I plan to make a mixed application, means, the user can start them to open a black console window or to open it with a WPF-GUI. The user can select with a start option like -console or -window.
Thus I created a WPF-application and set the options in the .csproj to:
<PropertyGroup> <TargetFramework>net5.0-windows</TargetFramework> <UserSecretsId>dotnet-WorkerService2-xxx...</UserSecretsId> <UseWPF>true</UseWPF> <OutputType>Exe</OutputType> <DisableWinExeOutputInference>True</DisableWinExeOutputInference> </PropertyGroup>
Dependion on the start option, I create a new thread with a WPF-application, that opens the WPF-GUI.
When I use the GUI, I hide the opening console window with:
using System.Runtime.InteropServices; [DllImport("kernel32.dll")] static extern IntPtr GetConsoleWindow(); [DllImport("user32.dll")] static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
When I use the console, I do not hide them and do not create the WPF-application inside.
So then I can also see, that logs are put into the console as well as I can write text into the console window.
So it works fine.
But the problem is, when I start the application as a WPF-GUI, the console window pops up shortly and then disappears, as soon as the code has been executed to hide them, after the application has been started.
This is a little bit ugly !
Thus, I tried to change the application to run them as a windows application. Starting it, no console is created or opened. So I create them inside the application with the following code, when I need it:
using System.Runtime.InteropServices; [DllImport("kernel32.dll", SetLastError = true)] internal static extern int AllocConsole();
and then free them at the end:
[DllImport("kernel32.dll", SetLastError = true)] internal static extern int FreeConsole();
And if the application is started within a console, I tried to get these console using:
using System.Runtime.InteropServices; [DllImport("kernel32.dll")] static extern IntPtr GetConsoleWindow();
But the problem is, neither the log nor messages, that I want to write to the console, are shown in the console. Although I create one or get the one, that is opened from where I started the program, I cannot us them.
So I tried two ways to reach my goal, but none of them works satisfactory.
Do you have an idea, how I can solve this problem in one of the following ways:
Run the application as a console application, but prevent, that the console pops up shortly after starting, if I don't use them. Maybe a console application can be started with a hidden console window, so that I can use the upper commands in kernel32.dll, the show them when I need. Thus logs and messages would be shown in the console.
Run the application as a windows application. But how can I reach the already existing console, where I did start the program or allocate a new one, if the application was started within explorer, so that logs and messages are written to them.