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Epson Research and Development
Page 69
Vancouver Design Center
Programming Notes and Examples S1D13505
Issue Date: 01/02/05 X23A-G-003-07
registers are changed and the Look-Up Table is set its default value.
This call is similar to a mode set call on a standard VGA.
Parameter: DevID - registered device ID
BitsPerPixel - desired color depth in bits per pixel
Return Value: ERR_OK - operation completed with no problems
ERR_FAILED- possible causes for this error message include:
1) attempted to set other than 8 or 15/16 bpp in portrait mode
(portrait mode only supports 8 and 15/16 bpp)
2) factors such as input clock and memory speed will affect the ability
to set some color depths. If the requested color depth cannot be set this
call will fail
int seGetBitsPerPixel(int DevID, UINT * pBitsPerPixel)
Description: This function reads the S1D13505 registers to determine the current color depth and
returns the result in
pBitsPerPixel
.
Determines the color depth of current display mode.
Parameters: DevID - registered device ID
pBitsPerPixel - return value is the current color depth (1/2/4/8/15/16 bpp)
Return Value: ERR_OK - operation completed with no problems
11.5.5 Drawing
The Drawing section covers HAL functions that deal with displaying pixels, lines and
shapes.
int seSetPixel(int DevID, long x, long y, DWORD Color)
Description: Draws a pixel at coordinates (x,y) in the requested color. This routine can be used
for any color depth.
Parameters: DevID - Registered device ID
x - horizontal coordinate of the pixel (starting from 0)
y - vertical coordinate of the pixel (starting from 0)
Color - at 1, 2, 4, and 8 bpp Color is an index into the LUT.
At 15 and 16 bpp Color defines the color directly
(i.e. rrrrrggggggbbbbb for 16 bpp)
Return Value: ERR_OK - operation completed with no problems.
int seGetPixel(int DevID, long x, long y, DWORD *pColor)
Description: Reads the pixel color at coordinates (x,y). This routine can be used for any color
depth.