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Marshal.FreeCoTaskMem

This tag is associated with 12 posts

Interoping COM Structures.

1. Introduction. 1.1 COM structures, or User-Defined Types (UDTs) are very useful constructs. Their interoperability in managed code, however, is not perfect and there are situations in which their use is not possible. 1.2 This blog examines various scenarios in which UDTs are used between COM and managed code (specifically C#). We will also analyze the success … Continue reading

Returning Strings from a C++ API to C#

1. Introduction. 1.1 APIs that return strings are very common. However, the internal nature of such APIs, as well as the use of such APIs in managed code, require special attention. This blog will demonstrate both concerns. 1.2 I will present several techniques for returning an unmanaged string to managed code. But before that I shall first provide an … Continue reading