ImGui Library Support

[Mali 61380]

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 Library:

Spoiler

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 (v1.92.3-docking)

 

Edited September 24, 2025 by Mali

[Bughy 7]

Aight, that's dope. Thanks for sharing that, is a good start

[shenhui1986 14]

This should be able to create cheating plugins, right

[Mali 61380]

UPDATE:

• DirectX 8 Support.
• WantCaptureMouse, WantCaptureKeyboard fixes.

 

 

Known Problems:

• Directx 8 doesn't support D3DRS_SCISSORTESTENABLE.
• You cannot take Imgui off screen in DirectX 8 version.

Edited December 17, 2023 by Mali

[CORKY 1829]

Wanted to point out that on device reset, you might get your whole client frozen. That happens because the imgui's objects aren't invalidated & created again.

To fix it, use Imgui's own implementations inside CGraphicDevice::Reset:

 

bool CGraphicDevice::Reset()
{
	HRESULT hr;
	if (FAILED(hr = ms_lpd3dDevice->TestCooperativeLevel()))
	{
		if (hr == D3DERR_DEVICELOST)
			return false;
		
		if (hr == D3DERR_DEVICENOTRESET)
		{
			__DestroyPDTVertexBufferList();
			ImGui_ImplDX9_InvalidateDeviceObjects();
			
			if (FAILED(hr = ms_lpd3dDevice->Reset(&ms_d3dPresentParameter))) {
				TraceError("Failed to reset device");
				return false;
			}
			
			m_pStateManager->SetDefaultState();
			if (!__CreatePDTVertexBufferList())
				return false;
			
			ImGui_ImplDX9_CreateDeviceObjects();
		}
	}
	
	return true;
}

Don't forget to include imgui.h and imgui_impl_dx9.h (or imgui_impl_dx8.h depending on what you're using)

Edited December 17, 2023 by dumita123

[Mali 61380]

UPDATE:

•   Device reset fix @dumita123 & @ masodikbela

[Kaptan Yosun 863]

Hi Mali, first of all, this is super cool, thank you. I noticed a problem with this.

If you click on ImGui window, you can't open ESC menu on Release client or directly close the game on Debug client using the X button of Metin2 window anymore.

[Kaptan Yosun 863]

Could someone please share some example menus and buttons? It would help code illiterates like me a ton to create new functionality. 

[Mali 61380]

It became very popular, it used a lot (It's not nice to remove my name from the credits )

UPDATE:

• v1.89.9 WIP -> v1.92.3 
• Thanks to ChatGPT for imgui_impl_dx8 (DirectX-9+ is still highly recommended)

 

[KoMaR1911 813]

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Here is dx8 implementation for imgui for dx8

[Mali 61380]

6 hours ago, KoMaR1911 said:

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Here is dx8 implementation for imgui for dx8

This is old

[Kaptan Yosun 863]

On 2/2/2024 at 11:30 PM, Kaptan Yosun said:

Hi Mali, first of all, this is super cool, thank you. I noticed a problem with this.

If you click on ImGui window, you can't open ESC menu on Release client or directly close the game on Debug client using the X button of Metin2 window anymore.

Fix:
// Edited again, we just need to change the order the logic

We’re capturing the mouse before checking ImGui, so when ImGui consumes the click, capture is never released, breaking the title bar close button.

Find

		case WM_LBUTTONDOWN:
#ifdef __BL_IMGUI__
			if (GetCapture() != hWnd)
				SafeSetCapture();
			
			if (ImGui::GetIO().WantCaptureMouse)
				return 0;
#else
			SafeSetCapture();
#endif

Change

		case WM_LBUTTONDOWN:
#ifdef __BL_IMGUI__
            if (ImGui::GetIO().WantCaptureMouse)
                return 0;

            if (GetCapture() != hWnd)
                SafeSetCapture();
#else
            SafeSetCapture();
#endif

 

Find

		case WM_LBUTTONUP:
#ifdef __BL_IMGUI__
			if (GetCapture() != hWnd)
				SafeSetCapture();
			
			if (ImGui::GetIO().WantCaptureMouse)
				return 0;
#endif

Change

		case WM_LBUTTONUP:
#ifdef __BL_IMGUI__
            if (ImGui::GetIO().WantCaptureMouse)
                return 0;

            if (GetCapture() != hWnd)
                SafeSetCapture();
#endif

 

Edited January 25 by Kaptan Yosun
Clarification

[mofo0467 0]

I will try it, nice