Epson S1D13504 manual Int seGetBitsPerPixelint device, Byte *pBitsPerPixel

Page 42	Epson Research and Development
	Vancouver Design Center

int seGetBitsPerPixel(int device, BYTE *pBitsPerPixel)

Description: Determines the color depth of current display mode.

Parameter: device - registered device ID

pBitsPerPixel - if ERR_OK, *pBitsPerPixel set

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

int seGetBytesPerScanline(int device, int *pBytes)

Description: Determines the number of bytes per scan line of current display mode. It is assumed that the registers have already been correctly initialized before seGetBytesPer- Scanline() is called.

Parameter: device - registered device ID

pBytes - pointer to an integer which indicates the number of bytes per scan line

Return Value: ERR_OK - operation completed with no problems

ERR_INVALID_REG_DEVICE - device argument is not valid

int seGetLastUsableByte(int device, DWORD *pLastByte)

Description: Determines the address of the last byte in the display buffer which can be used by applications. Addresses following LastByte are reserved for system use (such as the half frame buffer for dual panels). It is assumed that the registers have already been correctly initialized before seGetLastUsableByte() is called.

Parameter: device - registered device ID

pLastByte - pointer to an integer which indicates the number of bytes per scan line

Return Value: ERR_OK - operation completed with no problems

ERR_INVALID_REG_DEVICE - device argument is not valid

int seGetLinearDispAddr(int device, DWORD *pDispLogicalAddr)

Description: Determines the logical address of the start of the display buffer. This address may be used in programs for direct control over the display buffer.

Parameter: device - registered device ID

pDispLogicalAddr - logical address is returned in this variable.

Return Value: ERR_OK - operation completed with no problems.

ERR_INVALID_REG_DEVICE - device argument is not valid.

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