📄 深入浅出vc++串口编程之基于win32 api-开发者网络-串口-天极yesky.mht
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Date: Mon, 3 Sep 2007 15:43:02 +0800
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<H1>=C9=EE=C8=EB=C7=B3=B3=F6VC++=B4=AE=BF=DA=B1=E0=B3=CC=D6=AE=BB=F9=D3=DA=
Win32 API</H1></DIV>
<DIV id=3Dconauthor><SPAN>2006-02-20 15:49 =
</SPAN><SPAN>=D7=F7=D5=DF=A3=BA =CB=CE=B1=A6=BB=AA =
</SPAN><SPAN>=B3=F6=B4=A6=A3=BA=20
=CC=EC=BC=AB=BF=AA=B7=A2 </SPAN><SPAN>=D4=F0=C8=CE=B1=E0=BC=AD=A3=BA<A =
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<DIV class=3Dguanggao><SPAN =
id=3DcontentAdv></SPAN></DIV>=A1=A1=A1=A11=A1=A2API=C3=E8=CA=F6<BR><BR>=A1=
=A1=A1=A1=D4=DAWIN32=20
API=D6=D0=A3=AC=B4=AE=BF=DA=CA=B9=D3=C3=CE=C4=BC=FE=B7=BD=CA=BD=BD=F8=D0=D0=
=B7=C3=CE=CA=A3=AC=C6=E4=B2=D9=D7=F7=B5=C4API=BB=F9=B1=BE=C9=CF=D3=EB=CE=C4=
=BC=FE=B2=D9=D7=F7=B5=C4API=D2=BB=D6=C2=A1=A3<BR><BR>=A1=A1=A1=A1=B4=F2=BF=
=AA=B4=AE=BF=DA<BR><BR>=A1=A1=A1=A1Win32=20
=D6=D0=D3=C3=D3=DA=B4=F2=BF=AA=B4=AE=BF=DA=B5=C4API =
=BA=AF=CA=FD=CE=AACreateFile=A3=AC=C6=E4=D4=AD=D0=CD=CE=AA=A3=BA<BR><BR>
<TABLE borderColor=3D#cccccc width=3D"90%" align=3Dcenter =
bgColor=3D#e3e3e3 border=3D1>
<TBODY>
<TR>
<TD>HANDLE CreateFile (<BR>=A1=A1LPCTSTR lpFileName, =
//=BD=AB=D2=AA=B4=F2=BF=AA=B5=C4=B4=AE=BF=DA=C2=DF=BC=AD=C3=FB=A3=AC=C8=E7=
COM1=20
=BB=F2COM2<BR>=A1=A1DWORD dwAccess, =
//=D6=B8=B6=A8=B4=AE=BF=DA=B7=C3=CE=CA=B5=C4=C0=E0=D0=CD=A3=AC=BF=C9=D2=D4=
=CA=C7=B6=C1=C8=A1=A1=A2=D0=B4=C8=EB=BB=F2=C1=BD=D5=DF=B2=A2=C1=D0<BR>=A1=
=A1DWORD dwShareMode,=20
=
//=D6=B8=B6=A8=B9=B2=CF=ED=CA=F4=D0=D4=A3=AC=D3=C9=D3=DA=B4=AE=BF=DA=B2=BB=
=C4=DC=B9=B2=CF=ED,=B8=C3=B2=CE=CA=FD=B1=D8=D0=EB=D6=C3=CE=AA0<BR>=A1=A1L=
PSECURITY_ATTRIBUTES lpsa, //=D2=FD=D3=C3<A=20
class=3Dbluekey href=3D"http://soft.yesky.com/security/"=20
=
target=3D_blank>=B0=B2=C8=AB</A>=D0=D4=CA=F4=D0=D4=BD=E1=B9=B9=A3=AC=C8=B1=
=CA=A1=D6=B5=CE=AANULL<BR>=A1=A1DWORD dwCreate,=20
=
//=B4=B4=BD=A8=B1=EA=D6=BE=A3=AC=B6=D4=B4=AE=BF=DA=B2=D9=D7=F7=B8=C3=B2=CE=
