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Inter-Client Communication Conventions Manual
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<p>In <a href="/facts/Computing/Kghtm9fX">computing</a>, the Inter-Client Communication Conventions Manual (ICCCM or I39L short for "I", 39 letters and "L") is a standard protocol for the <a href="/facts/X_Window_System/ac2vRIQL">X Window System</a>. It specifies conventions for <a href="/facts/Client_(computing)/u0wlVsWI">clients</a> of a common <a href="/facts/X_Window_System_protocols_and_architecture/1AMaB1yE">X server</a> about <a href="/facts/X_Window_selection/1mPMtMIy">selections and cut buffers</a>, communication with the <a href="/facts/X_window_manager/jccjahgG">window manager</a> and <a href="/facts/X_session_manager/1lIjrgzx">session manager</a>, manipulation of shared resources, and color characterization. </p>