(PHP 3, PHP 4 >= 4.0b1)
ImageInterlace -- Enable or disable interlace
Description
int imageinterlace (int im [, int
interlace])
ImageInterlace() turns the interlace bit on or off.
If interlace is 1 the im image will be interlaced, and if interlace
is 0 the interlace bit is turned off.
This functions returns whether the interlace bit is set for the
image.