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[C++, GDI] TextOut advice needed

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As you know TextOut() requires a string-type parameter. But what is a general way to output numeric values (int, float, double)? Let's say I need to output the value of cos(45) or pow(3,2). They won't be accepted coz they're not strings. I tried _itoa() but isn't there a faster solution?

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An easy way is using sprintf() to combine the various(sp?) types into
an output string, then display that string. ie:

char buf[256];

sprintf (buf, "Player %s HP %i MP %i", strPlayer.c_str(), hp, mp);

// Have TextOut() display buf

Its somewhat ugly because of the character buffer though. Nontheless,
it is standard C (itoa() is not standard, although atoi() is)

itoa() is not defined by ANSI

sprintf() is a portable alternative.

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A type-safe and much more elegant alternative to sprintf() would be to use string streams from the Standard C++ Library:

#include <sstream>
#include <string>

int HP = 100;

std::wstringstream wss;

wss << HP;

std::wstring message = L"Player's HP is " + wss.str();

TextOut(hDC, 0, 0, message.c_str(), message.length());


You can use std::stringstream and std::string if your project is not Unicode-enabled.

Hope this helps.

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