public Display(Application application, WinApi.WndProc proc, DisplayStyle style)
{
m_application = application;
m_instance = WinApi.GetModuleHandle(null);
m_windowProc = new WinApi.WndProc(proc);
m_className = "GRANITE_" + Guid.NewGuid().ToString("N");
WinApi.WindowClass wc = new WinApi.WindowClass()
{
style = WinApi.CS_OWNDC | WinApi.CS_VREDRAW | WinApi.CS_HREDRAW,
windowProcedure = Marshal.GetFunctionPointerForDelegate(m_windowProc),
instance = m_instance,
cursor = WinApi.LoadCursor(IntPtr.Zero, WinApi.IDC_ARROW),
className = m_className
};
WinApi.RegisterClass(ref wc);
uint s = WinApi.WS_POPUP;
switch (style)
{
case DisplayStyle.Fixed:
s = WinApi.WS_BORDER;
break;
case DisplayStyle.FixedWithTitle:
s = WinApi.WS_CAPTION | WinApi.WS_SYSMENU;
break;
case DisplayStyle.Resizeable:
s = WinApi.WS_POPUP | WinApi.WS_THICKFRAME;
break;
case DisplayStyle.ResizeableWithTitle:
s |= WinApi.WS_CAPTION | WinApi.WS_SYSMENU | WinApi.WS_THICKFRAME | WinApi.WS_MINIMIZEBOX | WinApi.WS_MAXIMIZEBOX;
break;
}
m_handle = WinApi.CreateWindowEx(
0,
m_className,
"",
s,
0, 0, 800, 600,
IntPtr.Zero, IntPtr.Zero,
m_instance, IntPtr.Zero
);
m_deviceContext = WinApi.GetDC(m_handle);
}
public void SetCursor(Cursor cursor)
{
if (cursor == Cursor.None)
{
WinApi.SetCursor(IntPtr.Zero);
WinApi.SetClassLong(m_handle, WinApi.GCL_HCURSOR, 0);
}
else
{
var c = WinApi.LoadCursor(IntPtr.Zero, (uint)cursor);
WinApi.SetCursor(c);
WinApi.SetClassLong(m_handle, WinApi.GCL_HCURSOR, (uint)c);
}
}