Message boxes differ in Windows Vista and in Microsoft Windows XP, although you use the same code to generate the message boxes.

For example, when you use the following code sample to generate the same message box in Windows Vista and in Windows XP, the text in the message box wraps in Windows Vista. However, the text does not wrap in Windows XP. Also, the buttons in the message box are right justified in Windows Vista. The buttons are centered in Windows XP.

#include <windows.h>
//#include <afx.h>

int WINAPI WinMain(HINSTANCE hlnstance, HINSTANCE hPrevInstance,
PSTR szcmdline, int iCmdShow)
{
MessageBox(NULL, TEXT("Hello! This is a MessageBox test! Hello! This is a MessageBox test! Hello! This is a MessageBox test!"), TEXT("MessageBox test"),MB_ICONEXCLAMATION|MB_YESNO);
return 0;
}