C# - Get console cursor position on Linux - c#

I'm trying to get the terminal's cursor's position with C#.
I did it on Windows many times. I did it thus:
public Pointer get() {
Point pos = new Point();
GetCursorPos(ref pos);
return pos;
}
[DllImport("user32.dll")]
static extern bool SetCursorPos(int X, int Y);
[DllImport("user32.dll")]
static extern bool GetCursorPos(ref Point lpPoint);
Of course this doesn't work on Linux, I'm importing Windows dlls.
How can I do this in linux?

You can use Console.SetCursorPosition
An example would be like this:
Console.Clear(); //this clears the console
Console.SetCursorPosition(Console.CursorLeft, Console.CursorTop); //this sets back to beginning
You can get the current position with this:
var CurrentCursorPositionConsole = Console.GetCursorPosition();

Related

Position a small console window to the bottom left of the screen?

As the title says, I want to position it to the bottom left corner of the screen. Here's the code I have so far:
Console.WindowWidth = 50
Console.WindowHeight = 3
Console.BufferWidth = 50
Console.BufferHeight = 3
Console.BackgroundColor = ConsoleColor.Black
Console.ForegroundColor = ConsoleColor.DarkMagenta
Console.Title = "My Title"
Console.WriteLine("")
Console.Write(" Press any key to close this window ...")
Console.ReadKey()
Note: Despite their names, setting Console.WindowLeft and Console.WindowTop of the System.Console class does not change the window's position on screen.
Instead, they position the visible part of the window relative to the (potentially larger) window buffer - you cannot use type System.Console to change the position of console windows on the screen - you need to use the Windows API for that.
The following is code for a complete console application that positions its own window in the lower left corner of the screen, respecting the location of the taskbar.
Note:
It should work with multi-monitor setups - positioning the window on the specific monitor (display, screen) it is (mostly) being displayed on - but I haven't personally verified it.
Only Windows API functions are used via P/Invoke declarations, avoiding the need for referencing the WinForms assembly (System.Windows.Forms), which is not normally needed in console applications.
You'll see that a good portion of the code is devoted to P/Invoke signatures (declaration) for interfacing with the native Windows APIs; these were gratefully adapted from pinvoke.net
The actual code in the Main() method is short by comparison.
If you compile the code below from a console-application project in Visual Studio and run the resulting executable from a cmd.exe console window (Command Prompt), that console window should shift to the lower left corner of the (containing screen).
To verify the functionality while running from Visual Studio, place a breakpoint at the closing } and, when execution pauses, Alt-Tab to the console window to verify its position.
using System;
using System.Runtime.InteropServices; // To enable P/Invoke signatures.
public static class PositionConsoleWindowDemo
{
// P/Invoke declarations.
[DllImport("kernel32.dll")]
static extern IntPtr GetConsoleWindow();
[DllImport("user32.dll")]
static extern IntPtr MonitorFromWindow(IntPtr hwnd, uint dwFlags);
const int MONITOR_DEFAULTTOPRIMARY = 1;
[DllImport("user32.dll")]
static extern bool GetMonitorInfo(IntPtr hMonitor, ref MONITORINFO lpmi);
[StructLayout(LayoutKind.Sequential)]
struct MONITORINFO
{
public uint cbSize;
public RECT rcMonitor;
public RECT rcWork;
public uint dwFlags;
public static MONITORINFO Default
{
get { var inst= new MONITORINFO(); inst.cbSize = (uint)Marshal.SizeOf(inst); return inst; }
}
}
[StructLayout(LayoutKind.Sequential)]
struct RECT
{
public int Left, Top, Right, Bottom;
}
[StructLayout(LayoutKind.Sequential)]
struct POINT
{
public int x, y;
}
[DllImport("user32.dll", SetLastError = true)]
static extern bool GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);
[DllImport("user32.dll", SetLastError = true)]
static extern bool SetWindowPlacement(IntPtr hWnd, [In] ref WINDOWPLACEMENT lpwndpl);
const uint SW_RESTORE= 9;
[StructLayout(LayoutKind.Sequential)]
struct WINDOWPLACEMENT
{
public uint Length;
public uint Flags;
public uint ShowCmd;
public POINT MinPosition;
public POINT MaxPosition;
public RECT NormalPosition;
public static WINDOWPLACEMENT Default
{
get
{
var instance = new WINDOWPLACEMENT();
instance.Length = (uint) Marshal.SizeOf(instance);
return instance;
}
}
}
public static void Main()
{
// Get this console window's hWnd (window handle).
IntPtr hWnd = GetConsoleWindow();
// Get information about the monitor (display) that the window is (mostly) displayed on.
// The .rcWork field contains the monitor's work area, i.e., the usable space excluding
// the taskbar (and "application desktop toolbars" - see https://msdn.microsoft.com/en-us/library/windows/desktop/ms724947(v=vs.85).aspx)
var mi = MONITORINFO.Default;
GetMonitorInfo(MonitorFromWindow(hWnd, MONITOR_DEFAULTTOPRIMARY), ref mi);
// Get information about this window's current placement.
var wp = WINDOWPLACEMENT.Default;
GetWindowPlacement(hWnd, ref wp);
// Calculate the window's new position: lower left corner.
// !! Inexplicably, on W10, work-area coordinates (0,0) appear to be (7,7) pixels
// !! away from the true edge of the screen / taskbar.
int fudgeOffset = 7;
wp.NormalPosition = new RECT() {
Left = -fudgeOffset,
Top = mi.rcWork.Bottom - (wp.NormalPosition.Bottom - wp.NormalPosition.Top),
Right = (wp.NormalPosition.Right - wp.NormalPosition.Left),
Bottom = fudgeOffset + mi.rcWork.Bottom
};
// Place the window at the new position.
SetWindowPlacement(hWnd, ref wp);
}
}
You can use Console.WindowTop and Console.WindowWidth of the System.Console class to set the location of the console window.
Here is an example on MSDN
The BufferHeight and BufferWidth property gets/sets the number of rows and columns to be displayed.
WindowHeight and WindowWidth properties must always be less than BufferHeight and BufferWidth respectively.
WindowLeft must be less than BufferWidth - WindowWidth and WindowTop must be less than BufferHeight - WindowHeight.
WindowLeft and WindowTop are relative to the buffer.
To move the actual console window, this article has a good example.
I have used some of your code and code from the CodeProject sample. You can set window location and size both in a single function. No need to set Console.WindowHeight and Console.WindowWidth again. This is how my class looks:
class Program
{
const int SWP_NOZORDER = 0x4;
const int SWP_NOACTIVATE = 0x10;
[DllImport("kernel32")]
static extern IntPtr GetConsoleWindow();
[DllImport("user32")]
static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter,
int x, int y, int cx, int cy, int flags);
static void Main(string[] args)
{
Console.WindowWidth = 50;
Console.WindowHeight = 3;
Console.BufferWidth = 50;
Console.BufferHeight = 3;
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.DarkMagenta;
var screen = System.Windows.Forms.Screen.PrimaryScreen.Bounds;
var width = screen.Width;
var height = screen.Height;
SetWindowPosition(100, height - 300, 500, 100);
Console.Title = "My Title";
Console.WriteLine("");
Console.Write(" Press any key to close this window ...");
Console.ReadKey();
}
/// <summary>
/// Sets the console window location and size in pixels
/// </summary>
public static void SetWindowPosition(int x, int y, int width, int height)
{
SetWindowPos(Handle, IntPtr.Zero, x, y, width, height, SWP_NOZORDER | SWP_NOACTIVATE);
}
public static IntPtr Handle
{
get
{
//Initialize();
return GetConsoleWindow();
}
}
}
Run any console application
Click RMB on headline.
Choose properties option.
choose Position tab.
Uncheck box "Automatic choice"
Set console position as you want.

