| 1. | Destination device context
目标设备上下文 |
| 2. | If a brush is used , it is the selected brush in the destination device context
如果用到画刷，应使用目标设备上下文中选定的画刷。 |
| 3. | The brush currently selected in the destination device context is copied to the destination bitmap
目标设备上下文中当前选定的画笔被复制到目标位图。 |
| 4. | The colors of the source area are merged with the colors of the selected brush of the destination device context using the boolean
将源区域的颜色与目标设备上下文的所选定画笔的颜色合并。 |
| 5. | The colors of the brush currently selected in the destination device context are combined with the colors of the destination are using the boolean
将目标设备上下文中当前选定的画笔颜色与目标的颜色组合。 |
| 6. | The colors of the brush currently selected in the destination device context are combined with the colors of the inverted source area using the boolean
将目标设备上下文中当前选定的画笔颜色与已逆转的源区域的颜色组合。使用布尔运算符 |
| 7. | The destination coordinates are transformed according to the destination device context ; the source coordinates are transformed according to the source device context
目标坐标根据目标设备上下文来转换，源坐标根据源设备上下文来转换。 |
