--- a/ios/dw.m	Sun Nov 13 19:54:17 2022 +0000
+++ b/ios/dw.m	Mon Nov 14 20:38:19 2022 +0000
@@ -10014,10 +10014,15 @@
  *       filename: a path to a file (Bitmap on OS/2 or
  *                 Windows and a pixmap on Unix, pass
  *                 NULL if you use the id param)
- */
-void API dw_window_set_bitmap_from_data(HWND handle, unsigned long cid, const char *data, int len)
+ * Returns:
+ *        DW_ERROR_NONE on success.
+ *        DW_ERROR_UNKNOWN if the parameters were invalid.
+ *        DW_ERROR_GENERAL if the bitmap was unable to be loaded.
+ */
+int API dw_window_set_bitmap_from_data(HWND handle, unsigned long cid, const char *data, int len)
 {
     id object = handle;
+    int retval = DW_ERROR_UNKNOWN;
 
     if([object isKindOfClass:[UIImageView class]] || [object isMemberOfClass:[DWButton class]])
     {
@@ -10039,22 +10044,26 @@
                     UIImageView *iv = object;
                     [iv setImage:pixmap];
                 }
-            }
-            /* If we changed the bitmap... */
-            Item *item = _dw_box_item(handle);
-
-            /* Check to see if any of the sizes need to be recalculated */
-            if(item && (item->origwidth == DW_SIZE_AUTO || item->origheight == DW_SIZE_AUTO))
-            {
-                _dw_control_size(handle, item->origwidth == DW_SIZE_AUTO ? &item->width : NULL, item->origheight == DW_SIZE_AUTO ? &item->height : NULL);
-                /* Queue a redraw on the top-level window */
-                _dw_redraw([object window], TRUE);
-            }
+                /* If we changed the bitmap... */
+                Item *item = _dw_box_item(handle);
+
+                /* Check to see if any of the sizes need to be recalculated */
+                if(item && (item->origwidth == DW_SIZE_AUTO || item->origheight == DW_SIZE_AUTO))
+                {
+                    _dw_control_size(handle, item->origwidth == DW_SIZE_AUTO ? &item->width : NULL, item->origheight == DW_SIZE_AUTO ? &item->height : NULL);
+                    /* Queue a redraw on the top-level window */
+                    _dw_redraw([object window], TRUE);
+                }
+                retval = DW_ERROR_NONE;
+            }
+            else
+                retval = DW_ERROR_GENERAL;
             DW_LOCAL_POOL_OUT;
         }
         else
-            dw_window_set_bitmap(handle, cid, NULL);
-    }
+            return dw_window_set_bitmap(handle, cid, NULL);
+    }
+    return retval;
 }
 
 /*
@@ -10066,10 +10075,15 @@
  *       filename: a path to a file (Bitmap on OS/2 or
  *                 Windows and a pixmap on Unix, pass
  *                 NULL if you use the id param)
- */
-void API dw_window_set_bitmap(HWND handle, unsigned long resid, const char *filename)
+ * Returns:
+ *        DW_ERROR_NONE on success.
+ *        DW_ERROR_UNKNOWN if the parameters were invalid.
+ *        DW_ERROR_GENERAL if the bitmap was unable to be loaded.
+ */
+int API dw_window_set_bitmap(HWND handle, unsigned long resid, const char *filename)
 {
     id object = handle;
+    int retval = DW_ERROR_UNKNOWN;
     DW_LOCAL_POOL_IN;
 
     if([object isKindOfClass:[UIImageView class]] || [object isMemberOfClass:[DWButton class]])
@@ -10088,10 +10102,14 @@
                 nstr = [nstr stringByAppendingString: [NSString stringWithUTF8String:ext]];
                 bitmap = [[UIImage alloc] initWithContentsOfFile:nstr];
             }
+            if(!bitmap)
+                retval = DW_ERROR_GENERAL;
         }
         if(!bitmap && resid > 0 && resid < 65536)
         {
             bitmap = _dw_icon_load(resid);
+            if(!bitmap)
+                retval = DW_ERROR_GENERAL;
         }
 
         if(bitmap)
@@ -10117,9 +10135,11 @@
                 /* Queue a redraw on the top-level window */
                 _dw_redraw([object window], TRUE);
             }
+            retval = DW_ERROR_NONE;
         }
     }
     DW_LOCAL_POOL_OUT;
+    return retval;
 }
 
 /*