Customizing the look of your application

This topic includes the following sections:

 

The color palette is a set of color settings used to specify colors for renditions. On Windows, these settings correspond to Synergy colors, which are RGB triplets assigned to color numbers. On UNIX and OpenVMS, they correspond to color codes (for WNDC) or system‑specific color numbers (for other routines). See Synergy colors and the color palette.

Renditions are combinations of colors and attributes—boldface, blinking (which is italic on Windows), reverse video, and underscore—for UI elements. You can set Toolkit renditions for types of UI elements, and in many cases, you can set renditions for a specific UI element. See Renditions.

Rendition schemes are sets of Toolkit renditions that you can modify, create, save, and restore. You can create, change, and delete rendition schemes, and you can save them to and load them from a rendition file. See Rendition schemes and Toolkit renditions for types of UI elements.

Synergy colors and the color palette

The color palette consists of 16 pairs of color settings called color palette entries, which are used to specify colors for renditions. Color palette entries are numbered 1 through 16, include a foreground setting (used for text) and a background setting. On UNIX and OpenVMS, the foreground and background settings correspond to color codes (for WNDC) or system‑specific color numbers (for other routines). On Windows, however, these settings correspond to Synergy colors, which are RGB triplets assigned to color numbers.

There are three types of Synergy colors:

On Windows, the Synergy runtime loads default Synergy colors and a default color palette when it starts. On UNIX and OpenVMS, there is no default color palette; you must define the initial color palette with the WNDC environment variable.

The color palette and Synergy color definitions, which are also used by the Synergy windowing subroutines, are more fully described in Colors and the color palette. The sections below list methods you can use with Toolkit applications to change or define the color palette and to change user colors.

Defining and modifying the color palette

You can override one or more of the Synergy color palette entries by doing one of the following:

Redefining user colors (Windows)

You can redefine Synergy color 0 through Synergy color 255, which are user colors, by doing one of the following:

Renditions

Renditions are combinations of colors and attributes (boldface, blinking, reverse video, and underscore) for UI elements, which make up the visible part of an application, such as backgrounds, scroll bars, borders, titles, and so forth. You can set renditions for a specific UI element in many cases (e.g., for a particular field on a particular window), and you can set renditions for some types of elements. For example, Input Field Display is a set of color and attribute settings that apply to input fields. For a list of renditions, see the Renditions table below.

You can set renditions with the following. Note that these are listed in order of precedence: settings in input methods override field‑level settings, and so forth. For more information on methods for setting renditions, see Renditions for specific UI elements and Rendition schemes and Toolkit renditions for types of UI elements.

1. Input methods (%IDISPLAY_METHOD or %IEDITFMT_METHOD) or published properties for ActiveX Toolkit lists.
2. Field‑level settings. These are set with .FIELD, IB_FIELD, I_FLDMOD, or U_HELPREND.
3. U_REND, U_START, U_MODREND, or U_EDITREND. These set renditions for types of UI elements.
4. Other script settings (.FILL, .TEXT, .BORDER, and so forth).

You can also use the Synergy windowing routines, such as W_DISP, to set colors and attributes, and these changes generally have precedence for screen updates that occur immediately after they are set. But note that settings made with windowing routines can later be overridden by calls to Toolkit routines.

Note the following:

Renditions

Toolkit rendition

U_REND argument

U_START initialization

Affected platforms

Corresponding Control Panel items for Windows 7 & earlier

Override t script?

