IWM is a simple window manager for X11 with Xinerama support written in C with Xlib. It has roughly 1000 lines of code(with coments and empty lines). It is inspired by dwm. It is designed to be a bare-bones start for people to build upon as they need. It operates on a single linked list of fullscreen windows, which the user can move around and swap. It has a simple statusbar at the top of the screen that displays the list of windows with the focused one being highlighted.

To install IWM, clone the repository and run make build in the root directory. This will create the iwm executable. To install the executable, run sudo make install.

IWM is configured by directly editing the source code. There are some configuration options at the top of main.c that can be changed to suit your needs. The configuration options are:

• border_width: The width of the window borders in pixels.
• bar_height: The height of the statusbar.
• fontname: The font used to draw the statusbar.
• fg_color_const: Foreground color.
• bg_color_const: Background color.
• primary_color_const: Primary accent color.

Some other options have to be configured in other places, which I have not yet refactored into variables. These include the terminal emulator and run menu.

Other window managers can have some kind of script that runs on startup. IWM has a simple function called init, which has some defaults, which i recommend to change.

IWM uses the same mechanism as dwm to provide a way for the user to set custom statusbar text without modifying the source code. It is done by changing the name of the root window using a tool like xsetroot. Exaple use: xsetroot -name $(date).

Keybindings are configured in the grabkeys and keypress functions in main.c. The default keybindings are:

• MOD4 + Enter: Open terminal emulator.
• MOD4 + q: Close focused window.
• MOD4 + Space: Open run menu.
• MOD4 + k: Focus window to the left.
• MOD4 + l: Focus window to the right.
• MOD4 + Shift + k: Swap with left window.
• MOD4 + Shift + l: Swap with right window.
• MOD4 + Control + r: Restart the wm.
• MOD4 + Control + Shift + q: Quit the wm.
• MOD4 + period: focus next monitor.
• MOD4 + comma: focus previous monitor.
• MOD4 + Shift + period: move focused client to next monitor.
• MOD4 + Shift + comma: move focused client to previous monitor.