C ++ MessageBox messageboxa messageboxw afxmessagebox

From: http://blog.sina.com.cn/s/blog_5059be880100whu3.html

C-language MessageBox
Messageboxa (
   Hwnd,
   Lpcstr lptext,
   Maid,
   Uint utype );

Messageboxw (
   Hwnd,
   Lpcwstr lptext,
   Maid,
   Uint utype );

# Ifdef Unicode
# Define MessageBoxMessageboxw
# Else
# Define MessageBoxMessageboxa
# Endif

Example: MessageBox (null, text ("Hello world! "), Text (" hello "), mb_yesno | mb_iconexclamation );

The buttons have the following macros:
# Define mb_ OK                     0x00000000l
# Define mb_okcancel               0x00000001l
# Define mb_abortretryignore       0x00000002l
# Define mb_yesnocancel            0x00000003l
# Define mb_yesno                  0x00000004l
# Define mb_retrycancel            0x00000005l

Icon macros:
# Define mb_iconhand               0x00000010l
# Define mb_iconquestion           0x00000020l
# Define mb_iconexclamation        0x00000030l
# Define mb_iconasterisk           0x00000040l

The return values of MessageBox are:
# Define idok              1
# Define idcancel          2
# Define idabort           3
# Define idretry           4
# Define idignore          5
# Define idyes             6
# Define IDNO