盒子论坛 v2.1

unit LSTip;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes,commctrl,Graphics,DesignIntf,TypInfo,Controls;
//---------这是别人的代码--------
const
TTS_BALLOON    = $40;
TTM_SETTITLE = (WM_USER + 32);
//------------------------------

type
  TLSTip = class(TComponent)
  private
    { Private declarations }
  FBackColor:TColor;
  FTextColor:TColor;
  FTitle:string;
//---------这是别人的代码--------
  hTooltip: Cardinal;
  ti: TToolInfo;
  buffer : array[0..255] of char;
  procedure CreateToolTips(hWnd: Cardinal);
  procedure AddToolTip(hwnd: dword; lpti: PToolInfo; IconType: Integer; Text, Title: PChar;
BackColor,TextColor:TColor);
//----------------------------------------
  protected
    { Protected declarations }
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); override;
  procedure SetupTip;
  published
    { Published declarations }
    property BackColor:TColor read FBackColor write FBackColor;
    property TextColor:TColor read FTextColor write FTextColor;
    property Title:string read FTitle write FTitle;
  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('LSSoft', [TLSTip]);
end;

//---------这是别人的代码--------
procedure TLSTip.CreateToolTips(hWnd: Cardinal);
begin
hToolTip := CreateWindowEx(0, 'Tooltips_Class32', nil, TTS_ALWAYSTIP or TTS_BALLOON,
   Integer(CW_USEDEFAULT), Integer(CW_USEDEFAULT),Integer(CW_USEDEFAULT),
   Integer(CW_USEDEFAULT), hWnd, 0, hInstance, nil);
if hToolTip <> 0 then
begin
   SetWindowPos(hToolTip, HWND_TOPMOST, 0,0, 0, 0, SWP_NOMOVE or
     SWP_NOSIZE or SWP_NOACTIVATE);
   ti.cbSize := SizeOf(TToolInfo);
   ti.uFlags := TTF_SUBCLASS or TTF_TRANSPARENT;
   ti.hInst := hInstance;
end;
end;
procedure TLSTip.AddToolTip(hwnd: dword; lpti: PToolInfo; IconType: Integer; Text, Title: PChar;
BackColor,TextColor:TColor);
var Rect: TRect;
begin
if (hwnd <> 0) AND (GetClientRect(hwnd, Rect)) then
begin
   lpti.hwnd := hwnd;
   lpti.Rect := Rect;
   lpti.lpszText := Text;
   SendMessage(hToolTip, TTM_ADDTOOL, 0, Integer(lpti));
   FillChar(buffer, sizeof(buffer), #0);
   lstrcpy(buffer, Title);
   if (IconType > 3) or (IconType < 0) then IconType := 0;
   if BackColor<>0 then
   SendMessage(hToolTip, TTM_SETTIPBKCOLOR, BackColor, 0);
   if TextColor<>0 then
   SendMessage(hToolTip, TTM_SETTIPTEXTCOLOR, TextColor, 0);
   SendMessage(hToolTip, TTM_SETTITLE, IconType, Integer(@buffer));
end;
end;
//-----------------------------
//--------------以上两个过程用于添加汽泡,是别人的代码--------
//-------------以下是我写的------------------------------
procedure TLSTip.SetupTip;
var i:integer;propinfo:PPropInfo;Phandle:thandle;Vstr:string;
begin
for i:=0 to self.ComponentCount -1 do //进行组件的查找
begin
  propinfo:=GetPropInfo(components[i],'Handle');//检查是否有HANDLE属性
  if propinfo<>nil then //如果有HANDLE则继续
  begin
  Phandle:=GetPropValue(components[i],'Handle');//保存这个HANDLE
  propinfo:=GetPropInfo(components[i],'Hint');//检查是否有HINT属性
  if propinfo<>nil then//如果有HINT则继续
  begin
  CreateToolTips(Phandle);//调用过程CreateToolTips
  Vstr:=GetPropValue(components[i],'Hint');//取出HINT的值
  AddToolTip(Phandle, @ti, 1, Pchar(Vstr),pchar(FTitle),FBackColor,FTextColor);
  end;
  end;
end;
end;

constructor TLSTip.Create(AOwner: TComponent);
begin
  inherited;
  FTitle:='提示';
end;

end.

----------------------------------------------
^-^lifencheng^0^

作者：

lifencheng (lifencheng)	★☆☆☆☆	-
	盒子活跃会员

2004/3/1 19:34:58

1楼：

错啦错啦，这段代码根本就是错误，各位对不起啦,老大删了吧
procedure TLSTip.SetupTip;
var i:integer;propinfo:PPropInfo;Phandle:thandle;Vstr:string;
begin
for i:=0 to self.ComponentCount -1 do //进行组件的查找
begin
  propinfo:=GetPropInfo(components[i],'Handle');//检查是否有HANDLE属性
  if propinfo<>nil then //如果有HANDLE则继续
  begin
  Phandle:=GetPropValue(components[i],'Handle');//保存这个HANDLE
  propinfo:=GetPropInfo(components[i],'Hint');//检查是否有HINT属性
  if propinfo<>nil then//如果有HINT则继续
  begin
  CreateToolTips(Phandle);//调用过程CreateToolTips
  Vstr:=GetPropValue(components[i],'Hint');//取出HINT的值
  AddToolTip(Phandle, @ti, 1, Pchar(Vstr),pchar(FTitle),FBackColor,FTextColor);
  end;
  end;
end;
end;
----------------------------------------------
^-^lifencheng^0^

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