[reactos] 01/01: [SHELL32] Fix exception on modifying deleted file type (#5996)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=edaeef94180e961a78c5a…

commit edaeef94180e961a78c5a5ddbb1c4e1e94473763
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Mon Nov 20 09:27:06 2023 +0900
Commit:     GitHub <noreply(a)github.com>
CommitDate: Mon Nov 20 09:27:06 2023 +0900

    [SHELL32] Fix exception on modifying deleted file type (#5996)
    
    Based on KRosUser's filetypes.patch. Check NULL for pEntry.
    CORE-19324
---
 dll/win32/shell32/dialogs/filetypes.cpp | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/dll/win32/shell32/dialogs/filetypes.cpp
b/dll/win32/shell32/dialogs/filetypes.cpp
index 78e5f7322ad..ad394c8b1d3 100644
--- a/dll/win32/shell32/dialogs/filetypes.cpp
+++ b/dll/win32/shell32/dialogs/filetypes.cpp
@@ -1722,8 +1722,11 @@ FolderOptionsFileTypesDlg(
                 case IDC_FILETYPES_ADVANCED:
                     edittype.hwndLV = GetDlgItem(hwndDlg, IDC_FILETYPES_LISTVIEW);
                     edittype.pEntry = FileTypesDlg_GetEntry(edittype.hwndLV);
-                    DialogBoxParamW(shell32_hInstance, MAKEINTRESOURCEW(IDD_EDITTYPE),
-                                    hwndDlg, EditTypeDlgProc, (LPARAM)&edittype);
+                    if (edittype.pEntry)
+                    {
+                        DialogBoxParamW(shell32_hInstance,
MAKEINTRESOURCEW(IDD_EDITTYPE),
+                                        hwndDlg, EditTypeDlgProc,
(LPARAM)&edittype);
+                    }
                     break;
             }
             break;
@@ -1745,8 +1748,11 @@ FolderOptionsFileTypesDlg(
                 case NM_DBLCLK:
                     edittype.hwndLV = GetDlgItem(hwndDlg, IDC_FILETYPES_LISTVIEW);
                     edittype.pEntry = FileTypesDlg_GetEntry(edittype.hwndLV);
-                    DialogBoxParamW(shell32_hInstance, MAKEINTRESOURCEW(IDD_EDITTYPE),
-                                    hwndDlg, EditTypeDlgProc, (LPARAM)&edittype);
+                    if (edittype.pEntry)
+                    {
+                        DialogBoxParamW(shell32_hInstance,
MAKEINTRESOURCEW(IDD_EDITTYPE),
+                                        hwndDlg, EditTypeDlgProc,
(LPARAM)&edittype);
+                    }
                     break;
 
                 case LVN_DELETEALLITEMS: