gohook/hook/windows/event_c.h
2018-09-04 15:25:08 -04:00

329 lines
9.8 KiB
C

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include "../iohook.h"
#include <windows.h>
// #include "logger.h"
#include "input.h"
// Some buggy versions of MinGW and MSys do not include these constants in winuser.h.
#ifndef MAPVK_VK_TO_VSC
#define MAPVK_VK_TO_VSC 0
#define MAPVK_VSC_TO_VK 1
#define MAPVK_VK_TO_CHAR 2
#define MAPVK_VSC_TO_VK_EX 3
#endif
// Some buggy versions of MinGW and MSys only define this value for Windows
// versions >= 0x0600 (Windows Vista) when it should be 0x0500 (Windows 2000).
#ifndef MAPVK_VK_TO_VSC_EX
#define MAPVK_VK_TO_VSC_EX 4
#endif
#ifndef KEYEVENTF_SCANCODE
#define KEYEVENTF_EXTENDEDKEY 0x0001
#define KEYEVENTF_KEYUP 0x0002
#define KEYEVENTF_UNICODE 0x0004
#define KEYEVENTF_SCANCODE 0x0008
#endif
#ifndef KEYEVENTF_KEYDOWN
#define KEYEVENTF_KEYDOWN 0x0000
#endif
#define MAX_WINDOWS_COORD_VALUE 65535
static UINT keymask_lookup[8] = {
VK_LSHIFT,
VK_LCONTROL,
VK_LWIN,
VK_LMENU,
VK_RSHIFT,
VK_RCONTROL,
VK_RWIN,
VK_RMENU
};
IOHOOK_API void hook_post_event(iohook_event * const event) {
//FIXME implement multiple monitor support
uint16_t screen_width = GetSystemMetrics( SM_CXSCREEN );
uint16_t screen_height = GetSystemMetrics( SM_CYSCREEN );
unsigned char events_size = 0, events_max = 28;
INPUT *events = malloc(sizeof(INPUT) * events_max);
if (event->mask & (MASK_SHIFT | MASK_CTRL | MASK_META | MASK_ALT)) {
unsigned int i;
for (i = 0; i < sizeof(keymask_lookup) / sizeof(UINT); i++) {
if (event->mask & 1 << i) {
events[events_size].type = INPUT_KEYBOARD;
events[events_size].ki.wVk = keymask_lookup[i];
events[events_size].ki.dwFlags = KEYEVENTF_KEYDOWN;
events[events_size].ki.time = 0; // Use current system time.
events_size++;
}
}
}
if (event->mask & (MASK_BUTTON1 | MASK_BUTTON2 | MASK_BUTTON3 | MASK_BUTTON4 | MASK_BUTTON5)) {
events[events_size].type = INPUT_MOUSE;
events[events_size].mi.dx = 0; // Relative mouse movement due to
events[events_size].mi.dy = 0; // MOUSEEVENTF_ABSOLUTE not being set.
events[events_size].mi.mouseData = 0x00;
events[events_size].mi.time = 0; // Use current system time.
