C / C++ / MFC

zafersavas wrote:

Its because you are in UNICODE...... is this the answer?
Think about the person expecting a solution : so what? What am I supposed to do? Where should I read?

#include "stdafx.h"
#include "windows.h"
 
int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
    MessageBox(
        NULL,
        <code>_T(</code>"This is my first windows program\n Author: Mohsin"<code>)</code>,
        <code>_T(</code>"Virtual University"<code>)</code>,
        MB_OK|MB_ICONINFORMATION);
}

union MyUnion
{
int i;
float f;
};

struct MyStruct
{
int i;
float f;
};

void main()
{
  MyUnion u;
  MyStruct s;
  u.i = 5; // this also changes u.f
  s.i = 5; // this doesn't change s.f
}

Alan Balkany wrote:

each one starts in the byte after the previous one ends.

struct example{
   char c;  //one byte?
   long l;  //four bytes?
};
printf( "sizeof(example) = %d", sizeof(example) );