F
foxs
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GUEST, unregistred user!
我的关于读卡的子程序,其中引用了厂家给的dll文件中的函数,你看看吧
procedure Tmainfrm.readcard;
var
mdatype,mdamemsize,mdafl,mdaol,mdard,mdawrp,mdawrc,carddata: string;
ret: Smallint;
len,curlen,addr:byte;
begin
carddata := StringOfChar(' ',65);
mdatype := StringOfChar(' ',12);
mdamemsize := StringOfChar(' ',12);
mdafl := StringOfChar(' ',12);
mdaol := StringOfChar(' ',12);
mdard := StringOfChar(' ',12);
mdawrp := StringOfChar(' ',12);
mdawrc := StringOfChar(' ',12);
addr :=13;
len :=40;
//Screen.Cursor := crHourglass;
SetLamp(3);
ret := ReadMDAType(hComDev,20,mdatype,mdamemsize,mdafl,mdaol,mdard,mdawrp,mdawrc);
Sleep(100);
SetLamp(2);
if ret<>0 then
begin
Screen.Cursor := crDefault;
Exit;
end;
while ( len>0 ) do
begin
if len>32 then
curlen := 32
else
curlen := len;
SetLamp(3);
ret := genReadCard(hComDev,20,addr,curlen,carddata);
if ret=0 then
begin
edit6.text:=edit6.text+carddata;
end;
SetLamp(2);
if ret<>0 then
begin
Screen.Cursor := crDefault;
Exit;
end;
len := len-curlen;
end;
Screen.Cursor := crDefault;
end;
procedure Tmainfrm.readcard;
var
mdatype,mdamemsize,mdafl,mdaol,mdard,mdawrp,mdawrc,carddata: string;
ret: Smallint;
len,curlen,addr:byte;
begin
carddata := StringOfChar(' ',65);
mdatype := StringOfChar(' ',12);
mdamemsize := StringOfChar(' ',12);
mdafl := StringOfChar(' ',12);
mdaol := StringOfChar(' ',12);
mdard := StringOfChar(' ',12);
mdawrp := StringOfChar(' ',12);
mdawrc := StringOfChar(' ',12);
addr :=13;
len :=40;
//Screen.Cursor := crHourglass;
SetLamp(3);
ret := ReadMDAType(hComDev,20,mdatype,mdamemsize,mdafl,mdaol,mdard,mdawrp,mdawrc);
Sleep(100);
SetLamp(2);
if ret<>0 then
begin
Screen.Cursor := crDefault;
Exit;
end;
while ( len>0 ) do
begin
if len>32 then
curlen := 32
else
curlen := len;
SetLamp(3);
ret := genReadCard(hComDev,20,addr,curlen,carddata);
if ret=0 then
begin
edit6.text:=edit6.text+carddata;
end;
SetLamp(2);
if ret<>0 then
begin
Screen.Cursor := crDefault;
Exit;
end;
len := len-curlen;
end;
Screen.Cursor := crDefault;
end;