C# Class WindowsContextTracker.Helpers.ScreenshotChangedTracker

A helper class that tracks a users changes. If at least one of the following conditions applies, the new screenshot is also being processed. Otherwise, it is deleted and the tracker waits for the next interval's screenshot. The conditions are: - A change is if the user changes the window/programe he is using. - A change is if the user types some text (above a threshold). - A change is if the user scrolls through text (above a threshold).

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Public Methods

Method	Description
GetProcessName ( ) : string	This method gets the foreground window and returns the process name if available. (also used to store OCR info)
GetWindowText ( ) : string	This method gets the foreground window and returns the window title if available. (also used to store OCR info)
ScreenshotChangedTracker ( ) : System	register mouse & keyboard events
WindowChanged ( ) : bool

Private Methods

Method	Description
ChangeAsOfMajorClicking ( ) : bool	Change if user clicked more than threshold
ChangeAsOfMajorScrolling ( ) : bool	Change if user scrolled more than threashold
ChangeAsOfMajorTyping ( ) : bool	Change if user typed more than threshold
ChangeAsOfWindowChanged ( ) : bool	Change if window changed
GetForegroundWindow ( ) : IntPtr
GetProcessName ( uint processId ) : string	Returns the name of the current process, given the id of the process
GetWindowText ( IntPtr hWnd, StringBuilder lpString, int nMaxCount ) : int
GetWindowText ( IntPtr hwnd ) : string	Gets the window title
GetWindowTextLength ( IntPtr hWnd ) : int
GetWindowThreadProcessId ( IntPtr hWnd, uint &lpdwProcessId ) : uint
IsWindow ( IntPtr hWnd ) : bool
KeyboardListener_KeyDown ( object sender, KeyEventArgs e ) : void	sums up the number of keystrokes within a time interval
MouseListener_MouseClicking ( object sender, MouseEventArgs e ) : void	sums up the mouse clicks within a time interval
MouseListener_MouseScrolling ( object sender, MouseEventArgs e ) : void	sums up the distance scrolled within a time interval
ResetVariables ( ) : void	Reset everything to track for next interval

Method Details

GetProcessName() public method

This method gets the foreground window and returns the process name if available. (also used to store OCR info)

public GetProcessName ( ) : string
return	string

GetWindowText() public method

This method gets the foreground window and returns the window title if available. (also used to store OCR info)

public GetWindowText ( ) : string
return	string

ScreenshotChangedTracker() public method

public ScreenshotChangedTracker ( ) : System
return	System

WindowChanged() public method

public WindowChanged ( ) : bool
return	bool