Method WndProcHandler

src/dll/menu.cpp:38–129

Our custom window handler to override A:I's own handler. This lets us detect keyboard inputs and pass mouse + keyboard input control to ImGui.

// Our custom window handler to override A:I's own handler.
// This lets us detect keyboard inputs and pass mouse + keyboard input control to ImGui.
LRESULT CALLBACK Menu::WndProcHandler(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    ImGuiIO &io = ImGui::GetIO();
    if (uMsg == WM_KEYDOWN)
    {
        if (wParam == VK_DELETE)
        {
            g_showMenu = !g_showMenu;

            if (g_showMenu)
            {
                ClipCursor(NULL);
                ShowCursor(true);
            }
            else
            {
                RECT windowRect;
                GetClientRect(hWnd, &windowRect);
                MapWindowPoints(hWnd, NULL, reinterpret_cast<LPPOINT>(&windowRect), 2);
                ClipCursor(&windowRect);
                ShowCursor(false);
            }

            return true;
        }
    }

    if (g_showMenu)
    {
        switch (uMsg)
        {
        case WM_LBUTTONDOWN:
            io.MouseDown[0] = true;
            return true;
        case WM_LBUTTONUP:
            io.MouseDown[0] = false;
            return true;
        case WM_RBUTTONDOWN:
            io.MouseDown[1] = true;
            return true;
        case WM_RBUTTONUP:
            io.MouseDown[1] = false;
            return true;
        case WM_MBUTTONDOWN:
            io.MouseDown[2] = true;
            return true;
        case WM_MBUTTONUP:
            io.MouseDown[2] = false;
            return true;
        case WM_XBUTTONDOWN:
            if ((GET_KEYSTATE_WPARAM(wParam) & MK_XBUTTON1) == MK_XBUTTON1)
                io.MouseDown[3] = true;
            else if ((GET_KEYSTATE_WPARAM(wParam) & MK_XBUTTON2) == MK_XBUTTON2)
                io.MouseDown[4] = true;
            return true;
        case WM_XBUTTONUP:
            if ((GET_KEYSTATE_WPARAM(wParam) & MK_XBUTTON1) == MK_XBUTTON1)
                io.MouseDown[3] = false;