hello world

neo/sys/osx/showcursor.c

@@ -0,0 +1,54 @@
+/*
+ cc -o showcursor showcursor.c -framework IOKit
+*/
+
+#include <IOKit/IOKitLib.h>
+#include <IOKit/hidsystem/IOHIDShared.h>
+#include <assert.h>
+
+mach_port_t	masterPort;
+
+io_connect_t OpenEventDriver( void )
+{
+    register kern_return_t	kr;
+    mach_port_t		ev, service, iter;
+
+    kr = IOServiceGetMatchingServices( masterPort, IOServiceMatching( kIOHIDSystemClass ), &iter);
+    assert( KERN_SUCCESS == kr);
+
+    service = IOIteratorNext( iter );
+    assert(service);
+
+    kr = IOServiceOpen( service, mach_task_self(), kIOHIDParamConnectType, &ev);
+    assert( KERN_SUCCESS == kr );
+
+    IOObjectRelease( service );
+    IOObjectRelease( iter );
+
+    return( ev );
+}
+
+
+void TestParams( io_connect_t ev, boolean_t show )
+{
+    kern_return_t	kr;
+
+    kr = IOHIDSetCursorEnable( ev, show );
+    assert(KERN_SUCCESS == kr);
+}
+
+int main(int argc, char **argv)
+{
+    kern_return_t		kr;
+    boolean_t show;
+
+    if (argc != 2)
+        show = 1;
+    else
+        show = (atoi(argv[0]) != 0);
+
+    assert( KERN_SUCCESS == ( kr = IOMasterPort( bootstrap_port, &masterPort) ));
+    TestParams( OpenEventDriver(), show);
+
+    return( 0 );
+}