// written by prest0n

#include <stdio.h>
#include <windows.h>

////////////////////////////////////////////////////////////////////////
////////////////////////// configuration area //////////////////////////
////////////////////////////////////////////////////////////////////////

bool use_alt = TRUE; // require alt to be held down when using a hotkey?

#define volume_up 'A' // key to use for volume up
#define volume_down 'Z' // key to use for volume down
#define volume_mute 'C' // key to use for muting

#define next_song '2' // key to use for next song
#define prev_song '1' // key to use for previous song
#define pause_song '3' // key to use for play/pause

#define hotkey_toggle 'H' // the key to use to disable/enable the program

bool volume_sound_use = TRUE; // use a sound for changing volume?
#define volume_sound "dsfargeg" // if the above is true, what sound should be played
bool hotkey_sound_use = TRUE; // use a sound for toggling hotkeys?
#define hotkey_sound "C:\\Windows\\Media\\notify.wav" // if the above is true, what sound should be played

bool debug = FALSE; // debug mode anyone?

//////////////////////////////////////////////////////////////////////
///////////////////////// do not edit below //////////////////////////
//////////////////////////////////////////////////////////////////////

// for some reason, it wouldnt define these in winuser.h so i just copy pasted
#define VK_VOLUME_MUTE         0xAD
#define VK_VOLUME_DOWN         0xAE
#define VK_VOLUME_UP           0xAF
#define VK_MEDIA_NEXT_TRACK    0xB0
#define VK_MEDIA_PREV_TRACK    0xB1
#define VK_MEDIA_STOP          0xB2
#define VK_MEDIA_PLAY_PAUSE    0xB3

bool hotkey_enabled = TRUE;

// hehe..
#define KEYSTATE(vk) ((GetAsyncKeyState(vk) & 0x8000) ? TRUE : FALSE)

int main()
{
	if (!debug) FreeConsole();
	while(1)
	{
		if ((KEYSTATE(VK_LMENU) == TRUE) || (!use_alt))
		{
			if (hotkey_enabled == TRUE)
			{
				if (KEYSTATE(volume_up) == TRUE)
				{
					if (debug) printf("volume up\n");
					keybd_event(VK_VOLUME_UP, 0xE9, 0, 0);
					if (volume_sound_use) PlaySound(volume_sound, NULL, SND_ASYNC);
				}
	
				if (KEYSTATE(volume_down) == TRUE)
				{
					if (debug) printf("volume down\n");
					keybd_event(VK_VOLUME_DOWN, 0xE9, 0, 0);
					if (volume_sound_use) PlaySound(volume_sound, NULL, SND_ASYNC);
				}
	
				if (KEYSTATE(volume_mute) == TRUE)
				{
					if (debug) printf("volume mute\n");
					keybd_event(VK_VOLUME_MUTE, 0xE9, 0, 0);
					Sleep(500); // to prevent you from pressing it repeatedly *accidentally*
				}
	
				if (KEYSTATE(pause_song) == TRUE)
				{
					if (debug) printf("pause or play song\n");
					keybd_event(VK_MEDIA_PLAY_PAUSE, 0xE9, 0, 0);
					Sleep(500); // to prevent you from pressing it repeatedly *accidentally*
				}
	
				if (KEYSTATE(next_song) == TRUE)
				{
					if (debug) printf("next song\n");
					keybd_event(VK_MEDIA_NEXT_TRACK, 0xE9, 0, 0);
					Sleep(500); // to prevent you from pressing it repeatedly *accidentally*
				}
	
				if (KEYSTATE(prev_song) == TRUE)
				{
					if (debug) printf("previous song\n");
					keybd_event(VK_MEDIA_PREV_TRACK, 0xE9, 0, 0);
					Sleep(500); // to prevent you from pressing it repeatedly *accidentally*
				}
			}

			if (KEYSTATE(hotkey_toggle) == TRUE)
			{
				if (debug) printf("hotkey toggled\n");
				hotkey_enabled = !hotkey_enabled;
				if (hotkey_sound_use) PlaySound(hotkey_sound, NULL, SND_ASYNC);
				Sleep(500);
			}

		}

		Sleep(100);
	}
}