mirror of
https://github.com/microsoft/PowerToys.git
synced 2026-04-05 02:36:19 +02:00
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
#define WIN32_LEAN_AND_MEAN
|
||
|
|
#include <Windows.h>
|
||
|
|
|
||
|
|
#include <optional>
|
||
|
|
#include <string>
|
||
|
|
#include <system_error>
|
||
|
|
#include <strsafe.h>
|
||
|
|
|
||
|
|
inline std::optional<std::wstring> get_last_error_message(const DWORD dw)
|
||
|
|
{
|
||
|
|
std::optional<std::wstring> message;
|
||
|
|
try
|
||
|
|
{
|
||
|
|
const auto msg = std::system_category().message(dw);
|
||
|
|
message.emplace(begin(msg), end(msg));
|
||
|
|
}
|
||
|
|
catch (...)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
return message;
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void show_last_error_message(const wchar_t* functionName, DWORD dw, const wchar_t* errorTitle)
|
||
|
|
{
|
||
|
|
const auto system_message = get_last_error_message(dw);
|
||
|
|
if (!system_message.has_value())
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
LPWSTR lpDisplayBuf = (LPWSTR)LocalAlloc(LMEM_ZEROINIT, (system_message->size() + lstrlenW(functionName) + 40) * sizeof(WCHAR));
|
||
|
|
if (lpDisplayBuf != NULL)
|
||
|
|
{
|
||
|
|
StringCchPrintfW(lpDisplayBuf,
|
||
|
|
LocalSize(lpDisplayBuf) / sizeof(WCHAR),
|
||
|
|
L"%s: %s (%d)",
|
||
|
|
functionName,
|
||
|
|
system_message->c_str(),
|
||
|
|
dw);
|
||
|
|
MessageBoxW(NULL, (LPCTSTR)lpDisplayBuf, errorTitle, MB_OK | MB_ICONERROR);
|
||
|
|
LocalFree(lpDisplayBuf);
|
||
|
|
}
|
||
|
|
}
|