if (event->mask & MASK_BUTTON1) {
events[events_size].mi.mouseData |= MOUSEEVENTF_LEFTDOWN;
}
if (event->mask & MASK_BUTTON2) {
events[events_size].mi.mouseData |= MOUSEEVENTF_RIGHTDOWN;
}
if (event->mask & MASK_BUTTON3) {
events[events_size].mi.mouseData |= MOUSEEVENTF_MIDDLEDOWN;
}
if (event->mask & MASK_BUTTON4) {
events[events_size].mi.mouseData = XBUTTON1;
events[events_size].mi.mouseData |= MOUSEEVENTF_XDOWN;
}
if (event->mask & MASK_BUTTON5) {
events[events_size].mi.mouseData = XBUTTON2;
events[events_size].mi.dwFlags |= MOUSEEVENTF_XDOWN;
}
events_size++;
}
switch (event->type) {
case EVENT_KEY_PRESSED:
events[events_size].ki.wVk = scancode_to_keycode(event->data.keyboard.keycode);
if (events[events_size].ki.wVk != 0x0000) {
events[events_size].type = INPUT_KEYBOARD;
events[events_size].ki.dwFlags = KEYEVENTF_KEYDOWN; // |= KEYEVENTF_SCANCODE;
events[events_size].ki.wScan = 0; // event->data.keyboard.keycode;
events[events_size].ki.time = 0; // GetSystemTime()
events_size++;
}
else {
logger(LOG_LEVEL_INFO, "%s [%u]: Unable to lookup scancode: %li\n",
__FUNCTION__, __LINE__,
event->data.keyboard.keycode);
}
break;
case EVENT_KEY_RELEASED:
events[events_size].ki.wVk = scancode_to_keycode(event->data.keyboard.keycode);
if (events[events_size].ki.wVk != 0x0000) {
events[events_size].type = INPUT_KEYBOARD;
events[events_size].ki.dwFlags = KEYEVENTF_KEYUP; // |= KEYEVENTF_SCANCODE;
events[events_size].ki.wVk = scancode_to_keycode(event->data.keyboard.keycode);
events[events_size].ki.wScan = 0; // event->data.keyboard.keycode;
events[events_size].ki.time = 0; // GetSystemTime()
events_size++;
}
else {
logger(LOG_LEVEL_INFO, "%s [%u]: Unable to lookup scancode: %li\n",
__FUNCTION__, __LINE__,
event->data.keyboard.keycode);
}
break;
case EVENT_MOUSE_PRESSED:
events[events_size].type = INPUT_MOUSE;
events[events_size].mi.dwFlags = MOUSEEVENTF_XDOWN;
switch (event->data.mouse.button) {
case MOUSE_BUTTON1:
events[events_size].mi.dwFlags = MOUSEEVENTF_LEFTDOWN;
break;
case MOUSE_BUTTON2:
events[events_size].mi.dwFlags = MOUSEEVENTF_RIGHTDOWN;
break;
case MOUSE_BUTTON3:
events[events_size].mi.dwFlags = MOUSEEVENTF_MIDDLEDOWN;
break;
case MOUSE_BUTTON4:
events[events_size].mi.mouseData = XBUTTON1;
break;
case MOUSE_BUTTON5:
events[events_size].mi.mouseData = XBUTTON2;
break;
default:
// Extra buttons.
if (event->data.mouse.button > 3) {
events[events_size].mi.mouseData = event->data.mouse.button - 3;
}
}
events[events_size].mi.dx = event->data.mouse.x * (MAX_WINDOWS_COORD_VALUE / screen_width) + 1;
events[events_size].mi.dy = event->data.mouse.y * (MAX_WINDOWS_COORD_VALUE / screen_height) + 1;
events[events_size].mi.dwFlags |= MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
events[events_size].mi.time = 0; // GetSystemTime()
events_size++;
break;
case EVENT_MOUSE_RELEASED:
events[events_size].type = INPUT_MOUSE;
events[events_size].mi.dwFlags = MOUSEEVENTF_XUP;
switch (event->data.mouse.button) {
case MOUSE_BUTTON1:
events[events_size].mi.dwFlags = MOUSEEVENTF_LEFTUP;
break;
case MOUSE_BUTTON2:
events[events_size].mi.dwFlags = MOUSEEVENTF_RIGHTUP;
break;
case MOUSE_BUTTON3:
events[events_size].mi.dwFlags = MOUSEEVENTF_MIDDLEUP;
break;
case MOUSE_BUTTON4:
events[events_size].mi.mouseData = XBUTTON1;
break;
case MOUSE_BUTTON5:
events[events_size].mi.mouseData = XBUTTON2;
break;
default:
// Extra buttons.
if (event->data.mouse.button > 3) {
events[events_size].mi.mouseData = event->data.mouse.button - 3;
}
}
events[events_size].mi.dx = event->data.mouse.x * (MAX_WINDOWS_COORD_VALUE / screen_width) + 1;
events[events_size].mi.dy = event->data.mouse.y * (MAX_WINDOWS_COORD_VALUE / screen_height) + 1;
events[events_size].mi.dwFlags |= MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
events[events_size].mi.time = 0; // GetSystemTime()
events_size++;
break;
case EVENT_MOUSE_WHEEL:
events[events_size].type = INPUT_MOUSE;
events[events_size].mi.dwFlags = MOUSEEVENTF_WHEEL;
// type, amount and rotation?
