mouse_x - Online Linux Manual PageSection : 3
Updated : version 4.4.3
Source : Allegro
Note : Allegro manual
NAMEmouse_x, mouse_y, mouse_z, mouse_w, mouse_b, mouse_pos − Global variable with the mouse position/button state. Allegro game programming library.
SYNOPSIS#include <allegro.h> extern volatile int mouse_x; extern volatile int mouse_y; extern volatile int mouse_z; extern volatile int mouse_w; extern volatile int mouse_b; extern volatile int mouse_pos;
DESCRIPTIONGlobal variables containing the current mouse position and button state. Wherever possible these values will be updated asynchronously, but if mouse_needs_poll() returns TRUE, you must manually call poll_mouse() to update them with the current input state. The `mouse_x' and `mouse_y' positions are integers ranging from zero to the bottom right corner of the screen. The `mouse_z' and `mouse_w' variables hold the current vertical and horizontal wheel position, when using an input driver that supports wheel mice. The `mouse_b' variable is a bitfield indicating the state of each button: bit 0 is the left button, bit 1 the right, and bit 2 the middle button. Additional non standard mouse buttons might be available as higher bits in this variable. Usage example: if (mouse_b & 1)
printf("Left button is pressed\n");
if (!(mouse_b & 2))
printf("Right button is not pressed\n");
The `mouse_pos' variable has the current X coordinate in the upper 16 bits and the Y in the lower 16 bits. This may be useful in tight polling loops where a mouse interrupt could occur between your reading of the two separate variables, since you can copy this value into a local variable with a single instruction and then split it up at your leisure. Example: int pos, x, y;
pos = mouse_pos;
x = pos >> 16;
y = pos & 0x0000ffff;
SEE ALSOinstall_mouse(3), poll_mouse(3), mouse_needs_poll(3), exalpha(3), exlights(3), exmouse(3), exshade(3), exspline(3), extrans(3) 0
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ERROR : Need New Coding : (rof_nr_x|149|mouse_x.3|35|\n");| printf("Left button is pressed\\n");
) (rof_nr_x|149|mouse_x.3|38|\n");| printf("Right button is not pressed\\n");
)