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.TH SDL_RenderViewportSet 3 "SDL 3.1.0" "SDL" "SDL3 FUNCTIONS"
.SH NAME
SDL_RenderViewportSet \- Return whether an explicit rectangle was set as the viewport\[char46]
.SH SYNOPSIS
.nf
.B #include \(dqSDL3/SDL.h\(dq
.PP
.BI "SDL_bool SDL_RenderViewportSet(SDL_Renderer *renderer);
.fi
.SH DESCRIPTION
This is useful if you're saving and restoring the viewport and want to know
whether you should restore a specific rectangle or NULL\[char46] Note that the
viewport is always reset when changing rendering targets\[char46]

.SH FUNCTION PARAMETERS
.TP
.I renderer
the rendering context
.SH RETURN VALUE
Returns 
.BR SDL_TRUE
 if the viewport was set to a specific
rectangle, or 
.BR SDL_FALSE
 if it was set to NULL (the entire
target)

.SH AVAILABILITY
This function is available since SDL 3\[char46]0\[char46]0\[char46]

.SH SEE ALSO
.BR SDL_GetRenderViewport (3),
.BR SDL_SetRenderViewport (3)