MacMouseKeyboard.c

// gcc -o MacMouseKeyboard MacMouseKeyboard.c -framework CoreGraphics
#include <CoreGraphics/CGEvent.h>

void mouseEvent(CGEventType mouseType,int x,int y,CGMouseButton mouseButton) {
 CGPoint point=CGPointMake(x,y);
 CGEventRef event=CGEventCreateMouseEvent(NULL,mouseType,point,mouseButton);
 CGEventPost(kCGHIDEventTap,event);
}

void mouseMove(int x,int y) {
 mouseEvent(kCGEventMouseMoved,x,y,kCGMouseButtonLeft);
}

void mouseClick(int x,int y,CGMouseButton mouseButton) {
 mouseEvent(kCGEventLeftMouseDown,x,y,mouseButton);
 mouseEvent(kCGEventLeftMouseUp,x,y,mouseButton);
}

void keyboardEvent(int key,bool keyDown) {
 CGEventRef event=CGEventCreateKeyboardEvent(NULL,(CGKeyCode)key,keyDown);
 CGEventPost(kCGHIDEventTap,event);
}

void keyboardType(int key) {
 keyboardEvent(key,true);
 keyboardEvent(key,false);
}

int main() {
 mouseClick(10,10,kCGMouseButtonLeft);
 mouseMove(100,100);
 keyboardType(0x31);
}