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SDL_mouse.h File Reference
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_video.h"
#include "begin_code.h"
#include "close_code.h"

Go to the source code of this file.

Macros

#define SDL_BUTTON(X)   (1 << ((X)-1))
 
#define SDL_BUTTON_LEFT   1
 
#define SDL_BUTTON_LMASK   SDL_BUTTON(SDL_BUTTON_LEFT)
 
#define SDL_BUTTON_MIDDLE   2
 
#define SDL_BUTTON_MMASK   SDL_BUTTON(SDL_BUTTON_MIDDLE)
 
#define SDL_BUTTON_RIGHT   3
 
#define SDL_BUTTON_RMASK   SDL_BUTTON(SDL_BUTTON_RIGHT)
 
#define SDL_BUTTON_X1   4
 
#define SDL_BUTTON_X1MASK   SDL_BUTTON(SDL_BUTTON_X1)
 
#define SDL_BUTTON_X2   5
 
#define SDL_BUTTON_X2MASK   SDL_BUTTON(SDL_BUTTON_X2)
 

Typedefs

typedef struct SDL_Cursor SDL_Cursor
 

Enumerations

enum  SDL_SystemCursor {
  SDL_SYSTEM_CURSOR_ARROW, SDL_SYSTEM_CURSOR_IBEAM, SDL_SYSTEM_CURSOR_WAIT, SDL_SYSTEM_CURSOR_CROSSHAIR,
  SDL_SYSTEM_CURSOR_WAITARROW, SDL_SYSTEM_CURSOR_SIZENWSE, SDL_SYSTEM_CURSOR_SIZENESW, SDL_SYSTEM_CURSOR_SIZEWE,
  SDL_SYSTEM_CURSOR_SIZENS, SDL_SYSTEM_CURSOR_SIZEALL, SDL_SYSTEM_CURSOR_NO, SDL_SYSTEM_CURSOR_HAND,
  SDL_NUM_SYSTEM_CURSORS
}
 Cursor types for SDL_CreateSystemCursor. More...
 

Functions

DECLSPEC SDL_Cursor *SDLCALL SDL_CreateColorCursor (SDL_Surface *surface, int hot_x, int hot_y)
 Create a color cursor. More...
 
DECLSPEC SDL_Cursor *SDLCALL SDL_CreateCursor (const Uint8 *data, const Uint8 *mask, int w, int h, int hot_x, int hot_y)
 Create a cursor, using the specified bitmap data and mask (in MSB format). More...
 
DECLSPEC SDL_Cursor *SDLCALL SDL_CreateSystemCursor (SDL_SystemCursor id)
 Create a system cursor. More...
 
DECLSPEC void SDLCALL SDL_FreeCursor (SDL_Cursor *cursor)
 Frees a cursor created with SDL_CreateCursor(). More...
 
DECLSPEC SDL_Cursor *SDLCALL SDL_GetCursor (void)
 Return the active cursor. More...
 
DECLSPEC SDL_Cursor *SDLCALL SDL_GetDefaultCursor (void)
 Return the default cursor. More...
 
DECLSPEC SDL_Window *SDLCALL SDL_GetMouseFocus (void)
 Get the window which currently has mouse focus. More...
 
DECLSPEC Uint32 SDLCALL SDL_GetMouseState (int *x, int *y)
 Retrieve the current state of the mouse. More...
 
DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode (void)
 Query whether relative mouse mode is enabled. More...
 
DECLSPEC Uint32 SDLCALL SDL_GetRelativeMouseState (int *x, int *y)
 Retrieve the relative state of the mouse. More...
 
DECLSPEC void SDLCALL SDL_SetCursor (SDL_Cursor *cursor)
 Set the active cursor. More...
 
DECLSPEC int SDLCALL SDL_SetRelativeMouseMode (SDL_bool enabled)
 Set relative mouse mode. More...
 
DECLSPEC int SDLCALL SDL_ShowCursor (int toggle)
 Toggle whether or not the cursor is shown. More...
 
DECLSPEC void SDLCALL SDL_WarpMouseInWindow (SDL_Window *window, int x, int y)
 Moves the mouse to the given position within the window. More...
 

Detailed Description

Include file for SDL mouse event handling.

Definition in file SDL_mouse.h.

Macro Definition Documentation

#define SDL_BUTTON (   X)    (1 << ((X)-1))

Used as a mask when testing buttons in buttonstate.

  • Button 1: Left mouse button
  • Button 2: Middle mouse button
  • Button 3: Right mouse button

Definition at line 203 of file SDL_mouse.h.

