Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
HP.com home

HP OpenVMS Systems Documentation
Content starts here
Previous Contents Index
Table 3-24 describes the members of the font property data structure.

Table 3-24 Font Property Data Structure Members
Member Name Contents
X$L_FNTP_NAME The string of characters that names the property
X$L_FNTP_CARD32 A 32-bit value that defines the font property

3.25 Font Data Structure

Figure 3-25 illustrates the font data structure (X$FONT_STRUCT).

Figure 3-25 Font Data Structure

Table 3-26 describes the members of the GC values data structure.

Table 3-26 GC Values Data Structure Members
Member Name Contents
X$L_GCVL_FUNCTION Defines how the server computes pixel values when the client updates a section of the screen. The following lists available functions:
Constant Description
X$C_GX_CLEAR 0
x$C_GX_AND src AND dst
X$C_GX_AND_REVERSE src AND NOT dst
X$C_GX_COPY src
X$C_GX_AND_INVERTED (NOT src) AND dst
X$C_GX_NOOP dst
X$C_GX_XOR src XOR dst
X$C_GX_OR src OR dst
X$C_GX_NOR (NOT src) AND NOT dst
X$C_GX_EQUIV (NOT src) XOR dst
X$C_GX_INVERT NOT dst
X$C_GX_OR_REVERSE src OR NOT dst
X$C_GX_COPY_INVERTED NOT src
X$C_GX_OR_INVERTED (NOT src) OR dst
X$C_GX_NAND (NOT src) OR NOT dst
X$C_GX_SET 1
X$L_GCVL_PLANE_MASK Specifies the planes on which the server performs the bitwise computation of pixels, defined by X$L_GCVL_FUNCTION.
X$L_GCVL_FOREGROUND Specifies an index to a color map for foreground color.
X$L_GCVL_BACKGROUND Specifies an index to a color map for background color.
X$L_GCVL_LINE_WIDTH Defines the width of a line in pixels.
X$L_GCVL_LINE_STYLE Defines which sections of the line the server draws. The following line styles and the constants that specify them are available:
x$c_line_solid x$c_line_off_on_dash
x$c_line_double_dash  
X$L_GCVL_CAP_STYLE Defines how the server draws the endpoints of a path. The following cap styles and the constants that specify them are available:
x$c_cap_not_last x$c_cap_round
x$c_cap_butt x$c_cap_projecting
X$L_GCVL_JOIN_STYLE Defines how the server draws corners for wide lines. The following join styles and the constants that specify them are available:
x$c_join_mitre x$c_join_bevel
x$c_join_round  
X$L_GCVL_FILL_STYLE Specifies the contents of the source for line, text, and fill operations. The following fill styles and the constants that specify them are available:
x$c_fill_solid x$c_fill_opaque_stippled
x$c_fill_tiled x$c_fill_stippled
X$L_GCVL_FILL_RULE Defines what pixels the server draws along a path when a polygon is filled. The two available choices are x$c_even_odd_rule and x$c_winding_rule.
X$L_GCVL_ARC_MODE Controls how the server fills an arc. The available choices are specified by the constants x$c_arc_pie_slice and x$c_arc_chord.
X$L_GCVL_TILE Specifies the pixmap the server uses for tiling operations.
X$L_GCVL_STIPPLE Specifies the pixmap the server uses for stipple operations.
X$L_GCVL_TS_X_ORIGIN Defines the origin for tiling and stipple operations.
X$L_GCVL_TS_Y_ORIGIN Defines the origin for tiling and stipple operations.
X$L_GCVL_FONT Specifies the font that the server uses for text operations.
X$L_GCVL_SUBWINDOW_MODE Specifies whether inferior windows clip superior windows. The constant x$c_clip_by_children specifies that all viewable input-output children clip both source and destination windows. The constant x$c_include_inferiors specifies that inferior windows clip neither source nor destination windows.
X$L_GCVL_GRAPHICS_EXPOSURES Specifies whether the server informs the client when the contents of a window region are lost.
X$L_GCVL_CLIP_X_ORIGIN Defines the x-coordinate of the clip origin.
X$L_GCVL_CLIP_Y_ORIGIN Defines the y-coordinate of the clip origin.
X$L_GCVL_CLIP_MASK Identifies the pixmap the server uses to restrict write operations to the destination that is drawable.
X$L_GCVL_DASH_OFFSET Specifies the pixel within the dash length sequence, defined by X$T_GCVL_DASHES.
X$T_GCVL_DASHES Specifies the length, in number of pixels, of each dash.