events[events_size].mi.mouseData = event->data.wheel.amount * event->data.wheel.rotation * WHEEL_DELTA;
events[events_size].mi.dx = event->data.wheel.x * (MAX_WINDOWS_COORD_VALUE / screen_width) + 1;
events[events_size].mi.dy = event->data.wheel.y * (MAX_WINDOWS_COORD_VALUE / screen_height) + 1;
events[events_size].mi.dwFlags |= MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
events[events_size].mi.time = 0; // GetSystemTime()
events_size++;
break;
case EVENT_MOUSE_DRAGGED:
// The button masks are all applied with the modifier masks.
case EVENT_MOUSE_MOVED:
events[events_size].type = INPUT_MOUSE;
events[events_size].mi.dwFlags = MOUSEEVENTF_MOVE;
events[events_size].mi.dx = event->data.mouse.x * (MAX_WINDOWS_COORD_VALUE / screen_width) + 1;
events[events_size].mi.dy = event->data.mouse.y * (MAX_WINDOWS_COORD_VALUE / screen_height) + 1;
events[events_size].mi.dwFlags |= MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
events[events_size].mi.time = 0; // GetSystemTime()
events_size++;
break;
case EVENT_MOUSE_CLICKED:
case EVENT_KEY_TYPED:
// Ignore clicked and typed events.
case EVENT_HOOK_ENABLED:
case EVENT_HOOK_DISABLED:
// Ignore hook enabled / disabled events.
default:
// Ignore any other garbage.
logger(LOG_LEVEL_WARN, "%s [%u]: Ignoring post event type %#X\n",
__FUNCTION__, __LINE__, event->type);
break;
}
// Release the previously held modifier keys used to fake the event mask.
if (event->mask & (MASK_SHIFT | MASK_CTRL | MASK_META | MASK_ALT)) {
unsigned int i;
for (i = 0; i < sizeof(keymask_lookup) / sizeof(UINT); i++) {
if (event->mask & 1 << i) {
events[events_size].type = INPUT_KEYBOARD;
events[events_size].ki.wVk = keymask_lookup[i];
events[events_size].ki.dwFlags = KEYEVENTF_KEYUP;
events[events_size].ki.time = 0; // Use current system time.
events_size++;
}
}
}
if (event->mask & (MASK_BUTTON1 | MASK_BUTTON2 | MASK_BUTTON3 | MASK_BUTTON4 | MASK_BUTTON5)) {
events[events_size].type = INPUT_MOUSE;
events[events_size].mi.dx = 0; // Relative mouse movement due to
events[events_size].mi.dy = 0; // MOUSEEVENTF_ABSOLUTE not being set.
events[events_size].mi.mouseData = 0x00;
events[events_size].mi.time = 0; // Use current system time.
// If dwFlags does not contain MOUSEEVENTF_WHEEL, MOUSEEVENTF_XDOWN, or MOUSEEVENTF_XUP,
// then mouseData should be zero.
// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646273%28v=vs.85%29.aspx
if (event->mask & MASK_BUTTON1) {
events[events_size].mi.dwFlags |= MOUSEEVENTF_LEFTUP;
}
if (event->mask & MASK_BUTTON2) {
events[events_size].mi.dwFlags |= MOUSEEVENTF_RIGHTUP;
}
if (event->mask & MASK_BUTTON3) {
events[events_size].mi.dwFlags |= MOUSEEVENTF_MIDDLEUP;
}
if (event->mask & MASK_BUTTON4) {
events[events_size].mi.mouseData = XBUTTON1;
events[events_size].mi.dwFlags |= MOUSEEVENTF_XUP;
}
if (event->mask & MASK_BUTTON5) {
events[events_size].mi.mouseData = XBUTTON2;
events[events_size].mi.dwFlags |= MOUSEEVENTF_XUP;
}
events_size++;
}
// Create the key release input
// memcpy(key_events + 1, key_events, sizeof(INPUT));
// key_events[1].ki.dwFlags |= KEYEVENTF_KEYUP;
if (! SendInput(events_size, events, sizeof(INPUT)) ) {
logger(LOG_LEVEL_ERROR, "%s [%u]: SendInput() failed! (%#lX)\n",
__FUNCTION__, __LINE__, (unsigned long) GetLastError());
}
free(events);
}