This is an application_surface wrapper extension for Game Maker 8.2.

It automatically manages a surface, providing a post-draw callback entrypoint for composing the screen with it.

Requires Core version 1.3.2 or newer.

This extension will be merged with the GM 8.2 DirectX8 Extension soon. This repo will continue existing, but won't receive further updates.

1. Install Core and AppSurf, and add both to your project.
2. Create a script that will be used as a screen composing callback.
3. At game start, surface_init(...) with your callback script's id.
4. Write screen composition code in the script. application_surface contains the surface handle, and the projection is set to the size of the surface.
5. If need be, you can resize the application_surface.
6. When using other surfaces during the draw event, make sure to utilize surface_disengage() instead of surface_reset_target() to properly reset the draw stack. Using surfaces during other events is fine.