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120 lines
6.6 KiB
Plaintext
120 lines
6.6 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:08:49}}
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{{DISPLAYTITLE:_KEYHIT}}
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The [[_KEYHIT]] function returns [[ASCII]] one and two byte, OpenGL Virtual Key and Unicode keyboard key press codes.
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{{PageSyntax}}
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:{{Parameter|keycode&}} = [[_KEYHIT]]
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{{PageDescription}}
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* Return values range up to &H40000000 so use a [[LONG]] or [[_INTEGER64]] variable type. See the [[_KEYDOWN]] code list:
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:* 0-255: [[ASCII]] values (Refer to [http://en.wikipedia.org/wiki/Code_page_437 CP437]).
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:* 256-65535: [[ASCII#Two_Byte_Codes|2-byte]] character codes : code = [[CVI]]([[CHR$]](0) + [[CHR$]](scancode)) (unaffected by SHIFT/ALT/CTRL modifiers).
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:* 65536-&H40000000: [[_KEYDOWN|QB64-specific Virtual Key codes]] (designated with + for 100000 on keyboard below)
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:* '''Negative''' [[LONG]] values returned indicate that a key was released or a lock function key has been turned off.
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* '''Note: _KEYHIT can only return one value at a time so use the [[_KEYDOWN]] keyhit value to find key combinations.'''
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* To receive input from a [[$CONSOLE]] window, use [[_CINP]].
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{{WhiteStart}}' '''_KEYHIT Keyboard Codes'''
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'
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' '''Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 Sys ScL Pause'''
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' 27 15104 15360 15616 15872 16128 16384 16640 16896 17152 17408 34048 34304 +316 +302 +019
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' '''`~ 1! 2@ 3# 4$ 5% 6^ 7& 8* 9( 0) -_ =+ BkSp Ins Hme PUp NumL / * -'''
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' 126 33 64 35 36 37 94 38 42 40 41 95 43 8 20992 18176 18688 +300 47 42 45
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' '' 96 49 50 51 52 53 54 55 56 57 48 45 61''
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' '''Tab Q W E R T Y U I O P [{ ]} \| Del End PDn 7Hme 8/▲ 9PU + '''
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' 9 81 87 69 82 84 89 85 73 79 80 123 125 124 21248 20224 20736 18176 18432 18688 43
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' '' 113 119 101 114 116 121 117 105 111 112 91 93 92 55 56 57 ''
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' '''CapL A S D F G H J K L ;: '" Enter 4/◄- 5 6/-►
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' +301 65 83 68 70 71 72 74 75 76 58 34 13 19200 19456 19712 '''E'''
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' '' 97 115 100 102 103 104 106 107 108 59 39 52 53 54 '' '''n'''
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' '''Shift Z X C V B N M ,< .> /? Shift ▲ 1End 2/▼ 3PD t'''
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' +304 90 88 67 86 66 78 77 60 62 63 +303 18432 20224 20480 20736 '''e'''
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' '' 122 120 99 118 98 110 109 44 46 47 49 50 51 '' '''r'''
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' '''Ctrl Win Alt Spacebar Alt Win Menu Ctrl ◄- ▼ -► 0Ins .Del '''
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' +306 +311 +308 32 +307 +312 +319 +305 19200 20480 19712 20992 21248 13
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' '' 48 46''
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'
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' ''' Lower value = LCase/NumLock On __________________ + = add 100000 '''
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{{WhiteEnd}}
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{{small|NOTE: The above commented table can be copied and pasted directly into the QB64 IDE}}
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:* >= &H40000000: [[Unicode]].
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* Font '''cyberbit.ttf''', included with QB64 ('''version 0.92 and up'''), is required to facilitate the '''IME'''(in Chinese settings) only. The 12.7 MB font is free for '''non-commercial''' use and is not loaded unless the user switches to the '''Input Mode Editor'''. Set to "UNICODE".
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<center>'''[http://www.fileformat.info/tip/microsoft/enter_unicode.htm Setting up the Unicode Input Method Editor in Windows]'''</center>
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<center>If you need help with IME support in '''Vista''' see the following article: [http://blogs.msdn.com/b/michkap/archive/2006/07/20/671835.aspx Setting up IME in Vista]</center>
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* QB64 can use several Windows fonts when '''cyberbit''' is not present so it is not necessary to include with program packages.
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* An '''important difference''' between [[INKEY$]] and _KEYHIT is how they work when '''CTRL, ALT''' or '''SHIFT''' are used. INKEY$ returns a different code if you hold down CTRL, ALT or SHIFT before pressing F1 (for example). _KEYHIT will return the same code regardless of which modifiers were used but you can check [[_KEYDOWN]] to see which modifying keys are being used.
