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This page has been moved to the Programmer's Wiki.
Please do not make any changes or additions to this page.

Any modifications, if still appropriate, should be made on QuickBasic at the Programmer's Wiki.

QuickBASIC is a GW-Basic-like platform developed by Microsoft.

Hello World[]

Here is a Hello World program written in QuickBASIC:

CLS
PRINT "Hello World"

As QuickBASIC programs run in a DOS environment, the CLS command is generally used as the first line to remove clutter from the output screen caused by previous runs. The PRINT command then simply displays its arguments on the screen.

Command Reference[]

The following commands used in QuickBASIC are organized by type.

Program Flow[]

  • DO...LOOP
  • IF...THEN
  • FOR...NEXT
  • GOSUB
  • GOTO
  • REPEAT...UNTIL
  • SELECT...END SELECT
  • WHILE...WEND

Declarations[]

  • DECLARE
  • SUB...END SUB
  • FUNCTION...END FUNCTION

Device I/O[]

File I/O[]

  • OPEN
  • WRITE #
  • PRINT #
  • GET
  • PUT
  • EOF

String Functions[]

  • LEFT
  • MID
  • RIGHT
  • LEN
  • INSTR

Graphics[]

  • SCREEN
  • DRAW
  • COLOR
  • PALETTE
  • PAINT

Error Trapping[]

  • ON KEY GOSUB
  • ON ERROR GOTO
  • RESUME

Data Types[]

Data Type Maximum Size Symbol
INTEGER -32,767 to 32,768 %
LONG -2,147,483,648 to 2,147,483,647 &
SINGLE +/-1.401298 * 10^-45 to +/-3.402823 * 10^38 !
DOUBLE +/-4.940656 * 10^-324 to +/-1.7976931 * 10^308 #
STRING 32,767 characters $

References[]

  1. Wikipedia's QuickBASIC article.
  2. QuickBASIC editor help.
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