Conversion Functions

The Wxutil.h header file in the DirectShow base classes provides functions for converting between integers and wide strings.

Function	Description
atoi	Converts a string to an integer.
IntToWstr	Converts an integer to a wide string.
WstrToInt	Converts a wide string to an integer.

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atoi

Converts a given string to an integer.

int WINAPI atoi(
  const TCHAR *sz
  );

Parameters

sz

Source character string.

Return Values

Returns the string's integer value.

Remarks

This version of atoi supports only decimal digits, and does not allow leading white space or signs. It supports both Unicode and ANSI strings. Other versions can vary.

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IntToWstr

Converts a given integer value to a wide string representation.

void IntToWstr(
  int i,
  LPWSTR wstrDest
  );

Parameters

i

Integer value to be converted.

wstrDest

LPWSTR that will contain the resulting wide string.

Return Values

No return value.

---

WstrToInt

Converts a given wide string value to an integer.

int WstrToInt(
  LPCWSTR wstrSrc
  );

Parameters

wstrSrc

Source wide-character string.

Return Values

Returns the string's integer value.

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