Attributes

Palette

D_RND_DLG_BDR

Dialog Box Border

Yes

n/a

1

UNIX, OpenVMS

Active Window Border,
Inactive Window Border

D_RND_DLG

Dialog Box Body

Yes

n/a

1

All

n/a

D_RND_FTR

Screen Footer

Yes

Bold

5

UNIX, OpenVMS

3D Objects

D_RND_HDR

Screen Headera

Yes

Bold

5

All

Active Title Bar,
Inactive Title Bar

D_RND_HLP_BCK

Help Window Body

No

n/a

n/a

All

n/a

D_RND_HLP_BRDR

Help Window Border

No

n/a

n/a

UNIX, OpenVMS

Active Window Border,
Inactive Window Border

D_RND_HLP_TTL

Help Window Title

No

n/a

n/a

UNIX, OpenVMS

Active Title Bar,
Inactive Title Bar

D_RND_INF

Information Line

Yes

Reverse

6

UNIX, OpenVMS

3D Objects

D_RND_INP_BCK

Input Window Backgroundb

(includes prompts and other non‑field text)

No

n/a

n/a

All

n/a

D_RND_INP_BDR

Input Window Border

No

n/a

n/a

UNIX, OpenVMS

Active Window Border,
Inactive Window Border

D_RND_INP_CLR

Cleared Input Field

(for non‑active cleared input fields)

Yes

n/a

3

All

Window

D_RND_INP_DSA

Disabled Input Fieldc

Yes

n/a

3

UNIX, OpenVMS

3D Objects (with Windows themes), Window (without Windows themes)

D_RND_INP_DSP

Input Field Display

(for non‑active read/write input fields)

Yes

Bold

3

All

Window

D_RND_INP_PRC

Input Field Processing d

(for active input read/write input field)

Yes

Reverse

3

UNIX, OpenVMS

Window,
Selected Items

D_RND_INP_ROD

Read‑Only Input Field Displayc

(for non‑active read‑only input fields)

Yes

Normal

3

UNIX, OpenVMS

3D Objects

D_RND_INP_ROP

Read‑Only Input Field Processingc

(for active input field if it is read‑only)

