Re: How to get rid of "nothrow" ?

[Vinod K Chandran via Digitalmars-d-learn]

On Sunday, 17 May 2020 at 09:50:00 UTC, Olivier Pisano wrote:

On Sunday, 17 May 2020 at 09:27:40 UTC, Vinod K Chandran wrote:

Hi all,

I am trying to create a win32 based gui in dlang. So far so good. I can create and display my window on screen. But for handling messages, i planned to write something like message crackers in c++. But since, my WndProc function is a "nothrow" function, i cannot use any function without "nothorw" in that WndProc. How to solve this problem ?

Hi,

You need to catch any exceptions inside of your WndProc so they don't propagate:

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) nothrow

{
    try
    {
        // your code logic here may call throwing functions
    }
    catch (Exception e)
    {
        // You should log exceptions here
    }
}

Hi, Thanks a lot. Let me try.