public void ManualPresentHook(IntPtr swapChainPtr)
{
DebugMessage("ManualPresentHook Method start");
SwapChain swapChain = (SharpDX.DXGI.SwapChain)swapChainPtr;
if (swapChainPtr != IntPtr.Zero)
{
try
{
DebugMessage("ManualPresentHook:1");
#region Draw overlay (after screenshot so we don't capture overlay as well)
#region Initialise Overlay Engine
if (_swapChainPointer != swapChain.NativePointer || OverlayEngine == null)
{
DebugMessage("ManualPresentHook:2");
NewSwapchain = true;
List <IOverlayElement> oldOverlays = null;
if (OverlayEngine != null)
{
DebugMessage("ManualPresentHook:3");
if (OverlayEngine.Overlays.Count > 0 && OverlayEngine.Overlays[0].Elements != null)
{
DebugMessage("ManualPresentHook:4");
oldOverlays = new List <IOverlayElement>(OverlayEngine.Overlays[0].Elements);
foreach (var element in oldOverlays)
{
if (element is ImageElement)
{
DebugMessage("ManualPresentHook:5");
((ImageElement)element).Image?.Dispose();
((ImageElement)element).Image = null;
}
}
}
OverlayEngine.Dispose();
}
DebugMessage("ManualPresentHook:6");
OverlayEngine = new DX11.DXOverlayEngine(this);
OverlayEngine.Overlays = new List <IOverlay>();
OverlayEngine.Overlays.Add(new Overlay());
OverlayEngine.Overlays.Add(new Overlay());
DebugMessage("ManualPresentHook:7");
if (oldOverlays != null)
{
DebugMessage("ManualPresentHook:8");
OverlayEngine.Overlays[0].Elements = oldOverlays;
}
DebugMessage("ManualPresentHook:9");
if (ObligatoryElement != null)
{
DebugMessage("ManualPresentHook:10");
OverlayEngine.Overlays[0].Elements.Add(ObligatoryElement);
}
DebugMessage("ManualPresentHook:11");
OverlayEngine.Initialise(swapChain);
DebugMessage("ManualPresentHook:12");
_swapChainPointer = swapChain.NativePointer;
}
#endregion
// ---LOOP---
// Draw Overlay(s)
if (OverlayEngine != null)
{
DebugMessage("ManualPresentHook:13");
foreach (var overlay in OverlayEngine.Overlays)
{
overlay.Frame();
}
OverlayEngine.Draw();
DebugMessage("ManualPresentHook:14");
}
// ---LOOP---
#endregion
}
catch (Exception e)
{
// If there is an error we do not want to crash the hooked application, so swallow the exception
LogManager.DebugLog("PresentHook: Exeception: " + e.GetType().FullName + ": " + e.ToString());
LogManager.LogException(e, "PresentHook");
//return unchecked((int)0x8000FFFF); //E_UNEXPECTED
}
}
}
/// <summary>
/// Our present hook that will grab a copy of the backbuffer when requested. Note: this supports multi-sampling (anti-aliasing)
/// </summary>
/// <param name="swapChainPtr"></param>
/// <param name="syncInterval"></param>
/// <param name="flags"></param>
/// <returns>The HRESULT of the original method</returns>
int PresentHook(IntPtr swapChainPtr, int syncInterval, SharpDX.DXGI.PresentFlags flags)
{
DebugMessage("PresentHook");
SwapChain swapChain = (SharpDX.DXGI.SwapChain)swapChainPtr;
if (swapChainPtr != IntPtr.Zero)
{
try
{
#region Draw overlay (after screenshot so we don't capture overlay as well)
// Initialise Overlay Engine
if (_swapChainPointer != swapChain.NativePointer || OverlayEngine == null)
{
NewSwapchain = true;
if (OverlayEngine != null)
{
OverlayEngine.Dispose();
}
OverlayEngine = new DX11.DXOverlayEngine(this);
OverlayEngine.Overlays.Add(new DirectXHook.Hook.Common.Overlay
{
Elements =
{
new Common.TextElement(new System.Drawing.Font("Times New Roman", 22))
{
Text = "*",
Location = new System.Drawing.Point(0, 0),
Color = System.Drawing.Color.Red,
AntiAliased = false
},
new Common.ImageElement(new Bitmap(Width, Height))
{
Location = new System.Drawing.Point(0, 0)
},
}
});
OverlayEngine.Initialise(swapChain);
_swapChainPointer = swapChain.NativePointer;
}
// Draw Overlay(s)
if (OverlayEngine != null)
{
foreach (var overlay in OverlayEngine.Overlays)
{
overlay.Frame();
}
OverlayEngine.Draw();
}
#endregion
}
catch (Exception e)
{
// If there is an error we do not want to crash the hooked application, so swallow the exception
LogManager.DebugLog("PresentHook: Exeception: " + e.GetType().FullName + ": " + e.ToString());
LogManager.LogException(e, "PresentHook");
//return unchecked((int)0x8000FFFF); //E_UNEXPECTED
}
}
// As always we need to call the original method, note that EasyHook will automatically skip the hook and call the original method
// i.e. calling it here will not cause a stack overflow into this function
return(DXGISwapChain_PresentHook.Original(swapChainPtr, syncInterval, flags));
}