Creates a new GdkVulkanContext for rendering on @surface.
If the creation of the GdkVulkanContext failed, @error will be set.
the newly created GdkVulkanContext, or %NULL on error
GException on failure.
See Implementation
Creates a new GdkVulkanContext for rendering on @surface.
If the creation of the GdkVulkanContext failed, @error will be set.