Epson S1D13706 Technical Manual page 233

Epson Research and Development
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int seDelay(DWORD Seconds)
Description:
Parameters:
Return Value:
void seDisplayBlank(BOOL Blank)
void seMainWinDisplayBlank(BOOL Blank)
void seSubWinDisplayBlank(BOOL Blank)
Description:
Parameters:
Return Value:
Programming Notes and Examples
Issue Date: 01/02/23
This function, intended for non-Intel platforms, delays for the specified number of seconds
then returns to the calling routine. On several evaluation platforms it was not readily
apparent where to obtain an accurate source of time delays. seDelay() was the result of the
need to delay a specified amount of time on these platforms.
For non-Intel platforms, seDelay works by calculating and counting the number of vertical
non-display periods in the requested delay time. This implies two conditions for proper
operation:
a) The S1D13706 control registers must be configured to correct values.
b) The display interface must be enabled (not in power save mode).
For Intel platforms, seDelay() calls the C library time functions to delay the desired
amount of time using the system clock.
Seconds The number of seconds to delay for.
ERR_OK Returned by all platforms at the completion of a successful delay.
ERR_FAILED Returned by non-Intel platforms in which the power save mode is
enabled.
These functions blank their respective display. Blanking the display is a fast convenient
means of temporarily shutting down a display device.
For instance, updating the entire display in one write may produce a flashing or tearing
effect. If the display is blanked prior to performing the update, the operation is perceived
to be smoother and cleaner.
seDisplayBlank() will blank the display associated with the current active surface.
seDisplayMainWinBlank() and seDisplaySubWinBlank() blank the display for the surface
indicated in the function name.
Blank Call with Blank set to TRUE to blank the display. Call with Blank set to
FALSE to un-blank the display.
None.
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