Le permite especificar un icono para representar un control en un contenedor, como el Diseñador de formularios de Microsoft Visual Studio.
Espacio de nombres: System.Drawing
Ensamblado: System.Drawing (en system.drawing.dll)
Visual Basic (Declaración)
<AttributeUsageAttribute(AttributeTargets.Class)> _
Public Class ToolboxBitmapAttribute
Inherits Attribute
Dim instance As ToolboxBitmapAttribute
[AttributeUsageAttribute(AttributeTargets.Class)]
public class ToolboxBitmapAttribute : Attribute
[AttributeUsageAttribute(AttributeTargets::Class)]
public ref class ToolboxBitmapAttribute : public Attribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Class) */
public class ToolboxBitmapAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Class)
public class ToolboxBitmapAttribute extends Attribute
Se puede aplicar un objeto ToolboxBitmapAttribute a un control de manera que los contenedores, como el Diseñador de formularios de Microsoft Visual Studio, puedan recuperar un icono que represente el control. El mapa de bits del icono puede encontrarse en un archivo por sí solo o incrustado en el ensamblado que contiene el control. El tamaño del mapa de bits que se incrusta en el ensamblado del control (o que se almacena en un archivo independiente) debe ser de 16 por 16. El método GetImage de un objeto ToolboxBitmapAttribute puede devolver la imagen pequeña de 16 por 16 o una imagen grande de 32 por 32 creada mediante un ajuste de escala de la imagen pequeña.
En el ejemplo de código siguiente se muestra cómo utilizar la clase ToolboxBitmapAttribute para establecer stop.bmp como el icono del Cuadro de herramientas para StopSignControl. En este ejemplo se supone la existencia de un mapa de bits de 16 x 16 píxeles denominado stop.bmp en c:\.
<System.Drawing.ToolboxBitmap("c:\stop.bmp")> _
Public Class StopSignControl
Inherits System.Windows.Forms.UserControl
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Button1 As System.Windows.Forms.Button
Public Sub New()
MyBase.New()
Me.Label1 = New System.Windows.Forms.Label
Me.Button1 = New System.Windows.Forms.Button
Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", _
12.0F, System.Drawing.FontStyle.Regular, _
System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label1.ForeColor = System.Drawing.Color.Red
Me.Label1.Location = New System.Drawing.Point(24, 56)
Me.Label1.Name = "Label1"
Me.Label1.TabIndex = 0
Me.Label1.Text = "Stop!"
Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
Me.Button1.Enabled = False
Me.Button1.Location = New System.Drawing.Point(56, 88)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(40, 32)
Me.Button1.TabIndex = 1
Me.Button1.Text = "stop"
Me.Controls.Add(Me.Button1)
Me.Controls.Add(Me.Label1)
Me.Name = "StopSignControl"
End Sub
Private Sub StopSignControl_MouseEnter(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles MyBase.MouseEnter
Label1.Text.ToUpper()
Label1.Font = New System.Drawing.Font(Label1.Font.FontFamily, _
14.0F, System.Drawing.FontStyle.Bold)
Button1.Enabled = True
End Sub
Private Sub StopSignControl_MouseLeave(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles MyBase.MouseLeave
Label1.Text.ToLower()
Label1.Font = New System.Drawing.Font(Label1.Font.FontFamily, 12.0F, _
System.Drawing.FontStyle.Regular)
Button1.Enabled = False
End Sub
End Class
[System.Drawing.ToolboxBitmap("c:\\stop.bmp")]
public class StopSignControl:
System.Windows.Forms.UserControl
{
internal System.Windows.Forms.Label Label1;
internal System.Windows.Forms.Button Button1;
public StopSignControl() : base()
{
this.Label1 = new System.Windows.Forms.Label();
this.Button1 = new System.Windows.Forms.Button();
this.Label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 12.0F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte) 0));
this.Label1.ForeColor = System.Drawing.Color.Red;
this.Label1.Location = new System.Drawing.Point(24, 56);
this.Label1.Name = "Label1";
this.Label1.TabIndex = 0;
this.Label1.Text = "Stop!";
this.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
this.Button1.Enabled = false;
this.Button1.Location = new System.Drawing.Point(56, 88);
this.Button1.Name = "Button1";
this.Button1.Size = new System.Drawing.Size(40, 32);
this.Button1.TabIndex = 1;
this.Button1.Text = "stop";
this.Controls.Add(this.Button1);
this.Controls.Add(this.Label1);
this.Name = "StopSignControl";
}
private void StopSignControl_MouseEnter(object sender, System.EventArgs e)
{
Label1.Text.ToUpper();
