sed1355 ETC-unknow, sed1355 Datasheet - Page 223

• Manufacturer Part Number: sed1355
• Description: Sed1355 Embedded Ramdac Lcd/crt Controller
• Manufacturer: ETC-unknow

Epson Research and Development
Vancouver Design Center
11.5.7 Ink Layer
Programming Notes and Examples
Issue Date: 99/04/27
int seDrawCursorCircle(int DevID, long x, long y, long Radius,
DWORD Color, BOOL SolidFill)
Description:
Parameters:
Return Value: ERR_OK
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 SED1355 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
This routine draws a circle in hardware cursor display buffer. The center of the circle
will be at (x,y) and the circle will have a radius of ’Radius’ pixels.
The value of ’Color’ must be 0 to 3. Values 0 and 1 refer to the two user definable
colors. If ’Color’ is 2 then the pixel will be transparent and if the value is 3 the pixel
will be an inversion of the underlying screen color.
Currently seDrawCursorCircle() does not support the solid fill option.
DevID
(x,y)
Radius
Color
SolidFill
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
- a registered device ID
- center of the circle (in pixels)
- radius of the circle (in pixels)
- 0 to 3 value to draw the circle with
- flag to solid fill the circle (currently not used)
- operation completed with no problems
- a registered device ID
- operation completed with no problems
value will be returned.
X23A-G-003-05
SED1355
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