An example into how to use the interfaces and functions in this pull …

…request

contrib/platform/test/com/sun/jna/platform/win32/COM/IShellFolderTest.java

@@ -0,0 +1,91 @@
+package com.sun.jna.platform.win32.COM;
+
+/*
+ * Copyright (c) 2015 L W Ahonen, All Rights Reserved
+ *
+ */
+
+
+import com.sun.jna.Pointer;
+import com.sun.jna.platform.win32.*;
+import com.sun.jna.ptr.PointerByReference;
+import junit.framework.TestCase;
+
+public class IShellFolderTest extends TestCase {
+
+    private IShellFolder psfMyComputer;
+
+    public static WinNT.HRESULT BindToCsidl(int csidl, Guid.REFIID riid, PointerByReference ppv) {
+        WinNT.HRESULT hr;
+        PointerByReference pidl = new PointerByReference();
+        hr = Shell32.INSTANCE.SHGetSpecialFolderLocation(null, csidl, pidl);
+        if (COMUtils.SUCCEEDED(hr)) {
+            PointerByReference psfDesktopPTR = new PointerByReference();
+            hr = Shell32.INSTANCE.SHGetDesktopFolder(psfDesktopPTR);
+            if (COMUtils.SUCCEEDED(hr)) {
+                IShellFolder psfDesktop = IShellFolder.Converter.PointerToIShellFolder(psfDesktopPTR);
+                short cb = pidl.getValue().getShort(0);
+                if (cb != 0) {
+                    hr = psfDesktop.BindToObject(pidl.getValue(), null, riid, ppv);
+                } else {
+                    hr = psfDesktop.QueryInterface(riid, ppv);
+                }
+                psfDesktop.Release();
+            }
+            Ole32.INSTANCE.CoTaskMemFree(pidl.getValue());
+        }
+        return hr;
+    }
+
+    public void setUp() throws Exception {
+        Ole32.INSTANCE.CoInitialize(null);
+        int CSIDL_DRIVES = 0x0011;
+        WinNT.HRESULT hr = Ole32.INSTANCE.CoInitialize(null);
+        if (COMUtils.SUCCEEDED(hr)) {
+            PointerByReference psfMyComputerPTR = new PointerByReference(Pointer.NULL);
+            hr = BindToCsidl(CSIDL_DRIVES, new Guid.REFIID(IShellFolder.IID_ISHELLFOLDER), psfMyComputerPTR);
+            if (COMUtils.SUCCEEDED(hr)) {
+                psfMyComputer = IShellFolder.Converter.PointerToIShellFolder(psfMyComputerPTR);
+            }
+        }
+        if(psfMyComputer == null)
+            throw new RuntimeException("Unable to create my computer shell object");
+    }
+
+    public void tearDown() throws Exception {
+        psfMyComputer.Release();
+        Ole32.INSTANCE.CoUninitialize();
+    }
+
+    public void testEnumObjects() throws Exception {
+        PointerByReference peidlPTR = new PointerByReference();
+        int SHCONTF_FOLDERS = 0x20;
+        int SHCONTF_NONFOLDERS = 0x40;
+        boolean sawNames=false;
+
+        WinNT.HRESULT hr = psfMyComputer.EnumObjects(null,
+                SHCONTF_FOLDERS | SHCONTF_NONFOLDERS, peidlPTR);
+        if (COMUtils.SUCCEEDED(hr)) {
+            IEnumIDList peidl = IEnumIDList.Converter.PointerToIEnumIDList(peidlPTR);
+            PointerByReference pidlItem = new PointerByReference();
+            while (peidl.Next(1, pidlItem, null).intValue() == COMUtils.S_OK) {
+                PointerByReference sr = new PointerByReference();
+                hr = psfMyComputer.GetDisplayNameOf(pidlItem.getValue(), 0, sr);
+                if (COMUtils.SUCCEEDED(hr)) {
+                    PointerByReference pszName = new PointerByReference();
+                    hr = Shlwapi.INSTANCE.StrRetToStr(sr, pidlItem.getValue(), pszName);
+                    if (COMUtils.SUCCEEDED(hr)) {
+                        String wideString = pszName.getValue().getWideString(0);
+                        if (wideString != null && wideString.length() > 0)
+                            sawNames = true;
+                        Ole32.INSTANCE.CoTaskMemFree(pszName.getValue());
+                    }
+                    Ole32.INSTANCE.CoTaskMemFree(sr.getValue());
+                }
+                Ole32.INSTANCE.CoTaskMemFree(pidlItem.getValue());
+            }
+            peidl.Release();
+        }
+        assertTrue(sawNames);
+    }
+}