Fix context API checks in native access functions

src/egl_context.c

@@ -821,7 +821,7 @@ GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* handle)
     _GLFWwindow* window = (_GLFWwindow*) handle;
     _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_CONTEXT);
 
-    if (window->context.client != GLFW_EGL_CONTEXT_API)
+    if (window->context.source != GLFW_EGL_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return EGL_NO_CONTEXT;
@@ -835,7 +835,7 @@ GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* handle)
     _GLFWwindow* window = (_GLFWwindow*) handle;
     _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_SURFACE);
 
-    if (window->context.client != GLFW_EGL_CONTEXT_API)
+    if (window->context.source != GLFW_EGL_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return EGL_NO_SURFACE;

src/glx_context.c

@@ -680,7 +680,7 @@ GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* handle)
         return NULL;
     }
 
-    if (window->context.client != GLFW_NATIVE_CONTEXT_API)
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return NULL;
@@ -700,7 +700,7 @@ GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* handle)
         return None;
     }
 
-    if (window->context.client != GLFW_NATIVE_CONTEXT_API)
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return None;

src/nsgl_context.m

@@ -365,7 +365,7 @@ GLFWAPI id glfwGetNSGLContext(GLFWwindow* handle)
         return nil;
     }
 
-    if (window->context.client != GLFW_NATIVE_CONTEXT_API)
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return nil;

src/osmesa_context.c

@@ -302,7 +302,7 @@ GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* handle, int* width,
 
     _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
 
-    if (window->context.client != GLFW_OSMESA_CONTEXT_API)
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return GLFW_FALSE;
@@ -341,7 +341,7 @@ GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* handle,
 
     _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
 
-    if (window->context.client != GLFW_OSMESA_CONTEXT_API)
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return GLFW_FALSE;
@@ -373,7 +373,7 @@ GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* handle)
     _GLFWwindow* window = (_GLFWwindow*) handle;
     _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
 
-    if (window->context.client != GLFW_OSMESA_CONTEXT_API)
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return NULL;

src/wgl_context.c

@@ -783,7 +783,7 @@ GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* handle)
         return NULL;
     }
 
-    if (window->context.client != GLFW_NATIVE_CONTEXT_API)
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return NULL;