DwmUnregisterThumbnail function
Removes a Desktop Window Manager (DWM) thumbnail relationship created by the DwmRegisterThumbnail function.
Syntax
HRESULT WINAPI DwmUnregisterThumbnail( HTHUMBNAIL hThumbnailId );
Parameters
- hThumbnailId
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The handle to the thumbnail relationship to be removed. Null or non-existent handles will result in a return value of E_INVALIDARG.
Return value
If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
Unregistering DWM thumbnail relationships must be done within the process that registered the relationships.
Requirements
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Minimum supported client |
Windows Vista [desktop apps only] |
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Minimum supported server |
Windows Server 2008 [desktop apps only] |
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Header |
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Library |
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DLL |
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See also
- Desktop Window Manager Overview
- DWM Thumbnail Overview
- DwmUpdateThumbnailProperties
- DwmQueryThumbnailSourceSize