// Oprogramowanie Roman Ryltsov
Figured out how to elegantly do a blocking wait for an asynchronous coroutine-enabled function on a STA thread. You can’t do this: There is an assertion failure because .get() assumes ability to block. On STA this hits a failure in winrt::impl::blocking_suspend call. So you have to avoid doing .get() to synchronize and there should be…
If I run this, what the output would be? Here we go: What appears to be wrong is Unicode Left-to-Right mark character, which is killing the console and it stops accepting any further text! Now if you’re going to do this: Then you get what you want, and not the trailing EOL is in its…
Interface methods lack pure specifiers. This might be OK for some development but once you try to inherit your handler class from public winrt::implements<AsyncCallback, IRtwqAsyncCallback> you are in trouble! 1>Foo.obj : error LNK2001: unresolved external symbol “public: virtual long __cdecl IRtwqAsyncCallback::GetParameters(unsigned long *,unsigned long *)” (?GetParameters@IRtwqAsyncCallback@@UEAAJPEAK0@Z) 1>Foo.obj : error LNK2001: unresolved external symbol “public: virtual…
In: Out: 1>—— Build started: Project: CppWinrt01, Configuration: Debug x64 ——1>CppWinrt01.cpp1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(983,26): error C2039: ‘wait_for’: is not a member of ‘winrt::impl’1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(103): message : see declaration of ‘winrt::impl’1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(985): message : see reference to class template instantiation ‘winrt::impl::consume_Windows_Foundation_IAsyncAction’ being compiled1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(1004,26): error C2039: ‘wait_for’: is not a…
There seem to be a limit of 1GB for FileIO::ReadLinesAsync API even though documentation is silent on this. The exception message itself adds no clarity: WinRT originate error – 0x80070057 : ‘The parameter is incorrect.’. The function starts working well when the input file is slightly reduced in size (under 1050 MB).
SetFileTime is simple and does not deserve a blog post: you have a file handle, you have date/time, you set it. C++/WinRT and UWP make the journey much more exciting. There is StorageItemContentProperties Class which provides access to the content-related properties of an item (like a file or folder). This includes file times which are…
From the documentation on StorageFolder.TryGetItemAsync(String) Method: Tries to get the file or folder with the specified name from the current folder. Returns null instead of raising a FileNotFoundException if the specified file or folder is not found. Exception thrown at 0x00007FFB06BDA799 (KernelBase.dll) in DownloadIssue.exe: WinRT originate error – 0x80070002 : ‘An item cannot be found with the specified name…