ImageGear for C and C++ on Windows v19.10 - Updated
enumPNGCompLevel
API Reference Guide > Core Component API Reference > Core Component Enumerations Reference > enumPNGCompLevel

Specifies PNG compression level.

Values:

IG_PNG_MIN_COMPRESSION Minimum level of PNG compression.
IG_PNG_MAX_COMPRESSION Maximum level of PNG compression.
IG_PNG_DEFAULT_COMPRESSION Default PNG compression level.