ImGUI image load helpers

[KingRikkie]

I am struggling to find any example on how to load an image from file with Silk.NET. Using Veldrid this is as simple as:

var img = new ImageSharpTexture("image.png");
var dimg = img.CreateDeviceTexture(_gd, _gd.ResourceFactory);
ImgPtr = _controller.GetOrCreateImGuiBinding(_gd.ResourceFactory, dimg); // this returns the ptr to pass to ImGUI.Image()
[. . .]
ImGUI.Image(ImgPtr, new Vector2(300, 300));

[Perksey]

I don't think our OOTB ImGui controller supports this. We'd welcome contributions in adding something similar to GetOrCreateImGuiBinding for our controller. Hope this helps.

[KingRikkie]

Oh that is very unfortunate, I will have to switch libraries then as I lack the deeper knowledge of implementing such a controller myself.

[KingRikkie]

Ok so I figured it out myself, modify Texture.cs and make the private _handle visible from outside. Then in OnLoad:

imgTex = new Texture("myTex.png");
imgTex.Bind(TextureUnit.Texture0);

And finally in OnRender:

ImGuiNET.ImGui.Image(new IntPtr(imgTex._handle), new Vector2(300, 300));

Don't really understand why ppl recommended a full custom controller instead.