/tags/rel-1.3.35/Lib/csharp/wchar.i

  1/* -----------------------------------------------------------------------------
  2 * See the LICENSE file for information on copyright, usage and redistribution
  3 * of SWIG, and the README file for authors - http://www.swig.org/release.html.
  4 *
  5 * wchar.i
  6 *
  7 * Typemaps for the wchar_t type
  8 * These are mapped to a C# String and are passed around by value.
  9 *
 10 * Support code for wide strings can be turned off by defining SWIG_CSHARP_NO_WSTRING_HELPER
 11 *
 12 * ----------------------------------------------------------------------------- */
 13
 14#if !defined(SWIG_CSHARP_NO_WSTRING_HELPER)
 15#if !defined(SWIG_CSHARP_WSTRING_HELPER_)
 16#define SWIG_CSHARP_WSTRING_HELPER_
 17%insert(runtime) %{
 18/* Callback for returning strings to C# without leaking memory */
 19typedef void * (SWIGSTDCALL* SWIG_CSharpWStringHelperCallback)(const wchar_t *);
 20static SWIG_CSharpWStringHelperCallback SWIG_csharp_wstring_callback = NULL;
 21%}
 22
 23%pragma(csharp) imclasscode=%{
 24  protected class SWIGWStringHelper {
 25
 26    public delegate string SWIGWStringDelegate(IntPtr message);
 27    static SWIGWStringDelegate wstringDelegate = new SWIGWStringDelegate(CreateWString);
 28
 29    [DllImport("$dllimport", EntryPoint="SWIGRegisterWStringCallback_$module")]
 30    public static extern void SWIGRegisterWStringCallback_$module(SWIGWStringDelegate wstringDelegate);
 31
 32    static string CreateWString([MarshalAs(UnmanagedType.LPWStr)]IntPtr cString) {
 33      return System.Runtime.InteropServices.Marshal.PtrToStringUni(cString);
 34    }
 35
 36    static SWIGWStringHelper() {
 37      SWIGRegisterWStringCallback_$module(wstringDelegate);
 38    }
 39  }
 40
 41  static protected SWIGWStringHelper swigWStringHelper = new SWIGWStringHelper();
 42%}
 43
 44%insert(runtime) %{
 45#ifdef __cplusplus
 46extern "C"
 47#endif
 48SWIGEXPORT void SWIGSTDCALL SWIGRegisterWStringCallback_$module(SWIG_CSharpWStringHelperCallback callback) {
 49  SWIG_csharp_wstring_callback = callback;
 50}
 51%}
 52#endif // SWIG_CSHARP_WSTRING_HELPER_
 53#endif // SWIG_CSHARP_NO_WSTRING_HELPER
 54
 55
 56// wchar_t
 57%typemap(ctype) wchar_t "wchar_t"
 58%typemap(imtype) wchar_t "char"
 59%typemap(cstype) wchar_t "char"
 60
 61%typemap(csin) wchar_t "$csinput"
 62%typemap(csout, excode=SWIGEXCODE) wchar_t {
 63    char ret = $imcall;$excode
 64    return ret;
 65  }
 66%typemap(csvarin, excode=SWIGEXCODE2) wchar_t %{
 67    set {
 68      $imcall;$excode
 69    } %}
 70%typemap(csvarout, excode=SWIGEXCODE2) wchar_t %{
 71    get {
 72      char ret = $imcall;$excode
 73      return ret;
 74    } %}
 75
 76%typemap(in) wchar_t %{ $1 = ($1_ltype)$input; %}
 77%typemap(out) wchar_t %{ $result = (wchar_t)$1; %}
 78
 79%typemap(typecheck) wchar_t = char;
 80
 81// wchar_t *
 82%typemap(ctype) wchar_t * "wchar_t *"
 83%typemap(imtype, inattributes="[MarshalAs(UnmanagedType.LPWStr)]", out="IntPtr" ) wchar_t * "string"
 84%typemap(cstype) wchar_t * "string"
 85
 86%typemap(csin) wchar_t * "$csinput"
 87%typemap(csout, excode=SWIGEXCODE) wchar_t * {
 88    string ret = System.Runtime.InteropServices.Marshal.PtrToStringUni($imcall);$excode
 89    return ret;
 90  }
 91%typemap(csvarin, excode=SWIGEXCODE2) wchar_t * %{
 92    set {
 93      $imcall;$excode
 94    } %}
 95%typemap(csvarout, excode=SWIGEXCODE2) wchar_t * %{
 96    get {
 97      string ret = $imcall;$excode
 98      return ret;
 99    } %}
100
101%typemap(in) wchar_t * %{ $1 = ($1_ltype)$input; %}
102%typemap(out) wchar_t * %{ $result = (wchar_t *)$1; %}
103
104%typemap(typecheck) wchar_t * = char *;
105