Original Post
My foray into creating a window wrapper has been pain, if you look at my other posts. I have been able to narrow my problem down to the std::map. So I created an empty project and have been playing with the std::map template, as I have never used it before. First off, the code: The program crashes on the it == NULL line: Obviously this doesn't work as it isn't a pointer. So how should I test it for having not found the msg? On a side note, is there a reason that Visual Assist doesn't parse the
#include <stdio.h>
#include <iostream>
#include <map>
#include <conio.h>
#define MSG_CLOSE 5
typedef unsigned int UINT;
typedef long (* msgHandler)(UINT);
typedef std::map<long,msgHandler>::iterator iter;
std::map<long,msgHandler> messages;
long OnClose(UINT msg)
{
std::cout << "OnClose called" << std::endl;
return 1;
}
void AddHandler(UINT msg, msgHandler handler)
{
messages.insert(std::pair<long,msgHandler>(msg, handler));
}
int main(int argc, char *argv[])
{
std::cout << "Adding on close handler" << std::endl;
AddHandler(MSG_CLOSE,&OnClose);
std::cout << "Calling on close" << std::endl;
iter it = messages.find(MSG_CLOSE);
if (it == NULL)
std::cout << "OnClose not called" << std::endl;
else
(it->second)(5);
system("PAUSE");
return 0;
}
