chore: initial commit (extracted from Launchers monorepo)
Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
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// Windows/Menu.cpp
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#include "StdAfx.h"
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#ifndef _UNICODE
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#include "../Common/StringConvert.h"
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#endif
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#include "Menu.h"
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#ifndef _UNICODE
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extern bool g_IsNT;
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#endif
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namespace NWindows {
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/*
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structures
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MENUITEMINFOA
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MENUITEMINFOW
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contain additional member:
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#if (WINVER >= 0x0500)
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HBITMAP hbmpItem;
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#endif
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If we compile the source code with (WINVER >= 0x0500), some functions
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will not work at NT4, if cbSize is set as sizeof(MENUITEMINFO).
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So we use size of old version of structure in some conditions.
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Win98 probably supports full structure including hbmpItem.
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We have 2 ways to get/set string in menu item:
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win95/NT4: we must use MIIM_TYPE only.
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MIIM_TYPE : Retrieves or sets the fType and dwTypeData members.
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win98/win2000: there are new flags that can be used instead of MIIM_TYPE:
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MIIM_FTYPE : Retrieves or sets the fType member.
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MIIM_STRING : Retrieves or sets the dwTypeData member.
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Windows versions probably support MIIM_TYPE flag, if we set MENUITEMINFO::cbSize
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as sizeof of old (small) MENUITEMINFO that doesn't include (hbmpItem) field.
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But do all Windows versions support old MIIM_TYPE flag, if we use
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MENUITEMINFO::cbSize as sizeof of new (big) MENUITEMINFO including (hbmpItem) field ?
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win10 probably supports any combination of small/big (cbSize) and old/new MIIM_TYPE/MIIM_STRING.
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*/
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#if defined(UNDER_CE) || defined(_WIN64) || (WINVER < 0x0500)
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#ifndef _UNICODE
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#define my_compatib_MENUITEMINFOA_size sizeof(MENUITEMINFOA)
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#endif
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#define my_compatib_MENUITEMINFOW_size sizeof(MENUITEMINFOW)
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#else
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#define MY_STRUCT_SIZE_BEFORE(structname, member) ((UINT)(UINT_PTR)((LPBYTE)(&((structname*)0)->member) - (LPBYTE)(structname*)0))
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#ifndef _UNICODE
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#define my_compatib_MENUITEMINFOA_size MY_STRUCT_SIZE_BEFORE(MENUITEMINFOA, hbmpItem)
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#endif
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#define my_compatib_MENUITEMINFOW_size MY_STRUCT_SIZE_BEFORE(MENUITEMINFOW, hbmpItem)
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#if defined(__clang__) && __clang_major__ >= 13
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// error : performing pointer subtraction with a null pointer may have undefined behavior
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#pragma GCC diagnostic ignored "-Wnull-pointer-subtraction"
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#endif
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#endif
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#define COPY_MENUITEM_field(d, s, name) \
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d.name = s.name;
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#define COPY_MENUITEM_fields(d, s) \
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COPY_MENUITEM_field(d, s, fMask) \
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COPY_MENUITEM_field(d, s, fType) \
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COPY_MENUITEM_field(d, s, fState) \
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COPY_MENUITEM_field(d, s, wID) \
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COPY_MENUITEM_field(d, s, hSubMenu) \
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COPY_MENUITEM_field(d, s, hbmpChecked) \
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COPY_MENUITEM_field(d, s, hbmpUnchecked) \
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COPY_MENUITEM_field(d, s, dwItemData) \
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static void ConvertItemToSysForm(const CMenuItem &item, MENUITEMINFOW &si)
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{
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ZeroMemory(&si, sizeof(si));
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si.cbSize = my_compatib_MENUITEMINFOW_size; // sizeof(si);
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COPY_MENUITEM_fields(si, item)
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}
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#ifndef _UNICODE
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static void ConvertItemToSysForm(const CMenuItem &item, MENUITEMINFOA &si)
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{
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ZeroMemory(&si, sizeof(si));
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si.cbSize = my_compatib_MENUITEMINFOA_size; // sizeof(si);
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COPY_MENUITEM_fields(si, item)
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}
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#endif
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static void ConvertItemToMyForm(const MENUITEMINFOW &si, CMenuItem &item)
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{
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COPY_MENUITEM_fields(item, si)
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}
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#ifndef _UNICODE
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static void ConvertItemToMyForm(const MENUITEMINFOA &si, CMenuItem &item)
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{
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COPY_MENUITEM_fields(item, si)
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}
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#endif
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bool CMenu::GetItem(UINT itemIndex, bool byPosition, CMenuItem &item) const
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{
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item.StringValue.Empty();
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const unsigned kMaxSize = 512;
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#ifndef _UNICODE
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if (!g_IsNT)
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{
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MENUITEMINFOA si;
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ConvertItemToSysForm(item, si);
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const bool isString = item.IsString();
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unsigned bufSize = kMaxSize;
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AString a;
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if (isString)
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{
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si.cch = bufSize;
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si.dwTypeData = a.GetBuf(bufSize);
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}
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bool res = GetItemInfo(itemIndex, byPosition, &si);
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if (isString)
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a.ReleaseBuf_CalcLen(bufSize);
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if (!res)
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return false;
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{
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if (isString && si.cch >= bufSize - 1)
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{
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si.dwTypeData = NULL;
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res = GetItemInfo(itemIndex, byPosition, &si);
