mmioFOURCC macro (vfw.h)

The mmioFOURCC macro converts four characters into a four-character code.

Syntax

FOURCC mmioFOURCC(
    CHAR ch0,
    CHAR ch1,
    CHAR ch2,
    CHAR ch3
);

Parameters

ch0

First character of the four-character code.

ch1

Second character of the four-character code.

ch2

Third character of the four-character code.

ch3

Fourth character of the four-character code.

Return value

Type: FOURCC

Returns the four-character code created from the given characters.

Remarks

This macro does not check whether the four-character code it returns is valid.

The mmioFOURCC macro is defined as follows:

#define mmioFOURCC(ch0, ch1, ch2, ch3) \ 
    MAKEFOURCC(ch0, ch1, ch2, ch3); 
 

The MAKEFOURCC macro, in turn, is defined as follows:

#define MAKEFOURCC(ch0, ch1, ch2, ch3)  \ 
    ((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) |  \ 
    ((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24 )); 

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	vfw.h (include Windows.h)