Load icon from file?

[GirkovArpa]

let name: u16 = // ?
let h_icon = HINSTANCE::NULL.LoadImageIcon(name, 16, 16, LR::LOADFROMFILE);

Why is name a u16? Shouldn't a filename string be accepted?

I would like to change the window icon at runtime from a file that isn't included in the resources.

[rodrigocfd]

Actually it was more complicated than that... we also must consider the 3 OEM resource flags: OBM, OIC and OCR. This demanded 3 new specific enums to deal with the 3 possibilities: ID, string or OEM resource. Which gives us 9 different possibilities.

I made a quick test and it seems to be correct and working now.

let hicon = HINSTANCE::NULL.LoadImageIcon(
    IdOicStr::from_str("C:\\Temp\\foo.ico"),
    SIZE::new(16, 16),
    co::LR::LOADFROMFILE,
)?;

hicon.DestroyIcon()?; // don't forget this one!

Let me know if this works for you.

[GirkovArpa]

Works perfectly!

let h_icon = HINSTANCE::NULL
    .LoadImageIcon(
        IdOicStr::Str(WString::from_str(
            "C:\\Temp\\foo.ico",
        )),
        SIZE::new(16, 16),
        LR::LOADFROMFILE,
    )
    .unwrap();

let window = gui::WindowMain::new(gui::WindowMainOpts {
    class_icon: gui::Icon::Handle(h_icon),
    ..Default::default()
});

[rodrigocfd]

Quick tip: IdOicStr enum has a from_str() constructor, so you don't need to construct the WString explicitly:

IdOicStr::from_str("C:\\Temp\\foo.ico")