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if (!res)
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return false;
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si.cch++;
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bufSize = si.cch;
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si.dwTypeData = a.GetBuf(bufSize);
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res = GetItemInfo(itemIndex, byPosition, &si);
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a.ReleaseBuf_CalcLen(bufSize);
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if (!res)
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return false;
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}
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ConvertItemToMyForm(si, item);
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if (isString)
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item.StringValue = GetUnicodeString(a);
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return true;
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}
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}
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else
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#endif
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{
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wchar_t s[kMaxSize + 1];
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s[0] = 0;
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MENUITEMINFOW si;
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ConvertItemToSysForm(item, si);
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const bool isString = item.IsString();
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unsigned bufSize = kMaxSize;
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if (isString)
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{
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si.cch = bufSize;
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si.dwTypeData = s;
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}
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bool res = GetItemInfo(itemIndex, byPosition, &si);
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if (!res)
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return false;
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if (isString)
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{
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s[Z7_ARRAY_SIZE(s) - 1] = 0;
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item.StringValue = s;
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if (si.cch >= bufSize - 1)
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{
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si.dwTypeData = NULL;
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res = GetItemInfo(itemIndex, byPosition, &si);
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if (!res)
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return false;
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si.cch++;
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bufSize = si.cch;
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si.dwTypeData = item.StringValue.GetBuf(bufSize);
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res = GetItemInfo(itemIndex, byPosition, &si);
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item.StringValue.ReleaseBuf_CalcLen(bufSize);
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if (!res)
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return false;
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}
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// if (item.StringValue.Len() != si.cch) throw 123; // for debug
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}
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ConvertItemToMyForm(si, item);
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return true;
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}
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}
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bool CMenu::SetItem(UINT itemIndex, bool byPosition, const CMenuItem &item)
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{
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#ifndef _UNICODE
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if (!g_IsNT)
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{
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MENUITEMINFOA si;
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ConvertItemToSysForm(item, si);
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AString s;
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if (item.IsString())
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{
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s = GetSystemString(item.StringValue);
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si.dwTypeData = s.Ptr_non_const();
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}
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return SetItemInfo(itemIndex, byPosition, &si);
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}
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else
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#endif
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{
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MENUITEMINFOW si;
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ConvertItemToSysForm(item, si);
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if (item.IsString())
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si.dwTypeData = item.StringValue.Ptr_non_const();
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return SetItemInfo(itemIndex, byPosition, &si);
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}
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}
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bool CMenu::InsertItem(UINT itemIndex, bool byPosition, const CMenuItem &item)
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{
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#ifndef _UNICODE
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if (!g_IsNT)
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{
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MENUITEMINFOA si;
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ConvertItemToSysForm(item, si);
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AString s;
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if (item.IsString())
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{
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s = GetSystemString(item.StringValue);
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si.dwTypeData = s.Ptr_non_const();
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}
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return InsertItem(itemIndex, byPosition, &si);
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}
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else
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#endif
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{
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MENUITEMINFOW si;
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ConvertItemToSysForm(item, si);
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if (item.IsString())
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si.dwTypeData = item.StringValue.Ptr_non_const();
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#ifdef UNDER_CE
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UINT flags = (item.fType & MFT_SEPARATOR) ? MF_SEPARATOR : MF_STRING;
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UINT_PTR id = item.wID;
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if ((item.fMask & MIIM_SUBMENU) != 0)
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{
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flags |= MF_POPUP;
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id = (UINT_PTR)item.hSubMenu;
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}
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if (!Insert(itemIndex, flags | (byPosition ? MF_BYPOSITION : MF_BYCOMMAND), id, item.StringValue))
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return false;
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return SetItemInfo(itemIndex, byPosition, &si);
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#else
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return InsertItem(itemIndex, byPosition, &si);
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#endif
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}
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}
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#ifndef _UNICODE
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bool CMenu::AppendItem(UINT flags, UINT_PTR newItemID, LPCWSTR newItem)
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{
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if (g_IsNT)
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return BOOLToBool(::AppendMenuW(_menu, flags, newItemID, newItem));
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else
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return AppendItem(flags, newItemID, GetSystemString(newItem));
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}
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#endif
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}
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