IIXC_Page::UnlockPageBlock Method

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{{#customTitle:IIXC_Page::UnlockPageBlock Method}}
 
{{#customTitle:IIXC_Page::UnlockPageBlock Method}}
 
{{#parentPage:PXV:IIXC_Page|UnlockPageBlock Method|method}}
 
{{#parentPage:PXV:IIXC_Page|UnlockPageBlock Method|method}}
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The method of interface of PDF-XChange Editor SDK.
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The method unlocks a portion of the page that was previously locked by a call to [[PXV:IIXC_Page_LockPageBlock|IIXC_Page::LockPageBlock]].
  
 
== Syntax ==
 
== Syntax ==
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== Parameters ==
 
== Parameters ==
 
;pBlockData
 
;pBlockData
:[in]  Pointer to [[PXV:IXC_PageBlockData|IXC_PageBlockData]].
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:[in]  Pointer to [[PXV:IXC_PageBlockData|IXC_PageBlockData]] structure that was previously passed to [[PXV:IIXC_Page_LockPageBlock|IIXC_Page::LockPageBlock]].
  
 
== Return Value ==
 
== Return Value ==
 
Returns S_OK if operation was successful or error code in other cases.
 
Returns S_OK if operation was successful or error code in other cases.
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== Remarks ==
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[[PXV:IIXC_Page_LockPageBlock|IIXC_Page::LockPageBlock]] and [[PXV:IIXC_Page_UnlockPageBlock|IIXC_Page::UnlockPageBlock]] must be used as a pair. A call to the [[PXV:IIXC_Page_LockPageBlock|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 [[PXV:IIXC_Page_UnlockPageBlock|IIXC_Page::UnlockPageBlock]] copies the pixel data in the buffer to the page.
  
 
== See Also ==
 
== See Also ==
 
See also [[PXV:IIXC_Page|IIXC_Page]].
 
See also [[PXV:IIXC_Page|IIXC_Page]].

Revision as of 04:07, 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

See also IIXC_Page.