mirror
/
SDL
mirror of https://github.com/libsdl-org/SDL.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

docs: Note the preferred function for getting the content scale of a window 

SDL_GetWindowDisplayScale() should be preferred over SDL_GetDisplayForWindow() + SDL_GetDisplayContentScale() for querying the per-window content scale, as the former provides a more accurate and current value for individual windows, as the per-window value can differ from the base display scale value, particularly on high-DPI and multi-monitor desktops.
This commit is contained in:
Frank Praznik 2025-01-21 11:05:05 -05:00
parent 8526868563
commit 8a67896d9a
No known key found for this signature in database
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/SDL3/SDL_video.h
View File

@ -729,6 +729,12 @@ extern SDL_DECLSPEC SDL_DisplayOrientation SDLCALL SDL_GetCurrentDisplayOrientat
* display scale, which means that the user expects UI elements to be twice as
* big on this display, to aid in readability.
*
* After window creation, SDL_GetWindowDisplayScale() should be used to query
* the content scale factor for individual windows instead of querying the display
* for a window and calling this function, as the per-window content scale factor
* may differ from the base value of the display it is on, particularly on
* high-DPI and/or multi-monitor desktop configurations.
*
* \param displayID the instance ID of the display to query.
* \returns the content scale of the display, or 0.0f on failure; call
* SDL_GetError() for more information.
@ -737,6 +743,7 @@ extern SDL_DECLSPEC SDL_DisplayOrientation SDLCALL SDL_GetCurrentDisplayOrientat
*
* \since This function is available since SDL 3.1.3.
*
* \sa SDL_GetWindowDisplayScale
* \sa SDL_GetDisplays
*/
extern SDL_DECLSPEC float SDLCALL SDL_GetDisplayContentScale(SDL_DisplayID displayID);