当同一个表单打开另一个表单时，如何关注表单？
[英]How to have focus on a form when this same form open another form?
问题描述
So, i'm setting a typing application, and there's a pause key that stop a timer and prevent you from typing unless you exit the "pause" state. 
因此，我正在设置一个打字应用程序，并且有一个暂停键可以停止计时器并阻止您输入，除非您退出“暂停”状态。 This "pause" state grant you access to 2 other buttons, one called "Help" and the other one, well he isn't very important for this questions. 这种“暂停”状态允许您访问另外两个按钮，一个名为“帮助”，另一个按钮，这对于这个问题并不是很重要。
When I click on "Help" a form containing some help informations open, when i closed the help form, i can't exit the pause state when i press on the pause button, it's like i've lost the focus or the program can't exit the code from the help button (The main forms doesn't close when the help forms open.) 当我点击“帮助”打开包含一些帮助信息的表单时，当我关闭帮助表单时，当我按下暂停按钮时，我无法退出暂停状态，这就像我失去焦点或程序可以从帮助按钮退出代码（当帮助表单打开时，主窗体不会关闭。）
Here's my help button 这是我的帮助按钮
private void btnAide_Click(object sender, EventArgs e)
{
HelpForm fE = new HelpForm();
fE.Visible = true;
this.Activate();
}
Here's what happen when I hit the pause key 这是我点击暂停键时发生的事情
case Keys.OemQuestion:
if (bShift)
{ strToucheAppuyee = "°"; }
else
{
if (timer1.Enabled)
{
timer1.Stop();
plPanneauMot.Enabled = false;
btnAide.Enabled = true;
btnCritereMedaille.Enabled = true;
bPause = true;
bPauseTouche = true;
}
else
{
timer1.Start();
plPanneauMot.Enabled = true;
btnAide.Enabled = false;
btnCritereMedaille.Enabled = false;
bPause = false;
bPauseTouche = true;
}
}
And... Here's my code for catching key stroke 而且......这是我捕捉击键的代码
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
try
{
// Colorie les touches selon leur disposition sur le clavier
if (bPause == true)
{
if (e.KeyCode == Keys.OemQuestion)
{
bPause = false;
bPauseTouche = false;
plPanneauMot.Enabled = true;
btnCritereMedaille.Enabled = false;
btnAide.Enabled = false;
timer1.Start();
}
}
else if (bPause == false)
{
bPauseTouche = false;
// Récupère la valeur de chaque touche appuyé ainsi que les trema, circonflexe, majuscule, etc.
switch (e.KeyCode)
{
case Keys.A:
if (bCirconflexe == true && bCapital == true)
{ strToucheAppuyee = "Â"; } // Circonflexe majuscule
else if (bTrema == true && bCapital == true)
{ strToucheAppuyee = "Ä"; } // Trema majuscule
else if (bShift == true || bCapital == true)
{ strToucheAppuyee = "A"; } // Majuscule
else if (bCirconflexe)
{ strToucheAppuyee = "â"; } // Circonflexe minuscule
else if (bTrema)
{ strToucheAppuyee = "ä"; } // Trema minuscule
else
{ strToucheAppuyee = "a"; } // Minuscule
BoolFalse();
break;
case Keys.B:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "B"; } // Majuscule
else
{ strToucheAppuyee = "b"; } // Minuscule
BoolFalse();
break;
case Keys.C:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "C"; } // Majuscule
else
{ strToucheAppuyee = "c"; } // Minuscule
BoolFalse();
break;
case Keys.D:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "D"; } // Majuscule
else
{ strToucheAppuyee = "d"; } // Minuscule
BoolFalse();
break;
case Keys.E:
if (bCirconflexe == true && bCapital == true)
{ strToucheAppuyee = "Ê"; } // Circonflexe majuscule
else if (bTrema == true && bCapital == true)
{ strToucheAppuyee = "Ë"; } // Trema majuscule
