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render: add a hint for toggling relative scaling

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Fixes Bugzilla #4811.
This commit is contained in:
hmk
2019-09-30 22:54:16 +03:00
parent aa188048f1
commit 0918903f3c
3 changed files with 18 additions and 2 deletions
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11
include/SDL_hints.h
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@@ -314,6 +314,17 @@ extern "C" {
*/
#define SDL_HINT_MOUSE_RELATIVE_SPEED_SCALE "SDL_MOUSE_RELATIVE_SPEED_SCALE"
/**
* \brief A variable controlling whether relative mouse motion is affected by renderer scaling
*
* This variable can be set to the following values:
* "0" - Relative motion is unaffected by DPI or renderer's logical size
* "1" - Relative motion is scaled according to DPI scaling and logical size
*
* By default relative mouse deltas are affected by DPI and renderer scaling
*/
#define SDL_HINT_MOUSE_RELATIVE_SCALING "SDL_MOUSE_RELATIVE_SCALING"
/**
* \brief A variable controlling whether relative mouse mode is implemented using mouse warping
*