.Height);
	//this is a function that will save the window size and position in window properties
	private static void SaveWindowSize(IntPtr windowHandle)
		Rectangle bounds = BFS.Window.GetBounds(windowHandle);
		BFS.Window.SetWindowProperty(windowHandle, "ToggleFullscreen_X", new IntPtr(bounds.X));
		BFS.Window.SetWindowProperty(windowHandle, "ToggleFullscreen_Y", new IntPtr(bounds.Y));
		BFS.Window.SetWindowProperty(windowHandle, "ToggleFullscreen_Width", new IntPtr(bounds.Width));
		BFS.Window.SetWindowProperty(windowHandle, "ToggleFullscreen_Height", new IntPtr(bounds.Height));
		BFS.Window.SetWindowProperty(windowHandle, "ToggleFullscreen_IsMaximized", new IntPtr(BFS.Window.IsMaximized(windowHandle) ? 1 : 0));
	private static Rectangle GetSavedWindowSize(IntPtr windowHandle, out bool isMaximized)
		Rectangle bounds = new Rectangle();
		bounds.X = BFS.Window.GetWindowProperty(windowHandle, "ToggleFullscreen_X").ToInt32();
		bounds.Y = BFS.Window.GetWindowProperty(windowHandle, "ToggleFullscreen_Y").ToInt32();
		bounds.Width = BFS.Window.GetWindowProperty(windowHandle, "ToggleFullscreen_Width").ToInt32();
		bounds.Height = BFS.Window.GetWindowProperty(windowHandle, "ToggleFullscreen_Height").ToInt32();
		isMaximized = (BFS.Window.GetWindowProperty(windowHandle, "ToggleFullscreen_IsMaximized").ToInt32() == 1);
		return bounds;