TextRenderer.MeasureText Método

public:
 static System::Drawing::Size MeasureText(System::String ^ text, System::Drawing::Font ^ font);

public static System.Drawing.Size MeasureText(string text, System.Drawing.Font font);

static member MeasureText : string * System.Drawing.Font -> System.Drawing.Size

Public Shared Function MeasureText (text As String, font As Font) As Size

Parâmetros

Retornos

O Size, em pixels, de text desenhado em uma única linha com o especificado font. Você pode manipular como o texto é desenhado usando uma das DrawText(IDeviceContext, String, Font, Rectangle, Color, TextFormatFlags) sobrecargas que usa um TextFormatFlags parâmetro. Por exemplo, o comportamento padrão é TextRenderer adicionar preenchimento ao retângulo delimitador do texto desenhado para acomodar glifos pendentes. Se você precisar desenhar uma linha de texto sem esses espaços extras, deverá usar as versões de DrawText(IDeviceContext, String, Font, Point, Color) e MeasureText(IDeviceContext, String, Font) que usam um parâmetro e TextFormatFlags um Size parâmetro. Para obter um exemplo, consulte MeasureText(IDeviceContext, String, Font, Size, TextFormatFlags).

Exemplos

O exemplo de código a seguir demonstra como usar o MeasureText método. Para executar este exemplo, cole o código em um formulário Windows e chame MeasureText1 do manipulador de eventos Paint do formulário, passando e como PaintEventArgs.

private void MeasureText1(PaintEventArgs e)
{
    String text1 = "Measure this text";
    Font arialBold = new Font("Arial", 12.0F);
    Size textSize = TextRenderer.MeasureText(text1, arialBold);
    TextRenderer.DrawText(e.Graphics, text1, arialBold, 
        new Rectangle(new Point(10, 10), textSize), Color.Red);  
}

Private Sub MeasureText1(ByVal e As PaintEventArgs)
    Dim text1 As String = "Measure this text"
    Dim arialBold As New Font("Arial", 12.0F)
    Dim textSize As Size = TextRenderer.MeasureText(text1, arialBold)
    TextRenderer.DrawText(e.Graphics, text1, arialBold, _
        New Rectangle(New Point(10, 10), textSize), Color.Red)

End Sub

Comentários

O MeasureText método requer que o texto seja desenhado em uma única linha.

public:
 static System::Drawing::Size MeasureText(System::Drawing::IDeviceContext ^ dc, System::String ^ text, System::Drawing::Font ^ font);

public static System.Drawing.Size MeasureText(System.Drawing.IDeviceContext dc, string text, System.Drawing.Font font);

static member MeasureText : System.Drawing.IDeviceContext * string * System.Drawing.Font -> System.Drawing.Size

Public Shared Function MeasureText (dc As IDeviceContext, text As String, font As Font) As Size

Parâmetros

Retornos

O Size, em pixels, de text desenhado em uma única linha com o especificado font no contexto do dispositivo especificado.

Exemplos

O exemplo de código a seguir demonstra como usar um dos MeasureText métodos. Para executar este exemplo, cole o código em um formulário Windows e chame DrawALineOfText do manipulador de eventos Paint do formulário, passando e como PaintEventArgs.

private static void DrawALineOfText(PaintEventArgs e)
{
    // Declare strings to render on the form.
    string[] stringsToPaint = { "Tail", "Spin", " Toys" };

    // Declare fonts for rendering the strings.
    Font[] fonts = { new Font("Arial", 14, FontStyle.Regular), 
        new Font("Arial", 14, FontStyle.Italic), 
        new Font("Arial", 14, FontStyle.Regular) };

    Point startPoint = new Point(10, 10);

    // Set TextFormatFlags to no padding so strings are drawn together.
    TextFormatFlags flags = TextFormatFlags.NoPadding;

    // Declare a proposed size with dimensions set to the maximum integer value.
    Size proposedSize = new Size(int.MaxValue, int.MaxValue);

