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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/**
+ * # CategoryClipboard
+ *
+ * SDL provides access to the system clipboard, both for reading information
+ * from other processes and publishing information of its own.
+ *
+ * This is not just text! SDL apps can access and publish data by mimetype.
+ *
+ * ## Basic use (text)
+ *
+ * Obtaining and publishing simple text to the system clipboard is as easy as
+ * calling SDL_GetClipboardText() and SDL_SetClipboardText(), respectively.
+ * These deal with C strings in UTF-8 encoding. Data transmission and encoding
+ * conversion is completely managed by SDL.
+ *
+ * ## Clipboard callbacks (data other than text)
+ *
+ * Things get more complicated when the clipboard contains something other
+ * than text. Not only can the system clipboard contain data of any type, in
+ * some cases it can contain the same data in different formats! For example,
+ * an image painting app might let the user copy a graphic to the clipboard,
+ * and offers it in .BMP, .JPG, or .PNG format for other apps to consume.
+ *
+ * Obtaining clipboard data ("pasting") like this is a matter of calling
+ * SDL_GetClipboardData() and telling it the mimetype of the data you want.
+ * But how does one know if that format is available? SDL_HasClipboardData()
+ * can report if a specific mimetype is offered, and
+ * SDL_GetClipboardMimeTypes() can provide the entire list of mimetypes
+ * available, so the app can decide what to do with the data and what formats
+ * it can support.
+ *
+ * Setting the clipboard ("copying") to arbitrary data is done with
+ * SDL_SetClipboardData. The app does not provide the data in this call, but
+ * rather the mimetypes it is willing to provide and a callback function.
+ * During the callback, the app will generate the data. This allows massive
+ * data sets to be provided to the clipboard, without any data being copied
+ * before it is explicitly requested. More specifically, it allows an app to
+ * offer data in multiple formats without providing a copy of all of them
+ * upfront. If the app has an image that it could provide in PNG or JPG
+ * format, it doesn't have to encode it to either of those unless and until
+ * something tries to paste it.
+ *
+ * ## Primary Selection
+ *
+ * The X11 and Wayland video targets have a concept of the "primary selection"
+ * in addition to the usual clipboard. This is generally highlighted (but not
+ * explicitly copied) text from various apps. SDL offers APIs for this through
+ * SDL_GetPrimarySelectionText() and SDL_SetPrimarySelectionText(). SDL offers
+ * these APIs on platforms without this concept, too, but only so far that it
+ * will keep a copy of a string that the app sets for later retrieval; the
+ * operating system will not ever attempt to change the string externally if
+ * it doesn't support a primary selection.
+ */
+
+#ifndef SDL_clipboard_h_
+#define SDL_clipboard_h_
+
+#include <SDL3/SDL_stdinc.h>
+#include <SDL3/SDL_error.h>
+
+#include <SDL3/SDL_begin_code.h>
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Function prototypes */
+
+/**
+ * Put UTF-8 text into the clipboard.
+ *
+ * \param text the text to store in the clipboard.
+ * \returns true on success or false on failure; call SDL_GetError() for more
+ *          information.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetClipboardText
+ * \sa SDL_HasClipboardText
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_SetClipboardText(const char *text);
+
+/**
+ * Get UTF-8 text from the clipboard.
+ *
+ * This functions returns an empty string if there was not enough memory left
+ * for a copy of the clipboard's content.
+ *
+ * \returns the clipboard text on success or an empty string on failure; call
+ *          SDL_GetError() for more information. This should be freed with
+ *          SDL_free() when it is no longer needed.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_HasClipboardText
+ * \sa SDL_SetClipboardText
+ */
+extern SDL_DECLSPEC char * SDLCALL SDL_GetClipboardText(void);
+
+/**
+ * Query whether the clipboard exists and contains a non-empty text string.
+ *
+ * \returns true if the clipboard has text, or false if it does not.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetClipboardText
+ * \sa SDL_SetClipboardText
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_HasClipboardText(void);
+
+/**
+ * Put UTF-8 text into the primary selection.
+ *
+ * \param text the text to store in the primary selection.
+ * \returns true on success or false on failure; call SDL_GetError() for more
+ *          information.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetPrimarySelectionText
+ * \sa SDL_HasPrimarySelectionText
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_SetPrimarySelectionText(const char *text);
+
+/**
+ * Get UTF-8 text from the primary selection.
+ *
+ * This functions returns an empty string if there was not enough memory left
+ * for a copy of the primary selection's content.
+ *
+ * \returns the primary selection text on success or an empty string on
+ *          failure; call SDL_GetError() for more information. This should be
+ *          freed with SDL_free() when it is no longer needed.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_HasPrimarySelectionText
+ * \sa SDL_SetPrimarySelectionText
+ */
+extern SDL_DECLSPEC char * SDLCALL SDL_GetPrimarySelectionText(void);
+
+/**
+ * Query whether the primary selection exists and contains a non-empty text
+ * string.
