hdc (HDC) - input

The device context handle.

pDS (PDEVICESURFACE) - input

Pointer to information needed by the graphics engine.

ulLength

Length of the DEVICESURFACE data structure.
SurfaceBmapInfo
Information used by the graphics engine when rastering to a linear address. (See BMAPINFO in Data Types)
ulDSFlgs
Miscellaneous flags used by the graphics engine for rendering of rasterized data.

Color format flag

DS_MONO_INVERT

Mono ROPs are inverted.
Destination color format flags

DS_COLOR_RGB

Color is in RGB.
DS_COLOR_RGB2
Color is in RGB2 (default).
DS_COLOR_24BIT_BGR
First byte=blue (default).
DS_COLOR_24BIT_RGB
First byte=red, second byte=green, third byte=blue.
DS_COLOR_16BIT_565_BGR

Blue

5 bits (default)
Green
6 bits
Red
5 bits

|b|b|b|b|b|g|g|g|g|g|g|r|r|r|r|r|
DS_COLOR_16BIT_565_RGB

Red

5 bits
Green
6 bits
Blue
5 bits

|r|r|r|r|r|g|g|g|g|g|g|b|b|b|b|b|
DS_COLOR_16BIT_1555_BGR

Overlay

1
Blue
5 bits
Green
5 bits
Red
5 bits

|o|b|b|b|b|b|g|g|g|g|g|r|r|r|r|r|
DS_COLOR_16BIT_1555_RGB

Overlay

1
Red
5 bits
Green
5 bits
Blue
5 bits

|o|r|r|r|r|r|g|g|g|g|g|b|b|b|b|b|
Direction flags

DS_BOTTOMTOP

Bottom-to-top is Y position.
DS_TOPBOTTOM
Top-to-bottom is Y position.
Hardcopy flag

DS_QUEUED_RAW_DEFAULT

Set QUEUED to RAW as default.
Notification flag

DS_NOTIFY_LAST_SDBITBLT

Last banded blit per API bit map transfer.
Scanline alignment flags

DS_BYTE_ALIGNMENT

DS scan line alignment.
DS_2BYTE_ALIGNMENT
DS scan line alignment.
DS_4BYTE_ALIGNMENT
DS scan line alignment.
DS_KEEP_EXTFORMAT
Variable alignment; let application decide.
Surface description flag

DS_MEMORY

Memory surface.
ulStyleRatio
Default style ratio used by the current device.
abmapinfoDefPattern[ ]
Set of default patterns supplied by the graphics engine that can be changed by the presentation driver. [DEFAULT_PATTERNS_NUMBER].
pHWPalette
Default hardware palette for the current device.
DitherMatrix
Default is the generic dither support for hardcopy devices.
pfnDevLockDC
Pointer to allow the device driver to retrieve its device-specific information from the graphics engine. Pointer is stored by the device driver.
pfnDevUnLockDC
Pointer to the function to release the lock on the current DC. Pointer is stored by the device driver.
pfnBitBlt
Pointer defaults to SOFTDRAW's handling of the new SDBitBlt function. If a device does not have linear address support or would rather handle preclipped bit map transfers itself, then it should hook out this function with its own routine.
pfnLine
Pointer defaults to SOFTDRAW's handling of the new SDLine function. If a device does not have linear address support or would rather handle preclipped line operations itself, then it should hook out this function with its own routine.
pfnReserved
Reserved by system.
pfnLockPhysDev
Pointer prevents other processes from accessing the physical hardware between the lock and unlock.
pfnUnLockPhysDev
Pointer releases the physical hardware for access by other processes.
ulReserved[5]
Reserved by system.
ulCapsCnt
Size in ULONGs of the DevCaps field.
DevCaps[ ]
The device capabilities array in OS/2 2.0 and previous versions. Array must be filled out in order for the graphics engine to handle a call to the DevQueryCaps function. [CAPS_MAX _ CAPS+1 ]

rc (LONG) - returns

Return codes.

The handling routine should return a LONG integer. Valid values are:

Zero (0)

Success
Other
Failure

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