'宣言 Public Function GenerateAsyncEx() As IAsyncActionWithProgress(Of Double)
'使用法 Dim instance As C1DocumentSource Dim value As IAsyncActionWithProgress(Of Double) value = instance.GenerateAsyncEx()
public IAsyncActionWithProgress<double> GenerateAsyncEx()
戻り値の型
The IAsyncActionWithProgress<TProgress> interface that can be used to manage asynchronous operation.