在我看來,MAPI(Windows Mail API)與UTF8有問題(或者我做錯了什麼)。WIndows MAPI unicode問題
代碼示例:
HMODULE m_hLib = LoadLibraryA("MAPI32.DLL");
if (m_hLib == NULL)
return SEND_MAIL_CANCELED;
LPMAPISENDMAIL SendMail;
SendMail = (LPMAPISENDMAIL) GetProcAddress(m_hLib, "MAPISendMail");
if (!SendMail)
return;
MapiFileDesc fileDesc;
ZeroMemory(&fileDesc, sizeof(fileDesc));
fileDesc.nPosition = (ULONG) -1;
fileDesc.lpszPathName = (LPSTR) filePath.toUtf8();
fileDesc.lpszFileName = (LPSTR) fileName.toUtf8();
MapiRecipDesc recipientData;
ZeroMemory(&recipientData, sizeof(recipientData));
recipientData.lpszName = (LPSTR) recipient.toUtf8();
recipientData.ulRecipClass = MAPI_TO;
MapiMessage message;
ZeroMemory(&message, sizeof(message));
message.ulReserved = CP_UTF8;
message.lpszSubject = (LPSTR) title.toUtf8();
message.nFileCount = 1;
message.lpFiles = &fileDesc;
message.nRecipCount = 1;
message.lpRecips = &recipientData;
int nError = SendMail(0, NULL, &message, MAPI_LOGON_UI | MAPI_DIALOG, 0);
title
,filePath
,fileName
和recipient
都是std::string
秒。據我所知,UTF8兼容ASCII(也是NULL終止),所以它的字符串可以保存這些值沒有任何問題。
我轉換爲UTF8從這樣wstring的:
int requiredSize = WideCharToMultiByte(CP_UTF8, 0, data.c_str(), -1, 0, 0, 0, 0);
if(requiredSize > 0)
{
std::vector<char> buffer(requiredSize);
WideCharToMultiByte(CP_UTF8, 0, data.c_str(), -1, &buffer[0], requiredSize, 0, 0);
this->container.append(buffer.begin(), buffer.end() - 1);
}
container
是std::string
對象。
這裏的實際問題是什麼?你期望發生什麼,你會得到什麼? – 2012-03-30 15:08:56