Image::FindFirstItem method (gdiplusheaders.h)
The Image::FindFirstItem method retrieves the description and the data size of the first metadata item in this Image object.
Status FindFirstItem( [in, out] ImageItemData *item );
[in, out] item
Pointer to an ImageItemData object. On input, the Desc member points to a buffer (allocated by the caller) large enough to hold the metadata description (1 byte for JPEG, 4 bytes for PNG, 11 bytes for GIF), and the DescSize member specifies the size (1, 4, or 6) of the buffer pointed to by Desc. On output, the buffer pointed to by Desc receives the metadata description, and the DataSize member receives the size, in bytes, of the metadata itself.
If the method succeeds, it returns Ok, which is an element of the Status enumeration.
If the method fails, it returns one of the other elements of the Status enumeration.
Use Image::FindFirstItem along with Image::FindNextItem to enumerate the metadata items, including custom metadata, stored in an image. Image::FindFirstItem and Image::FindNextItem do not enumerate the metadata items stored by the Image::SetPropertyItem method.
|Minimum supported client||Windows Vista [desktop apps only]|
|Minimum supported server||Windows Server 2008 [desktop apps only]|
|Header||gdiplusheaders.h (include Gdiplus.h)|