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Added documentation for getting the X11 window from an SDL window

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This commit is contained in:
Sam Lantinga
2023-12-28 15:56:37 -08:00
parent ffb8515c21
commit 3976bbef2a
1 changed files with 20 additions and 2 deletions
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22
docs/README-migration.md
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@@ -1199,22 +1199,40 @@ The Windows and X11 events are now available via callbacks which you can set wit
The information previously available in SDL_GetWindowWMInfo() is now available as window properties, e.g.
```c
HWND hwnd = NULL;
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
#if defined(__WIN32__)
HWND hwnd = NULL;
if (SDL_GetWindowWMInfo(window, &info) && info.subsystem == SDL_SYSWM_WINDOWS) {
hwnd = info.info.win.window;
}
if (hwnd) {
...
}
#elif defined(__LINUX__)
Window xwin = 0;
if (SDL_GetWindowWMInfo(window, &info) && info.subsystem == SDL_SYSWM_X11) {
xwin = info.info.x11.window;
}
if (xwin) {
...
}
#endif
```
becomes:
```c
HWND hwnd = (HWND)SDL_GetProperty(SDL_GetWindowProperties(window), "SDL.window.win32.hwnd");
#if defined(__WIN32__)
HWND hwnd = (HWND)SDL_GetProperty(SDL_GetWindowProperties(window), "SDL.window.win32.hwnd", NULL);
if (hwnd) {
...
}
#elif defined(__LINUX__)
Window xwin = (Window)SDL_GetNumberProperty(SDL_GetWindowProperties(window), "SDL.window.x11.window", 0);
if (xwin) {
...
}
#endif
```
## SDL_thread.h