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Retrieves the current control settings for a specified communications device.
Syntax
BOOL GetCommState(
[in] HANDLE hFile,
[in, out] LPDCB lpDCB
);
Parameters
[in] hFile
A handle to the communications device. The CreateFile function returns this handle.
[in, out] lpDCB
A pointer to a DCB structure that receives the control settings information.
Return value
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2003 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | winbase.h (include Windows.h) |
| Library | Kernel32.lib |
| DLL | Kernel32.dll |