Sets the button style for a title-bar button. button is the title-bar button number between 0 and 9, or one of "All", "Left", "Right", or "Reset". Button numbering is described in the Mouse command section. If the style and flags are enclosed in parentheses, then multiple state definitions can be specified per line.

state refers to which button state should be set. Button states are defined as follows: "ActiveUp" and "ActiveDown" refer to the un-pressed and pressed states for buttons on active windows; while the "InactiveUp" and "InactiveDown" states denote buttons on inactive windows. The shortcut "Active" denotes both "ActiveUp" and "ActiveDown" states. Shortcut "Inactive" denotes both "InactiveUp" and "InactiveDown" states. The similar state names like just described, but with the "Toggled" prefix are used instead for title buttons which have one of the MwmDecorMax, MwmDecorShade, MwmDecorStick or MwmDecorLayer hints, if the window is maximized, shaded, sticky or placed on specific layer, respectively.

AddToDecor Default
 + ButtonStyle 6                   \
   Vector 4 50x25@1 85x75@0 15x75@0 50x25@1
 + ButtonStyle 6 ToggledActiveUp   \
   Vector 4 50x75@0 85x25@1 15x25@0 50x75@0
 + ButtonStyle 6 ToggledActiveDown \
   Vector 4 50x75@0 85x25@1 15x25@0 50x75@0
 + ButtonStyle 6 ToggledInactive   \
   Vector 4 50x75@0 85x25@1 15x25@0 50x75@0
 + ButtonStyle 6 - MwmDecorShade
Mouse 0 6 N WindowShade

Additionally, the following shortcuts may be used: "AllNormal", "AllToggled", "AllActive", "AllInactive", "AllUp", "AllDown". They are actually different masks for 4 individual states from 8 total. These are supported too: "AllActiveUp", "AllActiveDown", "AllInactiveUp", "AllInactiveDown".

If state is specified, that particular button state is set. If state is omitted, every state is set. Specifying a style destroys the current style (use AddButtonStyle to avoid this).

If style is omitted, then state-dependent flags can be set for the primary button style without destroying the current style. Examples (each line should be considered independent):

ButtonStyle Left -- flat
ButtonStyle All ActiveUp (-- flat) Inactive (-- flat)

The first line sets every state of the left buttons to flat, while the second sets only the "ActiveUp" and "Inactive" states of every button to flat (only flags are changed; the buttons' individual styles are not changed).

If you want to reset all buttons to their defaults:

ButtonStyle Reset

To reset the "ActiveUp" button state of button 1 to the default:

ButtonStyle 1 ActiveUp Default

To reset all button states of button 1 to the default of button number 2:

ButtonStyle 1 Default 2

For any button, multiple state definitions can be given on one line by enclosing the style and flags in parentheses. If only one definition per line is given the parentheses can be omitted.

flags affect the specified state. If a '!' is prefixed to any flag, its behavior is negated. The available state-dependent flags for all styles are described here (the ButtonStyle entry deals with state-independent flags).

Raised causes a raised relief pattern to be drawn.

Sunk causes a sunken relief pattern to be drawn.

Flat inhibits the relief pattern from being drawn.

UseTitleStyle causes the given button state to render the current title style before rendering the buttons' own styles. The Raised, Flat and Sunk TitleStyle flags are ignored since they are redundant in this context.

UseBorderStyle causes the button to inherit the decorated BorderStyle options.

Raised, Sunk and Flat are mutually exclusive, and can be specified for the initial ButtonStyle only. UseTitleStyle and UseBorderStyle are also mutually exclusive (both can be off however). The default is Raised with both UseBorderStyle and UseTitleStyle left unset.

Button styles are classified as non-destructive, partially destructive, or fully destructive. Non-destructive styles do not affect the image. Partially destructive styles can obscure some or all parts of the underlying image (i.e. Pixmap). Fully destructive styles obscure the entire underlying image (i.e. Solid or one of the gradient styles). Thus, if stacking styles with AddButtonStyle (or AddTitleStyle for title-bars), use care in sequencing styles to minimize redraw.

The available styles are:

Simple, Default, Solid, Colorset, Vector, ?Gradient, Pixmap, AdjustedPixmap, ShrunkPixmap, StretchedPixmap, TiledPixmap, MiniIcon

The description of these styles and their arguments follow:

The Simple style does nothing. There are no arguments, and this style is an example of a non-destructive button style.

The Default style conditionally accepts one argument: a number which specifies the default button number to load. If the style command given is ButtonStyle or AddButtonStyle, the argument is optional (if given, it overrides the current button). If a command other than ButtonStyle or AddButtonStyle is used, the number must be specified.

The Solid style fills the button with a solid color. The relief border color is not affected. The color is specified as a single argument. This style is fully destructive.

The Colorset cs [alpha] style fills the button with the Colorset cs. The optional alpha argument is a percentage between 0 and 100. It causes fvwm to merge the colorset background onto the button using this percentage. If the percentage is 0 the colorset background is hidden and if it is 100 the colorset background is fully applied. The default is 100. So, the destructiveness depends on the alpha argument.

