Customizing window decorations

1#include <SDL.h>
2#include <iostream>
3
4void RenderCustomDecorations(
5  SDL_Renderer* Renderer,
6  int Width,
7  int Height
8) {
9  // Draw a custom title bar
10  SDL_Rect TitleBar{0, 0, Width, 30};
11
12  SDL_SetRenderDrawColor(Renderer,
13    50, 50, 50, 255); // Dark gray
14  SDL_RenderFillRect(Renderer, &TitleBar);
15
16  // Draw a close button
17  SDL_Rect CloseButton{Width - 30, 0, 30, 30};
18
19  SDL_SetRenderDrawColor(Renderer,
20    200, 50, 50, 255); // Red
21  SDL_RenderFillRect(Renderer, &CloseButton);
22}
23
24int main() {
25  SDL_Init(SDL_INIT_VIDEO);
26
27  SDL_Window* Window{
28    SDL_CreateWindow(
29      "Custom Decorations",
30      SDL_WINDOWPOS_CENTERED,
31      SDL_WINDOWPOS_CENTERED,
32      800, 600,
33      SDL_WINDOW_BORDERLESS 
34    )};
35  SDL_Renderer* Renderer{
36    SDL_CreateRenderer(
37      Window, -1, SDL_RENDERER_ACCELERATED)};
38
39  bool Running{true};
40  SDL_Event Event;
41  while (Running) {
42    while (SDL_PollEvent(&Event)) {
43      if (Event.type == SDL_QUIT) {
44        Running = false;
45      } else if (
46        Event.type == SDL_MOUSEBUTTONDOWN
47      ) {
48        int MouseX = Event.button.x;
49        int MouseY = Event.button.y;
50
51        // Detect click on the close button
52        if (MouseX >= 770 && MouseY <= 30) {
53          
54          Running = false;
55        }
56      }
57    }
58
59    // Render custom decorations
60    SDL_SetRenderDrawColor(Renderer,
61      0, 0, 0, 255); // Black background
62    
63    SDL_RenderClear(Renderer);
64    RenderCustomDecorations(Renderer, 800, 600);
65    SDL_RenderPresent(Renderer);
66  }
67
68  SDL_DestroyRenderer(Renderer);
69  SDL_DestroyWindow(Window);
70  SDL_Quit();
71}