[reactos] 01/01: [SHELL32] Pass correct lParam to DFM_INVOKECOMMAND (#6765)

[Whindmar Saksit]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3b73d62eaacb9f3d988b0…

commit 3b73d62eaacb9f3d988b0ce058b501a529db3193
Author:     Whindmar Saksit <whindsaks(a)proton.me>
AuthorDate: Thu Aug 22 21:04:48 2024 +0200
Commit:     GitHub <noreply(a)github.com>
CommitDate: Thu Aug 22 21:04:48 2024 +0200

    [SHELL32] Pass correct lParam to DFM_INVOKECOMMAND (#6765)
---
 dll/win32/shell32/CDefaultContextMenu.cpp | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/dll/win32/shell32/CDefaultContextMenu.cpp
b/dll/win32/shell32/CDefaultContextMenu.cpp
index 751958da3f8..9bc9c97ab68 100644
--- a/dll/win32/shell32/CDefaultContextMenu.cpp
+++ b/dll/win32/shell32/CDefaultContextMenu.cpp
@@ -157,6 +157,7 @@ class CDefaultContextMenu :
         WCHAR m_DefVerbs[MAX_PATH];
 
         HRESULT _DoCallback(UINT uMsg, WPARAM wParam, LPVOID lParam);
+        HRESULT _DoInvokeCommandCallback(LPCMINVOKECOMMANDINFOEX lpcmi, WPARAM CmdId);
         void AddStaticEntry(const HKEY hkeyClass, const WCHAR *szVerb, UINT uFlags);
         void AddStaticEntriesForKey(HKEY hKey, UINT uFlags);
         void TryPickDefault(HMENU hMenu, UINT idCmdFirst, UINT DfltOffset, UINT uFlags);
@@ -1053,7 +1054,7 @@ HRESULT
 CDefaultContextMenu::DoProperties(
     LPCMINVOKECOMMANDINFOEX lpcmi)
 {
-    HRESULT hr = _DoCallback(DFM_INVOKECOMMAND, DFM_CMD_PROPERTIES, NULL);
+    HRESULT hr = _DoInvokeCommandCallback(lpcmi, DFM_CMD_PROPERTIES);
 
     // We are asked to run the default property sheet
     if (hr == S_FALSE)
@@ -1458,6 +1459,29 @@ CDefaultContextMenu::InvokeRegVerb(
     return S_OK;
 }
 
+HRESULT
+CDefaultContextMenu::_DoInvokeCommandCallback(
+    LPCMINVOKECOMMANDINFOEX lpcmi, WPARAM CmdId)
+{
+    BOOL Unicode = IsUnicode(*lpcmi);
+    WCHAR lParamBuf[MAX_PATH];
+    LPARAM lParam = 0;
+
+    if (Unicode && lpcmi->lpParametersW)
+        lParam = (LPARAM)lpcmi->lpParametersW;
+    else if (lpcmi->lpParameters)
+        lParam = SHAnsiToUnicode(lpcmi->lpParameters, lParamBuf, _countof(lParamBuf))
? (LPARAM)lParamBuf : 0;
+
+    HRESULT hr;
+#if 0 // TODO: Try DFM_INVOKECOMMANDEX first.
+    DFMICS dfmics = { sizeof(DFMICS), lpcmi->fMask, lParam, m_iIdSCMFirst?,
m_iIdDfltLast?, (LPCMINVOKECOMMANDINFO)lpcmi, m_site };
+    hr = _DoCallback(DFM_INVOKECOMMANDEX, CmdId, &dfmics);
+    if (hr == E_NOTIMPL)
+#endif
+        hr = _DoCallback(DFM_INVOKECOMMAND, CmdId, (void*)lParam);
+    return hr;
+}
+
 HRESULT
 WINAPI
 CDefaultContextMenu::InvokeCommand(
@@ -1498,7 +1522,7 @@ CDefaultContextMenu::InvokeCommand(
 
     if (m_iIdCBFirst != m_iIdCBLast && CmdId >= m_iIdCBFirst && CmdId
< m_iIdCBLast)
     {
-        Result = _DoCallback(DFM_INVOKECOMMAND, CmdId - m_iIdCBFirst, NULL);
+        Result = _DoInvokeCommandCallback(&LocalInvokeInfo, CmdId - m_iIdCBFirst);
         return Result;
     }