else if (bShift == true || bCapital == true)
{ strToucheAppuyee = "E"; } // Majuscule
else if (bCirconflexe)
{ strToucheAppuyee = "ê"; } // Circonflexe minuscule
else if (bTrema)
{ strToucheAppuyee = "ë"; } // Trema minuscule
else
{ strToucheAppuyee = "e"; } // Minuscule
BoolFalse();
break;
case Keys.F:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "F"; } // Majuscule
else
{ strToucheAppuyee = "f"; } // Minuscule
BoolFalse();
break;
case Keys.G:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "G"; } // Majuscule
else
{ strToucheAppuyee = "g"; } // Minuscule
BoolFalse();
break;
case Keys.H:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "H"; } // Majuscule
else
{ strToucheAppuyee = "h"; } // Minuscule
BoolFalse();
break;
case Keys.I:
if (bCirconflexe == true && bCapital == true)
{ strToucheAppuyee = "Î"; } // Circonflexe majuscule
else if (bTrema == true && bCapital == true)
{ strToucheAppuyee = "Ï"; } // Trema majuscule
else if (bShift == true || bCapital == true)
{ strToucheAppuyee = "I"; } // Majuscule
else if (bCirconflexe)
{ strToucheAppuyee = "î"; } // Circonflexe minuscule
else if (bTrema)
{ strToucheAppuyee = "ï"; } // Trema minuscule
else
{ strToucheAppuyee = "i"; } // Minuscule
BoolFalse();
break;
case Keys.J:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "J"; } // Majuscule
else
{ strToucheAppuyee = "j"; } // Minuscule
BoolFalse();
break;
case Keys.K:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "K"; } // Majuscule
else
{ strToucheAppuyee = "k"; } // Minuscule
BoolFalse();
break;
case Keys.L:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "L"; } // Majuscule
else
{ strToucheAppuyee = "l"; } // Minuscule
BoolFalse();
break;
case Keys.M:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "M"; } // Majuscule
else
{ strToucheAppuyee = "m"; } // Minuscule
BoolFalse();
break;
case Keys.N:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "N"; } // Majuscule
else
{ strToucheAppuyee = "n"; } // Minuscule
BoolFalse();
break;
case Keys.O:
if (bCirconflexe == true && bCapital == true)
{ strToucheAppuyee = "Ô"; } // Circonflexe majuscule
else if (bTrema == true && bCapital == true)
{ strToucheAppuyee = "Ö"; } // Trema majuscule
else if (bShift == true || bCapital == true)
{ strToucheAppuyee = "O"; } // Majuscule
else if (bCirconflexe)
{ strToucheAppuyee = "ô"; } // Circonflexe minuscule
else if (bTrema)
{ strToucheAppuyee = "ö"; } // Trema minuscule
else
{ strToucheAppuyee = "o"; } // Minuscule
BoolFalse();
break;
case Keys.P:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "P"; } // Majuscule
else
{ strToucheAppuyee = "p"; } // Minuscule
BoolFalse();
break;
case Keys.Q:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "Q"; } // Majuscule
else
{ strToucheAppuyee = "q"; } // Minuscule
BoolFalse();
break;
case Keys.R:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "R"; } // Majuscule
else
{ strToucheAppuyee = "r"; } // Minuscule
BoolFalse();
break;
case Keys.S:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "S"; } // Majuscule
else
{ strToucheAppuyee = "s"; } // Minuscule
BoolFalse();
break;
case Keys.T:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "T"; } // Majuscule
else
{ strToucheAppuyee = "t"; } // Minuscule
