IIXC_Page::UnlockPageBlock Method

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== See Also ==
 
== See Also ==
See also [[PXV:IIXC_Page|IIXC_Page]].
+
:[[PXV:IIXC_Page|IIXC_Page]].
 +
:[[PXV:IIXC_Page_LockPageBlock|IIXC_Page::LockPageBlock]]
 +
:[[PXV:IXC_PageBlockData|IXC_PageBlockData]]

Revision as of 04:09, 7 May 2015


The method unlocks a portion of the page that was previously locked by a call to IIXC_Page::LockPageBlock.

Syntax

HRESULT UnlockPageBlock([in]  IXC_PageBlockData*  pBlockData);

Parameters

pBlockData
[in] Pointer to IXC_PageBlockData structure that was previously passed to IIXC_Page::LockPageBlock.

Return Value

Returns S_OK if operation was successful or error code in other cases.

Remarks

IIXC_Page::LockPageBlock and IIXC_Page::UnlockPageBlock must be used as a pair. A call to the IIXC_Page::LockPageBlock function of the page establishes a temporary buffer that you can use to read or write pixel data. After you write to the temporary buffer, a call to IIXC_Page::UnlockPageBlock copies the pixel data in the buffer to the page.

See Also

IIXC_Page.
IIXC_Page::LockPageBlock
IXC_PageBlockData