2022-07-31 21:57:56 +00:00
{{QBDLDATE:07-31-2022}}
{{QBDLTIME:23:38:52}}
2022-05-20 22:18:31 +00:00
{{DISPLAYTITLE:_MOUSEMOVEMENTX}}
The [[_MOUSEMOVEMENTX]] function returns the relative horizontal position of the mouse cursor as positive or negative values.
{{PageSyntax}}
: ''horizontalMove'' = [[_MOUSEMOVEMENTX]]
* Returns the relative horizontal cursor pixel position compared to the previous cursor position. Negative values are moves to the left.
* '''Note:''' A [[_MOUSESHOW]] statement will disable [[_MOUSEMOVEMENTX]] or [[_MOUSEMOVEMENTY]] relative mouse movement reads.
* Can also be used to check for any mouse movements to enable a program or close [[Screen Saver Programs]].
* Sets the mouse to a relative movement mode which can be read by [[_WHEEL]] instead of [[_AXIS]] as mouse [[_DEVICES|device]] 2.
{{PageExamples}}
''Example 1:'' Since values returned are relative to the last position, the returns can be positive or negative.
{{CodeStart}}
{{Cl|SCREEN}} 12
PX = 320: PY = 240 'center position
{{Cl|DO...LOOP|DO}}: {{Cl|_LIMIT}} 200
{{Cl|DO...LOOP|DO}} {{Cl|WHILE}} {{Cl|_MOUSEINPUT}}
PX = PX + {{Cl|_MOUSEMOVEMENTX}}
PY = PY + {{Cl|_MOUSEMOVEMENTY}}
{{Cl|LOOP}}
{{Cl|CLS}}
{{Cl|CIRCLE}} (PX, PY), 10, 10
{{Cl|LOCATE}} 1, 1: {{Cl|PRINT}} PX, PY
{{Cl|LOOP}} {{Cl|UNTIL}} {{Cl|INKEY$}} = {{Cl|CHR$}}(27) 'escape key exit
{{CodeEnd}}
''Example 2:'' MOD is used to keep horizontal movement of the circle and cursor inside of the SCREEN 13 window(320).
{{CodeStart}}
{{Cl|SCREEN}} 13, , 1, 0
{{Cl|DO...LOOP|DO}}: {{Cl|_LIMIT}} 200
{{Cl|DO...LOOP|DO}} {{Cl|WHILE}} {{Cl|_MOUSEINPUT}}
x = x + {{Cl|_MOUSEMOVEMENTX}}
y = y + {{Cl|_MOUSEMOVEMENTY}}
{{Cl|LOOP}}
x = (x + 320) {{Cl|MOD}} 320 'keeps object on screen
y = (y + 200) {{Cl|MOD}} 200 'remove if off screen moves are desired
{{Cl|CLS}}
{{Cl|CIRCLE}} (x, y), 20
{{Cl|PCOPY}} 1, 0
{{Cl|LOOP}} {{Cl|UNTIL}} {{Cl|INKEY$}} <> "" 'press any key to exit
{{CodeEnd}}
: '''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.
{{PageSeeAlso}}
* [[_MOUSEMOVEMENTY]]
* [[_MOUSEINPUT]], [[_MOUSEX]]
* [[_DEVICES]], [[_DEVICEINPUT]]
* [[_WHEEL]], [[_LASTWHEEL]]
* [[_AXIS]], [[_LASTAXIS]]
* [[_MOUSESHOW]], [[_MOUSEHIDE]]
* [[Screen Saver Programs]]
{{PageNavigation}}