winrt::check_bool function template (C++/WinRT)
A helper function that checks whether a value is false and, if so, calls the winrt::throw_last_error function to retrieve the calling thread's last-error code value, and throw an exception using a C++/WinRT object that represents that error code. Also see winrt::hresult_error.
Syntax
template<typename T>
void check_bool(T result);
Template parameters
typename T
A type that's convertible to bool.
Parameters
result
A value that's convertible to false (an error condition), or true (a success condition). An exception is thrown only if result is false.
Requirements
Minimum supported SDK: Windows SDK version 10.0.17134.0 (Windows 10, version 1803)
Namespace: winrt
Header: %WindowsSdkDir%Include<WindowsTargetPlatformVersion>\cppwinrt\winrt\base.h (included by default)