Yes

Reverse

3

UNIX, OpenVMS

3D Objects

D_RND_INP_TTL

Input Window Title

No

n/a

n/a

UNIX, OpenVMS

Active Title Bar,
Inactive Title Bar

D_RND_LST_DSA_S

Disabled Selected Item

Yes

Reverse

7

UNIX, OpenVMS

Selected Items

D_RND_LST_ENA_B

Enabled List Border

Yes

Bold

7

UNIX, OpenVMS

Active Window Border,
Inactive Window Border

D_RND_LST_ENA_T

Enabled List Title

Yes

Bold

7

UNIX, OpenVMS

Active Title Bar,
Inactive Title Bar

D_RND_LST_ENA

Enabled List

Yes

Bold

7

UNIX, OpenVMS

Window

D_RND_LST_HDR

Enabled List Headere

Yes

Reverse

7

All

n/a

D_RND_MNU_DSA

Disabled Menu Entry

Yes

Reverse

2

UNIX, OpenVMS

Menu

D_RND_MNU_ENA

Enabled Menu Entry

Yes

Bold, reverse

2

UNIX, OpenVMS

Menu

D_RND_MNU_EQS

Menu Entry Quick‑Select

Yes

Bold, reverse, underline

10

UNIX, OpenVMS

n/a

D_RND_MNU_HQS

Menu Header Quick‑Select

Yes

Bold, reverse, underline

10

UNIX, OpenVMS

n/a

D_RND_MNU_SEL

Selected Menu Entry

Yes

Bold

2

UNIX, OpenVMS

Window,
Selected Items

D_RND_MSG_BDR

Message Window Border

Yes

Reverse

4

UNIX, OpenVMS

Message Box

D_RND_MSG

Message Window Body

Yes

Reverse

4

UNIX, OpenVMS

Message Box

D_RND_SCR_BAR

Scroll Bar

Yes

Reverse

8

UNIX, OpenVMS

Scrollbar

D_RND_SEL_BCK

Selection Window Body

Yes

Remove reverse

n/a

UNIX, OpenVMS

Window

D_RND_SEL_BDR

Selection Window Border

No

n/a

n/a

UNIX, OpenVMS

Active Window Border,
Inactive Window Border

D_RND_SEL_EQS

Sel Wnd Quick‑Selects

Yes

Underline

10

UNIX, OpenVMS

n/a

D_RND_SEL_SEL

Select Wnd Selected Item

Yes

Add reverse

n/a

UNIX, OpenVMS

Window,
Selected Items

D_RND_SEL_TTL

Selection Window Title

No

n/a

n/a

UNIX, OpenVMS

Active Title Bar,
Inactive Title Bar

D_RND_WIN_BCK

Generic Window Background

No

n/a

n/a

All

n/a

D_RND_WIN_BDR

General Window Border

No

n/a

n/a

UNIX, OpenVMS

Active Window Border,
Inactive Window Border

D_RND_WIN_TTL

General Window Title

No

n/a

n/a

UNIX, OpenVMS

Active Title Bar,
Inactive Title Bar

D‑RND_LST_DSA

Disabled List

Yes

n/a

7

UNIX, OpenVMS

Window

D‑RND_LST_FTR

Enabled List Footere

Yes

Reverse

7

All

n/a

D‑RND_LST_SEL

Selected Item in List

Yes

Bold, reverse

7

UNIX, OpenVMS

Window, Selected Items

D‑RND_SCR_IND

Scroll Bar Indicators

Yes

Bold, reverse

8

UNIX, OpenVMS

3D Objects

User Rendition 1 through User Rendition 5

Yes

None

1

All

n/a

a. On Windows, these renditions apply only if the header has multiple lines.

b. For check boxes, these apply to the prompt only if Input Field Processing is not applied (see E_STATE) and no field‑level renditions are set for the check boxes.

c. On UNIX and OpenVMS, these can be changed only by U_REND (not by U_EDITREND or U_MODREND). On Windows, these renditions cannot be changed by Toolkit.

d. On Windows, only U_REND can set these (they cannot be set by U_EDITREND or U_MODREND), and they are not used for lists (ActiveX Toolkit lists or standard Toolkit lists). Additionally, these renditions apply only if the E_STATE code D_INPPRCRND is set to on, and they override field‑level settings only if the E_STATE code D_INPRNDOVER is set to on. See E_STATE.

e. These do not apply to ActiveX Toolkit lists.

Renditions for specific UI elements

There are some renditions you can set for specific UI elements (rather than types of UI elements):

Rendition schemes and Toolkit renditions for types of UI elements

In addition to the renditions for specific UI elements, you can set renditions for types of UI elements. For example, the Read‑Only Input Field Display renditions control the look of read‑only input fields (though there may be overrides for individual fields, and the Read‑Only Input Field Processing renditions may be used for an active read‑only input field).

On UNIX and OpenVMS, there are 47 Toolkit renditions for types of UI elements. On Windows, there are only 14. In both cases, five of these are user‑assigned Toolkit renditions. (See the Renditions table.) There are more on UNIX and OpenVMS because on these platforms Toolkit controls the look of all UI elements. On Windows, however, the Windows Control Panel and Windows settings and defaults control the look of most UI elements, leaving only nine UI elements for Toolkit renditions (plus the five user‑assigned Toolkit renditions).

A full set of renditions is a rendition scheme. You can create, change, and delete rendition schemes, and you can save them to and load them from rendition files as described in the following table.

Working with Rendition Schemes

To…

Do the following…

For more information, see…

Create a rendition scheme

Start by modifying an existing rendition scheme. Then use U_SAVREND to save it to a new rendition file by passing the name of a non‑existent file as the filename argument.

U_SAVREND

Load a rendition scheme from your Toolkit application

Use U_LDREND (if you want to specify a channel on which the file is open)
or
U_RSTREND (if you want to specify the filename or a rendition file rather than a channel).

U_LDREND

U_RSTREND

Modify a rendition scheme from your application

Use U_REND.

U_REND

Save the current rendition scheme or a specified rendition scheme from your application

Use U_STOREND (if you want to specify a channel on which the rendition file is open)
or
U_SAVREND (if you want to specify the filename of the rendition file rather than a channel).

U_STOREND

U_SAVREND

Enable your users to modify, load, save, or delete rendition schemes

Call U_MODREND or U_EDITREND from your application
or
give your users access to Synergy UI Toolkit Control Panel or Proto, both of which call U_EDITREND when you select “Renditions” from their menu.

