# G3X_IsLineBufferUnderflow

## Syntax

      #include <nitro/gx/g3x.h>

      s32 G3X_IsLineBufferUnderflow(void);

## Arguments

None.

## Return Values

Returns 0 if the line has not overflowed. Returns a nonzero value if overflow occurs.

## Description

This function returns a nonzero value if rendering is not in time for display and the color buffer underflows (that is, the rendering engine has a line overflow). Once an underflow occurs, a nonzero value will continue to be returned until the `G3X_ResetLIneBufferUnderflow` function is called.

## See Also

## Revision History

2004/10/22

- Changed name from `LineBufferOverflow` to `LineBufferUnderflow`.

2004/01/19 Initial version.

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