[PATCH] shell32: Improve semi-stub SHGetStockIconInfo to return an iconhandle if SHGSI_ICON flag is set

[Louis Lenders]

Fix for bug https://bugs.winehq.org/show_bug.cgi?id=45868

Signed-off-by: Louis Lenders 
---
 dlls/shell32/iconcache.c       | 22 +++++++++++++++++-----
 dlls/shell32/tests/shelllink.c |  8 ++++++++
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/dlls/shell32/iconcache.c b/dlls/shell32/iconcache.c
index 6107e0c33b..73617761a5 100644
--- a/dlls/shell32/iconcache.c
+++ b/dlls/shell32/iconcache.c
@@ -1004,7 +1004,9 @@ INT WINAPI SHGetIconOverlayIndexW(LPCWSTR pszIconPath, INT iIconIndex)
  */
 HRESULT WINAPI SHGetStockIconInfo(SHSTOCKICONID id, UINT flags, SHSTOCKICONINFO *sii)
 {
-    static const WCHAR shell32dll[] = {'\','s','h','e','l','l','3','2','.','d','l','l',0};
+    static const WCHAR shell32dllW[] = {'s','h','e','l','l','3','2','.','d','l','l',0};
+    static const WCHAR slashW[] = {'\',0};
+    HMODULE hmod;

FIXME("(%d, 0x%x, %p) semi-stub\n", id, flags, sii);
     if ((id < 0) || (id >= SIID_MAX_ICONS) || !sii || (sii->cbSize != sizeof(SHSTOCKICONINFO))) {
@@ -1015,14 +1017,24 @@ HRESULT WINAPI SHGetStockIconInfo(SHSTOCKICONID id, UINT flags, SHSTOCKICONINFO

/* no icons defined: use default */
     sii->iIcon = -IDI_SHELL_FILE;
-    lstrcatW(sii->szPath, shell32dll);
-
-    if (flags)
-        FIXME("flags 0x%x not implemented\n", flags);
+    lstrcatW(sii->szPath, slashW);
+    lstrcatW(sii->szPath, shell32dllW);

sii->hIcon = NULL;
     sii->iSysImageIndex = -1;

+    if (flags & SHGSI_ICON)
+    {
+        hmod = GetModuleHandleW(shell32dllW);
+        if (hmod)
+            sii->hIcon = LoadIconW(hmod, MAKEINTRESOURCEW(IDI_SHELL_FILE));
+
+        if (!sii->hIcon)
+            ERR("failed to get an icon handle");
+    }
+    else
+        FIXME("flags 0x%x not implemented\n", flags);
+
     TRACE("%3d: returning %s (%d)\n", id, debugstr_w(sii->szPath), sii->iIcon);

return S_OK;
diff --git a/dlls/shell32/tests/shelllink.c b/dlls/shell32/tests/shelllink.c
index 65e9a6dd55..e0068978ec 100644
--- a/dlls/shell32/tests/shelllink.c
+++ b/dlls/shell32/tests/shelllink.c
@@ -1112,6 +1112,14 @@ static void test_SHGetStockIconInfo(void)
     /* there is a NULL check for the struct  */
     hr = pSHGetStockIconInfo(SIID_FOLDER, SHGSI_ICONLOCATION, NULL);
     ok(hr == E_INVALIDARG, "NULL: got 0x%x\n", hr);
+
+    memset(buffer, '#', sizeof(buffer));
+    sii->cbSize = sizeof(SHSTOCKICONINFO);
+    hr = pSHGetStockIconInfo(SIID_SHIELD, SHGSI_ICON | SHGSI_SMALLICON, sii);
+    ok(hr == S_OK, "got 0x%x (expected S_OK)\n", hr);
+    ok(sii->hIcon != NULL, "got NULL, expected an icon handle\n");
+    ok(sii->iSysImageIndex == -1, "got %d (expected -1)\n", sii->iSysImageIndex);
+    ok(DestroyIcon(sii->hIcon), "DestroyIcon failed\n");
 }

static void test_SHExtractIcons(void)