X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=irrlicht%2Fdevice.scm;h=04988d39602e24deb51ead3f2cce967fccbaa750;hb=357f279e004c6257a160205835c06c283d317ef7;hp=a9aa82ba45e3e14418a087de1001b3760e327734;hpb=3142c11414c702c8b1446d12e6e522066a8fd817;p=guile-irrlicht.git

diff --git a/irrlicht/device.scm b/irrlicht/device.scm
index a9aa82b..04988d3 100644
--- a/irrlicht/device.scm
+++ b/irrlicht/device.scm
@@ -46,16 +46,13 @@
        "In procedure create-device: Wrong type argument (expecting <event-receiver>):"
        receiver))
 
-  (make <irrlicht-device>
-    #:irr-pointer
-    ((get-irrlicht-proc "createDevice")
-     device-type
-     window-size
-     bits
-     fullscreen
-     stencilbuffer
-     vsync
-     receiver)))
+  (let* ((createDevice (get-irrlicht-proc "createDevice"))
+         (device-pointer (createDevice device-type window-size bits fullscreen stencilbuffer
+                                       vsync receiver)))
+    (cond ((null-pointer? device-pointer)
+           (error "In procedure create-device: Device cannot be created"))
+          (else
+           (make <irrlicht-device> #:irr-pointer device-pointer)))))
 
 (define-method (get-cursor-control (device <irrlicht-device>))
   (let ((getCursorControl (get-irrlicht-proc "getCursorControl" device)))
@@ -91,5 +88,9 @@
   ((get-irrlicht-proc "setWindowCaption" device)
    device text))
 
+(define-method (yield-device (device <irrlicht-device>))
+  (let ((yield (get-irrlicht-proc "yield" device)))
+    (yield device)))
+
 (export create-device get-cursor-control get-file-system get-gui-environment get-scene-manager
-        get-video-driver is-window-active? run set-window-caption!)
+        get-video-driver is-window-active? run set-window-caption! yield-device)