    // Measure each string with its font and NoPadding value and 
    // draw it to the form.
    for (int i = 0; i < stringsToPaint.Length; i++)
    {
        Size size = TextRenderer.MeasureText(e.Graphics, stringsToPaint[i], 
            fonts[i], proposedSize, flags);
        Rectangle rect = new Rectangle(startPoint, size);
        TextRenderer.DrawText(e.Graphics, stringsToPaint[i], fonts[i],
            startPoint, Color.Black, flags);
        startPoint.X += size.Width;
    }
}

Private Sub DrawALineOfText(ByVal e As PaintEventArgs)
    ' Declare strings to render on the form.
    Dim stringsToPaint() As String = {"Tail", "Spin", " Toys"}

    ' Declare fonts for rendering the strings.
    Dim fonts() As Font = {New Font("Arial", 14, FontStyle.Regular), _
        New Font("Arial", 14, FontStyle.Italic), _
        New Font("Arial", 14, FontStyle.Regular)}

    Dim startPoint As New Point(10, 10)

    ' Set TextFormatFlags to no padding so strings are drawn together.
    Dim flags As TextFormatFlags = TextFormatFlags.NoPadding

    ' Declare a proposed size with dimensions set to the maximum integer value.
    Dim proposedSize As Size = New Size(Integer.MaxValue, Integer.MaxValue)

    ' Measure each string with its font and NoPadding value and draw it to the form.
    For i As Integer = 0 To stringsToPaint.Length - 1
        Dim size As Size = TextRenderer.MeasureText(e.Graphics, _
            stringsToPaint(i), fonts(i), proposedSize, flags)
        Dim rect As Rectangle = New Rectangle(startPoint, size)
        TextRenderer.DrawText(e.Graphics, stringsToPaint(i), fonts(i), _
            startPoint, Color.Black, flags)
        startPoint.X += size.Width
    Next
End Sub

Comentários

O MeasureText método requer que o texto seja desenhado em uma única linha.

public:
 static System::Drawing::Size MeasureText(System::String ^ text, System::Drawing::Font ^ font, System::Drawing::Size proposedSize);

public static System.Drawing.Size MeasureText(string text, System.Drawing.Font font, System.Drawing.Size proposedSize);

static member MeasureText : string * System.Drawing.Font * System.Drawing.Size -> System.Drawing.Size

Public Shared Function MeasureText (text As String, font As Font, proposedSize As Size) As Size

Parâmetros

Retornos

O Size, em pixels, de text desenhado com o especificado font.

Exemplos

O exemplo de código a seguir demonstra como usar um dos MeasureText métodos. Para executar este exemplo, cole o código em um formulário Windows e chame DrawALineOfText do manipulador de eventos Paint do formulário, passando e como PaintEventArgs.

private static void DrawALineOfText(PaintEventArgs e)
{
    // Declare strings to render on the form.
    string[] stringsToPaint = { "Tail", "Spin", " Toys" };

    // Declare fonts for rendering the strings.
    Font[] fonts = { new Font("Arial", 14, FontStyle.Regular), 
        new Font("Arial", 14, FontStyle.Italic), 
        new Font("Arial", 14, FontStyle.Regular) };

    Point startPoint = new Point(10, 10);

    // Set TextFormatFlags to no padding so strings are drawn together.
    TextFormatFlags flags = TextFormatFlags.NoPadding;

    // Declare a proposed size with dimensions set to the maximum integer value.
    Size proposedSize = new Size(int.MaxValue, int.MaxValue);

    // Measure each string with its font and NoPadding value and 
    // draw it to the form.
    for (int i = 0; i < stringsToPaint.Length; i++)
    {
        Size size = TextRenderer.MeasureText(e.Graphics, stringsToPaint[i], 
            fonts[i], proposedSize, flags);
        Rectangle rect = new Rectangle(startPoint, size);
        TextRenderer.DrawText(e.Graphics, stringsToPaint[i], fonts[i],
            startPoint, Color.Black, flags);
        startPoint.X += size.Width;
    }
}