Move mouse to specified point

I'd like to make a c# app that moves the mouse to a specified x,y position on the screen. I've tried a few codes I found online but none seem to work.
Try this:
System.Windows.Forms.Cursor.Position = new Point { X = xxx, Y = yyy };
Or try to use the native WinAPI for XP (or earlier):
[DllImport("user32.dll")]
public static extern long SetCursorPos(int x, int y);
public void SetCursorPosition(Point p)
{
SetCursorPos(p.X, p.Y);
}

how to get the cmd location?

i'm using c# .net 4.5;
my question is how could i get the cmd location.
for example to get my own form location i use this.Location and i'm getting the x and the y.
how could i do it for an application which is running but has nothing to do with my own app? i know it's possible because windows 8 use something like that. :)
thanks for helping...
Your question at first glance seems you want the location of the application exe and not the position of the window. If you want the position of the window you need to use API.
[StructLayout(LayoutKind.Sequential)]
public struct Rect
{
public int left;
public int top;
public int right;
public int bottom;
}
[DllImport("user32.dll")]
public static extern IntPtr GetWindowRect(IntPtr hWnd, ref Rect rect
And then use it like so:
var proc = Process.GetProcessesByName(proccessName)[0];
Rect rect = new Rect();
GetWindowRect(proc.MainWindowHandle, ref rect);
Hope it helps
For more information look at MSDN and pInvoke

How to programmatically (C# or Java) launch an app in Windows and invoke click in it's window?

