Int 2F Fn 170A  - MS Windows "winoldap" - Get Device Capabilities          [W]

   AX = 170Ah
   DX = GDI information index
       00h device driver version
       02h device classification
       04h width in mm
       06h height in mm
       08h width in pixels
       0Ah height in pixels
       0Ch bits per pixel
       0Eh number of bit planes
       10h number of brushes supported by device
       12h number of pens supported by device
       14h number of markers supported by device
       16h number of fonts supported by device
       18h number of colors
       1Ah size required for device descriptor
       1Ch curve capabilities
       1Eh line capabilities
       20h polygon capabilities
       22h text capabilities
       24h clipping capabilities
       26h bitblt capabilities
       28h X aspect
       2Ah Y aspect
       2Ch length of hypotenuse of aspect
       58h logical pixels per inch of width
       5Ah logical pixels per inch of height

Return:     AX = integer value of the desired item (see below)

Note:  This function returns the device-capability bits for the given display

Values for device classification:
 00h   vector plotter
 01h   raster display
 02h   raster printer
 03h   raster camera
 04h   character-stream, PLP
 05h   Metafile, VDM
 06h   display-file

Bitfields for curve capabilities:
 bit 0 circles
 bit 1 pie wedges
 bit 2 chord arcs
 bit 3 ellipses
 bit 4 wide lines
 bit 5 styled lines
 bit 6 wide styled lines
 bit 7 interiors

Bitfields for line capabilities:
 bit 1 polylines
 bit 2 markers
 bit 3 polymarkers
 bit 4 wide lines
 bit 5 styled lines
 bit 6 wide styled lines
 bit 7 interiors

Bitfields for polygon capabilities:
 bit 0 polygons
 bit 1 rectangles
 bit 2 trapezoids
 bit 3 scanlines
 bit 4 wide borders
 bit 5 styled borders
 bit 6 wide styled borders
 bit 7 interiors

Bitfields for text capabilities:
 bit 0 output precision character
 bit 1 output precision stroke
 bit 2 clippping precision stroke
 bit 3 90-degree character rotation
 bit 4 arbitrary character rotation
 bit 5 independent X and Y scaling
 bit 6 double-size
 bit 7 integer scaling
 bit 8 continuous scaling
 bit 9 bold
 bit 10 italic
 bit 11 underline
 bit 12 strikeout
 bit 13 raster fonts
 bit 14 vector fonts
 bit 15 reserved

Values for clipping capabilities:
 00h   none
 01h   clipping to rectangles

Bitfields for raster capabilities:
 bit 0 simple bitBLT
 bit 1 device requires banding support
 bit 2 device requires scaling support
 bit 3 supports >64K bitmap