/// <summary>
/// Creates a DirectX 10 device and related device specific resources.
/// </summary>
/// <exception cref="InvalidOperationException">
/// A previous call to CreateResources has not been followed by a call to
/// <see cref="FreeResources" />.
/// </exception>
/// <exception cref="ObjectDisposedException">
/// <see cref="Dispose()" /> has been called on this instance.
/// </exception>
/// <exception cref="Microsoft.WindowsAPICodePack.DirectX.DirectXException">
/// Unable to create a DirectX 10 device or an error occured creating
/// device dependent resources.
/// </exception>
public void CreateResources()
{
MustNotDisposed();
if (_device != null)
{
throw new InvalidOperationException(
"A previous call to CreateResources has not been followed by a call to FreeResources.");
}
// Try to create a hardware device first and fall back to a
// software (WARP doens't let us share resources)
D3DDevice1 device1 = TryCreateDevice1(DriverType.Hardware);
if (device1 == null)
{
device1 = TryCreateDevice1(DriverType.Software);
if (device1 == null)
{
throw new DirectXException("Unable to create a DirectX 10 device.");
}
}
_device = device1.QueryInterface <D3DDevice>();
device1.Dispose();
}