Pressing the backspace key on a computer terminal would generate the ASCII code 08, BS or Backspace, a control code which would delete the preceding character. That control code could also be accessed by pressing Control-H, as H is the eighth letter of the Latin alphabet. Dll files fixer serial key generator for synapse x. Hitting arrow keys adds characters in vi editor. Ask Question Asked 6 years. Here's the key combinations needed to produce them (showing first one only). Backspace in insert mode in vi doesn't erase the character. Using vi to edit a file in terminal. Full list of Alt codes. Contains both 1 - 256 and 0128 - 0256 code ranges. Numbers you can type on your keyboard's Num Pad to get special symbols. Complete table with all Alt codes and characters that they produce.
Backspace is the keyboard key (sometimes labeled as: ← ) that originally pushed the typewriter carriage one position backwards, and for modern computer screens, moves the cursor one position backwards, deletes the preceding character, and shifts back the text after it by one position.
In typewriters, a typist would, for example, type a lowercase letter 'a' with acute accent (á) by typing a lowercase letter 'a' then backspace, and then the acute accent key (also known as overstrike). This is the basis for such spacing modifiers in computer character sets such as the ASCII caret (^, for the circumflex accent). Backspace composition no longer works with digital displays or typesetting systems. It has to some degree been replaced with the combining diacritical marks mechanism of Unicode, though such characters do not work well with many fonts, and precomposed characters continue to be used. Some software like TeX or Microsoft Windows use the opposite method for diacritical marks, namely positioning the accent first, and then placing the base letter at that position.
Pressing the backspace key on a computer terminal would generate the ASCII code 08, BS or Backspace, a control code which would delete the preceding character. That control code could also be accessed by pressing Control-H, as H is the eighth letter of the Latin alphabet. Terminals which did not have the backspace code mapped to the function of moving the cursor backwards and deleting the preceding character would display the symbols ^H (caret, H – see Caret notation) when the backspace key was pressed. This sequence is still used humorously for epanorthosis by computer literates, denoting the deletion of a pretended blunder, much like a strikethrough.
Example:
A more concise alternative sometimes seen is ^W, which is the shortcut to delete the previous word in the Berkeley Unix terminal line discipline. One ^W can replace a whole string of ^H's. This shortcut has also made it into the Vi text editor. For really embarrassing blunders, ^U (kill line) can outdo a series of ^W.
The backspace is distinct from the delete key, which in paper media for computers would punch out all the holes to strike out a character, and in modern computers deletes text following it. Also, the delete key often works as a generic command to remove an object (such as an image inside a document, or a file in a file manager), while backspace usually has no effect.
In modern systems, the backspace key is often mapped to the delete character (0x7f in ASCII or Unicode), although the backspace key's function of deleting the character before the cursor remains.[1]
In a mainframe environment, to backspace means to move a magnetic tape backwards, typically to the previous block.
The backspace key is commonly used to go back a page when exploring folders in graphical environments, or when browsing the Web in web browsers.
Although the term 'backspace' is the standard name of the key which deletes the character to the left of the cursor, the actual key may be labelled in a variety of ways, for example delete,[2]Erase (for example in XO-1, One Laptop Per Child),[3] or with a left pointing arrow.[1]
Sends keystrokes to the active application.
expression.SendKeys (Keys, Wait)
expression A variable that represents an Application object.
| Name | Required/Optional | Data type | Description |
|---|---|---|---|
| Keys | Required | Variant | The key or key combination that you want to send to the application, as text. |
| Wait | Optional | Variant | True to have Microsoft Excel wait for the keys to be processed before returning control to the macro. False (or omitted) to continue running the macro without waiting for the keys to be processed. |
This method places keystrokes in a key buffer. In some cases, you must call this method before you call the method that will use the keystrokes. For example, to send a password to a dialog box, you must call the SendKeys method before you display the dialog box.
The Keys argument can specify any single key or any key combined with Alt, Ctrl, or Shift (or any combination of those keys). Each key is represented by one or more characters, such as 'a' for the character a, or '{ENTER}' for the Enter key.
To specify characters that aren't displayed when you press the corresponding key (for example, Enter or Tab), use the codes listed in the following table. Each code in the table represents one key on the keyboard.
| Key | Code |
|---|---|
| BACKSPACE | {BACKSPACE} or {BS} |
| BREAK | {BREAK} |
| CAPS LOCK | {CAPSLOCK} |
| CLEAR | {CLEAR} |
| DELETE or DEL | {DELETE} or {DEL} |
| DOWN ARROW | {DOWN} |
| END | {END} |
| ENTER (numeric keypad) | {ENTER} |
| ENTER | ~ (tilde) |
| ESC | {ESCAPE} or {ESC} |
| HELP | {HELP} |
| HOME | {HOME} |
| INS | {INSERT} |
| LEFT ARROW | {LEFT} |
| NUM LOCK | {NUMLOCK} |
| PAGE DOWN | {PGDN} |
| PAGE UP | {PGUP} |
| RETURN | {RETURN} |
| RIGHT ARROW | {RIGHT} |
| SCROLL LOCK | {SCROLLLOCK} |
| TAB | {TAB} |
| UP ARROW | {UP} |
| F1 through F15 | {F1} through {F15} |
You can also specify keys combined with Shift and/or Ctrl and/or Alt. To specify a key combined with another key or keys, use the following table.
| To combine a key with | Precede the key code with |
|---|---|
| Shift | + (plus sign) |
| Ctrl | ^ (caret) |
| Alt | % (percent sign) |
This example uses the SendKeys method to quit Microsoft Excel.
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