GWBASIC User's Manual

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GW-BASIC <strong>User's</strong> Guide STRIG Statement and Function Purpose: To return the status of the joystick triggers. Syntax: As a statement: STRIG ON STRIG OFF As a function: x=STRIG(n) Comments: STRIG ON must be executed before any STRIG(n) function calls may be made. Once STRIG ON is executed, GW-BASIC will check to see if a button has been pressed before every statement is executed. STRIG OFF disables the checking. x is a numeric variable for storing the result. n is a numeric expression within the range of 0 to 7 that returns the following values: Value of n Returns 0 -1 if trigger A1 was pressed since the last STRIG(0) statement; returns 0, if not. 1 -1 if trigger A1 is currently pressed; returns 0, if not. 2 -1 if trigger B1 was pressed since the last STRIG(2) statement; returns 0, if not. 3 -1 if trigger B1 is currently pressed; returns 0, if not. 4 -1 if trigger A2 was pressed since the last STRIG(4) statement; returns 0 if not. 5 -1 if trigger A2 is currently pressed; returns 0, if not. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/STRIG.html28/03/2004 21.29.49
GW-BASIC <strong>User's</strong> Guide STRIG(n) Statement Purpose: To allow the use of a joystick by enabling or disabling the trapping of its buttons. Syntax: STRIG(n) ON STRIG(n) OFF STRIG(n) STOP Comments: n is 0, 2, 4, or 6, corresponding to the buttons on the joystick, where: 0 is button A1 2 is button B1 4 is button A2 6 is button B2 Examples: STRIG(n) ON Enables trapping of the joystick buttons. After this statement is executed, GW-BASIC checks to see if this button has been pressed before executing following statements. STRIG(n) OFF Disables GW-BASIC from checking the state of the button. STRIG(n) STOP Disables trapping of a given button through the ON STRIG(n) statement. But, any pressings are remembered so that trapping may take place once it is reenabled. file:///C|/Documents%20and%20Settings/Lorenzo/Desktop/GW%20Basic/STRIGN.html28/03/2004 21.29.49
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GWBASIC User's Manual User's Guide
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GWBASIC User's Manual FILES Command
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GW-BASIC User's Guide USR Function
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GW-BASIC User's Guide 8 8 18 24 90
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GW-BASIC User's Guide ABS Function
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GW-BASIC User's Guide CHR$ Function
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GW-BASIC User's Guide AUTO Command
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GW-BASIC User's Guide BLOAD Command
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GW-BASIC User's Guide BSAVE Command
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GW-BASIC User's Guide CDBL Function
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GW-BASIC User's Guide INT Function
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GW-BASIC User's Guide CHAIN Stateme
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GW-BASIC User's Guide COLOR Stateme
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