IIXC_Page::UnlockPageBlock Method
From PDF XChange PDF SDK
| Line 21: | Line 21: | ||
== See Also == | == See Also == | ||
| − | + | :[[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.
