From 4e95553a2d1e442218cf94168b6258e3f5ba255b Mon Sep 17 00:00:00 2001
From: Alex Henrie <alexhenrie24@gmail.com>
Date: Thu, 14 Dec 2023 21:12:42 -0700
Subject: [PATCH] comctl32/listview: Ignore the lParam to WM_PRINTCLIENT and
 add tests.
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Based on simliar patch for comctl32/treeview: 231199bc46

WM_PRINTCLIENT paints the items of a listview, including the item
backgrounds, but never the listview background.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54878
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55005
Co-authored-by: Bernhard Übelacker <bernhardu@mailbox.org>
---
 dlls/comctl32/listview.c       | 12 ++-------
 dlls/comctl32/tests/listview.c | 56 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 10 deletions(-)

diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c
index 7972be9669d..c82473b6205 100644
--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -10832,17 +10832,9 @@ static inline LRESULT LISTVIEW_WMPaint(LISTVIEW_INFO *infoPtr, HDC hdc)
  */
 static LRESULT LISTVIEW_PrintClient(LISTVIEW_INFO *infoPtr, HDC hdc, DWORD options)
 {
-    if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwndSelf))
-        return 0;
-
-    if (options & ~(PRF_ERASEBKGND|PRF_CLIENT))
-        FIXME("(hdc=%p options %#lx) partial stub\n", hdc, options);
-
-    if (options & PRF_ERASEBKGND)
-        LISTVIEW_EraseBkgnd(infoPtr, hdc);
+    FIXME("(hdc=%p options=%#lx) partial stub\n", hdc, options);
 
-    if (options & PRF_CLIENT)
-        LISTVIEW_Paint(infoPtr, hdc);
+    LISTVIEW_Paint(infoPtr, hdc);
 
     return 0;
 }
diff --git a/dlls/comctl32/tests/listview.c b/dlls/comctl32/tests/listview.c
index b1cb0ef16c2..ad60fa5b6b6 100644
--- a/dlls/comctl32/tests/listview.c
+++ b/dlls/comctl32/tests/listview.c
@@ -5978,6 +5978,60 @@ static void test_LVM_REDRAWITEMS(void)
     DestroyWindow(list);
 }
 
+static void test_WM_PRINTCLIENT(void)
+{
+    static const int states[] = {SW_HIDE, SW_SHOW};
+    static const LPARAM params[] = {0, PRF_CHECKVISIBLE, PRF_NONCLIENT, PRF_CLIENT, PRF_ERASEBKGND,
+                                    PRF_CHILDREN, PRF_OWNED};
+    const DWORD list_background = RGB(255, 0, 0);
+    const DWORD text_background = RGB(0, 0, 255);
+    HWND hList;
+    COLORREF clr;
+    LONG ret;
+    RECT rc;
+    HDC hdc;
+    int i, j;
+
+    hList = create_listview_control(LVS_LIST);
+    insert_item(hList, 0);
+
+    ret = SendMessageA(hList, LVM_SETBKCOLOR, 0, list_background);
+    ok(ret == TRUE, "got 0x%lx, expected 0x%x\n", ret, TRUE);
+
+    ret = SendMessageA(hList, LVM_SETTEXTBKCOLOR, 0, text_background);
+    ok(ret == TRUE, "got 0x%lx, expected 0x%x\n", ret, TRUE);
+
+    hdc = GetDC(hwndparent);
+    GetClientRect(hwndparent, &rc);
+
+    for (i = 0; i < ARRAY_SIZE(states); i++)
+    {
+        ShowWindow(hList, states[i]);
+
+        for (j = 0; j < ARRAY_SIZE(params); j++)
+        {
+            winetest_push_context("state=%d lParam=0x%Ix", states[i], params[j]);
+
+            FillRect(hdc, &rc, GetStockObject(BLACK_BRUSH));
+            clr = GetPixel(hdc, 1, 1);
+            ok(clr == RGB(0, 0, 0), "got 0x%lx\n", clr);
+            clr = GetPixel(hdc, 50, 1);
+            ok(clr == RGB(0, 0, 0), "got 0x%lx\n", clr);
+            ret = SendMessageA(hList, WM_PRINTCLIENT, (WPARAM)hdc, params[j]);
+            ok(ret == 0, "got %ld\n", ret);
+            clr = GetPixel(hdc, 1, 1);
+            ok(clr == text_background, "got 0x%lx\n", clr);
+            clr = GetPixel(hdc, 50, 1);
+            ok(clr == RGB(0, 0, 0), "got 0x%lx\n", clr);
+
+            winetest_pop_context();
+        }
+    }
+
+    ReleaseDC(hwndparent, hdc);
+    DestroyWindow(hList);
+}
+
 static void test_imagelists(void)
 {
     HWND hwnd, header;
@@ -7153,6 +7207,7 @@ START_TEST(listview)
     test_dispinfo();
     test_LVM_SETITEMTEXT();
     test_LVM_REDRAWITEMS();
+    test_WM_PRINTCLIENT();
     test_imagelists();
     test_deleteitem();
     test_insertitem();
@@ -7205,6 +7260,7 @@ START_TEST(listview)
     test_dispinfo();
     test_LVM_SETITEMTEXT();
     test_LVM_REDRAWITEMS();
+    test_WM_PRINTCLIENT();
     test_oneclickactivate();
     test_state_image();
     test_LVSCW_AUTOSIZE();
-- 
2.11.4.GIT