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