Re: How can I pass a file to a function?
"Allen" <allen_maki@yahoo.com> wrote in message
news:62C04FDA-AC28-4E93-8AE2-1AE1A5023E01@microsoft.com...
How can I pass a file to a function? If tried the code below (using
string* or String*) I got:
What version of Visual Studio are you using? Please use at least VS2005
(Express Edition of VC2008 is available as a free download) and the new
C++/CLI syntax that David mentioned. In addition to using ^ instead of *
for handles to managed types, "__gc class" becomes "ref class".
C++ is also case-sensitive, so you can't use string in the header and then
String in the implementation. The first refers to the native std::string
class (and requires "using namespace std;" or full qualification) while the
second is the .NET System::String reference type (and requires "using
namespace System;")
"error C2143: syntax error : missing ')' before '*' "
//The function in "Time.ccp"
void Time::WriteToFile(String* path)
{
FileStream* fs = new FileStream(path, FileMode::Create);
StreamWriter* sw = new StreamWriter(fs);
String* TimeString = (System::DateTime::Now.ToString("mm"));
sw->WriteLine(TimeString);
sw->Flush();
sw->Close();
}
// "Time.h"
__gc class Time
{
public:
Time (string* path);
void WriteToFile(string* path);
void Time::ReadFromFile();
private:
string* path;
};
//Call the function from the handler
private: System::Void InBtn_Click(System::Object * sender,
System::EventArgs * e)
{
Time * Employee1;
Employee1 = new Time;
Employee1->WriteToFile(S"TimeX.txt");
}
--
Thanks
Allen
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