h6. [[Hardware Abstraction Layer]] h6(. [[HAL entry points from RISC OS]] h6((. » HAL_VideoSetPowerSave h2. HAL_VideoSetPowerSave h5. (HAL entry #45) <pre> void HAL_VideoSetBlank(uint powersave) </pre> |_<. Entry | | |/2^. blank |0 or 1 for power save off or on | |(all other values reserved) | |_<. Exit | | |- | | h4. Use This is an internal call for OS use only and should not be used by user software. User software should use [[GraphicsV]] instead of interacting with the HAL directly. The HAL is expected to perform any reasonable measures on the video controller to save power (eg. turn off DACs), when the display is assumed not to be required. Blanking is handled by a separate call. "(What does this really mean. What is acceptable and safe for displays?)":HAL+TODO#ambiguous h4. See also * [[HAL Video API]] h6. Information source: Kernel.Docs.HAL.HAL_API in CVS