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This tiny class allows to conveniently access the wxString internal buffer as a writable pointer without any risk to forget to restore the string to the usable state later.

For example, assuming you have a low-level OS function called GetMeaningOfLifeAsString(char *) returning the value in the provided buffer (which must be writable, of course) you might call it like this:

    wxString theAnswer;
    GetMeaningOfLifeAsString(wxStringBuffer(theAnswer, 1024));
    if ( theAnswer != "42" )
        wxLogError("Something is very wrong!");
Derived from


Include files



wxStringBuffer::operator wxChar *


wxStringBuffer(const wxString& str, size_t len)

Constructs a writable string buffer object associated with the given string and containing enough space for at least len characters. Basically, this is equivalent to calling GetWriteBuf and saving the result.



Restores the string passed to the constructor to the usable state by calling UngetWriteBuf on it.

wxStringBuffer::operator wxChar *

wxChar * operator wxChar *() const

Returns the writable pointer to a buffer of the size at least equal to the length specified in the constructor.