3.26.1 GC Mask

Table 3-27 lists the predefined values for the graphics context (GC) bit masks and their meaning.

Table 3-27 GC Mask Bits
OpenVMS Predefined Bit Value Meaning When Set
X$M_GC_FUNCTION Change the function member
X$M_GC_PLANE_MASK Change the plane mask member
X$M_GC_FOREGROUND Change the foreground member
X$M_GC_BACKGROUND Change the background member
X$M_GC_LINE_WIDTH Change the line width member
X$M_GC_LINE_STYLE Change the line style member
X$M_GC_CAP_STYLE Change the cap, endpoint, style member
X$M_GC_JOIN_STYLE Change the join style member
X$M_GC_FILL_STYLE Change the fill style member
X$M_GC_FILL_RULE Change the fill rule member
X$M_GC_ARC_MODE Change the arc fill mode
X$M_GC_TILE Change the tile pixmap identifier
X$M_GC_STIPPLE Change the stipple pixmap identifier
X$M_GC_TILE_STIP_X_ORIGIN Change the x-coordinate for a tile/stipple origin
X$M_TILE_STIP_Y_ORIGIN Change the y-coordinate for a tile/stipple origin
X$M_GC_FONT Change the font identifier
X$M_GC_SUBWINDOW_MODE Change the subwindow mode member
X$M_GC_GRAPHICS_EXPOSURE Change the graphics exposure flag
X$M_GC_CLIP_X_ORIGIN Change the x-coordinate for a clip origin
X$M_GC_CLIP_Y_ORIGIN Change the y-coordinate for a clip origin
X$M_GC_CLIP_MASK Change clip mask pixmap identifier
X$M_GC_DASH_OFFSET Change the dash offset member
X$M_GC_DASH_LIST Change the dash list member

3.27 Graphics Expose Event Data Structure

Figure 3-27 illustrates the graphics expose event data structure (X$GRAPH_EXPOSE_EVENT).

Figure 3-27 Graphics Expose Event Data Structure

Table 3-29 describes the members of the gravity event data structure.

Table 3-29 Gravity Event Data Structure Members
Member Name Contents
X$L_GVEV_TYPE Value defined by the x$c_gravity_notify constant.
X$L_GVEV_SERIAL Number of the last request processed by the server.
X$L_GVEV_SEND_EVENT Value defined by the constant true if the event came from a SEND EVENT request.
X$A_GVEV_DISPLAY Display on which the event occurred.
X$L_GVEV_EVENT Event window.
X$L_GVEV_WINDOW Child window that has moved.
X$L_GVEV_X The x value of the coordinates that define the upper left corner of the window relative to the upper left corner of the parent window.
X$L_GVEV_Y The y value of the coordinates that define the upper left corner of the window relative to the upper left corner of the parent window.

3.29 Host Address Data Structure

Figure 3-29 illustrates the host address data structure (X$HOST_ADDRESS).

Figure 3-29 Host Address Data Structure

Table 3-31 describes the members of the icon size data structure.

Table 3-31 Icon Size Data Structure Members
Member Name Contents
X$L_ICSZ_MIN_WIDTH, X$L_ICSZ_MIN_HEIGHT The minimum size for an icon window.
X$L_ICSZ_MAX_WIDTH, X$L_ICSZ_MAX_HEIGHT The maximum size for an icon window.
X$L_ICSZ_WIDTH_INC, X$L_ICSZ_HEIGHT_INC Specifies increments that can be added to a base width and height.

3.31 Image Data Structure

Figure 3-31 illustrates the image data structure (X$IMAGE).

Figure 3-31 Image Data Structure

Table 3-33 describes the members of the key event data structure.