(See U_MODREND versus U_EDITREND below.)

Using the Renditions window (Windows)

Using the U_EDITREND screens (UNIX and OpenVMS)

Manually modify, load, save, or delete rendition schemes

Open Synergy UI Toolkit Control Panel or Proto and select “Renditions” from the menu. This opens the Renditions screen, which enables you to do these things as well as modify color palette entries.

Using the Renditions window (Windows)

Using the Palette Entry window (Windows)

Using the U_EDITREND screens (UNIX and OpenVMS)

For Windows, note the following:

U_MODREND versus U_EDITREND

Both U_MODREND and U_EDITREND open the Renditions window, which enables users to load, change, save, and delete rendition schemes (as well as color palette entries). The difference is that while U_EDITREND automatically saves rendition changes to the loaded rendition (and can save them to a specified rendition scheme), U_MODREND just modifies the rendition scheme loaded in memory. U_MODREND doesn’t save the rendition scheme unless the user clicks the Save button and supplies a rendition scheme name.

Files and environment variables used for rendition schemes

The following files and environment variables are used with rendition schemes:

UI Toolkit looks for the rendition file as follows:

Customizing user‑assigned Toolkit renditions

U_EDITREND, U_MODREND, and U_REND enable you to customize the five user‑assigned Toolkit renditions, which are renditions that you and your users can assign to a type of element. (See Uses for user‑assigned Toolkit renditions below.) If you call U_EDITREND or U_MODREND, you can specify the number of user‑assigned renditions to be modified and, on UNIX and OpenVMS, their descriptions in the selection window and example windows in the Sample Windows screen section.

By default, the following is true on UNIX and OpenVMS:

Uses for user‑assigned Toolkit renditions

User‑assigned Toolkit renditions can be assigned to types of UI elements. For example, if you’ve written routines to create and maintain a checklist window of your own invention (like the one in figure 1), you can use user‑assigned renditions to assign unique combinations of attributes and colors to the window background and text, to the border and title, and to the check mark character.

1. Window with user‑assigned renditions.

Window with user-assigned renditions

For example, you could assign user rendition 1 as the rendition for the checklist body, user rendition 2 as the rendition for the border and title, and user rendition 3 as the rendition for the check mark character. The routines in your application that create and maintain these windows can call U_REND with the D_COPY argument to get the current settings for these renditions and then apply them to the windows.

Additionally, if you want to give your end users access to these renditions, you can tie a utility menu entry to a call to U_EDITREND within your application and tell U_EDITREND that three user renditions will be used. (A utility menu entry is one that begins with U_ and is handled by an EUTILS_METHOD routine.)

If your application runs on UNIX or OpenVMS, you can pass a three‑element array of the descriptions for these renditions—for example, “Checklist Body,” “Checklist Border,” and “Checklist Check Mark.” These descriptions will then appear in the Select Screen Area window when U_EDITREND or U_MODREND is called, enabling users to modify them as they would any other Toolkit rendition.

UNIX and OpenVMS also enable you to customize the prototype for the window that will appear in the Sample Windows window when you call U_EDITREND or U_MODREND. To continue with the checklist window example above, you could create a window that looks just like the checklist window that your routines create and modify. (Note that it doesn’t need to be a functioning model of the window, and note that the sample check mark characters should be window fields created with the W_FLDS subroutine.) You would place this window at the position in the screen where you want it to appear when the user selects one of these renditions from the Select Screen Area window. Then, when you call U_EDITREND or U_MODREND, pass the ID of this window in all three elements of the sample window ID’s array.

See U_EDITREND for additional information.

