SDL_HINT_WINDOWS_ERASE_BACKGROUND_MODE

A variable controlling whether SDL will clear the window contents when the WM_ERASEBKGND message is received.

Header File

Defined in <SDL3/SDL_hints.h>

Syntax

#define SDL_HINT_WINDOWS_ERASE_BACKGROUND_MODE "SDL_WINDOWS_ERASE_BACKGROUND_MODE"

Remarks

The variable can be set to the following values:

• "0"/"never": Never clear the window.
• "1"/"initial": Clear the window when the first WM_ERASEBKGND event fires. (default)
• "2"/"always": Clear the window on every WM_ERASEBKGND event.

This hint should be set before creating a window.

Version

This hint is available since SDL 3.2.0.

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CategoryAPI, CategoryAPIMacro, CategoryHints

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