Function SDL_RenderCoordinatesFromWindow 

pub unsafe extern "C" fn SDL_RenderCoordinatesFromWindow(
    renderer: *mut SDL_Renderer,
    window_x: c_float,
    window_y: c_float,
    x: *mut c_float,
    y: *mut c_float,
) -> bool

Get a point in render coordinates when given a point in window coordinates.

This takes into account several states:

• The window dimensions.
• The logical presentation settings (SDL_SetRenderLogicalPresentation)
• The scale (SDL_SetRenderScale)
• The viewport (SDL_SetRenderViewport)

Parameters

• renderer: the rendering context.
• window_x: the x coordinate in window coordinates.
• window_y: the y coordinate in window coordinates.
• x: a pointer filled with the x coordinate in render coordinates.
• y: a pointer filled with the y coordinate in render coordinates.

Return value

Returns true on success or false on failure; call SDL_GetError() for more information.

Thread safety

This function should only be called on the main thread.

Availability

This function is available since SDL 3.2.0.

See also

• SDL_SetRenderLogicalPresentation
• SDL_SetRenderScale