IAsyncOperation::GetAsyncMode method
Called by a drop target to determine whether the data object supports asynchronous data extraction.
Syntax
HRESULT GetAsyncMode( [out] BOOL *pfIsOpAsync );
Parameters
- pfIsOpAsync [out]
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Type: BOOL*
A Boolean value that is set to VARIANT_TRUE to indicate that an asynchronous operation is supported, or VARIANT_FALSE otherwise.
Return value
Type: HRESULT
Returns S_OK if successful or a COM error value otherwise.
Remarks
The purpose of this method is to give the drop target the value of the IAsyncOperation::SetAsyncMode method's fDoOpAsync parameter. This parameter is set to VARIANT_FALSE by default. If the data object supports asynchronous data extraction, it must call IAsyncOperation::SetAsyncMode and set fDoOpAsync to VARIANT_TRUE.
Requirements
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Minimum supported client |
Windows 2000 Professional, Windows XP [desktop apps only] |
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Minimum supported server |
Windows Server 2003 [desktop apps only] |
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Header |
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IDL |
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DLL |
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See also