The Vector num X[offsetp]xY[offsetp]@C ... style draws a line pattern. Since this is a standard button style, the keyword Vector is optional, num is a number of point specifications of the form X[offsetp]xY[offsetp]@C ... X and Y are point coordinates inside the button, given in percents (from 0 to 100). An optional absolute offset in pixels, can be given as "+<offset>p" for a positive or "-<offset>p" for a negative offset.

C specifies a line color (0 - the shadow color, 1 - the highlight color, 2 - the background color, 3 - the foreground color, 4 - only move the point, do not draw). The first point color is not used. You can use up to 10000 points in a line pattern. This style is partially destructive.

The specification is a little cumbersome:

ButtonStyle 2 Vector 4 50x30@1 70x70@0 30x70@0 50x30@1

then the button 2 decoration uses a 4-point pattern consisting of a line from (x=50,y=30) to (70,70) in the shadow color (@0), and then to (30,70) in the shadow color, and finally to (50,30) in the highlight color (@1). Is that too confusing? See the fvwm web pages for some examples with screenshots.

A more complex example of Vector:

ButtonStyle 8 Vector 10 45x65@2 45x75@3 \
  20x75@3 20x50@3 35x50@3 35x65@1 35x25@1 \
  75x25@1 75x65@0 35x65@0
ButtonStyle 0 Vector 10 45x65@2 45x75@0 \
  20x75@0 20x50@1 45x50@1 45x65@0 75x65@3 \
  75x25@3 35x25@3 35x47@3

The ?Gradient styles denote color gradients. Fill in the question mark with any one of the defined gradient types. Please refer to the Color Gradients section for a description of the gradient syntax. The gradient styles are fully destructive.

The Pixmap style displays a pixmap. A pixmap should be specified as an argument. For example, the following would give button number 2 the same pixmap for all 4 states (2 active and 2 inactive), and button number 4 all different pixmaps.

ButtonStyle 2 Pixmap my_pixmap.xpm
ButtonStyle 4 \
	ActiveUp (Pixmap activeup.xpm) \
	ActiveDown (Pixmap activedown.xpm) \
	Inactive (Pixmap inactiveup.xpm)
ButtonStyle 4 \
	InactiveDown Pixmap inactivedown.xpm

The pixmap specification can be given as an absolute or relative pathname (see ImagePath). If the pixmap cannot be found, the button style reverts to Simple. Flags specific to the Pixmap style are Left, Right, Top, and Bottom. These can be used to justify the pixmap (default is centered for both directions). Pixmap transparency is used for the color "None." This style is partially destructive.

The AdjustedPixmap style is similar to the Pixmap style. But the image is resized to exactly fit the button.

The ShrunkPixmap style is similar to the Pixmap style. But if the image is bigger than the button the image is resized to fit into the button.

The StretchedPixmap style is similar to the Pixmap style. But if the image is smaller than the button the image is resized to cover the button.

The TiledPixmap style accepts a pixmap to be tiled as the button background. One pixmap is specified as an argument. Pixmap transparency is not used. This style is fully destructive.

The MiniIcon style draws the window's miniature icon in the button, which is specified with the MiniIcon option of the Style command. This button style accepts no arguments. Example:

Style *     MiniIcon mini-bx2.xpm
Style xterm MiniIcon mini-term.xpm
Style Emacs MiniIcon mini-doc.xpm

ButtonStyle 1 MiniIcon

Sets state-independent flags for the specified button. State-independent flags affect button behavior. Each flag is separated by a space. If a '!' is prefixed to the flag then the behavior is negated. The special flag Clear clears any existing flags.

The following flags are usually used to tell fvwm which buttons should be affected by mwm function hints (see MwmFunctions option of the Style command. This is not done automatically since you might have buttons bound to complex functions, for instance.

MwmDecorMenu should be assigned to title-bar buttons which display a menu. The default assignment is the leftmost button. When a window with the MwmFunctions Style option requests not to show this button, it is hidden.

MwmDecorMin should be assigned to title-bar buttons which minimize or iconify the window. The default assignment is the second button over from the rightmost button. When a window with the MwmFunctions Style option requests not to show this button, it is hidden.

MwmDecorMax should be assigned to title-bar buttons which maximize the window. The default assignment is the rightmost button. When a window with the MwmFunctions Style option requests not to show this button, it is hidden. When the window is maximized, the vector pattern on the button looks pressed in.

MwmDecorShade should be assigned to title-bar buttons which shade the window (see WindowShade command). When the window is shaded, the vector pattern on the button looks pressed in.

MwmDecorStick should be assigned to title-bar buttons which make the window sticky. When the window is sticky, the vector pattern on the button looks pressed in.

The flag MwmDecorLayer layer should be assigned to title-bar buttons which place the window in the layer numbered layer. When the window is on that specific layer, the vector pattern on the button looks pressed in.