Added 'zooming', maybe not a great way to do it but it'll do for now.

.gitignore

@@ -0,0 +1,2 @@
+bin/
+obj/

includes/list.h

@@ -1,6 +1,11 @@
 #ifndef LIST_H
 #define LIST_H
 
+#include <SDL2/SDL_rect.h>
+#include <SDL2/SDL_render.h>
+#include <SDL2/SDL_ttf.h>
+#include <SDL2/SDL.h>
+
 typedef struct {
     unsigned int Capcity;
     unsigned int Size;

list.c

@@ -1,7 +0,0 @@
-#include "list.h"
-
-#define DEFAULTLISTSIZE 64
-
-List* CreateList(void) {
-
-}

src/list.c

@@ -0,0 +1,16 @@
+#include "../includes/list.h"
+#include <stdlib.h>
+
+#define DEFAULTLISTSIZE 64
+
+List* CreateList(void) {
+    List* list = calloc(1, sizeof(List));
+
+    list->Strings = calloc(DEFAULTLISTSIZE, sizeof(char*));
+
+    list->Capcity = DEFAULTLISTSIZE;
+    list->Size = 0;
+
+    return list;
+}
+

src/main.c

@@ -21,6 +21,7 @@
 const int SCREEN_WIDTH = 1280;
 const int SCREEN_HEIGHT = 720;
 int MouseDown = 0;
+float ZoomLevel = 1;
 
 typedef struct {
     SDL_Window *window;
@@ -87,14 +88,14 @@ int main(int argc, char** argv){
 
     //SDL_SetRelativeMouseMode(SDL_TRUE);
 
-    SDL_Rect rect;
+    SDL_FRect rect;
 
     rect.x = SCREEN_WIDTH / SCREEN_HEIGHT;
     rect.y = SCREEN_WIDTH / SCREEN_HEIGHT;
     rect.w = SCREEN_WIDTH / 2;
     rect.h = SCREEN_HEIGHT / 2;
 
-    SDL_Rect rect2;
+    SDL_FRect rect2;
 
     rect2.x = 250;// / SCREEN_HEIGHT;
     rect2.y = 250;// / SCREEN_HEIGHT;
@@ -124,11 +125,11 @@ int main(int argc, char** argv){
         // }
         SDL_SetRenderDrawColor(app.renderer, 0, 0, 0, 0);
 
-        SDL_RenderFillRect(app.renderer, &(SDL_Rect){rect.x + XRel, rect.y + YRel, rect.w, rect.h});
+        SDL_RenderFillRectF(app.renderer, &(SDL_FRect){rect.x + XRel, rect.y + YRel, rect.w * ZoomLevel, rect.h * ZoomLevel});
 
         SDL_SetRenderDrawColor(app.renderer, 128, 0, 0, 0);
 
-        SDL_RenderFillRect(app.renderer, &(SDL_Rect){rect2.x + XRel, rect2.y + YRel, rect2.w, rect2.h});
+        SDL_RenderFillRectF(app.renderer, &(SDL_FRect){rect2.x + XRel, rect2.y + YRel, rect2.w * ZoomLevel, rect2.h * ZoomLevel});
 
         SDL_RenderPresent(app.renderer);
 
@@ -159,6 +160,11 @@ void HandleInput(void) {
                     XRel += event.motion.xrel;
                     YRel += event.motion.yrel;
                 }
+                break;
+            case SDL_MOUSEWHEEL:
+                if (event.wheel.y > 0 && ZoomLevel < 2) ZoomLevel += .05;
+                else if (event.wheel.y < 0 && ZoomLevel > 0.25) ZoomLevel -= .05;
+                break;
             case SDL_TEXTINPUT:
             case SDL_KEYDOWN:
             default: