PathIsURLW function (shlwapi.h)

Article
02/22/2024

Tests a given string to determine if it conforms to a valid URL format.

Syntax

BOOL PathIsURLW(
  [in] LPCWSTR pszPath
);

Parameters

[in] pszPath

Type: LPCTSTR

A pointer to a null-terminated string of maximum length MAX_PATH that contains the URL path to validate.

Return value

Type: BOOL

Returns TRUE if pszPath has a valid URL format, or FALSE otherwise.

Remarks

This function does not verify that the path points to an existing site—only that it has a valid URL format.

Examples

#include <windows.h>
#include <iostream.h>
#include "Shlwapi.h"

void main( void )
{
// String path name 1.
char buffer_1[ ] = "http://www.microsoft.com/software/index.html";
char *lpStr1;
lpStr1 = buffer_1;

// String path name 2.
char buffer_2[ ] = "http://www.microsoft.com";
char *lpStr2;
lpStr2 = buffer_2;

// String path name 3.
char buffer_3[ ] = "microsoft.com";
char *lpStr3;
lpStr3 = buffer_3;

// Variable to get the return 
// from "PathIsURL".
int retval;

// Test path name 1.
retval = PathIsURL(lpStr1);
cout << "The contents of String 1: " << lpStr1
     << "\nThe return value from the function is " << retval << " = TRUE" << endl;

// Test path name 2.
retval = PathIsURL(lpStr2);
cout << "The contents of String 2: " << lpStr2
     << "\nThe return value from the function is " << retval << " = TRUE" << endl;

// Test path name 3.
retval = PathIsURL(lpStr3);
cout << "The contents of String 3: " << lpStr3
     << "\nThe return value from the function is " << retval << " = FALSE"<< endl;
}

OUTPUT:
=============
The contents of String 1: http://www.microsoft.com/software/index.html
The return value from the function is 1 = TRUE
The contents of String 2: http://www.microsoft.com
The return value from the function is 1 = TRUE
The contents of String 3: microsoft.com
The return value from the function is 0 = FALSE

Note

The shlwapi.h header defines PathIsURL as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional, Windows XP [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	shlwapi.h
Library	Shlwapi.lib
DLL	Shlwapi.dll (version 4.71 or later)

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