BoolFalse();
break;
case Keys.U:
if (bShift == true && bCirconflexe == true && bCapital == true)
{ strToucheAppuyee = "Ù"; } // Accent grave minuscule
else if (bCirconflexe == true && bCapital == true)
{ strToucheAppuyee = "Û"; } // Circonflexe majuscule
else if (bTrema == true && bCapital == true)
{ strToucheAppuyee = "Ü"; } // Trema majuscule
else if (bShift == true && bCirconflexe == true)
{ strToucheAppuyee = "ù"; } // Accent grave minuscule
else if (bShift == true || bCapital == true)
{ strToucheAppuyee = "U"; } // Majuscule
else if (bCirconflexe)
{ strToucheAppuyee = "û"; } // Circonflexe minuscule
else if (bTrema)
{ strToucheAppuyee = "ü"; } // Trema minuscule
else
{ strToucheAppuyee = "u"; } // Minuscule
BoolFalse();
break;
case Keys.V:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "V"; } // Majuscule
else
{ strToucheAppuyee = "v"; } // Minuscule
BoolFalse();
break;
case Keys.W:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "W"; } // Majuscule
else
{ strToucheAppuyee = "w"; } // Minuscule
BoolFalse();
break;
case Keys.X:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "X"; } // Majuscule
else
{ strToucheAppuyee = "x"; } // Minuscule
BoolFalse();
break;
case Keys.Y:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "Y"; } // Majuscule
else
{ strToucheAppuyee = "y"; } // Minuscule
BoolFalse();
break;
case Keys.Z:
if (bShift == true || bCapital == true)
{ strToucheAppuyee = "Z"; } // Majuscule
else
{ strToucheAppuyee = "z"; } // Minuscule
BoolFalse();
break;
case Keys.D0:
if (bShift)
{ strToucheAppuyee = "="; }
else
{ strToucheAppuyee = "0"; }
BoolFalse();
break;
case Keys.D1:
if (bShift)
{ strToucheAppuyee = "+"; }
else
{ strToucheAppuyee = "1"; }
BoolFalse();
break;
case Keys.D2:
if (bShift)
{ strToucheAppuyee = "\""; }
else if (bAltGr)
{ strToucheAppuyee = "@"; }
else
{ strToucheAppuyee = "2"; }
BoolFalse();
break;
case Keys.D3:
if (bShift)
{ strToucheAppuyee = "*"; }
else if (bAltGr)
{ strToucheAppuyee = "#"; }
else
{ strToucheAppuyee = "3"; }
BoolFalse();
break;
case Keys.D4:
if (bShift)
{ strToucheAppuyee = "ç"; }
else
{ strToucheAppuyee = "4"; }
BoolFalse();
break;
case Keys.D5:
if (bShift)
{ strToucheAppuyee = "%"; }
else
{ strToucheAppuyee = "5"; }
BoolFalse();
break;
case Keys.D6:
if (bShift)
{ strToucheAppuyee = "&"; } // Ne fonctionne pas car elle ne s'affiche pas
else
{ strToucheAppuyee = "6"; }
BoolFalse();
break;
case Keys.D7:
if (bShift)
{ strToucheAppuyee = "/"; }
else if (bAltGr)
{ strToucheAppuyee = "|"; }
else
{ strToucheAppuyee = "7"; }
BoolFalse();
break;
case Keys.D8:
if (bShift)
{ strToucheAppuyee = "("; }
else
{ strToucheAppuyee = "8"; }
BoolFalse();
break;
case Keys.D9:
if (bShift)
{ strToucheAppuyee = ")"; }
else
{ strToucheAppuyee = "9"; }
BoolFalse();
break;
case Keys.Space:
strToucheAppuyee = " ";
BoolFalse();
break;
case Keys.OemPeriod:
if (bShift)
{ strToucheAppuyee = ":"; }
else
{ strToucheAppuyee = "."; }
BoolFalse();
break;
case Keys.Oemcomma:
if (bShift)
{ strToucheAppuyee = ";"; }
else
{ strToucheAppuyee = ","; }
BoolFalse(); ;
break;
case Keys.OemOpenBrackets:
if (bShift)
{ strToucheAppuyee = "?"; }
else
{ strToucheAppuyee = "'"; }
BoolFalse();
break;
case Keys.OemMinus:
if (bShift)
{ strToucheAppuyee = "_"; }
else
{ strToucheAppuyee = "-"; }
BoolFalse();
break;
case Keys.Oem7:
if (bShift)
{ strToucheAppuyee = "ö"; }
else
{ strToucheAppuyee = "é"; }
BoolFalse();
break;
case Keys.Oem5:
if (bShift)
{ strToucheAppuyee = "ä"; }
else if (bAltGr)
{ strToucheAppuyee = "{"; }
else
{ strToucheAppuyee = "à"; }
BoolFalse();
break;
case Keys.Oem1: // è
if (bShift)
{ strToucheAppuyee = "ü"; }
else if (bAltGr)
{ strToucheAppuyee = "["; }
else
{ strToucheAppuyee = "è"; }
BoolFalse();
break;
case Keys.Oem8:
if (bShift)
{ strToucheAppuyee = "£"; }
else if (bAltGr)
{ strToucheAppuyee = "}"; }
else
{ strToucheAppuyee = "$"; }
BoolFalse();
break;
case Keys.OemBackslash:
if (bShift)
{ strToucheAppuyee = ">"; }
else if (bAltGr)
{ strToucheAppuyee = "\\"; }
else
{ strToucheAppuyee = "<"; }
BoolFalse();
break;
case Keys.OemQuestion:
if (bShift)
{ strToucheAppuyee = "°"; }
else
{
if (timer1.Enabled)
{
timer1.Stop();
plPanneauMot.Enabled = false;
btnAide.Enabled = true;
btnCritereMedaille.Enabled = true;
bPause = true;
bPauseTouche = true;
}
else
{
timer1.Start();
plPanneauMot.Enabled = true;
btnAide.Enabled = false;
btnCritereMedaille.Enabled = false;
bPause = false;
bPauseTouche = true;
}
}
BoolFalse();
break;
case Keys.Oemtilde: // Les 2 points, ex : ë
if (bShift)
{
strToucheAppuyee = "!";
BoolFalse();
}
else if (bAltGr)
{ strToucheAppuyee = "]"; }
else
{
BoolFalse();
bTrema = true;
bPasErreur = true;
}
break;
case Keys.Oem6: // ^ Ex : ê
if (bAltGr)
{
strToucheAppuyee = "~";
BoolFalse();
}
else if (bShift)
{
BoolFalse();
bShift = true;
bCirconflexe = true;
bPasErreur = true;
}
else
{
BoolFalse();
bCirconflexe = true;
bPasErreur = true;
}
break;
case Keys.ShiftKey: // Shift
BoolFalse();
bShift = true;
bPasErreur = true;
break;
case Keys.ControlKey: // Ctrl
BoolFalse();
bCtrl = true;
bPasErreur = true;
if (bAlt)
{ bAltGr = true; }
break;
case Keys.Menu: // Alt
BoolFalse();
bAlt = true;
bPasErreur = true;
if (bCtrl)
{ bAltGr = true; }
break;
case Keys.Capital: // Majuscule
BoolFalse();
if (bCapital)
{
bCapital = false;
lblMajActiver.Visible = false;
}
else
{
bCapital = true;
lblMajActiver.Visible = true;
}
bPasErreur = true;
break;
}
// Calcul le nombre de lettre par minute
dblLPMMoyenne = dblLPM * 60 / dblSecondeLPM;
lblLettreMinuteChiffre.Text = Convert.ToString(dblLPMMoyenne = Math.Round(dblLPMMoyenne, 2));
// S'il appuie sur une lettre spécial (Trema, AltGr, Alt, Pause, Shift, etc.) il ne fait rien
if (bPasErreur == true)
{ }
// Sinon il vérifie que la touche est la bonne et la transforme en blanc pour l'effacer mais pas entièrement
else if (strToucheAppuyee == _lettres_liste.ElementAt(iLettreAppuyeeCompteur) && bPause == false)
{
if (iLettreAppuyeeCompteur != iCharCompteur - 1)
{
SwitchCouleur();
}
if (bErreurUnique == false)
{
_nomLabel.ElementAt(iLettreAppuyeeCompteur).ForeColor = System.Drawing.Color.Red;
}
else
{ _nomLabel.ElementAt(iLettreAppuyeeCompteur).ForeColor = System.Drawing.Color.Gray; }
_nomLabel.ElementAt(iLettreAppuyeeCompteur).BackColor = System.Drawing.Color.Transparent;
iLettreAppuyeeCompteur++;
bErreurUnique = true;
dblLPM++;
}
// Si c'est faux il rajoute une erreur et fait en sorte avec bErreurUnique que il ne puisse pas faire faux plus d'une fois à la même lettre