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* '''Keyboards with an Alt Gr key note:''' _KEYHIT may return both Alt (100307) and Ctrl (100306) codes when AltGr key is pressed or released.
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{{PageExamples}}
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''Example:'' This routine will return the codes for any keyboard presses.
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{{CodeStart}}
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{{Cl|DEFLNG}} A-Z
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{{Cl|SCREEN (statement)|SCREEN}} {{Cl|_NEWIMAGE}}(800, 600, 8)
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{{Cl|CLS}} , 1
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font = {{Cl|_LOADFONT}}("cyberbit.ttf", 24)
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unifont = {{Cl|_LOADFONT}}("cyberbit.ttf", 24, "UNICODE")
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{{Cl|_FONT}} font
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{{Cl|DO}}
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x = {{Cl|_KEYHIT}}
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{{Cl|IF}} x {{Cl|THEN}}
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{{Cl|IF}} x < 0 {{Cl|THEN}} 'negative value means key released
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{{Cl|COLOR}} 2
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{{Cl|PRINT}} "Released ";
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x = -x
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{{Cl|ELSE}}
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{{Cl|COLOR}} 10
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{{Cl|PRINT}} "Pressed "; 'positive value means key pressed
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{{Cl|END IF}}
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{{Cl|IF}} x < 256 {{Cl|THEN}} 'ASCII code values
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{{Cl|PRINT}} "{{Cl|ASC}}II "; x;
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{{Cl|IF}} x >= 32 {{Cl|AND (boolean)|AND}} x <= 255 {{Cl|THEN}} {{Cl|PRINT}} "[" + {{Cl|CHR$}}(x) + "]" {{Cl|ELSE}} {{Cl|PRINT}}
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{{Cl|END IF}}
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{{Cl|IF}} x >= 256 {{Cl|AND (boolean)|AND}} x < 65536 {{Cl|THEN}} '2 byte key codes
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{{Cl|PRINT}} "2-BYTE-{{Cl|COM}}BO "; x {{Cl|AND (boolean)|AND}} 255; x \ 256;
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x2 = x \ 256
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{{Cl|IF}} x2 >= 32 {{Cl|AND (boolean)|AND}} x2 <= 255 {{Cl|THEN}} {{Cl|PRINT}} "[" + {{Cl|CHR$}}(x2) + "]" {{Cl|ELSE}} {{Cl|PRINT}}
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{{Cl|END IF}}
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{{Cl|IF}} x >= 100000 {{Cl|AND (boolean)|AND}} x < 200000 {{Cl|THEN}} 'QB84 Virtual Key codes
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{{Cl|PRINT}} "SDL VK"; x - 100000
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{{Cl|END IF}}
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{{Cl|IF}} x >= 200000 {{Cl|AND (boolean)|AND}} x < {{Cl|&H}}40000000 {{Cl|THEN}}
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{{Cl|PRINT}} "QB64 VK"; x - 200000
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{{Cl|END IF}}
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{{Cl|IF}} x >= {{Cl|&H}}40000000 {{Cl|THEN}} 'Unicode values (IME Input mode)
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{{Cl|PRINT}} "UNICODE "; x - {{Cl|&H}}40000000; "0x" + {{Cl|HEX$}}(x - {{Cl|&H}}40000000) + " ...";
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cx = {{Cl|POS}}(1): cy = {{Cl|CSRLIN}}
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{{Cl|_FONT}} unifont
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{{Cl|LOCATE}} cy, cx
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{{Cl|COLOR}} 15
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z$ = {{Cl|MKL$}}(x - {{Cl|&H}}40000000) + {{Cl|MKL$}}(0)
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{{Cl|PRINT}} z$ + z$ + z$;
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{{Cl|_FONT}} font
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{{Cl|LOCATE}} cy, 1: {{Cl|PRINT}}
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{{Cl|END IF}}
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{{Cl|END IF}}
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{{Cl|LOOP}}
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{{CodeEnd}}
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{{small|Code by Galleon}}
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{{PageSeeAlso}}
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* [[_KEYDOWN]], [[_CINP]]
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* [[_MAPUNICODE]], [[_MAPUNICODE (function)]]
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* [[INKEY$]], [[ASCII]] {{text|(code table)}},
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* [[Unicode]], [[Code Pages]] {{text|(by region)}}
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* [[INP]]([[&H|&H60]]), [[Scancodes]]
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* [[ON KEY(n)]], [[KEY(n)]], [[KEY n]]
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* [[Windows_Libraries#Hot_Keys_.28maximize.29|Windows hot keys]]
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{{PageNavigation}}
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