| Member name | Description |
|---|
| Indexed | The pixel data contains color-indexed values, which means the values are an index to colors in the system color table, as opposed to individual color values. |
| Gdi | The pixel data contains GDI colors. |
| Alpha | The pixel data contains alpha values that are not premultiplied. |
| PAlpha | The pixel format contains premultiplied alpha values. |
| Extended | Reserved. |
| Canonical | The default pixel format of 32 bits per pixel. The format specifies 24-bit color depth and an 8-bit alpha channel. |
| Undefined | The pixel format is undefined. |
| DontCare | No pixel format is specified. |
| Format1bppIndexed | Specifies that the pixel format is 1 bit per pixel and that it uses indexed color. The color table therefore has two colors in it. |
| Format4bppIndexed | Specifies that the format is 4 bits per pixel, indexed. |
| Format8bppIndexed | Specifies that the format is 8 bits per pixel, indexed. The color table therefore has 256 colors in it. |
| Format16bppGrayScale | The pixel format is 16 bits per pixel. The color information specifies 65536 shades of gray. |
.gif) | Format16bppRgb555 | Specifies that the format is 16 bits per pixel; 5 bits each are used for the red, green, and blue components. The remaining bit is not used. |
| Format16bppRgb565 | Specifies that the format is 16 bits per pixel; 5 bits are used for the red component, 6 bits are used for the green component, and 5 bits are used for the blue component. |
| Format16bppArgb1555 | The pixel format is 16 bits per pixel. The color information specifies 32,768 shades of color, of which 5 bits are red, 5 bits are green, 5 bits are blue, and 1 bit is alpha. |
| Format24bppRgb | Specifies that the format is 24 bits per pixel; 8 bits each are used for the red, green, and blue components. |
| Format32bppRgb | Specifies that the format is 32 bits per pixel; 8 bits each are used for the red, green, and blue components. The remaining 8 bits are not used. |
| Format32bppArgb | Specifies that the format is 32 bits per pixel; 8 bits each are used for the alpha, red, green, and blue components. |
| Format32bppPArgb | Specifies that the format is 32 bits per pixel; 8 bits each are used for the alpha, red, green, and blue components. The red, green, and blue components are premultiplied, according to the alpha component. |
| Format48bppRgb | Specifies that the format is 48 bits per pixel; 16 bits each are used for the red, green, and blue components. |
| Format64bppArgb | Specifies that the format is 64 bits per pixel; 16 bits each are used for the alpha, red, green, and blue components. |
| Format64bppPArgb | Specifies that the format is 64 bits per pixel; 16 bits each are used for the alpha, red, green, and blue components. The red, green, and blue components are premultiplied according to the alpha component. |
| Max | The maximum value for this enumeration. |