176 lines
3.4 KiB
C++
176 lines
3.4 KiB
C++
/*++
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Copyright (c) 1998-2000 Microsoft Corporation
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Module Name:
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w32utl.cpp
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Abstract:
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Win32-Specific Utilities for the RDP Client Device Redirector
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Author:
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Tad Brockway
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Revision History:
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--*/
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#include <precom.h>
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#define TRC_FILE "w32utl"
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#include "w32utl.h"
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#include "atrcapi.h"
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#include "drdbg.h"
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ULONG
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RDPConvertToAnsi(
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LPWSTR lpwszUnicodeString,
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LPSTR lpszAnsiString,
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ULONG ulAnsiBufferLen
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)
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/*++
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Routine Description:
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Converts a Ansi string to Unicode.
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Arguments:
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lpwszUnicodeString - pointer to a unicode string to convert.
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lpszAnsiString - pointer to a ansi string buffer.
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ulAnsiBufferLen - Ansi buffer length.
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Return Value:
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Windows Error Code.
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--*/
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{
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ULONG ulRetVal;
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ULONG ulUnicodeStrLen;
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int count;
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DC_BEGIN_FN("RDPConvertToAnsi");
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ulUnicodeStrLen = wcslen(lpwszUnicodeString);
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if( ulUnicodeStrLen != 0 ) {
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count =
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WideCharToMultiByte(
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CP_ACP,
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WC_COMPOSITECHECK | WC_DEFAULTCHAR,
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lpwszUnicodeString,
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-1,
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lpszAnsiString,
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ulAnsiBufferLen,
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NULL, // system default character.
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NULL); // no notification of conversion failure.
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if (count == 0) {
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ulRetVal = GetLastError();
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TRC_ERR((TB, _T("RDPConvertToAnsi WideCharToMultiByte %ld."),ulRetVal));
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}
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else {
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ulRetVal = ERROR_SUCCESS;
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}
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}
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else {
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if (ulAnsiBufferLen > 0) {
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ulRetVal = ERROR_SUCCESS;
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lpszAnsiString[0] = '\0';
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}
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else {
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ulRetVal = ERROR_INSUFFICIENT_BUFFER;
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ASSERT(FALSE);
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}
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}
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DC_END_FN();
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return ulRetVal;
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}
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ULONG
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RDPConvertToUnicode(
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LPSTR lpszAnsiString,
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LPWSTR lpwszUnicodeString,
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ULONG ulUnicodeBufferLen
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)
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/*++
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Routine Description:
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Converts a Ansi string to Unicode.
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Arguments:
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lpszAnsiString - pointer to a ansi string to convert.
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lpwszUnicodeString - pointer to a unicode buffer.
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ulUnicodeBufferLen - unicode buffer length.
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Return Value:
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Windows Error Code.
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--*/
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{
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ULONG ulRetVal;
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ULONG ulAnsiStrLen;
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int count;
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DC_BEGIN_FN("RDPConvertToUnicode");
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ulAnsiStrLen = strlen(lpszAnsiString);
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if( ulAnsiStrLen != 0 ) {
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//
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// Wide char string is terminated
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// by MultiByteToWideChar
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//
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count =
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MultiByteToWideChar(
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CP_ACP,
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MB_PRECOMPOSED,
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lpszAnsiString,
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-1,
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lpwszUnicodeString,
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ulUnicodeBufferLen);
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if (count == 0) {
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ulRetVal = GetLastError();
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TRC_ERR((TB, _T("RDPConvertToUnicode MultiByteToWideChar %ld."),ulRetVal));
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}
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else {
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ulRetVal = ERROR_SUCCESS;
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}
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}
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else {
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//
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// do nothing.
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//
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if (ulUnicodeBufferLen > 0) {
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ulRetVal = ERROR_SUCCESS;
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lpwszUnicodeString[0] = L'\0';
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}
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else {
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ulRetVal = ERROR_INSUFFICIENT_BUFFER;
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ASSERT(FALSE);
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}
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}
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DC_END_FN();
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return ulRetVal;
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}
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