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demos/triangle: Destroy the window when escape is pressed.

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This commit is contained in:
Henri Verbeet
2016-11-02 14:44:24 +01:00
parent f9805396d9
commit 169810d20d
5 changed files with 61 additions and 9 deletions
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21
demos/demo_win32.h
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@@ -44,6 +44,7 @@ struct demo_window
struct demo *demo;
void *user_data;
void (*draw_func)(void *user_data);
void (*key_press_func)(struct demo_window *window, demo_key key, void *user_data);
};
struct demo_swapchain
@@ -74,6 +75,7 @@ static inline struct demo_window *demo_window_create(struct demo *demo, const ch
window->instance = GetModuleHandle(NULL);
window->draw_func = draw_func;
window->user_data = user_data;
window->key_press_func = NULL;
style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_VISIBLE;
AdjustWindowRect(&rect, style, FALSE);
@@ -101,6 +103,13 @@ static inline void demo_window_destroy(struct demo_window *window)
free(window);
}
static inline demo_key demo_key_from_vkey(DWORD vkey)
{
if (vkey == VK_ESCAPE)
return DEMO_KEY_ESCAPE;
return DEMO_KEY_UNKNOWN;
}
static inline LRESULT CALLBACK demo_window_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{
struct demo_window *window = (void *)GetWindowLongPtrW(hwnd, GWLP_USERDATA);
@@ -112,6 +121,12 @@ static inline LRESULT CALLBACK demo_window_proc(HWND hwnd, UINT message, WPARAM
window->draw_func(window->user_data);
return 0;
case WM_KEYDOWN:
if (!window->key_press_func)
break;
window->key_press_func(window, demo_key_from_vkey(wparam), window->user_data);
return 0;
case WM_DESTROY:
window->hwnd = NULL;
demo_window_destroy(window);
@@ -121,6 +136,12 @@ static inline LRESULT CALLBACK demo_window_proc(HWND hwnd, UINT message, WPARAM
return DefWindowProcW(hwnd, message, wparam, lparam);
}
static inline void demo_window_set_key_press_func(struct demo_window *window,
void (*key_press_func)(struct demo_window *window, demo_key key, void *user_data))
{
window->key_press_func = key_press_func;
}
static inline void demo_process_events(struct demo *demo)
{
MSG msg = {0};