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CheckPointer (Windows Embedded CE 6.0)

  • Article

1/6/2010

This macro determines if a given pointer is NULL. If the pointer is NULL, CheckPointer returns a user-defined value.

Syntax

CheckPointer(
    p,
    ret
);

Parameters

  • p
    Pointer to check.
  • ret
    Value your function will return if p is NULL.

Remarks

The following examples shows how to call this macro.

HRESULT OneFunction(VOID *pSomeParameter)
{
    CheckPointer(pSomeParameter, E_INVALIDARG)
}
BOOL AnotherFunction(VOID *pSomeParameter)
{
    CheckPointer(pSomeParameter, FALSE)
}

Requirements

Windows Embedded CE Windows CE 2.12 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later

See Also

Reference

Pointer Validation Macros