mirror of
https://github.com/QB64Official/qb64.git
synced 2024-07-16 20:05:14 +00:00
61 lines
1.9 KiB
Markdown
61 lines
1.9 KiB
Markdown
|
The [_MOUSEMOVEMENTX](_MOUSEMOVEMENTX) function returns the relative horizontal position of the mouse cursor as positive or negative values.
|
||
|
|
|
||
|
|
## Syntax
|
||
|
|
|
||
|
|
> *horizontalMove* = [_MOUSEMOVEMENTX](_MOUSEMOVEMENTX)
|
||
|
|
|
||
|
|
* Returns the relative horizontal cursor pixel position compared to the previous cursor position. Negative values are moves to the left.
|
||
|
|
* Can also be used to check for any mouse movements to enable a program or close [Screen Saver Programs](Screen-Saver-Programs).
|
||
|
|
* On Windows only, [_MOUSEMOVEMENTX](_MOUSEMOVEMENTX) will continue to track the mouse when it is outside the program window.
|
||
|
|
|
||
|
|
## Example(s)
|
||
|
|
|
||
|
|
Since values returned are relative to the last position, the returns can be positive or negative.
|
||
|
|
|
||
|
|
```vb
|
||
|
|
|
||
|
|
SCREEN 12
|
||
|
|
PX = 320: PY = 240 'center position
|
||
|
|
DO: _LIMIT 200
|
||
|
|
DO WHILE _MOUSEINPUT
|
||
|
|
PX = PX + _MOUSEMOVEMENTX
|
||
|
|
PY = PY + _MOUSEMOVEMENTY
|
||
|
|
LOOP
|
||
|
|
CLS
|
||
|
|
CIRCLE (PX, PY), 10, 10
|
||
|
|
LOCATE 1, 1: PRINT PX, PY
|
||
|
|
LOOP UNTIL INKEY$ = CHR$(27) 'escape key exit
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
MOD is used to keep horizontal movement of the circle and cursor inside of the SCREEN 13 window(320).
|
||
|
|
|
||
|
|
```vb
|
||
|
|
|
||
|
|
SCREEN 13, , 1, 0
|
||
|
|
DO: _LIMIT 200
|
||
|
|
DO WHILE _MOUSEINPUT
|
||
|
|
x = x + _MOUSEMOVEMENTX
|
||
|
|
y = y + _MOUSEMOVEMENTY
|
||
|
|
LOOP
|
||
|
|
x = (x + 320) MOD 320 'keeps object on screen
|
||
|
|
y = (y + 200) MOD 200 'remove if off screen moves are desired
|
||
|
|
CLS
|
||
|
|
CIRCLE (x, y), 20
|
||
|
|
PCOPY 1, 0
|
||
|
|
LOOP UNTIL INKEY$ <> "" 'press any key to exit
|
||
|
|
|
||
|
|
```
|
||
|
|
|
||
|
|
> **NOTE:** When using the function this way, give the user a keypress exit option. Make sure the user has some way to exit that is not dependent on clicking the X button.
|
||
|
|
|
||
|
|
## See Also
|
||
|
|
|
||
|
|
* [_MOUSEMOVEMENTY](_MOUSEMOVEMENTY)
|
||
|
|
* [_MOUSEINPUT](_MOUSEINPUT), [_MOUSEX](_MOUSEX)
|
||
|
|
* [_DEVICES](_DEVICES), [_DEVICEINPUT](_DEVICEINPUT)
|
||
|
|
* [_WHEEL](_WHEEL), [_LASTWHEEL](_LASTWHEEL)
|
||
|
|
* [_AXIS](_AXIS), [_LASTAXIS](_LASTAXIS)
|
||
|
|
* [_MOUSESHOW](_MOUSESHOW), [_MOUSEHIDE](_MOUSEHIDE)
|
||
|
|
* [Screen Saver Programs](Screen-Saver-Programs)
|