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45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
{{DISPLAYTITLE:_CONSOLEINPUT}}
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The [[_CONSOLEINPUT]] function is used to monitor any new mouse or keyboard input coming from a $CONSOLE window. It must be called in order for [[_CINP]] to return valid values. Windows-only.
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{{PageSyntax}}
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:{{Parameter|infoExists%%}} = [[_CONSOLEINPUT]]
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{{PageDescription}}
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* Returns 1 if new keyboard information is available, 2 if mouse information is available, otherwise it returns 0.
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* Must be called before reading any of the other mouse functions and before reading [[_CINP]].
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* To clear all previous input data, read [[_CONSOLEINPUT]] in a loop until it returns 0.
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* [[Keywords_currently_not_supported_by_QB64#Keywords_Not_Supported_in_Linux_or_MAC_OSX_versions|Not available in Linux or macOS]].
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{{PageExamples}}
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''Example 1:'' Reading individual key strokes from a console window (Windows).
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{{CodeStart}} '' ''
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{{Cl|$CONSOLE}}:ONLY
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{{Cl|_DEST}} {{Cl|_CONSOLE}}: {{Cl|_SOURCE}} {{Cl|_CONSOLE}}
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{{Cl|PRINT}} "Press any key, and I'll give you the scan code for it. <ESC> quits the demo."
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{{Cl|PRINT}}
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{{Cl|PRINT}}
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{{Cl|DO}}
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x = {{Cl|_CONSOLEINPUT}}
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{{Cl|IF}} x = 1 {{Cl|THEN}} 'read only keyboard input ( = 1)
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c = {{Cl|_CINP}}
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{{Cl|PRINT}} c;
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{{Cl|END IF}}
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{{Cl|LOOP}} {{Cl|UNTIL}} c = 1
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{{Cl|END}}
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{{CodeEnd}}
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{{PageSeeAlso}}
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* [[$CONSOLE]], [[_CONSOLE]]
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* [[_CINP]], [[Keyboard_scancodes#INP_Scan_Codes|Scan Codes]]
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* [[_MOUSEX]], [[_MOUSEY]], [[_MOUSEBUTTON]], [[_MOUSEWHEEL]]
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{{PageNavigation}}
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