IAMVfwCaptureDialogs::HasDialog method (strmif.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
The HasDialog method determines if the specified dialog box exists in the driver.
Syntax
HRESULT HasDialog(
[in] int iDialog
);
Parameters
[in] iDialog
Desired dialog box. This is a member of the VfwCaptureDialogs enumeration.
Return value
Returns S_OK if the driver contains the dialog box or S_FALSE otherwise.
Remarks
This method calls the Video for Windows videoDialog function to query for the existence of the appropriate dialog box.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |