BUG: GetObject Returns Partial Information for DIBSections (151072)
The information in this article applies to:
- Microsoft Win32 Application Programming Interface (API), when used with:
This article was previously published under Q151072 SYMPTOMS
The dshSection and dsOffset members of the DIBSECTION structure contain NULL when the GetObject function is called on a file-mapped DIBSection. These structure members should contain the handle to the file-mapping object and the offset that were passed into the original CreatDIBSection function call. Note that this is a problem only when DIBSections are created from file-mapping objects. Normally, NULLs are used in the hSection and dwOffset parameters of the CreateDIBSection function to ask Windows to allocate the DIBSection[ASCII 146]s memory. Under these conditions, GetObject would
be expected to return NULL for these structure members.
RESOLUTION
To work around this problem, applications must cache the values passed to
the CreateDIBSection function.
STATUSMicrosoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.
| Modification Type: | Minor | Last Reviewed: | 3/21/2005 |
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| Keywords: | kbbug kbpending KB151072 |
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