Sets the handle of the memory that will be used by a multiline edit control.
A handle to the memory buffer the edit control uses to store the currently displayed text instead of allocating its own memory. If necessary, the control reallocates this memory.
This parameter is not used.
This message does not return a value.
Before an application sets a new memory handle, it should send an EM_GETHANDLE message to retrieve the handle of the current memory buffer and should free that memory.
An edit control automatically reallocates the given buffer whenever it needs additional space for text, or it removes enough text so that additional space is no longer needed.
Rich Edit: The EM_SETHANDLE message is not supported. Rich edit controls do not store text as a simple array of characters.
Minimum supported client
|Windows Vista [desktop apps only]|
Minimum supported server
|Windows Server 2003 [desktop apps only]|