IDirect3DSurface9::ReleaseDC method (d3d9helper.h)

Release a device context handle.

Syntax

HRESULT ReleaseDC(
  [in] HDC hdc
);

[in] hdc

Type: HDC

Handle to a device context.

Type: HRESULT

If the method succeeds, the return value is D3D_OK. D3DERR_INVALIDCALL is returned if the argument is invalid.

An hdc is a Windows resource. It must be released after use so Windows can return it to the pool of available resources.

This method will release only the device context returned by IDirect3DSurface9::GetDC. Otherwise, this method will fail.