S1D13505 Epson Electronics America, Inc., S1D13505 Datasheet - Page 229

• Manufacturer Part Number: S1D13505
• Description: LCD Controller
• Manufacturer: Epson Electronics America, Inc.

Epson Research and Development
Vancouver Design Center
11.5.7 Ink Layer
Programming Notes and Examples
Issue Date: 01/02/05
The functions in this section support the hardware ink layer. Overall these functions are
nearly identical to the hardware cursor routines. In fact the same S1D13505 hardware is
used for both features which means that only the cursor or the ink layer can be active at any
given time.The difference between the hardware cursor and the ink layer is that in cursor
mode the image is a maximum of 64x64 pixels and can be moved around the display while
in ink layer mode the image is as large as the physical size of the display and is in a fixed
position. Both the Ink layer and Hardware cursor have the same number of colors and
handle these colors identically.
int seInitInk(int DevID)
Description:
Parameters:
Return Value: ERR_OK
int seInkOn(int DevID)
Description:
Parameters:
Return Value: ERR_OK
int seInkOff(int DevID)
Description:
Parameters:
Return Value: ERR_OK
int seGetInkStartAddr(int DevID, DWORD * Offset)
Description:
Parameters:
Return Value: ERR_OK
This routine prepares the ink layer for use. This consists of determining the start
address for the ink layer, setting the ink layer to the transparent color and enabling
the ink layer.
When this function returns the ink layer is enabled, transparent and ready to be
drawn on.
DevID
ERR_FAILED- if the ink layer cannot be enabled due to timing constraints this
Enables the ink layer after a call to seInkOff(). If the hardware cursor has not been
used between the time seInkOff() was called and this call then the contents of the ink
layer should be exactly as it was prior to the call to seInkOff().
DevID
Disables the ink layer. When disabled the ink layer is not visible.
DevID
This function retrieves the offset to the first byte of hardware ink layer memory.
DevID
Offset
- a registered device ID
- operation completed with no problems
- a registered device ID
- operation completed with no problems
- a registered device ID
- operation completed with no problems
- a registered device ID
- a DWORD to hold the return value.
- the operation completed with no problems.
value will be returned.
X23A-G-003-07
S1D13505
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