如何注册窗体热键?
注册2个个窗体热键,F1和Q,(非全局热键)
当按下F1的时候showmessage('你按下了F1')
当按下Q的时候showmessage('你按下了Q')
并且需要对鼠标的坐标做个判定,假如鼠标在(100-200,100-200)这个矩形范围内的时候才生效(相对于窗体的坐标,不是相对于屏幕),如果鼠标不在这个范围内则热键无效。应该怎么实现?请给出代码,谢谢
[解决办法]
桌面放1个label1用来显示鼠标位置
... private HotKey1,HotKey2:Integer; procedure HotKey(var Msg:Tmessage);message WM_HOTKEY; { Private declarations } public { Public declarations } end;var Form1: TForm1;implementation{$R *.dfm}procedure TForm1.HotKey(var Msg:Tmessage);var pt: TPoint;begin GetCursorPos(pt); pt:=ScreenToClient(pt); if (pt.X>100) and (pt.X<200) and (pt.Y>100) and (pt.Y<200) then begin case Msg.LParamHi of vk_F1:showmessage('你按下了F1'); 81:showmessage('你按下了Q'); end; end;end;procedure TForm1.FormCreate(Sender: TObject);begin HotKey1:=GlobalAddAtom('HotKey1')-$C000; HotKey2:=GlobalAddAtom('HotKey2')-$C000; RegisterHotKey(Handle,hotkey1,0,vk_F1); RegisterHotKey(Handle,hotkey2,0,81);end;procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);begin UnRegisterHotKey(handle,HotKey1); UnRegisterHotKey(handle,HotKey2);end;procedure TForm1.FormMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);begin label1.Caption:='X:'+IntToStr(X)+' Y:'+IntToStr(Y);end;
[解决办法]
如果是全局的hotkey,可以:
用RegisterHotKey, 下面的热键在全局(即使当前激活的是其他进程)有效procedure TForm1.FormCreate(Sender: TObject);beginRegisterHotKey(Handle,123,MOD_CONTROL,integer('A'));//123是自己定义的id ,热键是 ctrl+Aend;Tform1 类定义加上一行:procedure ON_WM_HOTKEY(var m:TMessage);message WM_HOTKEY;procedure TForm1.ON_WM_HOTKEY(var m: TMessage);beginif(m.WParam=123)then //如果id是123windows.Beep(1000,1000);end;