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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| user-defined
| Header File
| winuser.h
| Unicode
| WinNT
| Platform Notes
| PROPENUMPROC
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PropEnumProc
A PropEnumProc function is an application-defined callback function that receives property
entries from a window's property list. A PropEnumProc function is called as a result of a call to the EnumProps function. A value of type PROPENUMPROC is a pointer to a PropEnumProc function.
BOOL CALLBACK PropEnumProc(
HWND hwnd,
| // handle to window whose property list is being enumerated
| LPCTSTR lpszString,
| // string component of property
| HANDLE hData
| // data handle component of property
| );
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Parameters
hwnd
Handle to the window whose property list is being enumerated.
lpszString
Pointer to a null-terminated string. This string is the string component of a
property list entry. This is the string that was specified, along with a data
handle, when the property was added to the window's property list via a call to
the SetProp function.
hData
Handle to data. This handle is the data component of a property list entry.
Return Values
Return TRUE to continue the property list enumeration.
Return FALSE to stop the property list enumeration.
Remarks
The following restrictions apply to this callback function:
- The callback function must not yield control or do anything that might yield
control to other tasks.
- The callback function can call the RemoveProp function. However, RemoveProp can remove only the property passed to the callback function through the
callback function's parameters.
- The callback function should not attempt to add properties.
PropEnumProc is a placeholder for the application-defined function name.
See Also
EnumProps, EnumPropsEx, PropEnumProcEx, RemoveProp, SetProp
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