else
{
_nomLabel.ElementAt(iLettreAppuyeeCompteur).ForeColor = System.Drawing.Color.Red;
if (bErreurUnique)
{ iNbErreur++; }
bErreurUnique = false;
lblNombreFauteChiffre.Text = iNbErreur.ToString();
}
// Si le nombre de lettre appuyé est égal au nombre de lettre total, il arrête l'exercice et affiche la suite
if (iLettreAppuyeeCompteur == iCharCompteur || System.IO.File.ReadAllText(@"../../../../../Texte/ExercicePersonnel.txt") == "true" && iLettreAppuyeeCompteur == iCharCompteur - 2)
{
timer1.Stop();
btnResultat.Visible = true;
lblExerciceFini.Visible = true;
for (int i = 0; i <= _nomLabel.Count - 1; i++)
{
if (_nomLabel.ElementAt(i).ForeColor == System.Drawing.Color.Red)
{ }
else
{ _nomLabel.ElementAt(i).ForeColor = SystemColors.ControlText; }
_nomLabel.ElementAt(i).BackColor = SystemColors.ControlDark;
}
}
}
}
catch
{ }
}
2 个解决方案
解决方案1
0 2019-03-27 09:57:03
If I understand you correct, you are catching key strokes on your main form. 如果我理解你是正确的，那么你正在主表格上抓住击键。
So that is why you call this.Activate() after opening the help form. 这就是为什么在打开帮助表单后调用this.Activate()原因。
However, once the user does anything at the help form, just clicking on it, the main form will lose focus. 但是，一旦用户在帮助表单上执行任何操作，只需单击它，主表单就会失去焦点。
So you need to pass a handle to your main form to the help form, and when closing the help form you can use this handle to re-activate the main form. 因此，您需要将主窗体的句柄传递给帮助表单，关闭帮助表单时，您可以使用此句柄重新激活主窗体。
in your help form, write a constructor like this 在您的帮助表单中，编写这样的构造函数
private Form _mainForm = null;
public HelpForm(Form mainForm)
{
InitializeComponent();
_mainForm = mainForm;
}
// subscribe to the FormClosed event, and use this code
private void HelpForm_FormClosed(object sender, FormClosedEventArgs e)
{
if (_mainForm != null)
_mainForm.Activate();
)
now in your mainform call it like this 现在在你的mainform中这样称呼它
private void btnAide_Click(object sender, EventArgs e)
{
HelpForm fE = new HelpForm(this);
fE.Visible = true;
this.Activate();
}
EDIT 编辑
Another method that could help is Activating the main form, every time the help form gets deactivated 每次帮助表单被取消激活时，另一种可能有用的方法是激活主表单
// subscribe to the Deactivate event on the help form
private void FormBase_Deactivate(object sender, EventArgs e)
{
if (_mainForm != null)
_mainForm.Activate();
}
解决方案2
0 2019-03-27 10:10:22
关闭帮助窗口时，将命令“.Focus（）”添加到暂停控件。
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.
相关问题
关闭另一个“表单”时如何将焦点集中到“标签页” - how to `focus` to `tabpage` when close another `form`
如何检测表单何时从另一个仍然打开的表单关闭？ - How to detect when a form is closing from another form still open?
单击按钮时如何关闭表单并在面板中打开另一个表单？ - How to close form and open another form in a panel when clicking a button?
如何从另一个表单通用地打开一个表单？ - how to generically open a form from another form?
如何从另一个表格打开一个新表格 - How to open a new form from another form
如果窗体位于另一个文件夹中，如何打开窗体 - How to open a form, if the form is located in another folder
关闭另一个表单时如何在文本框上设置焦点？ - How to set focus on a textbox when I close another Form?
如何关闭窗体并打开另一个 - How to close form and open another
显示另一张表格时，如何防止原始表格失去焦点？ - How do I prevent the original form from losing focus when I show another form?
如何在C＃中聚焦于另一种形式 - How to Focus to another form in C#
相关标签