Epson S1D13504 manual Int seSetBitsPerPixelint device, Byte BitsPerPixel

Page 44	Epson Research and Development
	Vancouver Design Center

int seSetBitsPerPixel(int device, BYTE BitsPerPixel)

Description: Sets the number of bpp. This function is equivalent to a mode set.

Parameter: device - registered device ID

BitsPerPixel - desired number of bpp

Return Value: ERR_OK - operation completed with no problems

ERR_INVALID_REG_DEVICE - device argument is not valid.

ERR_COULD_NOT_GET_VALUE - value read from registers is invalid.

ERR_HAL_BAD_ARG - argument BitsPerPixel is invalid.

int seSplitInit(int device, DWORD Scrn1Addr, DWORD Scrn2Addr)

Description: Sets the relevant registers for split screen.

Parameter: device - registered device ID

Scrn1Addr - starting address of top image (addr = 0 refers to beginning of the display buffer)

Scrn2Addr - starting address of bottom image (addr = 0 refers to beginning of the display buffer)

Return Value: ERR_OK - operation completed with no problems

ERR_INVALID_REG_DEVICE - device argument is not valid.

Note

seSetInit() must first be called before calling seSplitInit(). This is because the VNDP is used for timing, and this would not be possible if the registers were not first initialized.

int seSplitScreen(int device, BYTE WhichScreen, int VisibleScanlines)

Description: Changes the relevant registers for moving the split screen up or down.

Parameter: device - registered device ID

WhichScreen - Use one of the following definitions: SCREEN1 or SCREEN2.

SCREEN1 is the top screen.

VisibleScanlines - number of lines to show for the selected screen

Return Value: ERR_OK - operation completed with no problems ERR_INVALID_REG_DEVICE - device argument is not valid. ERR_HAL_BAD_ARG - argument VisibleScanlines is negative or is greater than vertical panel size.

Note

seSplitInit() must have been called once before calling seSplitScreen().

S1D13504	Programming Notes and Examples
X19A-G-002-07	Issue Date: 01/02/01