DPMSの設定機能性を追加

config.h

@@ -41,6 +41,7 @@ static unsigned int gappih    = 5;       /* horiz inner gap between windows */
 static unsigned int gappiv    = 5;        /* vert inner gap between windows */
 static unsigned int gappoh    = 5;        /* horiz outer gap between windows and screen edge */
 static unsigned int gappov    = 5;        /* vert outer gap between windows and screen edge */
+static unsigned int dpms      = -1;        /* 分間。DPMSを無効にする場合：-1 */
 static int swallowfloating    = 0;        /* 1 means swallow floating windows by default */
 static int smartgaps          = 0;        /* 1 means no outer gap when there is only one window */
 static int showbar            = 1;        /* 0 means no bar */
@@ -76,8 +77,6 @@ static Sp scratchpads[] = {
 
 static const char *const autostart[] = {
   "hsetroot", "-center", bgimg, NULL,
-  "xset", "-dpms", NULL,
-  "xset", "s", "off", NULL,
   NULL /* terminate */
 };
 

config.mk

@@ -31,7 +31,7 @@ endif
 
 # includes and libs
 INCS = -I${X11INC} -I${FREETYPEINC}
-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lX11-xcb -lxcb -lxcb-res
+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lX11-xcb -lxcb -lxcb-res -lXext
 ifeq ($(OS),FreeBSD)
 LIBS += -lutil
 endif

dwm.c

@@ -47,6 +47,7 @@
 #ifdef XINERAMA
 #include <X11/extensions/Xinerama.h>
 #endif  /* XINERAMA */
+#include <X11/extensions/dpms.h>
 #include <X11/Xft/Xft.h>
 #include <X11/Xlib-xcb.h>
 #include <xcb/res.h>
@@ -197,6 +198,7 @@ typedef struct {
 } ResourcePref;
 
 /* function declarations */
+static void setdpms();
 static void setupbackgrounds();
 static void applyrules(Client *c);
 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
@@ -396,6 +398,31 @@ static size_t autostart_len;
 /* 背景を設定 */
 char bgimg[100];
 
+void setdpms() {
+  Display *display;
+  int dummy;
+
+  display = XOpenDisplay(NULL);
+  if (!display) {
+    fprintf(stderr, "Xディスプレイを見つけられません。");
+    return;
+  }
+
+  if (!DPMSQueryExtension(display, &dummy, &dummy)) {
+    fprintf(stderr, "DPMSが対応していません。");
+    return;
+  }
+
+  DPMSEnable(display);
+
+  if (dpms == -1) {
+    DPMSDisable(display);
+  }
+
+  XSetScreenSaver(display, dpms, 0, DefaultBlanking, DefaultExposures);
+  XCloseDisplay(display);
+}
+
 void setupbackgrounds() {
   strcpy(bgimg, wallpaper);
   strcat(bgimg, resolution);
@@ -2788,6 +2815,7 @@ main(int argc, char *argv[])
   if (!(xcon = XGetXCBConnection(dpy)))
     die("dwm: cannot get xcb connection\n");
   checkotherwm();
+  setdpms();
   setupbackgrounds();
   autostart_exec();
   XrmInitialize();