On 4/01/2015 5:34 p.m., WhatMeWorry wrote:
I've been translating C++, OpenGL, and GLUT code into D, Derelict
OpenGL, and Derelict GLFW using:
import derelict.opengl3.gl3;
import derelict.glfw3.glfw3;
auto window = glfwCreateWindow(800, 600, "Shaders", null, null);
etc.
Things have been going well. I then tried to implement window resizing
with a callback function and the glfwSetWindowSizeCallback() statement.
void windowResizeCallback(GLFWwindow* window, int width, int height)
{
glViewport(0, 0, width, height);
}
and
glfwSetWindowSizeCallback(window, &windowResizeCallback);
however, I kept getting the following compiler error:
Error 1 Error: function pointer glfwSetWindowSizeCallback
(GLFWwindow*, extern (C) void function(GLFWwindow*, int, int) nothrow)
is not callable using argument types (GLFWwindow*, void
function(GLFWwindow* window, int width, int height))
Well, I was able to get it to compile and work by adding the following
"decoration"
extern (C) nothrow
{
void windowResizeCallback(GLFWwindow* window, int width, int height)
{
glViewport(0, 0, width, height);
}
}
Now it resizes the screen successfully, but I feel like I've failed by
using extern (C) nothrow. Shouldn't Derelict GLFW be providing a D
interface?
Maybe GLFW callback functions can't handled through Derelict GLFW?
No this is correct code.
Derelict projects are just bindings. Which means the c equivalent in D.
Nothing more nothing less.