Table 3-33 Key Event Data Structure Members
Member Name Contents
X$L_KYEV_TYPE Value defined by either the x$c_key_press or the x$c_key_release constant.
X$L_KYEV_SERIAL Number of the last event processed by the server.
X$L_KYEV_SEND_EVENT Value defined by the constant true if the event came from a SEND EVENT request.
X$A_KYEV_DISPLAY Display on which the event occurred.
X$L_KYEV_WINDOW Event window.
X$L_KYEV_ROOT Root window on which the event occurred.
X$L_KYEV_SUBWINDOW Source window of the event.
X$L_KYEV_TIME Time in milliseconds at which the key event occurred.
X$L_KYEV_X The x value of the pointer coordinates in the source window.
X$L_KYEV_Y The y value of the pointer coordinates in the source window.
X$L_KYEV_X_ROOT The x value of the pointer coordinates relative to the root window.
X$L_KYEV_Y_ROOT The y value of the pointer coordinates relative to the root window.
X$L_KYEV_STATE State of the key just prior to the key event. Xlib can set this member to the bitwise OR of the following states:
x$m_shift x$m_lock
x$m_control x$m_mod1
x$m_mod2 x$m_mod3
x$m_mod4 x$m_mod5
X$L_KYEV_KEYCODE An arbitrary but unique representation of the key that generated the event.
X$L_KYEV_SAME_SCREEN Indicates whether the event window is on the same screen as the root window.

3.33 Keyboard Control Data Structure

Figure 3-33 illustrates the keyboard control data structure (X$KEYBOARD_CONTROL).

Figure 3-33 Keyboard Control Data Structure

Table 3-35 describes the members of the keyboard state data structure.

Table 3-35 Keyboard State Data Structure Members
Member Name Contents
X$L_KBDS_KEY_CLICK_PERCENT The key click percent value.
X$L_KBDS_BELL_PERCENT The base volume for the bell.
X$L_KBDS_BELL_PITCH The bell pitch.
X$L_KBDS_BELL_DURATION The bell duration.
X$L_KBDS_LED_MASK The least significant bit corresponds to LED 1, and each one bit indicates an LED that is lit.
X$L_KBDS_GLOBAL_AUTO_REPEAT Global auto-repeat can be set either on or off.
X$B_KBDS_AUTO_REPEATS A bit vector where each one bit indicates that autorepeat is enabled for the corresponding key.

3.35 Keymap Event Data Structure

Figure 3-35 illustrates the keymap event data structure (X$KEYMAP_EVENT).

Figure 3-35 Keymap Event Data Structure

Table 3-37 describes the members of the map event data structure.

Table 3-37 Map Event Data Structure Members
Member Name Contents
X$L_MPEV_TYPE Value defined by the x$c_map_notify constant.
X$L_MPEV_SERIAL Number of the last request processed by the server.
X$L_MPEV_SEND_EVENT Value defined by the constant true if the event came from a SEND EVENT request.
X$A_MPEV_DISPLAY Display on which the event occurred.
X$L_MPEV_EVENT Event window.
X$L_MPEV_WINDOW Window that has been mapped.
X$L_MPEV_OVERRIDE_REDIRECT If the value of this member is defined by the constant true, the window manager should disregard requests to map the window. When true, it overrides a substructure redirect on the parent.

3.37 Map Request Event Data Structure

Figure 3-37 illustrates the map request event data structure (X$MAP_REQUEST_EVENT).

Figure 3-37 Map Request Event Data Structure

Table 3-39 describes the members of the mapping event data structure.

Table 3-39 Mapping Event Data Structure Members
Member Name Contents
X$L_MPPG_TYPE Value defined by the x$c_mapping_notify constant.
X$L_MPPG_SERIAL Number of the last request processed by the server.
X$L_MPPG_SEND_EVENT Value defined by the constant true if the event came from a SEND EVENT request.
X$A_MPPG_DISPLAY Display on which the event occurred.
X$L_MPPG_WINDOW Unused member.
X$L_MPPG_REQUEST The type of mapping change being reported. Possible values are indicated by the following constants:
x$c_mapping_modifier  
x$c_mapping_keyboard  
x$c_mapping_pointer  
X$L_MPPG_FIRST_KEYCODE First number of the range of altered keys, set only if the request member has a value specified by the constant x$c_mapping_keyboard.
X$L_MPPG_COUNT Last number of the range of altered keys, set only if the request member has a value specified by the constant x$c_mapping_keyboard.

Previous Next Contents Index

 
** About PDF files: The PDF files on this Web site can be read online or printed using Adobe® Acrobat® Reader. If you do not have this software installed on your system, you may download it from the Adobe Web site.
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 2008 Hewlett-Packard Development Company, L.P.