SysReAllocStringLen (Windows CE 5.0)
This function creates a BSTR that contains a specified number of characters from an old BSTR, and frees the old BSTR.
HRESULT SysReAllocStringLen(BSTR FAR* pbstr, OLECHAR FAR* pch, unsigned intcch );
Parameters
- pbstr
[out] Pointer to a string. - pch
[in] Pointer to cch characters to copy, or NULL to keep the string uninitialized. - cch
[in] Number of characters to copy from pch. A null character is placed afterward, allocating a total of cch+1 characters.
Return Values
Returns an HRESULT value.
Remarks
The SysReAllocStringLen function does the following:
- Allocates a new string
- Copies cch characters from the passed string into it
- Appends a null character
- Frees the BSTR referenced by pbstr
- Resets pbstr to point to the new BSTR
If pch is NULL, a string of length cch is allocated but not initialized.
The pch string can contain embedded null characters and does not need to end with a NULL.
Windows CE supports only Unicode strings.
Passing invalid (and under some circumstances NULL) pointers to this function causes an unexpected termination of the application.
Requirements
OS Versions: Windows CE 2.0 and later.
Header: Oleauto.h.
Link Library: Oleaut32.lib.
See Also
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