Referenced by SDL_ResetMouse(), and SDL_SendMouseButton().

#define SDL_BUTTON_LMASK   SDL_BUTTON(SDL_BUTTON_LEFT)

Definition at line 209 of file SDL_mouse.h.

#define SDL_BUTTON_MIDDLE   2

Definition at line 205 of file SDL_mouse.h.

#define SDL_BUTTON_MMASK   SDL_BUTTON(SDL_BUTTON_MIDDLE)

Definition at line 210 of file SDL_mouse.h.

#define SDL_BUTTON_RIGHT   3

Definition at line 206 of file SDL_mouse.h.

#define SDL_BUTTON_RMASK   SDL_BUTTON(SDL_BUTTON_RIGHT)

Definition at line 211 of file SDL_mouse.h.

#define SDL_BUTTON_X1   4

Definition at line 207 of file SDL_mouse.h.

#define SDL_BUTTON_X1MASK   SDL_BUTTON(SDL_BUTTON_X1)

Definition at line 212 of file SDL_mouse.h.

#define SDL_BUTTON_X2   5

Definition at line 208 of file SDL_mouse.h.

#define SDL_BUTTON_X2MASK   SDL_BUTTON(SDL_BUTTON_X2)

Definition at line 213 of file SDL_mouse.h.

Typedef Documentation

typedef struct SDL_Cursor SDL_Cursor

Definition at line 41 of file SDL_mouse.h.

Enumeration Type Documentation

Cursor types for SDL_CreateSystemCursor.

Enumerator
SDL_SYSTEM_CURSOR_ARROW 

Arrow

SDL_SYSTEM_CURSOR_IBEAM 

I-beam

SDL_SYSTEM_CURSOR_WAIT 

Wait

SDL_SYSTEM_CURSOR_CROSSHAIR 

Crosshair

SDL_SYSTEM_CURSOR_WAITARROW 

Small wait cursor (or Wait if not available)

SDL_SYSTEM_CURSOR_SIZENWSE 

Double arrow pointing northwest and southeast

SDL_SYSTEM_CURSOR_SIZENESW 

Double arrow pointing northeast and southwest

SDL_SYSTEM_CURSOR_SIZEWE 

Double arrow pointing west and east

SDL_SYSTEM_CURSOR_SIZENS 

Double arrow pointing north and south

SDL_SYSTEM_CURSOR_SIZEALL 

Four pointed arrow pointing north, south, east, and west

SDL_SYSTEM_CURSOR_NO 

Slashed circle or crossbones

SDL_SYSTEM_CURSOR_HAND 

Hand

SDL_NUM_SYSTEM_CURSORS 

Definition at line 46 of file SDL_mouse.h.

Function Documentation

DECLSPEC SDL_Cursor* SDLCALL SDL_CreateCursor ( const Uint8 data,
const Uint8 mask,
int  w,
int  h,
int  hot_x,
int  hot_y 
)

Create a cursor, using the specified bitmap data and mask (in MSB format).

The cursor width must be a multiple of 8 bits.

The cursor is created in black and white according to the following:

data mask resulting pixel on screen
0 1 White
1 1 Black
0 0 Transparent
1 0 Inverted color if possible, black if not.
See Also
SDL_FreeCursor()

Definition at line 486 of file SDL_mouse.c.

References NULL, SDL_Surface::pitch, SDL_Surface::pixels, SDL_CreateColorCursor(), SDL_CreateRGBSurface(), and SDL_FreeSurface().

DECLSPEC SDL_Cursor* SDLCALL SDL_CreateSystemCursor ( SDL_SystemCursor  id)

Create a system cursor.

See Also
SDL_FreeCursor()

Definition at line 578 of file SDL_mouse.c.

References SDL_Mouse::CreateSystemCursor, SDL_Mouse::cursors, SDL_Cursor::next, NULL, SDL_GetMouse(), and SDL_SetError().

DECLSPEC void SDLCALL SDL_FreeCursor ( SDL_Cursor cursor)
DECLSPEC SDL_Cursor* SDLCALL SDL_GetCursor ( void  )

Return the active cursor.

Definition at line 642 of file SDL_mouse.c.

References SDL_Mouse::cur_cursor, NULL, and SDL_GetMouse().

DECLSPEC SDL_Cursor* SDLCALL SDL_GetDefaultCursor ( void  )

Return the default cursor.

Definition at line 653 of file SDL_mouse.c.

References SDL_Mouse::def_cursor, NULL, and SDL_GetMouse().

