use@fhome:~/imgui_project$ more cimgtest.zig
const ig = @cImport({
    //    @cInclude("cimgui/cimgui.h");
    @cInclude("cimgui/imgui/examples/imgui_impl_sdl.h");
});

pub fn main() void {
    _ = ig.igCreateContext(null);
    const io: *ig.ImGuiIO = ig.igGetIO();

    var text_pixels: [*c]u8 = null;
    var text_w: c_int = 0;
    var text_h: c_int = 0;
    ig.ImFontAtlas_GetTexDataAsRGBA32(io.Fonts, &text_pixels, &text_w, &text_h, null);

    while (true) {
        var display_size: ig.ImVec2 = .{
            .x = 800,
            .y = 600,
        };

        io.DisplaySize = display_size;
        var f: f32 = 0.0;
        ig.igNewFrame();

        const hello = "Hello World!\x00";
        _ = ig.igSliderFloat("float", &f, 0.0, 1.0, "%.3f", 1.0);
        ig.igText(hello);
        ig.igRender();
    }

    ig.igDestroyContext(null);
}