=CA=FD=B1=D8=D0=EB=D6=C3=CE=AAOPEN EXISTING<BR>=A1=A1DWORD =
dwAttrsAndFlags,=20
=
//=CA=F4=D0=D4=C3=E8=CA=F6=A3=AC=D3=C3=D3=DA=D6=B8=B6=A8=B8=C3=B4=AE=BF=DA=
=CA=C7=B7=F1=BF=C9=BD=F8=D0=D0=D2=EC=B2=BD=B2=D9=D7=F7=A3=AC<BR>=A1=A1//F=
ILE_FLAG_OVERLAPPED=A3=BA=BF=C9=CA=B9=D3=C3=D2=EC=B2=BD=B5=C4I/O<BR>=A1=A1=
HANDLE=20
hTemplateFile=20
//=D6=B8=CF=F2=C4=A3=B0=E5=CE=C4=BC=FE=B5=C4=BE=E4=B1=FA=A3=AC=B6=D4=B4=AE=
=BF=DA=B6=F8=D1=D4=B8=C3=B2=CE=CA=FD=B1=D8=D0=EB=D6=C3=CE=AANULL<BR>);</T=
D></TR></TBODY></TABLE><BR>=A1=A1=A1=A1=C0=FD=C8=E7=A3=AC=D2=D4=CF=C2=B3=CC=
=D0=F2=D3=C3=D3=DA=D2=D4=CD=AC=B2=BD=B6=C1=D0=B4=B7=BD=CA=BD=B4=F2=BF=AA=B4=
=AE=BF=DACOM1=A3=BA<BR><BR>
<TABLE borderColor=3D#cccccc width=3D"90%" align=3Dcenter =
bgColor=3D#e3e3e3 border=3D1>
<TBODY>
<TR>
<TD>HANDLE hCom;<BR>DWORD dwError;<BR>hCon =3D CreateFile("COM1",=20
GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, =
NULL);<BR>if=20
(hCom =3D=3D (HANDLE)0xFFFFFFFF)<BR>{<BR>=A1=A1dwError =3D=20
=
GetLastError();<BR>=A1=A1MessageBox(dwError);<BR>}</TD></TR></TBODY></TAB=
LE><BR>=A1=A1=A1=A1=B6=D4=D3=DAdwAttrsAndFlags=B2=CE=CA=FD=BC=B0FILE_FLAG=
_OVERLAPPED=B1=EA=D6=BE=B5=C4=D3=C9=C0=B4=A3=AC=BF=C9=BD=E2=CA=CD=C8=E7=CF=
=C2=A3=BAWindows=CE=C4=BC=FE=B2=D9=D7=F7=B7=D6=CE=AA=CD=AC=B2=BDI/O=BA=CD=
=D6=D8=B5=FEI/O(Overlapped=20
I/=20
O)=C1=BD=D6=D6=B7=BD=CA=BD=A3=AC=D4=DA=CD=AC=B2=BDI/O=B7=BD=CA=BD=D6=D0=A3=
=ACAPI=BB=E1=D7=E8=C8=FB=D6=B1=B5=BD=B2=D9=D7=F7=CD=EA=B3=C9=D2=D4=BA=F3=B2=
=C5=C4=DC=B7=B5=BB=D8=A3=A8=D4=DA=B6=E0=CF=DF=B3=CC=B7=BD=CA=BD=D6=D0=A3=AC=
=CB=E4=C8=BB=B2=BB=BB=E1=D7=E8=C8=FB=D6=F7=CF=DF=B3=CC=A3=AC=B5=AB=CA=C7=C8=
=D4=C8=BB=BB=E1=D7=E8=C8=FB=BC=E0=CC=FD=CF=DF=B3=CC=A3=A9=A3=BB=B6=F8=D4=DA=
=D6=D8=B5=FEI/O=B7=BD=CA=BD=D6=D0=A3=ACAPI=BB=E1=C1=A2=BC=B4=B7=B5=BB=D8=A3=
=AC=B2=D9=D7=F7=D4=DA=BA=F3=CC=A8=BD=F8=D0=D0=A3=AC=B1=DC=C3=E2=CF=DF=B3=CC=
=B5=C4=D7=E8=C8=FB=A1=A3=D6=D8=B5=FEI/O=B7=C7=B3=A3=C1=E9=BB=EE=A3=AC=CB=FC=
=D2=B2=BF=C9=D2=D4=CA=B5=CF=D6=D7=E8=C8=FB=A3=A8=C0=FD=C8=E7=CE=D2=C3=C7=BF=