DECLSPEC SDL_Window* SDLCALL SDL_GetMouseFocus ( void  )

Get the window which currently has mouse focus.

Definition at line 68 of file SDL_mouse.c.

References SDL_Mouse::focus, and SDL_GetMouse().

Referenced by SDL_DestroyWindow(), and SDL_RestoreMousePosition().

DECLSPEC Uint32 SDLCALL SDL_GetMouseState ( int x,
int y 
)

Retrieve the current state of the mouse.

The current button state is returned as a button bitmask, which can be tested using the SDL_BUTTON(X) macros, and x and y are set to the mouse cursor position relative to the focus window for the currently selected mouse. You can pass NULL for either x or y.

Definition at line 382 of file SDL_mouse.c.

References SDL_Mouse::buttonstate, SDL_GetMouse(), SDL_Mouse::x, and SDL_Mouse::y.

Referenced by Zeni::Game::run(), and SDL_RestoreMousePosition().

DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode ( void  )

Query whether relative mouse mode is enabled.

See Also
SDL_SetRelativeMouseMode()

Definition at line 478 of file SDL_mouse.c.

References SDL_Mouse::relative_mode, and SDL_GetMouse().

Referenced by Zeni::Window::get_mouse_state(), SDL_ShowMessageBox(), and SDLTest_CommonEvent().

DECLSPEC Uint32 SDLCALL SDL_GetRelativeMouseState ( int x,
int y 
)

Retrieve the relative state of the mouse.

The current button state is returned as a button bitmask, which can be tested using the SDL_BUTTON(X) macros, and x and y are set to the mouse deltas since the last call to SDL_GetRelativeMouseState().

Definition at line 396 of file SDL_mouse.c.

References SDL_Mouse::buttonstate, SDL_GetMouse(), SDL_Mouse::xdelta, and SDL_Mouse::ydelta.

DECLSPEC int SDLCALL SDL_SetRelativeMouseMode ( SDL_bool  enabled)

Set relative mouse mode.

Parameters
enabledWhether or not to enable relative mode
Returns
0 on success, or -1 if relative mode is not supported.

While the mouse is in relative mode, the cursor is hidden, and the driver will try to report continuous motion in the current window. Only relative motion events will be delivered, the mouse position will not change.

Note
This function will flush any pending mouse motion.
See Also
SDL_GetRelativeMouseMode()

Definition at line 430 of file SDL_mouse.c.

References SDL_Mouse::focus, SDL_Window::h, NULL, SDL_Mouse::original_x, SDL_Mouse::original_y, SDL_Mouse::relative_mode, SDL_FlushEvent(), SDL_GetKeyboardFocus(), SDL_GetMouse(), SDL_MOUSEMOTION, SDL_SetCursor(), SDL_SetMouseFocus(), SDL_Unsupported, SDL_WarpMouseInWindow(), SDL_Mouse::SetRelativeMouseMode, SDL_Window::w, SDL_Mouse::x, and SDL_Mouse::y.

Referenced by SDL_ShowMessageBox(), SDLTest_CommonEvent(), and Zeni::Window::set_mouse_state().

DECLSPEC int SDLCALL SDL_ShowCursor ( int  toggle)

Toggle whether or not the cursor is shown.

Parameters
toggle1 to show the cursor, 0 to hide it, -1 to query the current state.
Returns
1 if the cursor is shown, or 0 if the cursor is hidden.

Definition at line 698 of file SDL_mouse.c.

References SDL_Mouse::cursor_shown, NULL, SDL_FALSE, SDL_GetMouse(), SDL_SetCursor(), and SDL_TRUE.

Referenced by Zeni::Window::get_mouse_state(), SDL_MouseQuit(), SDL_ShowMessageBox(), and Zeni::Window::set_mouse_state().

DECLSPEC void SDLCALL SDL_WarpMouseInWindow ( SDL_Window window,
int  x,
int  y 
)

Moves the mouse to the given position within the window.

Parameters
windowThe window to move the mouse into, or NULL for the current mouse focus
xThe x coordinate within the window
yThe y coordinate within the window
Note
This function generates a mouse motion event

Definition at line 412 of file SDL_mouse.c.

References SDL_Mouse::focus, SDL_Mouse::mouseID, NULL, SDL_GetMouse(), SDL_SendMouseMotion(), and SDL_Mouse::WarpMouse.

Referenced by Zeni::Game::run(), SDL_OnWindowFocusGained(), SDL_RestoreMousePosition(), and SDL_SetRelativeMouseMode().