RETAILMSG (Windows CE 5.0)

项目
09/14/2012

This macro conditionally outputs a printf-style formatted message.

RETAILMSG (Expression,Message)

Parameters

Expression
Boolean expression used to determine if the message would be output.
Message
Expression to be printed using printf format style.

Return Values

None.

Remarks

The printf-style message parameter is output if the Boolean input expression evaluates to TRUE. Note that the parameter Message must be enclosed by parentheses to prevent syntax errors being generated by the preprocessor. This macro should be used sparingly, as it increases the size of retail builds.

Example

 RETAILMSG(TRUE, (TEXT("Testing item count against maximum %u\r\n"),
         dwMaxNumberOfItems));
 RETAILMSG(dwCurrentNumberOfItems >= dwMaxNumberOfItems,
          (TEXT("Invalid item count! Found %u, expected less than %u\r\n"),
           dwCurrentNumberOfItems, dwMaxNumberOfItems));

Output:

 Testing item count against maximum 68
 Invalid item count! Found 343, expected less than 68

Requirements

OS Versions: Windows CE OS 2.10 and later
Header: Dbgapi.h
Link Library: none

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