(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_CreatePopupWindow

Create a child popup window of the specified parent window.

Header File

Syntax

SDL_Window * SDL_CreatePopupWindow(SDL_Window *parent, int offset_x, int offset_y, int w, int h, SDL_WindowFlags flags);

Function Parameters

SDL_Window *	parent	the parent of the window, must not be NULL.
int	offset_x	the x position of the popup window relative to the origin of the parent.
int	offset_y	the y position of the popup window relative to the origin of the parent window.
int	w	the width of the window.
int	h	the height of the window.
SDL_WindowFlags	flags	SDL_WINDOW_TOOLTIP or SDL_WINDOW_POPUP_MENU, and zero or more additional SDL_WindowFlags OR'd together.

Return Value

(SDL_Window *) Returns the window that was created or NULL on failure; call SDL_GetError() for more information.

Remarks

The flags parameter must contain at least one of the following:

SDL_WINDOW_TOOLTIP: The popup window is a tooltip and will not pass any input events.
SDL_WINDOW_POPUP_MENU: The popup window is a popup menu. The topmost popup menu will implicitly gain the keyboard focus.

The following flags are not relevant to popup window creation and will be ignored:

The following flags are incompatible with popup window creation and will cause it to fail:

The parent parameter must be non-null and a valid window. The parent of a popup window can be either a regular, toplevel window, or another popup window.

Popup windows cannot be minimized, maximized, made fullscreen, raised, flash, be made a modal window, be the parent of a toplevel window, or grab the mouse and/or keyboard. Attempts to do so will fail.

Popup windows implicitly do not have a border/decorations and do not appear on the taskbar/dock or in lists of windows such as alt-tab menus.

If a parent window is hidden or destroyed, any child popup windows will be recursively hidden or destroyed as well. Child popup windows not explicitly hidden will be restored when the parent is shown.

Version

This function is available since SDL 3.1.3.