states that D2D1_MAP_OPTIONS_READ is not available on bitmaps created by ID2D1DeviceContext
. Then, to figure out how to create ID2D1Bitmap1
, which Map() can be used for, if we visit to ID2D1Bitmap1 interface
page, it says “use one of these methods to create and ID2D1Bitmap object.
Didn’t it say that D2D1_MAP_OPTIONS_READ is not available for bitamps created by ID2D1DeviceContext?
Shouldn’t there be more way to create ID2D1Bitmap1?
Since 1990, MSDN document has never been good. However, after they adopted “community-based documentation” model, it became even worse. For example, some pages contain just meaningless vague information. Some pages contain sentences which can be understood in many different ways…
Come on, Microsoft people! What are you guys thinking about? Do you guys really think the MSDN document is good?
It’s also creating ID2D1Bitmap1 by “ID2D1DeviceContext”.