Using the Renditions window (Windows)

The Renditions window (figure 2) enables you to manually restore, modify, delete, and save rendition schemes. The Sample windows area shows how the current renditions will look. There are several ways to access this dialog:

To modify a rendition, do the following:

1. To modify a rendition scheme other than the one that’s loaded, click Load and select the rendition scheme by name, or click Use Default if you want to switch to the default rendition scheme.
2. Select a rendition by clicking one of the named squares under “Sample windows” or by selecting a rendition name from the “Screen area” list.
3. To assign a different color palette entry to the Toolkit rendition, click one of the numbered squares under “Color palette.” For more information on modifying the color palette, see Using the Palette Entry window (Windows) below.
4. Select any text attributes you want to assign to the rendition.
5. Repeat step 2 through step 4 for each Toolkit rendition whose screen area you want to modify.
6. To save the renditions as a rendition scheme that you can access later by name, click Save and specify a name.
7. When you’re finished, click OK to exit the Renditions dialog box. The rendition scheme that is loaded when you click OK will become the new default.

Using the Palette Entry window (Windows)

You can use the Palette Entry Window to change the foreground (text) and background colors of any palette entry. (For other methods, see Defining and modifying the color palette.)

1. In the Renditions dialog box, select the number for the palette entry you want to modify, and click the Change Colors button.

The Palette Entry window is displayed for the palette entry. (See figure 3.) This dialog box displays colors you can apply to the foreground or background for the palette entry. System colors correspond to Windows system colors and can be changed only from Windows Control Panel. User colors are Synergy colors that you can change by clicking the Define color button or by using the COLORn setting in synergy.ini or synuser.ini. (See COLORn for more information.)

If you make a change in this dialog box, Toolkit updates the corresponding entry in the [colors] section of synergy.ini or synuser.ini if “Save colors to initialization file” is checked in the Renditions window. If there is no existing [colors] section, Toolkit will create one.

2. Click on a color in the “System colors” or “User colors” area.
3. Click “Apply background” if you want to assign the color as the background for the palette entry, or click “Apply foreground” to assign the color to the foreground (used for text). Then click OK.  

3. Assigning a color to a palette entry.

Assigning a color to a palette entry

Using the U_EDITREND screens (UNIX and OpenVMS)

On UNIX and OpenVMS, if you call U_EDITREND or select General > Renditions in Proto or Preferences > Renditions in Synergy UI Toolkit Control Panel, Toolkit displays three windows:

Modify a rendition scheme

1. In the Select Screen Area screen, use the arrow keys to highlight the rendition name for the screen area you want to change. Then press enter.
2. In the Renditions window, use the arrow keys to move to the rendition you want to apply to (or remove from) the rendition and press enter.
3. When you’re finished selecting renditions for the current screen area, press the Exit shortcut.
4. Repeat step 1 through step 3 for each screen area you want to modify.
5. To save the renditions as a rendition scheme that you can access later by name, select Save rendition scheme from the Renditions menu and enter a name for your rendition scheme.

Loading an existing rendition scheme

1. From the Renditions menu, select Load rendition scheme.
2. In the Select Scheme window, use the arrow keys to highlight the scheme you want to load, and press enter.

Assigning different colors to a palette entry

If you are using a color monitor and you have enabled color on your system, you can change colors when your cursor is on one of the color codes in the Renditions window. (For information on enabling color on your system, see WNDC.)

Each color palette entry has a background color code and a foreground color code, each of which can be from 0 to 255. These codes and the colors that they specify are system specific. For example, some systems use basic ANSI color codes, a few of which are listed in the table below:

Color

ANSI code

Black

0

Blue

1

Green

2

Cyan

3

Red

4

Magenta

5

Yellow

6

White

7

To change the background or foreground color for a palette entry,

1. In the Renditions screen, use the arrow keys to move to the palette entry (under “Colors”) you want to modify.
2. From the Renditions menu, select Change colors. The Color Codes screen is displayed.
3. Enter the numeric codes for the colors you want applied to the background and foreground for the color palette entry.

The new background and foreground colors for the palette entry immediately go into effect, changing all screen areas that use the palette entry.

4. When you are done modifying a color palette, you can continue to change renditions for the current screen area or press the Exit shortcut to return to the Select Screen Area window.