SDL_WindowEventID
An enumeration of window events.
Values
SDL_WINDOWEVENT_NONE |
(never used) |
SDL_WINDOWEVENT_SHOWN |
window has been shown |
SDL_WINDOWEVENT_HIDDEN |
window has been hidden |
SDL_WINDOWEVENT_EXPOSED |
window has been exposed and should be redrawn |
SDL_WINDOWEVENT_MOVED |
window has been moved to data1, data2 |
SDL_WINDOWEVENT_RESIZED |
window has been resized to data1xdata2; this event is always preceded by SDL_WINDOWEVENT_SIZE_CHANGED |
SDL_WINDOWEVENT_SIZE_CHANGED |
window size has changed, either as a result of an API call or through the system or user changing the window size; this event is followed by SDL_WINDOWEVENT_RESIZED if the size was changed by an external event, i.e. the user or the window manager |
SDL_WINDOWEVENT_MINIMIZED |
window has been minimized |
SDL_WINDOWEVENT_MAXIMIZED |
window has been maximized |
SDL_WINDOWEVENT_RESTORED |
window has been restored to normal size and position |
SDL_WINDOWEVENT_ENTER |
window has gained mouse focus |
SDL_WINDOWEVENT_LEAVE |
window has lost mouse focus |
SDL_WINDOWEVENT_FOCUS_GAINED |
window has gained keyboard focus |
SDL_WINDOWEVENT_FOCUS_LOST |
window has lost keyboard focus |
SDL_WINDOWEVENT_CLOSE |
the window manager requests that the window be closed |
SDL_WINDOWEVENT_TAKE_FOCUS |
window is being offered a focus (should SDL_SetWindowInputFocus() on itself or a subwindow, or ignore) (>= SDL 2.0.5) |
SDL_WINDOWEVENT_HIT_TEST |
window had a hit test that wasn't SDL_HITTEST_NORMAL (>= SDL 2.0.5) |
Code Examples
#include <stdlib.h>
#include "SDL.h"
int main(int argc, char *argv[]) {
int width = 640;
int height = 480;
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
return 1;
}
atexit(SDL_Quit);
SDL_Window* window = SDL_CreateWindow(
"Example", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
width, height, SDL_WINDOW_RESIZABLE
);
Uint32 windowID = SDL_GetWindowID(window);
while (1) {
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_WINDOWEVENT: {
if (event.window.windowID == windowID) {
switch (event.window.event) {
case SDL_WINDOWEVENT_SIZE_CHANGED: {
width = event.window.data1;
height = event.window.data2;
break;
}
case SDL_WINDOWEVENT_CLOSE: {
event.type = SDL_QUIT;
SDL_PushEvent(&event);
break;
}
}
}
break;
}
case SDL_QUIT: {
return 0;
}
/* ... */
}
}
/* ... */
SDL_Delay(1);
}
}
Remarks
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