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Values for MODE 01h "QUERY STREAM" opcodes

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(valid only for those opcodes listed here)
Opcode Arguments
Size Description

A0h

return logical cursor row in next byte

A1h

return logical cursor column in next byte

A2h

return top row of scrolling region in next byte

A3h

return left column of scrolling region in next byte

A4h

return row of physical window origin in next byte

A5h

return column of physical window origin in next byte

A6h

return height of physical window in next byte

A7h

return width of physical window in next byte

A8h

return row of viewport origin in next byte

A9h

return column of viewport origin in next byte

AAh

return height of virtual screen in next byte

ABh

return width of virtual screen in next byte

AFh

return current video mode in next byte

C0h

return current logical cursor position in next two bytes

C1h

return top left corner of scrolling region in next two bytes

C2h

return current window position in next two bytes

C3h

return current window size in next two bytes

C4h

return current viewport origin in next two bytes

C5h

return current virtual screen size in next two bytes

D0h

overwritten with D0h if frames may fall off screen edge

D1h

overwritten with D1h if frames always displayed entirely

D2h

overwritten with D2h if DESQview controls color palette

D3h

overwritten with D3h if application changes color palette

D4h

overwritten with D4h if window visible

D5h

overwritten with D5h if window hidden

D6h

overwritten with D6h if window has frame

D7h

overwritten with D7h if window unframed

D8h

overwritten with D8h if reading characters from window

D9h

overwritten with D9h if reading attributes from window

DAh

overwritten with DAh if using logical attributes

DBh

overwritten with DBh if using physical attributes

DCh

overwritten with DCh if TTY control char interpretation on

DDh

overwritten with DDh if TTY control char interpretation off

DEh

overwritten with DEh if writing both characters and attributes

DFh

overwritten with DFh if leaving attributes untouched

E2h

return current color in next byte

ECh

get logical attributes for window contents

BYTE

execute call if currently in specified video mode
bit 7 - monochrome
bit 6 - color text, EGA/VGA graphics
bit 5 - medium-resolution CGA graphics
bit 4 - high-resolution CGA graphics

BYTE

which attributes to get
bit 7 - unused???
bits 4 - 6 - first attribute to get - 1
bits 0 - 3 - number of consecutive attributes

N BYTEs

buffer to hold attributes

EDh

get logical attributes for window frame

BYTE

execute call if currently in video mode (also see opcode ECh)

BYTE

which attributes to get
bit 7 - unused???
bits 4 - 6 - first attribute to get - 1
bits 0 - 3 - number of consecutive attributes

N BYTEs

buffer to hold attributes

EEh

get characters for window frame

BYTE

execute call if currently in video mode (also see opcode ECh)

BYTE

which attributes to get

N BYTEs

which attributes to get
bit 7 - unused???
bits 4 - 6 - first attribute to get - 1
bits 0 - 3 - number of consecutive attributes

EFh

return first N characters of current window name

BYTE

max length of returned name

N BYTEs

buffer to hold window name

F3h

return contents of specified field

BYTE

field number

N BYTEs

buffer to hold field contents (size equal to field size)

F5h

get field table entry

BYTE

field number

7 - 8 BYTEs

buffer to hold field table entry (see #00444)

Notes:

DV < 2.26 always returns 7 bytes
DV 2.26+ w/ APILEVEL < 2.26 returns 8 bytes iff field table is using 8-byte entries and eighth byte after F5h is E7h (NOP); otherwise, 7 bytes are returned
DV 2.26+ w/ APILEVEL > 2.26 returns 7 or 8 bytes depending on the field table entry size

F6h

get type of a field

BYTE

field number

BYTE

type

FCh

get field table header

6 BYTEs

buffer to store field table header (see #00442)


See Also:

#00439,#00447