terminal/src/propsheet/util.cpp

94 lines
2.7 KiB
C++

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
#include "precomp.h"
#include "shlwapi.h"
// Version detection code for ComCtl32 copied/adapter from
// https://msdn.microsoft.com/en-us/library/windows/desktop/hh298349(v=vs.85).aspx#DllGetVersion
#define PACKVERSION(major, minor) MAKELONG(minor, major)
static DWORD GetVersion(_In_ PCWSTR pwszDllName)
{
DWORD dwVersion = 0;
// We have to call for ComCtl32.dll without a path name so Fusion SxS will redirect us
// if it thinks we are manifested properly and Fusion is enabled in this process space.
HINSTANCE const hinstDll = LoadLibrary(pwszDllName);
if (nullptr != hinstDll)
{
DLLGETVERSIONPROC const pDllGetVersion = (DLLGETVERSIONPROC)GetProcAddress(hinstDll, "DllGetVersion");
// Because some DLLs might not implement this function, you must test for
// it explicitly. Depending on the particular DLL, the lack of a DllGetVersion
// function can be a useful indicator of the version.
if (nullptr != pDllGetVersion)
{
DLLVERSIONINFO dvi = { 0 };
dvi.cbSize = sizeof(dvi);
if (SUCCEEDED((*pDllGetVersion)(&dvi)))
{
dwVersion = PACKVERSION(dvi.dwMajorVersion, dvi.dwMinorVersion);
}
}
FreeLibrary(hinstDll);
}
return dwVersion;
}
static bool IsComCtlV6Present()
{
PCWSTR pwszDllName = L"ComCtl32.dll";
DWORD const dwVer = GetVersion(pwszDllName);
DWORD const dwTarget = PACKVERSION(6, 0);
if (dwVer >= dwTarget)
{
// This version of ComCtl32.dll is version 6.0 or later.
return true;
}
else
{
// Proceed knowing that version 6.0 or later additions are not available.
// Use an alternate approach for older the DLL version.
return false;
}
}
BOOL InitializeConsoleState()
{
RegisterClasses(ghInstance);
OEMCP = GetOEMCP();
g_fIsComCtlV6Present = IsComCtlV6Present();
return NT_SUCCESS(InitializeDbcsMisc());
}
void UninitializeConsoleState()
{
if (g_fHostedInFileProperties && gpStateInfo->LinkTitle != nullptr)
{
// If we're in the file props dialog and have an allocated title, we need to free it. Outside of the file props
// dlg, the caller of ConsolePropertySheet() owns the lifetime.
CoTaskMemFree(gpStateInfo->LinkTitle);
gpStateInfo->LinkTitle = nullptr;
}
LOG_IF_NTSTATUS_FAILED(DestroyDbcsMisc());
UnregisterClasses(ghInstance);
}
void UpdateApplyButton(const HWND hDlg)
{
if (g_fHostedInFileProperties)
{
PropSheet_Changed(GetParent(hDlg), hDlg);
}
}