# G3X_IsLineBufferUnderflow

## C Specification

      #include <nitro/gx/g3x.h>

      s32 G3X_IsLineBufferUnderflow(void);

## Arguments

None.

## Return Values

A value of 0 is returned if the line overflow has not occurred; a nonzero value is returned if overflow has occurred.

## Description

This function returns a nonzero value if rendering is not in time for display and the color buffer underflows (i.e., the rendering engine experiences a line overflow). After an overflow occurs, the function will continue to return a nonzero value until the `G3X_ResetLineBufferUnderflow` function is called.

## See Also

## Revision History

01/19/2004 Initial version

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