keybind.h

#include <WinUser.h>
#include <string>
#include <string.h>
#include <processthreadsapi.h>

#define IM_ARRAYSIZE(_ARR)          ((int)(sizeof(_ARR)/sizeof(*_ARR)))

namespace hotkeys
{
	int aimkey;
	int airstuckey;
}

static int keystatus = 0;
static int realkey = 0;

bool GetKey(int key)
{
	realkey = key;
	return true;
}
void ChangeKey(void* blank)
{
	keystatus = 1;
	while (true)
	{
		for (int i = 0; i < 0x87; i++)
		{
			if (GetKeyState(i) & 0x8000)
			{
				hotkeys::aimkey = i;
				keystatus = 0;
				return;
			}
		}
	}
}


static const char* keyNames[] =
{
	"No Key Selected",
	"Left Mouse",
	"Right Mouse",
	"Cancel",
	"Middle Mouse",
	"Mouse 5",
	"Mouse 4",
	"No Key Selected",
	"Backspace",
	"Tab",
	"No Key Selected",
	"Clear",
	"Enter",
	"No Key Selected",
	"Shift",
	"Control",
	"Alt",
	"Pause",
	"Caps",
	"No Key Selected",
	"Escape",
	"No Key Selected",
	"Space",
	"Page Up",
	"Page Down",
	"End",
	"Home",
	"Left",
	"Up",
	"Right",
	"Down",
	"No Key Selected",
	"Print",
	"Insert",
	"Delete",
	"No Key Selected",
	"0",
	"1",
	"2",
	"3",
	"4",
	"5",
	"6",
	"7",
	"8",
	"9",
	"No Key Selected",
	"A",
	"B",
	"C",
	"D",
	"E",
	"F",
	"G",
	"H",
	"I",
	"J",
	"K",
	"L",
	"M",
	"N",
	"O",
	"P",
	"Q",
	"R",
	"S",
	"T",
	"U",
	"V",
	"W",
	"X",
	"Y",
	"Z",
	"No Key Selected",
	"No Key Selected",
	"Numpad 0",
	"Numpad 1",
	"Numpad 2",
	"Numpad 3",
	"Numpad 4",
	"Numpad 5",
	"Numpad 6",
	"Numpad 7",
	"Numpad 8",
	"Numpad 9",
	"Multiply",
	"Add",
	"No Key Selected",
	"Subtract",
	"Decimal",
	"Divide",
	"F1",
	"F2",
	"F3",
	"F4",
	"F5",
	"F6",
	"F7",
	"F8",
	"F9",
	"F10",
	"F11",
	"F12",
};

static bool Items_ArrayGetter(void* data, int idx, const char** out_text)
{
	const char* const* items = (const char* const*)data;
	if (out_text)
		*out_text = items[idx];
	return true;
}
void HotkeyButton(int aimkey, void* changekey, int status)
{
	const char* preview_value = NULL;
	if (aimkey >= 0 && aimkey < IM_ARRAYSIZE(keyNames))
		Items_ArrayGetter(keyNames, aimkey, &preview_value);

	std::string aimkeys;
	if (preview_value == NULL)
		aimkeys = "Select Key";
	else
		aimkeys = preview_value;

	if (status == 1)
	{
		aimkeys = "Press the key";
	}
	if (ImGui::Button(aimkeys.c_str(), ImVec2(125, 20)))
	{
		if (status == 0)
		{
			CreateThread(0, 0, (LPTHREAD_START_ROUTINE)changekey, nullptr, 0, nullptr);
		}
	}
}