◆ Begin()

unsafe void Microsoft.Xna.Framework.Graphics.OcclusionQuery.Begin ( )

inline

Definition at line 111 of file OcclusionQuery.cs.

    {
        if (_isInBeginEndPair)
        {
            throw new InvalidOperationException(FrameworkResources.EndMustBeCalledBeforeBegin);
        }
        if (!_hasIsCompleteBeenQueried)
        {
            throw new InvalidOperationException(FrameworkResources.IsCompleteMustBeCalled);
        }
        IDirect3DQuery9* ptr = pComPtr;
        int num = ((delegate* unmanaged[Stdcall, Stdcall]<IntPtr, uint, int>)(int)(*(uint*)(*(int*)ptr + 24)))((nint)ptr, 2u);
        if (num < 0)
        {
            throw GraphicsHelpers.GetExceptionFromResult((uint)num);
        }
        _isAvailable = false;
        _isInBeginEndPair = true;
        _hasCalledBegin = true;
        _hasIsCompleteBeenQueried = false;
    }