SDL_ShowOpenFileDialog(3)

NAME
SDL_ShowOpenFileDialog - Displays a dialog that lets the user select a file on their filesystem.

SYNOPSIS
#include <SDL3/SDL_dialog.h>

void SDL_ShowOpenFileDialog(SDL_DialogFileCallback callback, void *userdata, SDL_Window *window, const SDL_DialogFileFilter *filters, int nfilters, const char *default_location, bool allow_many);

DESCRIPTION
This is an asynchronous function; it will return immediately, and the result will be passed to the callback.

The callback will be invoked with a null-terminated list of files the user chose. The list will be empty if the user canceled the dialog, and it will be NULL if an error occurred.

Note that the callback may be called from a different thread than the one the function was invoked on.

Depending on the platform, the user may be allowed to input paths that don't yet exist.

On Linux, dialogs may require XDG Portals, which requires DBus, which requires an event-handling loop. Apps that do not use SDL to handle events should add a call to SDL_PumpEvents in their main loop.

FUNCTION PARAMETERS

callback
    a function pointer to be invoked when the user selects a file and accepts, or cancels the dialog, or an error occurs.

userdata
    an optional pointer to pass extra data to the callback when it will be invoked.

window
    the window that the dialog should be modal for, may be NULL. Not all platforms support this option.

filters
    a list of filters, may be NULL. Not all platforms support this option, and platforms that do support it may allow the user to ignore the filters. If non-NULL, it must remain valid at least until the callback is invoked.

nfilters
    the number of filters. Ignored if filters is NULL.

default_location
    the default folder or file to start the dialog at, may be NULL. Not all platforms support this option.

allow_many
    if non-zero, the user will be allowed to select multiple entries. Not all platforms support this option.

THREAD SAFETY
This function should be called only from the main thread. The callback may be invoked from the same thread or from a different one, depending on the OS's constraints.

AVAILABILITY
This function is available since SDL 3.2.0.

SEE ALSO
SDL_DialogFileCallback(3type), SDL_DialogFileFilter(3type), SDL_ShowSaveFileDialog(3), SDL_ShowOpenFolderDialog(3), SDL_ShowFileDialogWithProperties(3)