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winycorners.cs
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winycorners.cs
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/*
WinYcorners
Sets a hot-corner that shows the Task View on mouse hover.
This tool wants to imitate the hot corners of Gnome Desktop 40+.
Gnome like hot corners for Windows.
Created by Luca Reggiannini. Original repo: https://github.com/LucaReggiannini/winycorners
Search your C# compiler with `cd C:/ %% dir /S /B csc.exe`
Compile & run with:
cls && taskkill /F /T /IM winycorners.exe & C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe /r:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WPF\WindowsBase.dll" /t:winexe /out:winycorners.exe winycorners.cs && winycorners.exe --top-left
*/
using System; // Tuples
using System.Windows; // Rect, Point
using System.Windows.Forms; // System.Windows.Forms.Form, Screen.PrimaryScreen.Bounds, MessageBox.Show
using System.Threading; // Thread.Sleep
using System.Runtime.InteropServices; // System.Diagnostics.Process.Start
using System.Text; // StringBuilder
using System.Diagnostics; // Process
class HotCornerForm : System.Windows.Forms.Form {
public HotCornerForm(string position, bool enhancedTaskView, short hotCornerSize, short updateTime, short enhancedTaskViewDelay) {
/* Create an invisible Windows Form */
this.FormBorderStyle = FormBorderStyle.None;
this.WindowState = FormWindowState.Minimized;
this.ShowInTaskbar = false;
HotCorner hc = new HotCorner(
position,
enhancedTaskView,
hotCornerSize,
updateTime,
enhancedTaskViewDelay);
}
static void Main(string[] args) {
bool enhancedTaskView = false;
string position = "--top-left";
short hotCornerSize = 8;
short updateTime = 100;
short enhancedTaskViewDelay = 150;
/* Parse arguments */
if (args == null || args.Length == 0)
help();
else {
for (int c = 0; c < args.Length; c++) {
if (args[c]=="--enhanced-task-view")
enhancedTaskView = true;
else if (args[c]=="--top-left" || args[c]=="--bottom-left" || args[c]=="--top-right" || args[c]=="--bottom-right")
position=args[c];
else if (args[c]=="--corner-size") {
try {
hotCornerSize=short.Parse(args[c+1]);
c=c+1;
} catch {
help();
}
} else if (args[c]=="--update-time") {
try {
updateTime=short.Parse(args[c+1]);
c=c+1;
} catch {
help();
}
} else if (args[c]=="--enhanced-task-view-delay") {
try {
enhancedTaskViewDelay=short.Parse(args[c+1]);
c=c+1;
} catch {
help();
}
} else
help();
}
KillExistingProcesses();
System.Windows.Forms.Application.Run(
new HotCornerForm(
position,
enhancedTaskView,
hotCornerSize,
updateTime,
enhancedTaskViewDelay));
}
}
private static void KillExistingProcesses() {
MessageBoxButtons buttons = MessageBoxButtons.YesNo;
Process currentProcess = Process.GetCurrentProcess();
Process[] processes = Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName);
foreach (var process in processes) {
if (process.Id != currentProcess.Id) {
DialogResult result = MessageBox.Show(
"Another WinYcorners process was found (PID:" + process.Id + "). " +
"Do you want to terminate it?",
"WinYcorners",
buttons,
MessageBoxIcon.Warning);
if (result == DialogResult.Yes)
process.Kill();
}
}
}
static void help() {
MessageBox.Show(@"
WinYcorners v1.7.0
https://github.com/LucaReggiannini/winycorners/
Sets a hot-corner that shows the Task View on mouse hover.
This tool wants to imitate the hot corners of Gnome Desktop 40+.
SYNOPSIS:
winycorners [POSITION] [OPTIONS]
POSITION:
--top-left
--top-right
--bottom-left
--bottom right
default position is top-left
OPTIONS:
--corner-size <pixels>
The size of the hot corner in pixels. Default value is 8px
--update-time <milliseconds>
Determines every how many milliseconds the position of the
Windows cursor is checked (in order to trigger a hot corner).
The default value is 100 milliseconds. Decreasing this value
can increase the responsiveness of WinYconer but can lead to
performance problems on the system
--enhanced-task-view
Hides Taskbar and maximize the desktop working area.
Show the Taskbar only when Task View is visible (like Gnome)
--enhanced-task-view-delay <milliseconds>
In Windows 11 the Taskbar visibility can't be changed
while the Task View is active. For Enhanced Task View mode
to work properly, the Taskbar is made visible immediately
after triggering the hot corner.
