Q(uick)BASIC Command: Substring
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Substring Command
The Execute "(X)" Substring Command
Worth knowing
Useful and cross-version information about the programming environments of QBasic and QuickBasic.
Description/Parameter(s)
| Substring Command | Description |
| X stringexpression | Execute substring. This command allows you to execute a second substring from a string. You may have one string expression execute another, which executes a third, and so on. |
| Numeric arguments can be constants like 123 or variable names. | |
| QuickBASIC requires the | |
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| form of this command. This is different than the BASICA form of the command. |
Description/Parameter(s)
The Execute Substring command allows you to execute a second substring from a DRAW command string. You can have one string expression execute another, which executes a third, and so on.
- This command has the following syntax:
- DRAW stringexpression$
- "X" + VARPTR$(string-expression)
- Numeric arguments to macrocommands within stringexpression$ can be constants or variable names.