Label1.Font = new System.Drawing.Font(Label1.Font.FontFamily, 14.0F,
System.Drawing.FontStyle.Bold);
Button1.Enabled = true;
}
private void StopSignControl_MouseLeave(object sender, System.EventArgs e)
{
Label1.Text.ToLower();
Label1.Font = new System.Drawing.Font(Label1.Font.FontFamily, 12.0F,
System.Drawing.FontStyle.Regular);
Button1.Enabled = false;
}
}
[ToolboxBitmap("c:\\stop.bmp")]
public ref class StopSignControl:
public System::Windows::Forms::UserControl
{
private:
Label^ label1;
private:
Button^ button1;
public:
StopSignControl() : UserControl()
{
this->label1 = gcnew System::Windows::Forms::Label();
this->button1 = gcnew System::Windows::Forms::Button();
this->label1->Font = gcnew System::Drawing::Font(
"Microsoft Sans Serif", 12.0F,
System::Drawing::FontStyle::Regular,
System::Drawing::GraphicsUnit::Point, ((Byte) 0));
this->label1->ForeColor = System::Drawing::Color::Red;
this->label1->Location = System::Drawing::Point(24, 56);
this->label1->Name = "Label1";
this->label1->TabIndex = 0;
this->label1->Text = "Stop!";
this->label1->TextAlign =
System::Drawing::ContentAlignment::MiddleCenter;
this->button1->Enabled = false;
this->button1->Location = System::Drawing::Point(56, 88);
this->button1->Name = "Button1";
this->button1->Size = System::Drawing::Size(40, 32);
this->button1->TabIndex = 1;
this->button1->Text = "stop";
this->Controls->Add(this->button1);
this->Controls->Add(this->label1);
this->Name = "StopSignControl";
this->MouseEnter +=
gcnew EventHandler(this,
&StopSignControl::StopSignControl_MouseEnter);
this->MouseLeave +=
gcnew EventHandler(this,
&StopSignControl::StopSignControl_MouseLeave);
}
private:
void StopSignControl_MouseEnter(Object^ sender,
EventArgs^ e)
{
label1->Text = label1->Text->ToUpper();
label1->Font = gcnew System::Drawing::Font(label1->Font->FontFamily,
14.0F, FontStyle::Bold);
button1->Enabled = true;
}
private:
void StopSignControl_MouseLeave(Object^ sender,
EventArgs^ e)
{
label1->Text = label1->Text->ToLower();
label1->Font = gcnew System::Drawing::Font(label1->Font->FontFamily,
12.0F, FontStyle::Regular);
button1->Enabled = false;
}
};
/** @attribute System.Drawing.ToolboxBitmap("c:\\stop.bmp")
*/
public class StopSignControl extends System.Windows.Forms.UserControl
{
System.Windows.Forms.Label label1;
System.Windows.Forms.Button button1;
public StopSignControl()
{
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.label1.set_Font(new System.Drawing.Font("Microsoft Sans Serif",
12, System.Drawing.FontStyle.Regular,
System.Drawing.GraphicsUnit.Point, (ubyte)0));
this.label1.set_ForeColor(System.Drawing.Color.get_Red());
this.label1.set_Location(new System.Drawing.Point(24, 56));
this.label1.set_Name("label1");
this.label1.set_TabIndex(0);
this.label1.set_Text("Stop!");
this.label1.set_TextAlign(System.Drawing.ContentAlignment.MiddleCenter);
this.button1.set_Enabled(false);
this.button1.set_Location(new System.Drawing.Point(56, 88));
this.button1.set_Name("button1");
this.button1.set_Size(new System.Drawing.Size(40, 32));
this.button1.set_TabIndex(1);
this.button1.set_Text("stop");
this.get_Controls().Add(this.button1);
this.get_Controls().Add(this.label1);
this.set_Name("StopSignControl");
} //StopSignControl
private void StopSignControl_MouseEnter(Object sender, System.EventArgs e)
{
label1.set_Text(label1.get_Text().ToUpper());
label1.set_Font(new Font(label1.get_Font().get_FontFamily(), 14,
FontStyle.Bold));
button1.set_Enabled(true);
} //StopSignControl_MouseEnter
private void StopSignControl_MouseLeave(Object sender, System.EventArgs e)
{
label1.set_Text(label1.get_Text().ToLower());
label1.set_Font(new Font(label1.get_Font().get_FontFamily(), 12,
System.Drawing.FontStyle.Regular));
button1.set_Enabled(false);
} //StopSignControl_MouseLeave
} //StopSignControl
System.Object
System.Attribute
System.Drawing.ToolboxBitmapAttribute
Seguridad para subprocesos
Los miembros estáticos públicos (Shared en Visual Basic) de este tipo son seguros para la ejecución de subprocesos. No se garantiza que los miembros de instancias sean seguros para la ejecución de subprocesos.
Windows 98, Windows 2000 SP4, Windows Millennium, Windows Server 2003, Windows XP Media Center, Windows XP Professional x64, Windows XP SP2, Windows XP Starter Edition
.NET Framework no admite todas las versiones de cada plataforma. Para obtener una lista de las versiones admitidas, vea Requisitos del sistema.
.NET Framework
Compatible con: 2.0, 1.1, 1.0