[reactos] 01/01: [USER32] Relax conditions for creating MDI windows (#2454)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=8c5308b5e8be4e6db41a9…

commit 8c5308b5e8be4e6db41a9e2c0a2fdb096c64cfd4
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Fri Mar 20 07:38:33 2020 +0900
Commit:     GitHub <noreply(a)github.com>
CommitDate: Fri Mar 20 07:38:33 2020 +0900

    [USER32] Relax conditions for creating MDI windows (#2454)
    
    The creation conditions of MDI window was too strict. CORE-15633
---
 win32ss/user/user32/windows/window.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/win32ss/user/user32/windows/window.c b/win32ss/user/user32/windows/window.c
index e94d9a1b250..40f051d3b6d 100644
--- a/win32ss/user/user32/windows/window.c
+++ b/win32ss/user/user32/windows/window.c
@@ -411,7 +411,7 @@ CreateWindowExA(DWORD dwExStyle,
         if (pWndParent->fnid != FNID_MDICLIENT) // wine uses WIN_ISMDICLIENT
         {
            WARN("WS_EX_MDICHILD, but parent %p is not MDIClient\n",
hWndParent);
-           return NULL;
+           goto skip_mdi;
         }
 
         /* lpParams of WM_[NC]CREATE is different for MDI children.
@@ -477,6 +477,7 @@ CreateWindowExA(DWORD dwExStyle,
         }
     }
 
+skip_mdi:
     hwnd = User32CreateWindowEx(dwExStyle,
                                 lpClassName,
                                 lpWindowName,
@@ -536,7 +537,7 @@ CreateWindowExW(DWORD dwExStyle,
         if (pWndParent->fnid != FNID_MDICLIENT)
         {
            WARN("WS_EX_MDICHILD, but parent %p is not MDIClient\n",
hWndParent);
-           return NULL;
+           goto skip_mdi;
         }
 
         /* lpParams of WM_[NC]CREATE is different for MDI children.
@@ -602,6 +603,7 @@ CreateWindowExW(DWORD dwExStyle,
         }
     }
 
+skip_mdi:
     hwnd = User32CreateWindowEx(dwExStyle,
                                 (LPCSTR)lpClassName,
                                 (LPCSTR)lpWindowName,