Every N milliseconds it is checked if the task view is still
active: if it is not, the task bar is made invisible again.
The '--enhanced-task-view-delay' option allows you to set
the number of milliseconds with which this check is
performed. The default value is 150 milliseconds (this value
is based on the time it takes the Task View animation to
finish).
Decreasing this value can increase the responsiveness of
WinYconers in Enhanced Task View mode, but can lead to
problems in properly displaying the Taskbar.
Decreasing the value is recommended only if Windows
animations are not enabled on your system.
Increasing the value may be useful for slower systems
");
System.Environment.Exit(0);
}
}
class HotCorner {
int SCREEN_HEIGHT = Screen.PrimaryScreen.Bounds.Height;
int SCREEN_WIDTH = Screen.PrimaryScreen.Bounds.Width;
public HotCorner(string position, bool enhancedTaskView, short hotCornerSize, short updateTime, short enhancedTaskViewDelay) {
/* Defining hot corner size */
Size s = new Size(hotCornerSize, hotCornerSize);
Rect hotCorner = new Rect(s);
/* Defining hot corner position (.Location is the upper-left point) */
if (position=="--top-left")
hotCorner.Location = new Point(0, 0);
else if (position=="--top-right")
hotCorner.Location = new Point(SCREEN_WIDTH - hotCornerSize, 0);
else if (position=="--bottom-left")
hotCorner.Location = new Point(0, SCREEN_HEIGHT - hotCornerSize);
else if (position=="--bottom-right")
hotCorner.Location = new Point(SCREEN_WIDTH - hotCornerSize, SCREEN_HEIGHT - hotCornerSize);
Cursor c = new Cursor(Cursor.Current.Handle);
bool triggeredHotCorner = false;
while(true) {
if (CheckFullScreenForegroundApp()==false || IsTaskViewVisible()==true) {
/*
Trigger hot corner based on the cursor position.
If the left mouse button is pressed, the hot corner is not triggered: maybe a drag and drop operation is in progress.
Note: WinYcorners does not trigger hot corner if there is a full screen application.
Windows 11 Task View is considered a full screen application so is white listed
using "...|| IsTaskViewVisible()==true" in the following conditional block.
*/
if (hotCorner.Contains(new Point(Cursor.Position.X, Cursor.Position.Y))==true && isDown(Keys.LButton)==false) {
SetTaskbarVisible(true);
if (triggeredHotCorner == false) {
triggeredHotCorner = true;
SwitchTaskView();
}
} else if (hotCorner.Contains(new Point(Cursor.Position.X, Cursor.Position.Y))==false && triggeredHotCorner)
triggeredHotCorner = false;
if (enhancedTaskView==true) {
/* Wait for Task View animations to terminate to determine if it is visible or not*/
Thread.Sleep(enhancedTaskViewDelay);
/* Display the taskbar only during the task view */
if (IsTaskViewVisible()==true)
SetTaskbarVisible(true);
else
SetTaskbarVisible(false);
/* Make sure that the desktop working area is always full size */
ExpandWorkingArea();
}
Thread.Sleep(updateTime);
}
}
}
/*
Code used to simulate a keypress to show the Windows Task View
Using "keybd_event" from user32.dll since "System.Windows.Forms.SendKeys.Send" does not support Win key.
Emulating with CTRL+ESC, SendWait("^({ESC}{TAB})") or Send("^({ESC}{TAB}})") does not work
*/
[DllImport("user32.dll")]
private static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);
private const int KEYEVENTF_EXTENDEDKEY = 0x0001;
private const int KEYEVENTF_KEYUP = 0x0002;
private static void KeyDown(Keys vKey) {
keybd_event((byte)vKey, 0, KEYEVENTF_EXTENDEDKEY, 0);
}
private static void KeyUp(Keys vKey) {
keybd_event((byte)vKey, 0, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
}
private void SwitchTaskView() {
/* Press Win+Tab to open the task view */
KeyDown(Keys.LWin);
KeyDown(Keys.Tab);
KeyUp(Keys.LWin);
KeyUp(Keys.Tab);
}
/*
Code used to detect if a Keyboard or mouse button is pressed or not.
