[reactos] 02/02: [ATL30] Fix m_szAutoName definition and construction in Wine's ATL30 dll.

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=e410a12242a50e85084605...

commit e410a12242a50e850846058ef5c53652340c1724
Author:     Hermès Bélusca-Maïto [e-mail]
AuthorDate: Wed Jan 15 01:14:30 2020 +0100
Commit:     Hermès Bélusca-Maïto [e-mail]
CommitDate: Wed Jan 15 01:21:25 2020 +0100

[ATL30] Fix m_szAutoName definition and construction in Wine's ATL30 dll.

- Make the format actually MS-compatible: "ATL" followed by colon,
      followed by hexadecimal digits of pointer.

- The MS counterpart of this DLL was delivered with Visual C++ 6.0 and
      Windows 98+, so obviously it always was 32-bit and they never had a
      64-bit version for it. But we do. So make the size of the m_szAutoName
      buffer cross-compatible.

- See previous commit dbddd878 and the discussion in PR #2010.
---
 dll/win32/atl/atl30.c             | 8 ++++++++
 sdk/include/reactos/wine/atlwin.h | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/dll/win32/atl/atl30.c b/dll/win32/atl/atl30.c
index 06504d09940..254dbadb084 100644
--- a/dll/win32/atl/atl30.c
+++ b/dll/win32/atl/atl30.c
@@ -313,7 +313,11 @@ ATOM WINAPI AtlModuleRegisterWndClassInfoA(_ATL_MODULEA *pm, _ATL_WNDCLASSINFOA

if (!wci->m_wc.lpszClassName)
         {
+#ifdef __REACTOS__
+            sprintf(wci->m_szAutoName, "ATL:%p", wci);
+#else
             sprintf(wci->m_szAutoName, "ATL%08lx", (UINT_PTR)wci);
+#endif
             TRACE("auto-generated class name %s\n", wci->m_szAutoName);
             wci->m_wc.lpszClassName = wci->m_szAutoName;
         }
@@ -372,7 +376,11 @@ ATOM WINAPI AtlModuleRegisterWndClassInfoW(_ATL_MODULEW *pm, _ATL_WNDCLASSINFOW

if (!wci->m_wc.lpszClassName)
         {
+#ifdef __REACTOS__
+            static const WCHAR szFormat[] = {'A','T','L',':','%','p',0};
+#else
             static const WCHAR szFormat[] = {'A','T','L','%','0','8','l','x',0};
+#endif
             swprintf(wci->m_szAutoName, szFormat, (UINT_PTR)wci);
             TRACE("auto-generated class name %s\n", debugstr_w(wci->m_szAutoName));
             wci->m_wc.lpszClassName = wci->m_szAutoName;
diff --git a/sdk/include/reactos/wine/atlwin.h b/sdk/include/reactos/wine/atlwin.h
index 386177ba610..099f48bcb52 100644
--- a/sdk/include/reactos/wine/atlwin.h
+++ b/sdk/include/reactos/wine/atlwin.h
@@ -29,7 +29,11 @@ typedef struct _ATL_WNDCLASSINFOA_TAG
     LPCSTR m_lpszCursorID;
     BOOL m_bSystemCursor;
     ATOM m_atom;
+#ifdef __REACTOS__
+    CHAR m_szAutoName[sizeof("ATL:") + sizeof(void *) * 2]; // == 4 characters + NULL + number of hexadecimal digits describing a pointer.
+#else
     CHAR m_szAutoName[14];
+#endif
 } _ATL_WNDCLASSINFOA;

typedef struct _ATL_WNDCLASSINFOW_TAG
@@ -40,7 +44,11 @@ typedef struct _ATL_WNDCLASSINFOW_TAG
     LPCWSTR m_lpszCursorID;
     BOOL m_bSystemCursor;
     ATOM m_atom;
+#ifdef __REACTOS__
+    WCHAR m_szAutoName[sizeof("ATL:") + sizeof(void *) * 2]; // == 4 characters + NULL + number of hexadecimal digits describing a pointer.
+#else
     WCHAR m_szAutoName[14];
+#endif
 } _ATL_WNDCLASSINFOW;

ATOM WINAPI AtlModuleRegisterWndClassInfoA(_ATL_MODULEA *pm, _ATL_WNDCLASSINFOA *wci, WNDPROC *pProc);