Introducction
TIMEOUT - Delay that allows the user to press a key and continue immediately. PowerShell: Pause Equivalent bash command (Linux): read -p 'press any key to continue' or ctrl-z & fg. If i press Ok the script execution continues and if i click on Cancel, execution stops at that point but i believe that i not the purpose of read-host ( i expects an input from user ). Is there any cmdlet or procedure to prompt the user to just stop or continue the execution of powershell script. Please let me know, thanks in advance. It is important to note that this method is only available in the PowerShell console this does not work in the PowerShell Integrated Scripting Environment (ISE). A simple example: You might require your script to ask for Yes / No, using the Read-Host would allow the user to type in more than one character and the enter key would have to be pressed.
Each key is represented by one or more characters. To specify a single keyboard character, use the character itself. For example, to represent the letter A, pass in the string «A» to the method. To represent more than one character, append each additional character to the one preceding it. To represent the letters A, B, and C, specify the parameter as «ABC».
The plus sign (+), caret (^), percent sign (%), tilde (~), and parentheses () have special meanings to SendKeys. To specify one of these characters, enclose it within braces ({}). For example, to specify the plus sign, use «{+}». To specify brace characters, use «{{}» and «{}}». Brackets ([ ]) have no special meaning to SendKeys, but you must enclose them in braces. In other applications, brackets do have a special meaning that might be significant when dynamic data exchange (DDE) occurs.
To specify characters that aren’t displayed when you press a key, such as ENTER or TAB, and keys that represent actions rather than characters, use the codes in the following table.
To specify keys combined with any combination of the SHIFT, CTRL, and ALT keys, precede the key code with one or more of the following codes.
Examples
2 4 6 | [System.Windows.Forms.SendKeys]::SendWait('Hi') [System.Windows.Forms.SendKeys]::SendWait('{ENTER}') [System.Windows.Forms.SendKeys]::SendWait('{RIGHT 5}') |
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-->Definition
Obtains the next character or function key pressed by the user.
Overloads
ReadKey() | Obtains the next character or function key pressed by the user. The pressed key is displayed in the console window. |
ReadKey(Boolean) | Obtains the next character or function key pressed by the user. The pressed key is optionally displayed in the console window. |
Obtains the next character or function key pressed by the user. The pressed key is displayed in the console window.
Returns
- ConsoleKeyInfo
An object that describes the ConsoleKey constant and Unicode character, if any, that correspond to the pressed console key. The ConsoleKeyInfo object also describes, in a bitwise combination of ConsoleModifiers values, whether one or more Shift, Alt, or Ctrl modifier keys was pressed simultaneously with the console key.
Exceptions
The In property is redirected from some stream other than the console.
Examples
One of the most common uses of the ReadKey() method is to halt program execution until the user presses a key and the app either terminates or displays an additional window of information. The following example uses the ReadKey() method to wait for the user to press the Enter key before terminating the app.
Note that this overload of the ReadKey method by default echoes any displayable keys that the user presses to the console. To suppress them, call the ReadKey method with an intercept
argument of true
.
The following example uses the ReadKey() method to display information about which key the user pressed.
Remarks
The ReadKey method waits, that is, blocks on the thread issuing the ReadKey method, until a character or function key is pressed. A character or function key can be pressed in combination with one or more Alt, Ctrl, or Shift modifier keys. However, pressing a modifier key by itself will not cause the ReadKey method to return.
Depending on your application, you might want to use the ReadKey method in conjunction with the KeyAvailable property.
The ReadKey method reads from the keyboard even if the standard input is redirected to a file with the SetIn method.
See also
Applies to
Obtains the next character or function key pressed by the user. The pressed key is optionally displayed in the console window.
Parameters
- intercept
- Boolean
Determines whether to display the pressed key in the console window. true
to not display the pressed key; otherwise, false
.
Returns
- ConsoleKeyInfo
An object that describes the ConsoleKey constant and Unicode character, if any, that correspond to the pressed console key. The ConsoleKeyInfo object also describes, in a bitwise combination of ConsoleModifiers values, whether one or more Shift, Alt, or Ctrl modifier keys was pressed simultaneously with the console key.
Exceptions
The In property is redirected from some stream other than the console.
Examples
One of the most common uses of the ReadKey method is to halt program execution until the user presses a key and the app either terminates or displays an additional window of information. The following example uses the ReadKey(Boolean) method to wait for the user to press the Enter key before terminating the app. Note that, if the user presses any other key, it is not echoed to the console.
The following example uses the ReadKey(Boolean) method to display information about the key pressed by a user without echoing that key to the console.
Remarks
The ReadKey method waits, that is, blocks on the thread issuing the ReadKey method, until a character or function key is pressed. A character or function key can be pressed in combination with one or more Alt, Ctrl, or Shift modifier keys. However, pressing a modifier key by itself will not cause the ReadKey method to return.
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If the intercept
parameter is true
, the pressed key is intercepted and not displayed in the console window; otherwise, the pressed key is displayed.
Depending on your application, you might want to use the ReadKey method in conjunction with the KeyAvailable property.
The ReadKey method reads from the keyboard even if the standard input is redirected to a file with the SetIn method.