Private Sub DrawALineOfText(ByVal e As PaintEventArgs)
    ' Declare strings to render on the form.
    Dim stringsToPaint() As String = {"Tail", "Spin", " Toys"}

    ' Declare fonts for rendering the strings.
    Dim fonts() As Font = {New Font("Arial", 14, FontStyle.Regular), _
        New Font("Arial", 14, FontStyle.Italic), _
        New Font("Arial", 14, FontStyle.Regular)}

    Dim startPoint As New Point(10, 10)

    ' Set TextFormatFlags to no padding so strings are drawn together.
    Dim flags As TextFormatFlags = TextFormatFlags.NoPadding

    ' Declare a proposed size with dimensions set to the maximum integer value.
    Dim proposedSize As Size = New Size(Integer.MaxValue, Integer.MaxValue)

    ' Measure each string with its font and NoPadding value and draw it to the form.
    For i As Integer = 0 To stringsToPaint.Length - 1
        Dim size As Size = TextRenderer.MeasureText(e.Graphics, _
            stringsToPaint(i), fonts(i), proposedSize, flags)
        Dim rect As Rectangle = New Rectangle(startPoint, size)
        TextRenderer.DrawText(e.Graphics, stringsToPaint(i), fonts(i), _
            startPoint, Color.Black, flags)
        startPoint.X += size.Width
    Next
End Sub

Comentários

O MeasureText método usa o proposedSize parâmetro para indicar a relação de altura a largura ao determinar o tamanho do texto. Ao medir o texto em uma única linha, se o proposedSize parâmetro representar um com uma Size dimensão de altura maior que Int32.MaxValue, o retornado Size será ajustado para refletir a altura real do texto.

public:
 static System::Drawing::Size MeasureText(System::Drawing::IDeviceContext ^ dc, System::String ^ text, System::Drawing::Font ^ font, System::Drawing::Size proposedSize);

public static System.Drawing.Size MeasureText(System.Drawing.IDeviceContext dc, string text, System.Drawing.Font font, System.Drawing.Size proposedSize);

static member MeasureText : System.Drawing.IDeviceContext * string * System.Drawing.Font * System.Drawing.Size -> System.Drawing.Size

Public Shared Function MeasureText (dc As IDeviceContext, text As String, font As Font, proposedSize As Size) As Size

Parâmetros

Retornos

O Size, em pixels, de text desenhado com o especificado font.

Exceções

Exemplos

O exemplo de código a seguir demonstra como usar um dos MeasureText métodos. Para executar este exemplo, cole o código em um formulário Windows e chame DrawALineOfText do manipulador de eventos Paint do formulário, passando e como PaintEventArgs.

private static void DrawALineOfText(PaintEventArgs e)
{
    // Declare strings to render on the form.
    string[] stringsToPaint = { "Tail", "Spin", " Toys" };

    // Declare fonts for rendering the strings.
    Font[] fonts = { new Font("Arial", 14, FontStyle.Regular), 
        new Font("Arial", 14, FontStyle.Italic), 
        new Font("Arial", 14, FontStyle.Regular) };

    Point startPoint = new Point(10, 10);

    // Set TextFormatFlags to no padding so strings are drawn together.
    TextFormatFlags flags = TextFormatFlags.NoPadding;

    // Declare a proposed size with dimensions set to the maximum integer value.
    Size proposedSize = new Size(int.MaxValue, int.MaxValue);

    // Measure each string with its font and NoPadding value and 
    // draw it to the form.
    for (int i = 0; i < stringsToPaint.Length; i++)
    {
        Size size = TextRenderer.MeasureText(e.Graphics, stringsToPaint[i], 
            fonts[i], proposedSize, flags);
        Rectangle rect = new Rectangle(startPoint, size);
        TextRenderer.DrawText(e.Graphics, stringsToPaint[i], fonts[i],
            startPoint, Color.Black, flags);
        startPoint.X += size.Width;
    }
}