+ *
+ * \returns true if the primary selection has text, or false if it does not.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_GetPrimarySelectionText
+ * \sa SDL_SetPrimarySelectionText
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_HasPrimarySelectionText(void);
+
+/**
+ * Callback function that will be called when data for the specified mime-type
+ * is requested by the OS.
+ *
+ * The callback function is called with NULL as the mime_type when the
+ * clipboard is cleared or new data is set. The clipboard is automatically
+ * cleared in SDL_Quit().
+ *
+ * \param userdata a pointer to provided user data.
+ * \param mime_type the requested mime-type.
+ * \param size a pointer filled in with the length of the returned data.
+ * \returns a pointer to the data for the provided mime-type. Returning NULL
+ *          or setting length to 0 will cause no data to be sent to the
+ *          "receiver". It is up to the receiver to handle this. Essentially
+ *          returning no data is more or less undefined behavior and may cause
+ *          breakage in receiving applications. The returned data will not be
+ *          freed so it needs to be retained and dealt with internally.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_SetClipboardData
+ */
+typedef const void *(SDLCALL *SDL_ClipboardDataCallback)(void *userdata, const char *mime_type, size_t *size);
+
+/**
+ * Callback function that will be called when the clipboard is cleared, or new
+ * data is set.
+ *
+ * \param userdata a pointer to provided user data.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_SetClipboardData
+ */
+typedef void (SDLCALL *SDL_ClipboardCleanupCallback)(void *userdata);
+
+/**
+ * Offer clipboard data to the OS.
+ *
+ * Tell the operating system that the application is offering clipboard data
+ * for each of the provided mime-types. Once another application requests the
+ * data the callback function will be called, allowing it to generate and
+ * respond with the data for the requested mime-type.
+ *
+ * The size of text data does not include any terminator, and the text does
+ * not need to be null terminated (e.g. you can directly copy a portion of a
+ * document).
+ *
+ * \param callback a function pointer to the function that provides the
+ *                 clipboard data.
+ * \param cleanup a function pointer to the function that cleans up the
+ *                clipboard data.
+ * \param userdata an opaque pointer that will be forwarded to the callbacks.
+ * \param mime_types a list of mime-types that are being offered.
+ * \param num_mime_types the number of mime-types in the mime_types list.
+ * \returns true on success or false on failure; call SDL_GetError() for more
+ *          information.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_ClearClipboardData
+ * \sa SDL_GetClipboardData
+ * \sa SDL_HasClipboardData
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_SetClipboardData(SDL_ClipboardDataCallback callback, SDL_ClipboardCleanupCallback cleanup, void *userdata, const char **mime_types, size_t num_mime_types);
+
+/**
+ * Clear the clipboard data.
+ *
+ * \returns true on success or false on failure; call SDL_GetError() for more
+ *          information.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_SetClipboardData
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_ClearClipboardData(void);
+
+/**
+ * Get the data from clipboard for a given mime type.
+ *
+ * The size of text data does not include the terminator, but the text is
+ * guaranteed to be null terminated.
+ *
+ * \param mime_type the mime type to read from the clipboard.
+ * \param size a pointer filled in with the length of the returned data.
+ * \returns the retrieved data buffer or NULL on failure; call SDL_GetError()
+ *          for more information. This should be freed with SDL_free() when it
+ *          is no longer needed.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_HasClipboardData
+ * \sa SDL_SetClipboardData
+ */
+extern SDL_DECLSPEC void * SDLCALL SDL_GetClipboardData(const char *mime_type, size_t *size);
+
+/**
+ * Query whether there is data in the clipboard for the provided mime type.
+ *
+ * \param mime_type the mime type to check for data for.
+ * \returns true if there exists data in clipboard for the provided mime type,
+ *          false if it does not.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_SetClipboardData
+ * \sa SDL_GetClipboardData
+ */
+extern SDL_DECLSPEC bool SDLCALL SDL_HasClipboardData(const char *mime_type);
+
+/**
+ * Retrieve the list of mime types available in the clipboard.
+ *
+ * \param num_mime_types a pointer filled with the number of mime types, may
+ *                       be NULL.
+ * \returns a null terminated array of strings with mime types, or NULL on
+ *          failure; call SDL_GetError() for more information. This should be
+ *          freed with SDL_free() when it is no longer needed.
+ *
+ * \threadsafety This function should only be called on the main thread.
+ *
+ * \since This function is available since SDL 3.2.0.
+ *
+ * \sa SDL_SetClipboardData
+ */
+extern SDL_DECLSPEC char ** SDLCALL SDL_GetClipboardMimeTypes(size_t *num_mime_types);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include <SDL3/SDL_close_code.h>
+
+#endif /* SDL_clipboard_h_ */