URLAssociationDialogA function (intshcut.h)

Article
02/09/2023

Invokes the unregistered URL protocol dialog box. This dialog box allows the user to select an application to associate with a previously unknown protocol.

Note Windows XP Service Pack 2 (SP2) or later: This function is no longer supported.

Syntax

INTSHCUTAPI HRESULT URLAssociationDialogA(
        HWND  hwndParent,
        DWORD dwInFlags,
        PCSTR pcszFile,
        PCSTR pcszURL,
  [out] PSTR  pszAppBuf,
        UINT  ucAppBufLen
);

Parameters

hwndParent

Type: HWND

A handle to the parent window.

dwInFlags

Type: DWORD

The bit flags that specify the behavior of the function. This value can be a combination of the following:

URLASSOCDLG_FL_USE_DEFAULT_NAME

Use the default file name (that is, "Internet Shortcut").

URLASSOCDLG_FL_REGISTER_ASSOC

Register the selected application as the handler for the protocol specified in pcszURL. The application is registered only if this flag is set and the user indicates that a persistent association is desired.

pcszFile

Type: PTCSTR

The address of a constant zero-terminated string that contains the file name to associate with the URLs protocol.

pcszURL

Type: PTCSTR

The address of a constant zero-terminated string that contains the URL with an unknown protocol.

[out] pszAppBuf

Type: PTSTR

The address of a buffer that receives the path of the application specified by the user.

ucAppBufLen

Type: UINT

The size of pszAppBuf, in characters.

Return value

Type: HRESULT

Note As of Windows XP SP2, this function not supported and returns E_NOTIMPL in all situations.

In supported systems, returns S_OK if the application is registered with the URL protocol, or S_FALSE if nothing is registered. For example, the function returns S_FALSE when the user elects to perform a one-time execution via the selected application.

Remarks

Note

The intshcut.h header defines URLAssociationDialog 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 XP [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	intshcut.h
DLL	Url.dll

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