Winforms - Comment puis-je créer un personnalisé windows frontière et de la fermer/réduire les boutons?

Personnalisé titlebars/chrome dans une application WinForms

OriginalL'auteur

Ma tâche était de rendre active la fenêtre le plus sensible, vif que les autres, les fenêtres inactives de l'application. App a beaucoup de fenêtres ouvertes, certains modal, certains non modale et le parent MDI.

Vous pouvez vous pouvez utiliser quelque chose comme pas-un-frontière - un cadre à l'intérieur de la zone client. Voici l'extrait de code, une partie d'une classe de base (peut être utilisé directement dans un formulaire):

    #region Кастомизированное поведение - рамки, активность и т.д.
private bool isCurrentlyActive = false;
private bool childControlsAreHandled = false;
private Pen activeWindowFramePen, inactiveWindowFramePen;
private Point[] framePoints;
private void AddControlPaintHandler(Control ctrl)
{
ctrl.Paint += DrawWindowFrame;
if (ctrl.Controls != null)
{
foreach (Control childControl in ctrl.Controls)
{
AddControlPaintHandler(childControl);
}
}
}
protected override void OnActivated(EventArgs e)
{
base.OnActivated(e);
if ((this.childControlsAreHandled == false)
&& (WindowFrameType != Forms.WindowFrameType.NoFrame)
&& (this.MdiParent == null))
{
RecalculateWindowFramePoints();
AddControlPaintHandler(this);
this.childControlsAreHandled = true;
}
this.isCurrentlyActive = true;
if (InactiveWindowOpacity < 1)
{
base.Opacity = 1;
}
base.Invalidate(true);
}
protected override void OnDeactivate(EventArgs e)
{
base.OnDeactivate(e);
this.isCurrentlyActive = false;
if (InactiveWindowOpacity < 1)
{
base.Opacity = InactiveWindowOpacity;
}
base.Invalidate(true);
}
protected override void OnResizeEnd(EventArgs e)
{
base.OnResizeEnd(e);
this.framePoints = null;
RecalculateWindowFramePoints();
this.Invalidate(true);
}
private Pen ActivePen
{
get
{
if (this.isCurrentlyActive)
{
if (this.activeWindowFramePen == null)
{
this.activeWindowFramePen = new Pen(Color.FromArgb((int)(WindowFrameOpacity*255), WindowFrameActiveColor), WindowFrameSize * 2);
}
return this.activeWindowFramePen;
}
else
{
if (this.inactiveWindowFramePen == null)
{
this.inactiveWindowFramePen = new Pen(Color.FromArgb((int)(WindowFrameOpacity*255), WindowFrameInactiveColor), WindowFrameSize * 2);
}
return this.inactiveWindowFramePen;
}
}
}
private Point[] RecalculateWindowFramePoints()
{
if ((WindowFrameType == Forms.WindowFrameType.AllSides)
&& (this.framePoints != null)
&& (this.framePoints.Length != 5))
{
this.framePoints = null;
}
if ((WindowFrameType == Forms.WindowFrameType.LeftLine)
&& (this.framePoints != null)
&& (this.framePoints.Length != 2))
{
this.framePoints = null;
}
if (this.framePoints == null)
{
switch (WindowFrameType)
{
case Forms.WindowFrameType.AllSides:
this.framePoints = new Point[5]
{
new Point(this.ClientRectangle.X, this.ClientRectangle.Y),
new Point(this.ClientRectangle.X + this.ClientRectangle.Width, this.ClientRectangle.Y),
new Point(this.ClientRectangle.X + this.ClientRectangle.Width, this.ClientRectangle.Y + this.ClientRectangle.Height),
new Point(this.ClientRectangle.X, this.ClientRectangle.Y + this.ClientRectangle.Height),
new Point(this.ClientRectangle.X, this.ClientRectangle.Y)
};
break;
case Forms.WindowFrameType.LeftLine:
this.framePoints = new Point[2]
{
new Point(this.ClientRectangle.X, this.ClientRectangle.Y),
new Point(this.ClientRectangle.X, this.ClientRectangle.Y + this.ClientRectangle.Height)
};
break;
}
}
return this.framePoints;
}
private void DrawWindowFrame(object sender, PaintEventArgs e)
{
if (WindowFrameType == Forms.WindowFrameType.NoFrame)
{
return;
}
if ((this.framePoints == null) || (this.framePoints.Length == 0))
{
return;
}
Control ctrl = (Control)(sender);
//пересчитаем точки в координатах контрола.
List<Point> pts = new List<Point>();
foreach (var p in this.framePoints)
{
pts.Add(ctrl.PointToClient(this.PointToScreen(p)));
}
e.Graphics.DrawLines(ActivePen, pts.ToArray());
}
public static int WindowFrameSize = 2;
public static WindowFrameType WindowFrameType = Forms.WindowFrameType.NoFrame;
public static Color WindowFrameActiveColor = Color.YellowGreen;
public static Color WindowFrameInactiveColor = SystemColors.ControlDark;
public static double InactiveWindowOpacity = 1.0;
public static double WindowFrameOpacity = 0.3;
#endregion

Champs statiques de la classe sont initialisées à partir des paramètres de l'application de la forme (classe) - donc, toutes les formes de l'app a le même comportement.

Espoir qui aide à quelqu'un.

OriginalL'auteur Nikita