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我为我的软件 A 设置了全局快捷键。当我运行 A 时,无论 A 是否获得焦点(在窗口的最前台),只要按了我预先定义的快捷键后, A 都会响应(很讨厌)。能否使得:当 A 是焦点时才响应;不是焦点时,不响应。以下是我设置全局快捷键的步骤:
1.在 type 加入以下代码
procedure hotykey(var msg:TMessage); message WM_HOTKEY;
2.在 var 加入以下代码
idXmjc, idXm, idQq, idEmail, idYddh, idJtdh, idSsdh, idDhtUp, idDhtDown: Integer;
3.在 TForm1.FormCreate 加入以下代码
idXmjc:=GlobalAddAtom('hotkey');
RegisterHotKey(handle,idXmjc,mod_Shift,67);
idXm:=GlobalAddAtom('hotkey2');
RegisterHotKey(handle,idXm,mod_Shift,88);
idQq:=GlobalAddAtom('hotkey3');
RegisterHotKey(handle,idQq,mod_Shift,81);
idEmail:=GlobalAddAtom('hotkey4');
RegisterHotKey(handle,idEmail,mod_Shift,69);
idYddh:=GlobalAddAtom('hotkey5');
RegisterHotKey(handle,idYddh,mod_Shift,89);
idJtdh:=GlobalAddAtom('hotkey6');
RegisterHotKey(handle,idJtdh,mod_Shift,74);
idSsdh:=GlobalAddAtom('hotkey7');
RegisterHotKey(handle,idSsdh,mod_Shift,83);
idDhtUp:=GlobalAddAtom('hotkey8');
RegisterHotKey(handle,idDhtUp,mod_Shift,VK_Up);
idDhtDown:=GlobalAddAtom('hotkey9');
RegisterHotKey(handle,idDhtDown,mod_Shift,VK_Down);
4.在 TForm1.FormDestroy 加入以下代码
UnRegisterHotKey(handle,idXmjc);
UnRegisterHotKey(handle,idXm);
UnRegisterHotKey(handle,idQq);
UnRegisterHotKey(handle,idEmail);
UnRegisterHotKey(handle,idYddh);
UnRegisterHotKey(handle,idJtdh);
UnRegisterHotKey(handle,idSsdh);
UnRegisterHotKey(handle,idDhtUp);
UnRegisterHotKey(handle,idDhtDown);
5.在 MainForm 加入以下代码
procedure TForm1.hotykey(var msg:TMessage);
begin
if (msg.LParamLo=MOD_Shift) then
begin
case msg.LParamHi of
67 : cbSslx.ItemIndex := 0;
88 : cbSslx.ItemIndex := 1;
81 : cbSslx.ItemIndex := 2;
69 : cbSslx.ItemIndex := 3;
89 : cbSslx.ItemIndex := 4;
74 : cbSslx.ItemIndex := 5;
83 : cbSslx.ItemIndex := 6;
VK_Up : Table1.Prior;
VK_Down : Table1.next;
end;
edtSr.Text := '';
ActiveControl := edtSr;
end;
end;
1.在 type 加入以下代码
procedure hotykey(var msg:TMessage); message WM_HOTKEY;
2.在 var 加入以下代码
idXmjc, idXm, idQq, idEmail, idYddh, idJtdh, idSsdh, idDhtUp, idDhtDown: Integer;
3.在 TForm1.FormCreate 加入以下代码
idXmjc:=GlobalAddAtom('hotkey');
RegisterHotKey(handle,idXmjc,mod_Shift,67);
idXm:=GlobalAddAtom('hotkey2');
RegisterHotKey(handle,idXm,mod_Shift,88);
idQq:=GlobalAddAtom('hotkey3');
RegisterHotKey(handle,idQq,mod_Shift,81);
idEmail:=GlobalAddAtom('hotkey4');
RegisterHotKey(handle,idEmail,mod_Shift,69);
idYddh:=GlobalAddAtom('hotkey5');
RegisterHotKey(handle,idYddh,mod_Shift,89);
idJtdh:=GlobalAddAtom('hotkey6');
RegisterHotKey(handle,idJtdh,mod_Shift,74);
idSsdh:=GlobalAddAtom('hotkey7');
RegisterHotKey(handle,idSsdh,mod_Shift,83);
idDhtUp:=GlobalAddAtom('hotkey8');
RegisterHotKey(handle,idDhtUp,mod_Shift,VK_Up);
idDhtDown:=GlobalAddAtom('hotkey9');
RegisterHotKey(handle,idDhtDown,mod_Shift,VK_Down);
4.在 TForm1.FormDestroy 加入以下代码
UnRegisterHotKey(handle,idXmjc);
UnRegisterHotKey(handle,idXm);
UnRegisterHotKey(handle,idQq);
UnRegisterHotKey(handle,idEmail);
UnRegisterHotKey(handle,idYddh);
UnRegisterHotKey(handle,idJtdh);
UnRegisterHotKey(handle,idSsdh);
UnRegisterHotKey(handle,idDhtUp);
UnRegisterHotKey(handle,idDhtDown);
5.在 MainForm 加入以下代码
procedure TForm1.hotykey(var msg:TMessage);
begin
if (msg.LParamLo=MOD_Shift) then
begin
case msg.LParamHi of
67 : cbSslx.ItemIndex := 0;
88 : cbSslx.ItemIndex := 1;
81 : cbSslx.ItemIndex := 2;
69 : cbSslx.ItemIndex := 3;
89 : cbSslx.ItemIndex := 4;
74 : cbSslx.ItemIndex := 5;
83 : cbSslx.ItemIndex := 6;
VK_Up : Table1.Prior;
VK_Down : Table1.next;
end;
edtSr.Text := '';
ActiveControl := edtSr;
end;
end;