Private Sub DrawALineOfText(ByVal e As PaintEventArgs)
    ' Declare strings to render on the form.
    Dim stringsToPaint() As String = {"Tail", "Spin", " Toys"}

    ' Declare fonts for rendering the strings.
    Dim fonts() As Font = {New Font("Arial", 14, FontStyle.Regular), _
        New Font("Arial", 14, FontStyle.Italic), _
        New Font("Arial", 14, FontStyle.Regular)}

    Dim startPoint As New Point(10, 10)

    ' Set TextFormatFlags to no padding so strings are drawn together.
    Dim flags As TextFormatFlags = TextFormatFlags.NoPadding

    ' Declare a proposed size with dimensions set to the maximum integer value.
    Dim proposedSize As Size = New Size(Integer.MaxValue, Integer.MaxValue)

    ' Measure each string with its font and NoPadding value and draw it to the form.
    For i As Integer = 0 To stringsToPaint.Length - 1
        Dim size As Size = TextRenderer.MeasureText(e.Graphics, _
            stringsToPaint(i), fonts(i), proposedSize, flags)
        Dim rect As Rectangle = New Rectangle(startPoint, size)
        TextRenderer.DrawText(e.Graphics, stringsToPaint(i), fonts(i), _
            startPoint, Color.Black, flags)
        startPoint.X += size.Width
    Next
End Sub

Comentários

O MeasureText método usa o proposedSize parâmetro para indicar a relação de altura a largura ao determinar o tamanho do texto. Ao medir o texto em uma única linha, se o proposedSize parâmetro representar um com uma Size dimensão de altura maior que Int32.MaxValue, o retornado Size será ajustado para refletir a altura real do texto.

public:
 static System::Drawing::Size MeasureText(System::String ^ text, System::Drawing::Font ^ font, System::Drawing::Size proposedSize, System::Windows::Forms::TextFormatFlags flags);

public static System.Drawing.Size MeasureText(string text, System.Drawing.Font font, System.Drawing.Size proposedSize, System.Windows.Forms.TextFormatFlags flags);

static member MeasureText : string * System.Drawing.Font * System.Drawing.Size * System.Windows.Forms.TextFormatFlags -> System.Drawing.Size

Public Shared Function MeasureText (text As String, font As Font, proposedSize As Size, flags As TextFormatFlags) As Size

Parâmetros

Retornos

O Size, em pixels, de text desenhado com o formato e especificado font .

Exemplos

O exemplo de código a seguir demonstra como usar um dos MeasureText métodos. Para executar este exemplo, cole o código em um formulário Windows e chame DrawALineOfText do manipulador de eventos Paint do formulário, passando e como PaintEventArgs.

private static void DrawALineOfText(PaintEventArgs e)
{
    // Declare strings to render on the form.
    string[] stringsToPaint = { "Tail", "Spin", " Toys" };

    // Declare fonts for rendering the strings.
    Font[] fonts = { new Font("Arial", 14, FontStyle.Regular), 
        new Font("Arial", 14, FontStyle.Italic), 
        new Font("Arial", 14, FontStyle.Regular) };

    Point startPoint = new Point(10, 10);

    // Set TextFormatFlags to no padding so strings are drawn together.
    TextFormatFlags flags = TextFormatFlags.NoPadding;

    // Declare a proposed size with dimensions set to the maximum integer value.
    Size proposedSize = new Size(int.MaxValue, int.MaxValue);

    // Measure each string with its font and NoPadding value and 
    // draw it to the form.
    for (int i = 0; i < stringsToPaint.Length; i++)
    {
        Size size = TextRenderer.MeasureText(e.Graphics, stringsToPaint[i], 
            fonts[i], proposedSize, flags);
        Rectangle rect = new Rectangle(startPoint, size);
        TextRenderer.DrawText(e.Graphics, stringsToPaint[i], fonts[i],
            startPoint, Color.Black, flags);
        startPoint.X += size.Width;
    }
}

