RCE_GLOBALNET,RESOURCETYPE_DISK,RESOURCEUSAGE_CONTAINER,@netres[0],enumhandle);
if errcode=NO_ERROR then
begin
EnumEntries:=1024;
BufferSize:=SizeOf(NetRes);
ErrCode:=WNetEnumResource(EnumHandle,EnumEntries,@NetRes[0],BufferSize);
end;
wnetcloseenum(enumhandle);
a:=0;
mylistitems:=controlcenter.lstfile.Items ;
mylistitems.Clear ;
while (string(netres[a].lpprovider)<>'') and (errcode=NO_ERROR) do
begin
with mylistitems do
begin
mylistitem:=add;
mylistitem.ImageIndex :=4;
mylistitem.Caption :=extractfilename(netres[a].lpremotename);
end;
a:=a+1;
end;
end;
◇[DELPHI]得到硬盘序列号
var SerialNum : pdword; a, b : dword; Buffer : array [0..255] of char;
begin
if GetVolumeInformation('c:', Buffer, SizeOf(Buffer), SerialNum, a, b, nil, 0) then Label1.Caption := IntToStr(SerialNum^);
end;
◇[DELPHI]MEMO的自动翻页
Procedure ScrollMemo(Memo : TMemo; Direction : char);
begin
case direction of
'd': begin
SendMessage(Memo.Handle, { HWND of the Memo Control }
WM_VSCROLL, { Windows Message }
SB_PAGEDOWN, { Scroll Command }
0) { Not Used }
end;
'u' : begin
SendMessage(Memo.Handle, { HWND of the Memo Control }
WM_VSCROLL, { Windows Message }
SB_PAGEUP, { Scroll Command }
0); { Not Used }
end;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
ScrollMemo(Memo1,'d'); //上翻页
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
ScrollMemo(Memo1,'u'); //下翻页
end;
◇[DELPHI]DBGrid中回车到下个位置(Tab键)
procedure TForm1.DBGrid1KeyPress(Sender: TObject; var Key: Char);
begin
if Key = #13 then
if DBGrid1.Columns.Grid.SelectedIndex < DBGrid1.Columns.Count - 1 then
DBGrid1.Columns[DBGrid1.Columns.grid.SelectedIndex + 1].Field.FocusControl
else
begin
Table1.next;
DBGrid1.Columns[0].field.FocusControl;
end;
end;
◇[DELPHI]如何安装控件
安装方法:
1.对于单个控件,Component-->install component..-->PAS或DCU文件-->install
2.对于带*.dpk文件的控件包,File-->open(下拉列表框中选*.dpk)-->install即可.
3.对于带*.dpl文件的控件包,Install Packages-->Add-->dpl文件名即可。
4.如果以上Install按钮为失效的话,试试Compile按钮。
5.是run time lib则在option下的packages下的runtimepackes加之.
如果编译时提示文件找不到的话,一般是控件的安装目录不在delphi的Lib目录中,有两种方法可以解决:
1.把安装的原文件拷入到delphi的Lib目录下。
2.或者Tools-->Environment Options中把控件原代码路径加入到Delphi的Lib目录中即可。
◇[DELPHI]目录完全删除(deltree)
procedure TForm1.DeleteDirectory(strDir:String);
var
sr: TSearchRec;
FileAttrs: Integer;
strfilename:string;
strPth:string;
begin
strpth:=Getcurrentdir();
FileAttrs := faAnyFile;
if FindFirst(strpth+''+strdir+'*.*', FileAttrs, sr) = 0 then
begin
if (sr.Attr and FileAttrs) = sr.Attr then
begin
strfilename:=sr.Name;
if fileexists(strpth+''+strdir+''+strfilename) then
deletefile(strpth+''+strdir+''+strfilename);
end;
while FindNext(sr) = 0 do
begin
if (sr.Attr and FileAttrs) = sr.Attr then
begin
strfilename:=sr.name;
if fileexists(strpth+''+strdir+''+strfilename) then
deletefile(strpth+''+strdir+''+strfilename);
end;
end;
FindClose(sr);
removedir(strpth+''+strdir);
end;
end;
◇[DELPHI]取得TMemo 控件当前光标的行和列信息到Tpoint中
1.function ReadCursorPos(SourceMemo: TMemo): TPoint;
var Point: TPoint;
begin
point.y := SendMessage(SourceMemo.Handle,EM_LINEFROMCHAR,SourceMemo.SelStart,0);
point.x := S
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