=C9=D2=D4=C9=E8=D6=C3=D2=BB=B6=A8=D2=AA=B6=C1=C8=A1=B5=BD=D2=BB=B8=F6=CA=FD=
=BE=DD=B2=C5=C4=DC=BD=F8=D0=D0=B5=BD=CF=C2=D2=BB=B2=BD=B2=D9=D7=F7)=A1=A3=
=C8=E7=B9=FB=BD=F8=D0=D0I/O=B2=D9=D7=F7=B5=C4API=20
=D4=DA=C3=BB=D3=D0=CD=EA=B3=C9=B2=D9=D7=F7=B5=C4=C7=E9=BF=F6=CF=C2=B7=B5=BB=
=D8=A3=AC=CE=D2=C3=C7=BF=C9=D2=D4=CD=A8=B9=FD=B5=F7=D3=C3GetOverLappedRes=
ult()=BA=AF=CA=FD=D7=E8=C8=FB=B5=BDI/O=B2=D9=D7=F7=CD=EA=B3=C9=BA=F3=B7=B5=
=BB=D8=A1=A3<BR><BR>=A1=A1=A1=A1=C5=E4=D6=C3=B4=AE=BF=DA<BR><BR>=A1=A1=A1=
=A1=C5=E4=D6=C3=B4=AE=BF=DA=CA=C7=CD=A8=B9=FD=B8=C4=B1=E4=C9=E8=B1=B8=BF=D8=
=D6=C6=BF=E9DCB(Device=20
Control Block)=20
=B5=C4=B3=C9=D4=B1=B1=E4=C1=BF=D6=B5=C0=B4=CA=B5=CF=D6=B5=C4=A3=AC=BD=D3=CA=
=D5=BB=BA=B3=E5=C7=F8=BA=CD=B7=A2=CB=CD=BB=BA=B3=E5=C7=F8=B5=C4=B4=F3=D0=A1=
=BF=C9=CD=A8=B9=FDSetupComm=BA=AF=CA=FD=C0=B4=C9=E8=D6=C3=A1=A3<BR><BR>=A1=
=A1=A1=A1DCB=BD=E1=B9=B9=CC=E5=B6=A8=D2=E5=CE=AA=A3=BA<BR><BR>
<TABLE borderColor=3D#cccccc width=3D"90%" align=3Dcenter =
bgColor=3D#e3e3e3 border=3D1>
<TBODY>
<TR>
<TD>typedef struct _DCB { // dcb <BR>=A1=A1DWORD DCBlength; // =
sizeof(DCB)=20
<BR>=A1=A1DWORD BaudRate; // current baud rate <BR>=A1=A1DWORD =
fBinary: 1; // binary=20
mode, no EOF check <BR>=A1=A1DWORD fParity: 1; // enable parity =
checking=20
<BR>=A1=A1DWORD fOutxCtsFlow:1; // CTS output flow control =
<BR>=A1=A1DWORD=20
fOutxDsrFlow:1; // DSR output flow control <BR>=A1=A1DWORD =
fDtrControl:2; //=20
DTR flow control type <BR>=A1=A1DWORD fDsrSensitivity:1; // DSR =
sensitivity=20
<BR>=A1=A1DWORD fTXContinueOnXoff:1; // XOFF continues Tx =
<BR>=A1=A1DWORD fOutX: 1;=20
// XON/XOFF out flow control <BR>=A1=A1DWORD fInX: 1; // XON/XOFF =
in flow=20
control <BR>=A1=A1DWORD fErrorChar: 1; // enable error replacement =
<BR>=A1=A1DWORD=20
fNull: 1; // enable null stripping <BR>=A1=A1DWORD fRtsControl:2; =
// RTS flow=20
control <BR>=A1=A1DWORD fAbortOnError:1; // abort reads/writes on =
error=20
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