为了调整 c 语言窗口大小,需要执行以下步骤:初始化 sdl 库创建一个可调整大小的窗口获取当前窗口大小根据需要设置新窗口大小捕获窗口调整大小事件清理 sdl
如何调整 C 语言窗口大小
在 C 语言中,调整窗口大小需要使用以下步骤:
1. 初始化 SDL 库
#include <sdl2>
int main() {
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
SDL_Log("Unable to initialize SDL: %s", SDL_GetError());
return 1;
}
}</sdl2>
2. 创建窗口
SDL_Window* window = SDL_CreateWindow("My Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_RESIZABLE);
其中,640 和 480 是初始窗口宽高,SDL_WINDOW_RESIZABLE 表示窗口可调整大小。
3. 获取窗口大小
int width, height;
SDL_GetWindowSize(window, &width, &height);
4. 设置新窗口大小
SDL_SetWindowSize(window, new_width, new_height);
其中,new_width 和 new_height 是新窗口宽高。
5. 捕获窗口调整事件
SDL_Event event;
while (SDL_WaitEvent(&event)) {
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
// 窗口调整大小事件
}
}
6. 清理 SDL
SDL_Quit();
示例代码:
#include <sdl2>
int main() {
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
SDL_Log("Unable to initialize SDL: %s", SDL_GetError());
return 1;
}
SDL_Window* window = SDL_CreateWindow("My Window", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_RESIZABLE);
if (!window) {
SDL_Log("Unable to create window: %s", SDL_GetError());
return 1;
}
int width, height;
SDL_GetWindowSize(window, &width, &height);
while (true) {
SDL_Event event;
while (SDL_WaitEvent(&event)) {
if (event.type == SDL_QUIT) {
break;
} else if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
width = event.window.data1;
height = event.window.data2;
}
}
// 渲染代码...
SDL_UpdateWindowSurface(window);
}
SDL_Quit();
return 0;
}</sdl2>