DECwindows Motif for OpenVMS Guide to Non-C Bindings

DRAW POINTS

OpenVMS Format

X$DRAW_POINTS
(display, drawable_id, gc_id, points, num_points, point_mode)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
points	array	x$point	read	reference
num_points	longword	longword	read	reference
point_mode	longword	longword	read	reference

Arguments

point_mode
The coordinate mode of the points. The coordinates of the points can be relative to the drawable origin or relative to the previous point. The predefined values for point_mode are as follows:
X$C_COORD_MODE_ORIGIN
X$C_COORD_MODE_PREVIOUS
Other values specified in this argument are not valid.

DRAW RECTANGLE

OpenVMS Format

X$DRAW_RECTANGLE
(display, drawable_id, gc_id, x_coord, y_coord, width, height)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
x_coord	longword	longword	read	reference
y_coord	longword	longword	read	reference
width	longword	uns longword	read	reference
height	longword	uns longword	read	reference

Note

The X Protocol defines that only the least significant 16 bits of the following longword arguments are transmitted to the server: x_coord, y_coord, width, height.

DRAW RECTANGLES

OpenVMS Format

X$DRAW_RECTANGLES
(display, drawable_id, gc_id, rectangles, num_rectangles)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
rectangles	array	x$rectangle	read	reference
num_rectangles	longword	longword	read	reference

DRAW SEGMENTS

OpenVMS Format

X$DRAW_SEGMENTS
(display, drawable_id, gc_id, segments, num_segments)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
segments	array	x$segment	read	reference
num_segments	longword	longword	read	reference

DRAW STRING

OpenVMS Format

X$DRAW_STRING
(display, drawable_id, gc_id, x_coord, y_coord, string)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
x_coord	longword	longword	read	reference
y_coord	longword	longword	read	reference
string	char_string	character string	read	descriptor

Note

The X Protocol defines that only the least significant 16 bits of the following longword arguments are transmitted to the server: x_coord, y_coord.

DRAW STRING 16

OpenVMS Format

X$DRAW_STRING_16
(display, drawable_id, gc_id, x_coord, y_coord, string16, length)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
x_coord	longword	longword	read	reference
y_coord	longword	longword	read	reference
string16	array	word	read	reference
length	word	word	read	reference

Note

The X Protocol defines that only the least significant 16 bits of the following longword arguments are transmitted to the server: x_coord, y_coord.

DRAW TEXT

OpenVMS Format

X$DRAW_TEXT
(display, drawable_id, gc_id, x_coord, y_coord, items, num_items)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
x_coord	longword	longword	read	reference
y_coord	longword	longword	read	reference
items	array	vector_longword	read	reference
num_items	longword	longword	read	reference

Note

The X Protocol defines that only the least significant 16 bits of the following longword arguments are transmitted to the server: x_coord, y_coord.

DRAW TEXT 16

OpenVMS Format

X$DRAW_TEXT_16
(display, drawable_id, gc_id, x_coord, y_coord, items16, num_items)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference
drawable_id	identifier	uns longword	read	reference
gc_id	identifier	uns longword	read	reference
x_coord	longword	longword	read	reference
y_coord	longword	longword	read	reference
items16	array	vector_longword	read	reference
num_items	longword	longword	read	reference

Note

The X Protocol defines that only the least significant 16 bits of the following longword arguments are transmitted to the server: x_coord, y_coord.

EMPTY REGION

OpenVMS Format

answer_return = X$EMPTY_REGION
(region_id)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
answer_return	longword	longword	write	value
region_id	identifier	uns longword	read	reference

ENABLE ACCESS CONTROL

OpenVMS Format

X$ENABLE_ACCESS_CONTROL
(display)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
display	identifier	uns longword	read	reference

EQUAL REGION

OpenVMS Format

answer_return = X$EQUAL_REGION
(region1_id, region2_id)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
answer_return	longword	longword	write	value
region1_id	identifier	uns longword	read	reference
region2_id	identifier	uns longword	read	reference

EVENT MASK OF SCREEN

OpenVMS Format

mask_return = X$EVENT_MASK_OF_SCREEN
(screen_id)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
mask_return	longword	longword	write	value
screen_id	identifier	uns longword	read	reference

EVENTS QUEUED

OpenVMS Format

count = X$EVENTS_QUEUED
(display, mode)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
count	longword	longword	write	value
display	identifier	uns longword	read	reference
mode	longword	longword	read	reference

Arguments

mode
The mode by which you return the number of queued events. The predefined values for mode are as follows:
X$C_QUEUED_ALREADY
X$C_QUEUED_AFTER_FLUSH
X$C_QUEUED_AFTER_READING

FETCH BUFFER

OpenVMS Format

status_return = X$FETCH_BUFFER
(display, num_bytes_return, num_buffer, buff_addr_return)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
status_return	cond_value	uns longword	write	value
display	identifier	uns longword	read	reference
num_bytes_return	longword	longword	write	reference
num_buffer	longword	longword	read	reference
buff_addr_return	longword	longword	write	value

Returns

status_return
Specifies whether the routine completed successfully. This routine returns one of the following values:

Value Description

SS$_NORMAL Routine completed successfully.

X$_INVBUFFER Invalid buffer.

X$_ERRORREPLY Error received from server.

X$_INSFMEM Insufficient virtual memory.

0 No data in the buffer.

Value	Description
SS$_NORMAL	Routine completed successfully.
X$_INVBUFFER	Invalid buffer.
X$_ERRORREPLY	Error received from server.
X$_INSFMEM	Insufficient virtual memory.
0	No data in the buffer.

Arguments

buff_addr_return
The address of the stream of bytes.

FETCH BYTES

OpenVMS Format

buff_addr_return = X$FETCH_BYTES
(display, num_bytes_return)

Argument Information

Argument	Usage	Data Type	Access	Mechanism
buff_addr_return	longword	longword	write	value
display	identifier	uns longword	read	reference
num_bytes_return	longword	longword	write	reference

Returns

buff_addr_return
The address of a stream of bytes stored in cut buffer zero.

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