Examples: Renamed glfw error callback so it's more clear what it is.

examples/opengl2_example/main.cpp

@@ -12,15 +12,15 @@
 #include <stdio.h>
 #include <GLFW/glfw3.h>
 
-static void error_callback(int error, const char* description)
+static void glfw_error_callback(int error, const char* description)
 {
-    fprintf(stderr, "Error %d: %s\n", error, description);
+    fprintf(stderr, "Glfw Error %d: %s\n", error, description);
 }
 
 int main(int, char**)
 {
     // Setup window
-    glfwSetErrorCallback(error_callback);
+    glfwSetErrorCallback(glfw_error_callback);
     if (!glfwInit())
         return 1;
     GLFWwindow* window = glfwCreateWindow(1280, 720, "ImGui OpenGL2 example", NULL, NULL);

examples/opengl3_example/main.cpp

@@ -10,15 +10,15 @@
 #include <GL/gl3w.h>    // This example is using gl3w to access OpenGL functions (because it is small). You may use glew/glad/glLoadGen/etc. whatever already works for you.
 #include <GLFW/glfw3.h>
 
-static void error_callback(int error, const char* description)
+static void glfw_error_callback(int error, const char* description)
 {
-    fprintf(stderr, "Error %d: %s\n", error, description);
+    fprintf(stderr, "Glfw Error %d: %s\n", error, description);
 }
 
 int main(int, char**)
 {
     // Setup window
-    glfwSetErrorCallback(error_callback);
+    glfwSetErrorCallback(glfw_error_callback);
     if (!glfwInit())
         return 1;
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);

examples/vulkan_example/main.cpp

@@ -530,15 +530,15 @@ static void frame_present()
     g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
 }
 
-static void error_callback(int error, const char* description)
+static void glfw_error_callback(int error, const char* description)
 {
-    fprintf(stderr, "Error %d: %s\n", error, description);
+    fprintf(stderr, "Glfw Error %d: %s\n", error, description);
 }
 
 int main(int, char**)
 {
     // Setup window
-    glfwSetErrorCallback(error_callback);
+    glfwSetErrorCallback(glfw_error_callback);
     if (!glfwInit())
         return 1;