local key = require 'vkeys'
local ffi = require 'ffi'
ffi.cdef[[
    typedef unsigned long DWORD;

    struct d3ddeviceVTBL {
        void *QueryInterface;
        void *AddRef;
        void *Release;
        void *TestCooperativeLevel;
        void *GetAvailableTextureMem;
        void *EvictManagedResources;
        void *GetDirect3D;
        void *GetDeviceCaps;
        void *GetDisplayMode;
        void *GetCreationParameters;
        void *SetCursorProperties;
        void *SetCursorPosition;
        void *ShowCursor;
        void *CreateAdditionalSwapChain;
        void *GetSwapChain;
        void *GetNumberOfSwapChains;
        void *Reset;
        void *Present;
        void *GetBackBuffer;
        void *GetRasterStatus;
        void *SetDialogBoxMode;
        void *SetGammaRamp;
        void *GetGammaRamp;
        void *CreateTexture;
        void *CreateVolumeTexture;
        void *CreateCubeTexture;
        void *CreateVertexBuffer;
        void *CreateIndexBuffer;
        void *CreateRenderTarget;
        void *CreateDepthStencilSurface;
        void *UpdateSurface;
        void *UpdateTexture;
        void *GetRenderTargetData;
        void *GetFrontBufferData;
        void *StretchRect;
        void *ColorFill;
        void *CreateOffscreenPlainSurface;
        void *SetRenderTarget;
        void *GetRenderTarget;
        void *SetDepthStencilSurface;
        void *GetDepthStencilSurface;
        void *BeginScene;
        void *EndScene;
        void *Clear;
        void *SetTransform;
        void *GetTransform;
        void *MultiplyTransform;
        void *SetViewport;
        void *GetViewport;
        void *SetMaterial;
        void *GetMaterial;
        void *SetLight;
        void *GetLight;
        void *LightEnable;
        void *GetLightEnable;
        void *SetClipPlane;
        void *GetClipPlane;
        void *SetRenderState;
        void *GetRenderState;
        void *CreateStateBlock;
        void *BeginStateBlock;
        void *EndStateBlock;
        void *SetClipStatus;
        void *GetClipStatus;
        void *GetTexture;
        void *SetTexture;
        void *GetTextureStageState;
        void *SetTextureStageState;
        void *GetSamplerState;
        void *SetSamplerState;
        void *ValidateDevice;
        void *SetPaletteEntries;
        void *GetPaletteEntries;
        void *SetCurrentTexturePalette;
        void *GetCurrentTexturePalette;
        void *SetScissorRect;
        void *GetScissorRect;
        void *SetSoftwareVertexProcessing;
        void *GetSoftwareVertexProcessing;
        void *SetNPatchMode;
        void *GetNPatchMode;
        void *DrawPrimitive;
        void* DrawIndexedPrimitive;
        void *DrawPrimitiveUP;
        void *DrawIndexedPrimitiveUP;
        void *ProcessVertices;
        void *CreateVertexDeclaration;
        void *SetVertexDeclaration;
        void *GetVertexDeclaration;
        void *SetFVF;
        void *GetFVF;
        void *CreateVertexShader;
        void *SetVertexShader;
        void *GetVertexShader;
        void *SetVertexShaderConstantF;
        void *GetVertexShaderConstantF;
        void *SetVertexShaderConstantI;
        void *GetVertexShaderConstantI;
        void *SetVertexShaderConstantB;
        void *GetVertexShaderConstantB;
        void *SetStreamSource;
        void *GetStreamSource;
        void *SetStreamSourceFreq;
        void *GetStreamSourceFreq;
        void *SetIndices;
        void *GetIndices;
        void *CreatePixelShader;
        void *SetPixelShader;
        void *GetPixelShader;
        void *SetPixelShaderConstantF;
        void *GetPixelShaderConstantF;
        void *SetPixelShaderConstantI;
        void *GetPixelShaderConstantI;
        void *SetPixelShaderConstantB;
        void *GetPixelShaderConstantB;
        void *DrawRectPatch;
        void *DrawTriPatch;
        void *DeletePatch;
    };

    struct d3ddevice {
        struct d3ddeviceVTBL** vtbl;
    };
    
    struct RECT {
        long left;
        long top;
        long right;
        long bottom;
    };
    
    struct POINT {
        long x;
        long y;
    };
    
    int __stdcall GetSystemMetrics(
      int nIndex
    );
    
    int __stdcall GetClientRect(
        int   hWnd,
        struct RECT* lpRect
    );
    
    int __stdcall ClientToScreen(
        int    hWnd,
        struct POINT* lpPoint
    );
    
    int __stdcall D3DXSaveSurfaceToFileA(
        const char*          pDestFile,
        int DestFormat,
        void*       pSrcSurface,
        void*        pSrcPalette,
        struct RECT                 *pSrcRect
    );
]]
local d3dx9_43 = ffi.load('d3dx9_43.dll')

function main()
    sampRegisterChatCommand("mycmd", cmd_mycmd)
    wait(-1)
end

function cmd_mycmd(arg)
    local pDevice = ffi.cast("struct d3ddevice*", 0xC97C28)
    local CreateOffscreenPlainSurface =  ffi.cast("long(__stdcall*)(void*, unsigned long, unsigned long, unsigned long, unsigned long, void**, void*)", pDevice.vtbl[0].CreateOffscreenPlainSurface)
    local GetFrontBufferData =  ffi.cast("long(__stdcall*)(void*, unsigned long, void*)", pDevice.vtbl[0].GetFrontBufferData)
    local pSurface = ffi.cast("void**", ffi.new('unsigned long[1]'))
    local sx = ffi.C.GetSystemMetrics(0);
    local sy = ffi.C.GetSystemMetrics(1);
    CreateOffscreenPlainSurface(pDevice, sx, sy, 21, 3, pSurface, ffi.cast("void*", 0))
    if GetFrontBufferData(pDevice, 0, pSurface[0]) < 0 then
        print("Screenshot cannot be created")
    else
        local Point = ffi.new("struct POINT[1]")
        local Rect = ffi.new("struct RECT[1]")
        local HWND = ffi.cast("int*", 0xC97C1C)[0]
        ffi.C.ClientToScreen(HWND, Point)
        ffi.C.GetClientRect(HWND, Rect)
        Rect[0].left = Rect[0].left + Point[0].x
        Rect[0].right = Rect[0].right + Point[0].x
        Rect[0].top = Rect[0].top + Point[0].y
        Rect[0].bottom = Rect[0].bottom + Point[0].y
        d3dx9_43.D3DXSaveSurfaceToFileA("filename.png", 3, pSurface[0], ffi.cast("void*", 0), Rect) -- second parameter(3) is D3DXIMAGE_FILEFORMAT, checkout https://docs.microsoft.com/en-us/windows/win32/direct3d9/d3dximage-fileformat
    end
end

используя этот пример напиши вызов для


// 0x4341C0
void CCarCtrl::GenerateRandomCars() {
    ZoneScoped;

    plugin::Call<0x4341C0>();
}