Как набрать номер модемом

Советы » Dial-up » Как набрать номер модемом

var

hCommFile: THandle; procedure

TForm1.Button1Click(Sender: TObject); var

PhoneNumber: string

; CommPort: string

; NumberWritten: LongInt; begin

PhoneNumber := 'ATDT 1-555-555-1212' + #13 + #10; CommPort := 'COM2'; {Open the comm port} hCommFile := CreateFile(PChar(CommPort), GENERIC_WRITE, 0, nil

, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); if

hCommFile = INVALID_HANDLE_VALUE then

begin

ShowMessage('Unable to open ' + CommPort); exit; end

; {Dial the phone} NumberWritten := 0; if

WriteFile(hCommFile, PChar(PhoneNumber)^, Length(PhoneNumber), NumberWritten, nil

) = false

then

begin

ShowMessage('Unable to write to ' + CommPort); end

; end

; procedure

TForm1.Button2Click(Sender: TObject); begin

{Close the port} CloseHandle(hCommFile); end

;

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