all repos — dmenu @ 64ab2801fbbbcc028c359080ae4bd546fc871f67

my build of dmenu 

Set class name on menu window

WM_CLASS is a standard ICCCM property which is used to identify windows.
Window managers and compositors use it to allow per-application
configurable behavior.
Omar Sandoval osandov@osandov.com
Fri, 03 Nov 2017 09:49:10 -0700
commit

64ab2801fbbbcc028c359080ae4bd546fc871f67

parent

f428f3e01a4ced5b1df07ddf913bb022692f8035

1 files changed, 2 insertions(+), 0 deletions(-)

jump to
M dmenu.c → dmenu.c 
@@ -545,6 +545,7 @@ XSetWindowAttributes swa;
 	XIM xim;
 	Window w, dw, *dws;
 	XWindowAttributes wa;
+	XClassHint ch = {"dmenu", "dmenu"};
 #ifdef XINERAMA
 	XineramaScreenInfo *info;
 	Window pw;

@@ -613,6 +614,7 @@ swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
 	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
 	                    CopyFromParent, CopyFromParent, CopyFromParent,
 	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
+	XSetClassHint(dpy, win, &ch);
 
 	/* open input methods */
 	xim = XOpenIM(dpy, NULL, NULL, NULL);