ClearKeys( )

( Basic4GL 2.4.7 )

ClearKeys - clear the keyboard buffer.

Synax

ClearKeys()

Description

ClearKeys() clears the keyboard buffer. It is useful if you want to make sure that the player isn't pressing a key.

Examples

Clearing Between "Screens"

If you have one "screen" and have one button to advance, you can use ClearKeys() to keep the player from skipping screens.

TextMode(TEXT_BUFFERED)

Do  
    Cls
    Printr "Screen 1."
    Printr "Press space to continue."
    DrawText()
    Sleep(1)
Loop Until ScanKeyDown(vk_space)

ClearKeys()

Do
    Cls
    Printr "Screen 2."
    Printr "Press space to continue."
    DrawText()
    Sleep(1)
Loop Until ScanKeyDown(vk_space)
Cls
DrawText()

Clearing Before Input

Using ClearKeys() before Input ensures that the input line appear empty. This is especially useful if there is a delay before Input.

Dim answer$

Printr "Type something during the delay."
Sleep(2000)
ClearKeys()
Input " > ", answer$
End

Related Pages

• Inkey$() - removes one character from the keyboard buffer.
• InScanKey()

This page has been recommended for cleanup, integration, etc.