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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| user32.lib
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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GetDlgCtrlID
The GetDlgCtrlID function returns the identifier of the specified control.
int GetDlgCtrlID(
HWND hwndCtl
| // handle of control
| );
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Parameters
hwndCtl
Identifies the control.
Return Values
If the function succeeds, the return value is the identifier of the control.
If the function fails, the return value is NULL. An invalid value for the hwndCtl parameter, for example, will cause the function to fail.
Remarks
GetDlgCtrlID accepts child window handles as well as handles of controls in dialog boxes.
An application sets the identifier for a child window when it creates the
window by assigning the identifier value to the hmenu parameter when calling the CreateWindow or CreateWindowEx function.
Although GetDlgCtrlID may return a value if hwndCtl identifies a top-level window, top-level windows cannot have identifiers and
such a return value is never valid.
See Also
CreateWindow, CreateWindowEx, GetDlgItem
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