基本上句柄是标志窗口,我可以根据句柄又可引申其中更多如类名,windowtitle等属性
所以基于这点,一般开发工具会提供查句柄,查类名等工具,vs提供的spy++就是一个很
好例子。现在教你们一查句柄知多少。其实也简单,下面贴出源代码
procedure Tform1.TimerTimer(Sender: TObject);
var
Pos: TPoint;
Handle: HWND;
ScreenDC: HDC;
Buf: array[0..1024] of Char;
ScreenColor: COLORREF;
begin
GetCursorPos(Pos); // 得到当前光标位置
Handle := WindowFromPoint(Pos); // 返回当前位置的句柄
HandleText.Caption := IntToStr(Handle);
GetClassName(Handle, Buf, 1024); // 得到类名
ClassNameText.Caption := Buf;
SendMessage(Handle, WM_GETTEXT, 33, Integer(@Buf)); // 得到标题
TitleText.Caption := Buf;
{ 得到光标处点的颜色 }
ScreenDC := GetDC(0);
ScreenColor := GetPixel(ScreenDC, Pos.X, Pos.Y);
Shape.Brush.Color := TColor(ScreenColor);
RGBColorText.Caption := 红: + IntToStr(GetRValue(ScreenColor)) +
绿: + IntToStr(GetGValue(ScreenColor)) + 蓝: +
IntToStr(GetBValue(ScreenColor));
ReleaseDC(0, ScreenDC);
DelphiColorText.Caption := Format(Delphi中颜色值:$00%2.2x%2.2x%2.2x, [GetBValue(ScreenColor),
GetGValue(ScreenColor), GetRValue(ScreenColor)]);
HTMLColorText.Caption := Format(HTML颜色值:#%2.2x%2.2x%2.2x, [GetRValue(ScreenColor),
GetGValue(ScreenColor), GetBValue(ScreenColor)]);
end;