我编写了以下代码行来打开 InstalledFolder 目录下的文件:
Platform::String^ locationPath = Platform::String::Concat(Package::Current->InstalledLocation->Path, "\\Assets\\Logo.png");
CREATEFILE2_EXTENDED_PARAMETERS extendedParams = {0};
extendedParams.dwSize = sizeof(CREATEFILE2_EXTENDED_PARAMETERS);
extendedParams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
extendedParams.dwFileFlags = FILE_FLAG_SEQUENTIAL_SCAN;
extendedParams.dwSecurityQosFlags = SECURITY_ANONYMOUS;
extendedParams.lpSecurityAttributes = nullptr;
extendedParams.hTemplateFile = nullptr;
Wrappers::FileHandle file(
CreateFile2(
locationPath->Data(),
GENERIC_READ,
0,
OPEN_EXISTING,
&extendedParams
)
);
DWORD e = GetLastError();
if (file.Get() == INVALID_HANDLE_VALUE)
{
throw ref new Platform::FailureException();
}
CreateFile2 返回拒绝访问错误。谁能帮帮我?
正如 JP Alioto 所建议的那样,我尝试使用 WinRT File I/O,如下所示
create_task(StorageFile::GetFileFromApplicationUriAsync(ref new Windows::Foundation::Uri("ms-appx:///Assets/Logo.png")))
.then([=](StorageFile^ f)
{
auto p = create_task(f->OpenAsync(FileAccessMode::Read));
p.wait();
});
我仍然在 p.wait() 处收到以下错误:
将无效参数传递给认为无效参数致命的函数
谢谢,