CMediaType::IsValid (Windows CE 5.0)
Queries whether the object has a valid major type.
BOOL IsValid( ) const;
Parameters
None.
Return Values
Returns one of the following values.
| Value | Description |
|---|---|
| TRUE | CMediaType object has a valid major type. |
| FALSE | CMediaType object does not have a valid major type. |
Remarks
When CMediaType objects are constructed, their GUIDs are initialized with GUID_NULL (unless they are constructed based on another AM_MEDIA_TYPE structure or CMediaType object).
This member function is useful for discovering if the object has been correctly initialized.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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