CHString::FormatV method (chstring.h)

[The CHString class is part of the WMI Provider Framework which is now considered in final state, and no further development, enhancements, or updates will be available for non-security related issues affecting these libraries. The MI APIs should be used for all new development.]

The FormatV method writes a formatted string and a variable list of arguments to a CHString string.

Syntax

void FormatV(
  LPCWSTR lpszFormat,
  va_list argList
);

Parameters

lpszFormat

Format control string.

argList

List of arguments that are passed.

Return value

None

Remarks

The FormatV method formats and stores a series of characters and values in the CHString string. The string and arguments are converted and output according to the corresponding format specification in lpszFormat.

If the string object is offered as a parameter to FormatV, the call fails.

Note  To reduce exposure to security attacks, always use a format string for FormatV. Never use a user-supplied string for the format string. If your format string is stored for a purpose such as localization, ensure that the string is protected from unauthorized write access. If your function writes to a string rather than standard output, you may need to avoid using a trailing "%s" in the format string. For more information, see www.securityfocus.com/archive/1/81565 and www.securityfocus.com/archive/1/66842.

 

Requirements

Requirement	Value
Minimum supported client	Windows Vista
Minimum supported server	Windows Server 2008
Target Platform	Windows
Header	chstring.h (include FwCommon.h)
Library	FrameDyn.lib
DLL	FrameDynOS.dll; FrameDyn.dll

See also

CHString

CHString::Format