press, no release

Makefile

@@ -0,0 +1,7 @@
+
+PROG	= anyscroll
+FLAGS	= -lX11 -lXtst
+
+
+${PROG}: ${PROG}.o 
+	gcc ${PROG}.c -o ${PROG} ${FLAGS}

anyscroll.c

@@ -0,0 +1,71 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/XTest.h>
+#include <unistd.h>
+
+
+static Display *dpy;
+static int scr, sw, sh;
+
+static Window root;
+
+static void pressButton(int btn) {
+	XTestFakeButtonEvent(dpy, btn, True, CurrentTime);
+	XFlush(dpy);
+}
+static void releaseButton(int btn) {
+	XTestFakeButtonEvent(dpy, btn, False, CurrentTime);
+	XFlush(dpy);
+}
+
+
+int main(int argc, const char **argv) {
+	
+	for (int i = 1; i < argc; i++) {
+		if (argv[i][1] == 'h') {
+			fprintf(stdout, "there is no help to be given\n");
+		}
+	}
+	
+	if (!(dpy = XOpenDisplay(0x0))) return 1;
+
+	scr = DefaultScreen(dpy);
+	root = XDefaultRootWindow(dpy);
+	sw = DisplayWidth(dpy, scr);
+	sh = DisplayHeight(dpy, scr);
+	
+	fprintf(stdout, "waiting for events\n");
+	
+	const long mask = ButtonPressMask|ButtonReleaseMask;
+//	XGrabPointer(dpy, root, True, mask, GrabModeSync, GrabModeAsync, None, None, CurrentTime);
+	XGrabButton(dpy, 2, AnyModifier, root, True, mask, GrabModeSync, GrabModeAsync, None, None);
+	//XSelectInput(dpy, root, KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask);
+
+	XEvent ev;
+	XButtonEvent *eb;
+
+	int grab = 0; 
+
+	for (;;) {
+		XNextEvent(dpy, &ev);
+		if (ev.type == ButtonPress) {
+			eb = &ev.xbutton;
+			printf("%d button pressed!\n", eb->button);
+//			XGrabPointer(dpy, root, True, PointerMotionMask|ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
+
+		} else if (ev.type == ButtonRelease) {
+			eb = &ev.xbutton;
+			printf("%d button released!\n", eb->button);
+			//releaseButton(2);
+		//	XUngrabPointer(dpy, CurrentTime);			
+		}
+
+		XAllowEvents(dpy, ReplayPointer, CurrentTime);
+		XSync(dpy, 0);
+//		XFlush(dpy);
+	}
+	XCloseDisplay(dpy);
+	return 0;
+}