## 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.

###

atoi

Conversion Functions

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.

###

IntToWstr

Conversion Functions

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

Conversion Functions

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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