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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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6e01fc8dce
Added new _STRCMP and _STRICMP commands for quick string comparisons. Cleaned up QB64 to finish removing the QUI (quick user insert) code and folders. Altered UCASE and LCASE routines to be faster in some situations for us.
42 lines
1.7 KiB
Plaintext
42 lines
1.7 KiB
Plaintext
The '''_MOUSEMOVEMENTY''' function returns the relative vertical position of the mouse cursor as positive or negative values.
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{{PageSyntax}}
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::: verticalmove = '''_MOUSEMOVEMENTY'''
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* Returns the relative vertical cursor pixel position compared to the previous cursor position. Negative values are up moves.
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* '''Hides the mouse cursor''' once inside the program window area. This may lead to some ''"confusion"'' by the user!
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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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''Example:'' MOD is used to keep vertical movement of circle and cursor inside of the SCREEN 13 window(200).
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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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''See also:''
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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}} |