Added C header samples from https://github.com/MiJyn/nightmare/ to fix the misclassifications as C++ that were occuring

samples/C/NWMan.h

@@ -0,0 +1,99 @@
+#ifndef _NME_WMAN_H
+#define _NME_WMAN_H
+
+// Internal window manager API
+
+#include "NCompat.h"
+
+START_HEAD
+
+#include "NPos.h"
+#include "NUtil.h"
+#include "NTypes.h"
+
+NTS(NWMan_event);
+
+NSTRUCT(NWMan, {
+    // Init stuff
+    bool (*init)();
+    bool (*destroy)();
+
+    // Window stuff
+    bool (*create_window)();
+    bool (*destroy_window)();
+
+    void (*swap_buffers)();
+
+    // Event stuff
+    bool (*next_event)(NWMan_event* event);
+
+    // Time stuff
+    uint (*get_millis)();
+    void (*sleep)(uint millis);
+
+    // Info
+    int rshift_key;
+    int lshift_key;
+    int left_key;
+    int right_key;
+});
+
+NENUM(NWMan_event_type, {
+    N_WMAN_MOUSE_MOVE = 0,
+    N_WMAN_MOUSE_BUTTON = 1,
+    N_WMAN_MOUSE_WHEEL = 2,
+
+    N_WMAN_KEYBOARD = 10,
+
+    N_WMAN_QUIT = 20,
+    N_WMAN_RESIZE = 21,
+    N_WMAN_FOCUS = 22
+});
+
+#define N_WMAN_MOUSE_LEFT 0
+#define N_WMAN_MOUSE_RIGHT 1
+#define N_WMAN_MOUSE_MIDDLE 2
+
+NSTRUCT(NWMan_event, {
+    NWMan_event_type type;
+
+    union {
+        // Mouse
+
+        NPos2i mouse_pos;
+
+        struct {
+            short id;
+            bool state;
+        } mouse_button;
+
+        signed char mouse_wheel; // 1 if up, -1 if down
+
+        // Keyboard
+
+        struct {
+            int key;
+            bool state;
+        } keyboard;
+
+        // Window
+
+        bool window_quit; // Will always be true if WM_QUIT
+
+        NPos2i window_size;
+
+        bool window_focus;
+    };
+});
+
+NWMan_event NWMan_event_new(NWMan_event_type type);
+
+
+bool NWMan_init();
+bool NWMan_destroy();
+
+extern NWMan N_WMan;
+
+END_HEAD
+
+#endif