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Comment: Added examples
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| Deletions are marked like this. | Additions are marked like this. |
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| <<Include(<SDL_WindowEvent>, , , from="##Example1 Start", to="##End")>> |
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| You can add your code example here | #include "SDL.h" int main(int, char**) { 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_SHOWN | SDL_WINDOW_RESIZABLE ); Uint32 windowID = SDL_GetWindowFromID(window); while (true) { 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_Sleep(1); } } |
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 |
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 |
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 |
Code Examples
#include "SDL.h"
int main(int, char**) {
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_SHOWN | SDL_WINDOW_RESIZABLE
);
Uint32 windowID = SDL_GetWindowFromID(window);
while (true) {
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_Sleep(1);
}
}
Remarks
You can add useful comments here
