59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
#include "get_last_error.hpp"
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#ifdef _MSC_VER
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#include <type_traits>
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#include <QtDebug>
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#include <QtGlobal>
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#include <tchar.h>
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#include <windows.h>
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#include "log_tr.hpp"
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namespace detail {
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template<typename...>
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struct always_false : std::false_type {
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};
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template<typename... Ts>
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inline constexpr auto always_false_v = always_false<Ts...>::value;
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template<typename T>
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static QString fromTchar(T* tString)
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{
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if constexpr(std::is_same_v<T, char>) {
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return QString().fromLocal8Bit(tString).trimmed();
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}
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else if constexpr(std::is_same_v<T, wchar_t>) {
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return QString().fromWCharArray(tString).trimmed();
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}
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else {
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static_assert(always_false_v<T>, "Unknown TCHAR type");
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}
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}
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} // namespace detail
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QString getLastErrorString()
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{
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DWORD lastErrorId = GetLastError();
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TCHAR* msgBuf = nullptr;
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const auto formatFlags = FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
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if(FormatMessage(formatFlags, nullptr, lastErrorId, 0, reinterpret_cast<LPTSTR>(&msgBuf), 0, nullptr) == 0) {
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return log_tr("FormatMessage failed with error code '%1' while formatting error message for code: %2").arg(GetLastError()).arg(lastErrorId);
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}
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const auto lastErrorString = detail::fromTchar(msgBuf);
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LocalFree(msgBuf);
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return lastErrorString;
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}
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#endif
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