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