There is a simple application that works in Windows. It has very simple interface: squre window with buttons in fixed coordinates.
I need to write a program that makes use of this application: to launch it and to click one of buttons (let's say invoke a click at (150,200)).
Is there any way to do it in Java or .NET?
The Java based solution is to launch the app. in a Process and use the Robot to interact with it.
The best solution on this thread was by #HFoE but deleted by a moderator. For reference, it basically came down to..
If you want to control another Windows application, use a tool that was built specifically for this such as AutoIt V3.
Since "Don't do it" seems to be considered a valid answer when an alternative is supplied (by general opinion on Meta), I cannot understand why the answer was deleted.
As Hovercraft Full Of Eels if you can - use autoit - it's much easier. If AutoIt is not an option then you will need to use winAPI functions in order to do it.
For example to call mouseclick at coordinates:
[DllImport("user32.dll")]
static extern bool SetCursorPos(int x, int y);
[DllImport("user32.dll")]
static extern bool GetCursorPos(ref Point lpPoint);
[DllImport("user32.dll")]
public static extern void mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);
public void LeftMouseClick(int xpos, int ypos) //Make a click at specified coords and return mouse back
{
Point retPoint = new Point();
GetCursorPos(ref retPoint); // set retPoint as mouse current coords
SetCursorPos(xpos, ypos); //set mouse cursor position
mouse_event(MOUSEEVENTF_LEFTDOWN, xpos, ypos, 0, 0);
mouse_event(MOUSEEVENTF_LEFTUP, xpos, ypos, 0, 0); //click made
SetCursorPos(retPoint.X, retPoint.Y); //return mouse position to coords
}
But be aware, that to make click inside a window it needs to be at front of you - you cannot click to a minimized app for example.
If you want to try - you can find all needed functions(how to run a programm, get needed window by hwnd and so on) at PInvoke
For .Net you can pretty much use AutomationElement which I prefer. There's a bit of learning time, but it shouldn't take much. You can start your app with ProcessStartInfo.
If you have VS2010 Pro or Ultimate you can use the CodedUITests to generate a couple of button pushes.
As #Hovercraft Full Of Eels suggested - Autoit, Python could do the same
Yes - in C#...
Use the Process class to start the process (there are plenty of resources on the web on how to do this.
Wait until the process has started (either just wait for a fixed amount of time which is probably going to be long enough, or you could try and do something fancy like IPC or monitoring for a window being created)
To simulate the click take a look at How to simulate Mouse Click in C#? which uses a P/Invoke call to the mouse_event function.
However note that there are several things that can go wrong with this
Someone might move the window, or place another window on top of that window in the time it takes to launch the application
On a slower PC it may take longer to load the application (this risk can be mitigated by doing things like monitoring open windows and waiting for the expected application window to appear)
In .net you can Process.Start from System.Diagnostics to launch an application, you can even pass parameters, and to simulate mouse events you can use P/Invoke there is already an answer to that on SO here
Here is my working test app to play with clicking in windows.
We just start some app and hope to click it in right place)
It would be nice to have some solution for capturing windows this way =)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;
namespace ConsoleApplication8
{
class Program
{
static void Main(string[] args)
{
var startInfo = new ProcessStartInfo(#"C:\Users\Bodia\Documents\visual studio 2010\Projects\ConsoleApplication8\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe");
startInfo.WindowStyle = ProcessWindowStyle.Maximized;
Console.WriteLine(1);
var process = Process.Start(startInfo);
Console.WriteLine(2);
Thread.Sleep(400);
Console.WriteLine(3);
LeftMouseClick(1000, 200);
Console.WriteLine(4);
}
static void CursorFun()
{
Point cursorPos = new Point();
GetCursorPos(ref cursorPos);
cursorPos.X += 100;
Thread.Sleep(1000);
SetCursorPos(cursorPos.X, cursorPos.Y);
cursorPos.X += 100;
Thread.Sleep(1000);
SetCursorPos(cursorPos.X, cursorPos.Y);
cursorPos.X += 100;
Thread.Sleep(1000);
SetCursorPos(cursorPos.X, cursorPos.Y);
cursorPos.X += 100;
Thread.Sleep(1000);
SetCursorPos(cursorPos.X, cursorPos.Y);
}
[DllImport("user32.dll")]
static extern bool SetCursorPos(int x, int y);
[DllImport("user32.dll")]
static extern bool GetCursorPos(ref Point lpPoint);
[DllImport("user32.dll")]
public static extern void mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);
public static void LeftMouseClick(int xpos, int ypos) //Make a click at specified coords and return mouse back
{
Point retPoint = new Point();
GetCursorPos(ref retPoint); // set retPoint as mouse current coords
SetCursorPos(xpos, ypos); //set mouse cursor position
mouse_event(MOUSEEVENTF_LEFTDOWN, xpos, ypos, 0, 0);
mouse_event(MOUSEEVENTF_LEFTUP, xpos, ypos, 0, 0); //click made
SetCursorPos(retPoint.X, retPoint.Y); //return mouse position to coords
}
struct Point
{
public int X;
public int Y;
}
private const int MOUSEEVENTF_LEFTDOWN = 0x02;
private const int MOUSEEVENTF_LEFTUP = 0x04;
private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
private const int MOUSEEVENTF_RIGHTUP = 0x10;
}
}

