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56 lines
2.2 KiB
Markdown
56 lines
2.2 KiB
Markdown
The [_MOUSEMOVE](_MOUSEMOVE) statement moves the mouse pointer to a new position on the screen as determined by the column and row coordinates.
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## Syntax
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> [_MOUSEMOVE](_MOUSEMOVE) column%, row%
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## Parameter(s)
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* column% is the horizontal pixel coordinate to place the mouse pointer and can be any value from 0 to [_WIDTH (function)](_WIDTH-(function))(0) - 1.
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* row% is the vertical pixel position to place the mouse pointer and can be any value from 0 to [_HEIGHT](_HEIGHT)(0) - 1
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## Description
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* Maximum coordinate values are based on a program's current [SCREEN](SCREEN) mode resolution or the pixel size set by [_NEWIMAGE](_NEWIMAGE).
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* [SCREEN](SCREEN) 0 uses text block coordinates. **Coordinates off the screen area will create an "Illegal Function Call" [ERROR Codes](ERROR-Codes)**
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* Can be used to position the pointer to a default dialog button or move the cursor away from a button so it is not clicked twice.
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* Does not require [_MOUSEINPUT](_MOUSEINPUT) to be used, but all moves will be remembered and can be read by mouse functions.
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## Availability
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* Versions prior to 1.000 (Version 1.000 had this function disabled for compatibility reasons).
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* Version 1.1 and up.
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## Example(s)
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How to move the mouse cursor using remembered mouse movements. Press any key to quit.
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```vb
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SCREEN 12
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i = _MOUSEINPUT 'start reading mouse events before INPUT to hold in memory
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PRINT
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INPUT "Move the mouse pointer and make a few clicks, then press Enter!", dummy$
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_MOUSEMOVE 1, 1
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DO: _LIMIT 30
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count = count + 1
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i = _MOUSEINPUT
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x = _MOUSEX: y = _MOUSEY
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b = _MOUSEBUTTON(1)
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PRINT count, x, y, b
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_MOUSEMOVE x, y
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LOOP UNTIL i = 0 OR INKEY$ > ""
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PRINT "Done!"
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```
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> *Explanation:* The [_MOUSEINPUT](_MOUSEINPUT) function will hold previous and _MOUSEMOVE events so press any key when you want to quit.
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> **Note: [INPUT](INPUT), [INPUT$](INPUT$) and [LINE INPUT](LINE-INPUT) will allow continued reading of mouse events while awaiting program user input!**
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> It is recommended that a [WHILE](WHILE) [_MOUSEINPUT](_MOUSEINPUT): [WEND](WEND) loop be used immediately after to clear stored mouse events.
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## See Also
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* [_MOUSEX](_MOUSEX), [_MOUSEY](_MOUSEY)
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* [_NEWIMAGE](_NEWIMAGE), [_SCREENIMAGE](_SCREENIMAGE)
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