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--- function:SCREEN [2017/03/05 21:39]
peternlewis [Forum]
+++ function:SCREEN [2023/02/17 01:56]
peternlewis
@@ Line 1: / Line 1: @@
-The [[function:SCREEN|SCREEN()]] and [[function:SCREENVISIBLE|SCREENVISIBLE()]] functions return the position or size of a screen.  [[function:SCREENVISIBLE|SCREENVISIBLE()]] refers to the visible section of the screen, excluding the menu bar and the dock.
+====== SCREEN, SCREENVISIBLE and SCREENINDEX Functions ======
-    SCREEN( index, coordinate )
+The //SCREEN()// and //SCREENVISIBLE()// functions return the position or size of a screen.  //SCREENVISIBLE()// refers to the visible section of the screen, excluding the menu bar and the dock.
-    SCREEN( index, coordinate, percentage )
-The SCREEN *index* can be 0 for the main screen, and then 1 through n are the screens in orientation order from left to right (and top down for screens at the same position). The index can also be one of:
+The //SCREENINDEX()// function returns (v10.0+) the actual index of the specified screen, counting from left to right.
-* Main - the screen with the primary menu bar (as configured in the Displays preferences).
+```
-* Second - the left most screen that does not have the menu bar.
+SCREEN( index [number OR name], coordinate )
-* Third - the left most screen that is not the Main or Second screen.
+SCREEN( index [number OR name], coordinate, percentage )
-* Internal - the left most screen that is an internal screen (typically on a laptop).
+```
-* External - the left most screen that is not an internal screen.
-* Mouse - the left most screen containing the mouse.
+The SCREEN *index* can be referenced by either a _number_ OR a _name_.  The _Index number_ can be 0 for the main screen, and then 1 through n are the screens in orientation order from left to right (and top down for screens at the same position).  _Index Names_ are shown below.
-* Front - the left most screen containing (the most of) the front window.
-* Back - the left most screen not containing (the most of) the front window.
+The _Main_ screen is set by your macOS System Preferences.
-* Back2 - the second left most screen not containing (the most of) the front window.
+The other screens (monitors) are referenced positionally from the left most screen, which may, or _may not_, be the _Main_ screen.
+^ Index Name ^ Description ^
+| Main or 0 | the screen with the primary menu bar (as configured in the Displays preferences).|
+| Second |the first from the left which is not the _Main_ screen.|
+| Third | the second from the left which is not the _Main_ screen.|
+| Internal | the internal screen of the Mac.|
+| External | the first from the left which is not an internal screen.|
+| Mouse | the screen containing the mouse.|
+| Front | the screen containing (the most of) the front window.|
+| Back | the first from the left not containing (the most of) the front window.|
+| Back2 | the second left most screen not containing (the most of) the front window.|
+| Positive Calculation | the indexed screen from left to right. |
+| Negative Calculation | the indexed screen from right to left. |
+| Variable Name | the index value based on the value of the variable (v9.0+). |
+:!: Note: Since the _Main_ screen can be in any position:
+  * SCREEN(0) is always the _Main_ screen.
+  * SCREEN(1) may or may not be the _Main_ screen.
+  * SCREEN(2+) may or may not be the _Main_ screen.
 The SCREEN *coordinate* can be:
@@ Line 26: / Line 45: @@
 * MidX
 * MidY
+* Index (v9.0+)
 The optional SCREEN *percentage* parameter specifies a percentage of the width or height to offset by. Offsets are always to the right and down, but negative offsets are allowed.
@@ Line 33: / Line 53: @@
 SCREEN sizes and positions are in //nominal resolution pixels// (so a retina screen will typically have half as many nominal resolution pixels as raw pixels).
-Coordinates are in absolute coordinates (relative to the top left corner of the main screen).
+Coordinates are in absolute nominal resolution pixels relative to the top left corner of the main screen.
 ===== See Also =====
-----
 ==== Actions ====
-* [[action:Manipulate a Window|Manipulate a Window]]
+* [[action:Manipulate a Window|Manipulate a Window]] action
-* [[action:Move or Click Mouse|Move or Click Mouse]]
+* [[action:Move or Click Mouse|Move or Click Mouse]] action
 * [[:Actions|See all Actions]]
 ==== Functions ====
-* [[function:MENUBARHEIGHT|MENUBARHEIGHT()]]
+* [[function:MENUBARHEIGHT|MENUBARHEIGHT()]] function
-* [[function:MOUSEBUTTON|MOUSEBUTTON()]]
+* [[function:MOUSEBUTTON|MOUSEBUTTON()]] function
-* [[function:MOUSEX|MOUSEX()]]
+* [[function:MOUSEX|MOUSEX()]] function
-* [[function:MOUSEY|MOUSEY()]]
+* [[function:MOUSEY|MOUSEY()]] function
-* [[function:SCREENCOUNT|SCREENCOUNT()]]
+* [[function:SCREENCOUNT|SCREENCOUNT()]] function
-* [[function:WINDOW|WINDOW()]]
+* [[function:WINDOW|WINDOW()]] function
-* [[function:WINDOWCOUNT|WINDOWCOUNT()]]
+* [[function:WINDOWCOUNT|WINDOWCOUNT()]] function
 * [[:Functions|See all Functions]]
 === Tokens ===
-* [[token:Screen|%Screen%]]
+* [[token:Screen|%Screen%]] token
-* [[token:ScreenVisible|%ScreenVisible%]]
+* [[token:ScreenVisible|%ScreenVisible%]] token
 * [[:Tokens|See all Tokens]]
-----
 ==== Forum ====
-- [[https://forum.keyboardmaestro.com/t/i-need-a-conditional-if-there-are-two-monitors/3031/5|I need a conditional if there are two monitors]]
+- [[https://forum.keyboardmaestro.com/t/i-need-a-conditional-if-there-are-two-monitors/3031/|I need a conditional if there are two monitors]]
 - [[https://forum.keyboardmaestro.com/search?q=Screen|Keyboard Maestro Forum topics about Screen]]

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