How to get mouse position related to desktop in WPF?

Problem
When you search for such question using google you get a lot of hits but all solutions assume you have at least one window.
But my question is just like I phrased it -- not assumptions at all. I can have a window, but I could have zero windows (because I didn't even show one or I just closed the last one). So in short the solution cannot rely on any widget or window -- the only thing is known, is there is a desktop (and app running, but it does not have any windows).
So the question is -- how to get the mouse position?
Background
I would like to show windows centered to mouse position. There is no such mode in WPF (there are only center to owner, or center to screen) so I have to do it manually. The missing piece is mouse position.
Edits
Thank you all, so now I have the first part of the solution -- raw position. Now there is a problem how to convert the data for WPF. I found such topic:
WPF Pixels to desktop pixels
but again, it assumes having some window.
Then I googled more and I found solution:
http://jerryclin.wordpress.com/2007/11/13/creating-non-rectangular-windows-with-interop/
the code includes class for scaling up/down coordinates relying only on info about desktop. So joining those two pieces, I finally get the solution :-). Thanks again.
Getting the Screen Coordinates:
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool GetCursorPos(out POINT lpPoint);
[StructLayout(LayoutKind.Sequential)]
public struct POINT
{
public int X;
public int Y;
public POINT(int x, int y)
{
this.X = x;
this.Y = y;
}
}
private void WritePoint(object sender, RoutedEventArgs e)
{
POINT p;
if (GetCursorPos(out p))
{
System.Console.WriteLine(Convert.ToString(p.X) + ";" + Convert.ToString(p.Y));
}
}
Converting Pixels to WPF Units:
[DllImport("User32.dll")]
static extern IntPtr GetDC(IntPtr hwnd);
[DllImport("gdi32.dll")]
static extern int GetDeviceCaps(IntPtr hdc, int nIndex);
[DllImport("user32.dll")]
static extern bool ReleaseDC(IntPtr hWnd, IntPtr hDC);
private Point ConvertPixelsToUnits(int x, int y)
{
// get the system DPI
IntPtr dDC = GetDC(IntPtr.Zero); // Get desktop DC
int dpi = GetDeviceCaps(dDC, 88);
bool rv = ReleaseDC(IntPtr.Zero, dDC);
// WPF's physical unit size is calculated by taking the
// "Device-Independant Unit Size" (always 1/96)
// and scaling it by the system DPI
double physicalUnitSize = (1d / 96d) * (double)dpi;
Point wpfUnits = new Point(physicalUnitSize * (double)x,
physicalUnitSize * (double)y);
return wpfUnits;
}
Putting both together:
private void WriteMouseCoordinatesInWPFUnits()
{
POINT p;
if (GetCursorPos(out p))
{
Point wpfPoint = ConvertPixelsToUnits(p.X, p.Y);
System.Console.WriteLine(Convert.ToString(wpfPoint.X) + ";" + Convert.ToString(wpfPoint.Y));
}
}
Two options:
Use System.Windows.Forms.Control.MousePosition, or p/invoke
[DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
public static extern bool GetCursorPos([In, Out] NativeMethods.POINT pt);
The first option already does the p/invoke for you. I'm not entirely sure it requires you have some UI splashed up, but I don't think so. Yes, its winforms and not wpf, but it really doesn't have anything to do with where its located at.
If you want to skip any dependencies on system.windows.forms.dll then check out more information about the second on pinvoke.net.
I stumbled over that thread while looking for a solution for the same problem. In the meantime, I found PointToScreen, which does not require any P/Invoke. The method is available on any Visual starting .NET 3.0 (and thus UIElement, Control, etc.) and an implementation would look like this:
protected void OnMouseLeave(object Sender, MouseEventArgs e) {
var relativePosition = e.GetPosition(this);
var screenPosition = this.PointToScreen(relativePosition);
}

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