Copy DLLs to both binary dir and sketch folder for runtime access

Author: pepc84

mode/CppMode.jar

@@ -664,16 +664,20 @@ private void checkWindowsDLLs(RunnerListener listener, File binary) throws Excep
     binaryDir.mkdirs();
 
     for (String dll : allDlls) {
-      File dest = new File(binaryDir, dll);
-      if (dest.exists()) continue;
       File src2 = new File(bundledDir, dll);
-      if (src2.exists()) {
-        try { java.nio.file.Files.copy(src2.toPath(), dest.toPath(),
-            java.nio.file.StandardCopyOption.REPLACE_EXISTING); }
-        catch (Exception e) {
-          System.err.println("[CppMode] Failed to copy " + dll + ": " + e.getMessage());
-        }
+      if (!src2.exists()) continue;
+      // Copy to binary dir (next to the exe)
+      File dest = new File(binaryDir, dll);
+      try { java.nio.file.Files.copy(src2.toPath(), dest.toPath(),
+          java.nio.file.StandardCopyOption.REPLACE_EXISTING);
+      } catch (Exception e) {
+        System.err.println("[CppMode] Failed to copy " + dll + ": " + e.getMessage());
       }
+      // Also copy to sketch folder so the sketch can find them when run
+      File sketchDest = new File(binary.getParentFile().getParentFile(), dll);
+      try { java.nio.file.Files.copy(src2.toPath(), sketchDest.toPath(),
+          java.nio.file.StandardCopyOption.REPLACE_EXISTING);
+      } catch (Exception ignored) {}
     }
 
     // If all required DLLs exist in bundledDir, we're good -- they were