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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Syntax
HRESULT GetAllGPRMs(
  [out] GPRMARRAY *pRegisterArray
);
Parameters
[out] pRegisterArray
Pointer to the retrieved array of general parameter registers.
Return value
Returns an HRESULT value.
| Return code | Description | 
|---|---|
  | 
DVD is not initialized or domain is not DVD_DOMAIN_Title. | 
  | 
Success. | 
  | 
Requested action is not supported on this domain (DVD_DOMAIN). | 
  | 
Requested action cannot occur at this point in the movie due to the authoring of the current DVD-Video disc. | 
Remarks
This method is valid in any domain. For more information, see DVD_DOMAIN.
Use of GPRMs is title specific. GPRMs are general parameter registers. For an explanation of GPRMs, see the DVD specifications.
Requirements
| Requirement | Value | 
|---|---|
| Target Platform | Windows | 
| Header | strmif.h (include Dshow.h) |