If the mouse button is pressed while the cursor is at the corner of the screen,
it may indicate that a drag-and-drop operation is in progress and therefore it
is not necessary to activate the hotcorner
*/
[DllImport("user32", CharSet = CharSet.Ansi, SetLastError = true)]
private static extern int GetAsyncKeyState(int vKey);
private static bool isDown(Keys button) {
return GetAsyncKeyState((int)button) > 1;
}
/*
More infos on the RECT struct:
https://docs.microsoft.com/en-us/windows/win32/api/windef/ns-windef-rect
https://docs.microsoft.com/it-it/dotnet/api/system.runtime.interopservices.layoutkind?view=net-6.0
Needed by "systemparametersinfoa" while working with "SPI_SETWORKAREA":
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-systemparametersinfoa
*/
[StructLayout(LayoutKind.Sequential)]
struct RECT {
public Int32 left;
public Int32 top;
public Int32 right;
public Int32 bottom;
}
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool SystemParametersInfo(int uiAction, int uiParam, ref RECT pvParam, int fWinIni);
const int SPI_SETWORKAREA = 0x002F;
const int SPIF_UPDATEINIFILE = 0x0001; // https://www.pinvoke.net/default.aspx/Enums/SPIF.html
private void ExpandWorkingArea() {
/*
Code used to resize the desktop working area.
The working area is the desktop area of the display, excluding taskbars, docked windows, and docked tool
bars.
*/
RECT workingArea;
workingArea.left = 0;
workingArea.top = 0;
workingArea.right = SCREEN_WIDTH;
workingArea.bottom = SCREEN_HEIGHT;
SystemParametersInfo(SPI_SETWORKAREA, 0, ref workingArea, SPIF_UPDATEINIFILE);
}
[DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll")]
private static extern IntPtr GetDesktopWindow();
[DllImport("user32.dll")]
private static extern IntPtr GetShellWindow();
[DllImport("user32.dll", SetLastError = true)]
private static extern int GetWindowRect(IntPtr hwnd, out RECT lpRect);
public static bool CheckFullScreenForegroundApp() {
/*
Thanks to/original code:
https://github.com/RobertSmits/Windows-10-HotCorners/blob/master/Windows10.HotCorners/Business/ForegroundDetector.cs */
var desktopHandle = GetDesktopWindow();
var shellHandle = GetShellWindow();
var hWnd = GetForegroundWindow();
if (hWnd.Equals(IntPtr.Zero)) return false;
if (hWnd.Equals(desktopHandle) || hWnd.Equals(shellHandle)) return false;
RECT appBounds;
GetWindowRect(hWnd, out appBounds);
var screenBounds = Screen.FromHandle(hWnd).Bounds;
if (
(appBounds.bottom - appBounds.top) == screenBounds.Height &&
(appBounds.right - appBounds.left) == screenBounds.Width
)
return true; // Return True if Fullscreen application is found
else
return false;
}
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern IntPtr FindWindow(string strClassName, string strWindowName);
[DllImport("user32.dll", EntryPoint = "SetWindowPos")] // https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-setwindowpos
private static extern IntPtr SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int x, int Y, int cx, int cy, uint wFlags);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool IsWindowVisible(IntPtr hWnd);
const uint SWP_HIDEWINDOW = 0x0080;
const uint SWP_SHOWWINDOW = 0x0040;
const string TASKBAR_CLASSNAME_LEGACY = "System_TrayWnd";
const string TASKBAR_CLASSNAME = "Shell_TrayWnd";
private void SetTaskbarVisible(bool visible) {
IntPtr hwnd = FindWindow(TASKBAR_CLASSNAME_LEGACY, null);
if (hwnd == IntPtr.Zero)
hwnd = FindWindow(TASKBAR_CLASSNAME, null);
if (visible)
SetWindowPos(hwnd,0,0,0,0,0,SWP_SHOWWINDOW); // Show Taskbar
else
SetWindowPos(hwnd,0,0,0,0,0,SWP_HIDEWINDOW); // Hide Taskbar
}
/* [DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow(); // Already declared */
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
private static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);
[DllImport("user32.dll")]
static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
private bool IsTaskViewVisible() {
/* Get window Class Name */
const int N_CHARS = 256;
string windowClassName = "";
var hWnd = GetForegroundWindow();
StringBuilder sbWindowClassName = new StringBuilder(N_CHARS);
GetClassName(hWnd, sbWindowClassName, sbWindowClassName.Capacity);
windowClassName = sbWindowClassName.ToString();
IntPtr xamlExplorerHostIslandWindow = FindWindow("XamlExplorerHostIslandWindow", null); // Windows 11
IntPtr windowsUICoreCoreWindow = FindWindow("Windows.UI.Core.CoreWindow" , null); // Windows 10
if (windowClassName=="XamlExplorerHostIslandWindow" || windowClassName=="Windows.UI.Core.CoreWindow")
return true;
else
return false;
}
}