The AND bitmap is 1 bit per pixel and is applied first to decide which areas of the image are affected by the background. Icon image data was always made up of two bitmaps: the AND bitmap and the XOR bitmap. Commonly an icon file would contain both 16x16 and 32x32 (for the start menu and folder "large icons" view) and 16x16 (for window title bars, submenus of the start menu and folder small icons, list and details views). Prior to Windows XP, icon images could be any size from 1×1 pixel up to 255×255 pixels (including non-square sizes), and 4-, 8-, 16-, or 24-bit color depth.
Originally 32×32 pixels square and using 16 colors, more recent versions of Microsoft Windows support icons at multiple sizes and color depths. Icon sizes, color depths, and transparency data
0 kommentar(er)
