93 lines
2 KiB
C
93 lines
2 KiB
C
#ifndef DGL_MOUSE_H_INCLUDED
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#define DGL_MOUSE_H_INCLUDED
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#include "common.h"
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#define MOUSE_LEFTBUTTON 0x01
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#define MOUSE_RIGHTBUTTON 0x02
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#define MOUSE_CENTERBUTTON 0x04
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/*
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* Current mouse cursor X position.
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*/
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volatile extern int mouse_x;
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/*
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* Current mouse cursor Y position.
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*/
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volatile extern int mouse_y;
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/*
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* Current state of mouse buttons.
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*/
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volatile extern int mouse_buttons;
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/*
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* Amount the cursor moved along the X-axis since the last update.
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*/
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volatile extern int mouse_delta_x;
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/*
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* Amount the cursor moved along the Y-axis since the last update.
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*/
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volatile extern int mouse_delta_y;
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/*
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* Installs a custom mouse handler.
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* @return TRUE on success
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*/
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boolean mouse_init(void);
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/*
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* Removes a previously installed mouse handler.
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* @return TRUE on success
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*/
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boolean mouse_shutdown(void);
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/*
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* @return TRUE if the custom mouse handler is installed.
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*/
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boolean mouse_is_initialized(void);
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/*
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* @return TRUE if the user's computer has a (recognized) mouse connected.
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*/
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boolean mouse_is_present(void);
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/*
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* Shows the mouse cursor. If the mouse cursor is currently shown, this does
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* nothing.
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*/
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void mouse_show(void);
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/*
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* Hides the mouse cursor. If the mouse cursor is not currently shown, this
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* does nothing.
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*/
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void mouse_hide(void);
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/*
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* Sets the pixel boundaries for the mouse cursor.
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* @param min_x left coordinate
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* @param max_x right coordinate
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* @param min_y top coordinate
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* @param max_y bottom coordinate
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*/
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void mouse_set_bounds(int min_x, int min_y, int max_x, int max_y);
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/*
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* Returns the current status of the specified button.
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* @param button The button to check the status of.
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* @return TRUE if the button is pressed.
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*/
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static inline boolean mouse_button(int button);
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// --------------------------------------------------------------------------
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static inline boolean mouse_button(int button) {
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return (mouse_buttons & button) != 0;
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}
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#endif
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