ProgressBarRenderer.DrawVerticalBar(Graphics, Rectangle) Method

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Draws an empty progress bar control that fills in vertically.

public:
 static void DrawVerticalBar(System::Drawing::Graphics ^ g, System::Drawing::Rectangle bounds);

public static void DrawVerticalBar (System.Drawing.Graphics g, System.Drawing.Rectangle bounds);

static member DrawVerticalBar : System.Drawing.Graphics * System.Drawing.Rectangle -> unit

Public Shared Sub DrawVerticalBar (g As Graphics, bounds As Rectangle)

Parameters

g

Graphics

The Graphics used to draw the progress bar.

bounds

Rectangle

The Rectangle that specifies the bounds of the progress bar.

Exceptions

InvalidOperationException

The operating system does not support visual styles.

-or-

Visual styles are disabled by the user in the operating system.

-or-

Visual styles are not applied to the client area of application windows.

Examples

The following code example uses the DrawVerticalBar method in a custom control's OnPaint method to draw an empty progress bar. This code example is part of a larger example provided for the ProgressBarRenderer class.

    // Draw the progress bar in its normal state.
protected:
    virtual void OnPaint(PaintEventArgs^ e) override
    {
        __super::OnPaint(e);

        if (ProgressBarRenderer::IsSupported)
        {
            ProgressBarRenderer::DrawVerticalBar(e->Graphics, 
                ClientRectangle);
            this->Parent->Text = "VerticalProgressBar Enabled";
        }
        else
        {
            this->Parent->Text = "VerticalProgressBar Disabled";
        }
    }

// Draw the progress bar in its normal state.
protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    if (ProgressBarRenderer.IsSupported)
    {
        ProgressBarRenderer.DrawVerticalBar(e.Graphics,
            ClientRectangle);
        this.Parent.Text = "VerticalProgressBar Enabled";
    }
    else
    {
        this.Parent.Text = "VerticalProgressBar Disabled";
    }
}

' Draw the progress bar in its normal state.
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs) 
    MyBase.OnPaint(e)
    
    If ProgressBarRenderer.IsSupported Then
        ProgressBarRenderer.DrawVerticalBar(e.Graphics, ClientRectangle)
        Me.Parent.Text = "VerticalProgressBar Enabled"
    Else
        Me.Parent.Text = "VerticalProgressBar Disabled"
    End If

End Sub

Remarks

Before using this method, you should verify that the IsSupported property returns true.