Private Sub DrawALineOfText(ByVal e As PaintEventArgs)
    ' Declare strings to render on the form.
    Dim stringsToPaint() As String = {"Tail", "Spin", " Toys"}

    ' Declare fonts for rendering the strings.
    Dim fonts() As Font = {New Font("Arial", 14, FontStyle.Regular), _
        New Font("Arial", 14, FontStyle.Italic), _
        New Font("Arial", 14, FontStyle.Regular)}

    Dim startPoint As New Point(10, 10)

    ' Set TextFormatFlags to no padding so strings are drawn together.
    Dim flags As TextFormatFlags = TextFormatFlags.NoPadding

    ' Declare a proposed size with dimensions set to the maximum integer value.
    Dim proposedSize As Size = New Size(Integer.MaxValue, Integer.MaxValue)

    ' Measure each string with its font and NoPadding value and draw it to the form.
    For i As Integer = 0 To stringsToPaint.Length - 1
        Dim size As Size = TextRenderer.MeasureText(e.Graphics, _
            stringsToPaint(i), fonts(i), proposedSize, flags)
        Dim rect As Rectangle = New Rectangle(startPoint, size)
        TextRenderer.DrawText(e.Graphics, stringsToPaint(i), fonts(i), _
            startPoint, Color.Black, flags)
        startPoint.X += size.Width
    Next
End Sub

Comentários

MeasureText usa os proposedSize parâmetros e para indicar a relação entre altura e flags largura ao determinar o tamanho do texto. Ao medir o texto em uma única linha, se o proposedSize parâmetro representar um com uma Size dimensão de altura maior que Int32.MaxValue, o retornado Size será ajustado para refletir a altura real do texto.

Você pode manipular como o texto é desenhado usando uma das DrawText sobrecargas que usa um TextFormatFlags parâmetro. Por exemplo, o comportamento padrão é TextRenderer adicionar preenchimento ao retângulo delimitador do texto desenhado para acomodar glifos pendentes. Se você precisar desenhar uma linha de texto sem esses espaços extras, deverá usar as versões de DrawText e MeasureText que usam um parâmetro e TextFormatFlags um Size parâmetro. Para obter um exemplo, consulte MeasureText(IDeviceContext, String, Font, Size, TextFormatFlags).

public:
 static System::Drawing::Size MeasureText(System::Drawing::IDeviceContext ^ dc, System::String ^ text, System::Drawing::Font ^ font, System::Drawing::Size proposedSize, System::Windows::Forms::TextFormatFlags flags);

public static System.Drawing.Size MeasureText(System.Drawing.IDeviceContext dc, string text, System.Drawing.Font font, System.Drawing.Size proposedSize, System.Windows.Forms.TextFormatFlags flags);

static member MeasureText : System.Drawing.IDeviceContext * string * System.Drawing.Font * System.Drawing.Size * System.Windows.Forms.TextFormatFlags -> System.Drawing.Size

Public Shared Function MeasureText (dc As IDeviceContext, text As String, font As Font, proposedSize As Size, flags As TextFormatFlags) As Size

Parâmetros

Retornos

O Size, em pixels, de text desenhado com o formato e especificado font .

Exceções

Exemplos

O exemplo a seguir demonstra como usar e métodos MeasureTextDrawText para desenhar uma única linha de texto em diferentes estilos de fonte. Para executar este exemplo, cole o código a seguir em um formulário Windows e chame DrawALineOfText do manipulador de eventos Paint do formulário, passando e como PaintEventArgs.

private static void DrawALineOfText(PaintEventArgs e)
{
    // Declare strings to render on the form.
    string[] stringsToPaint = { "Tail", "Spin", " Toys" };

    // Declare fonts for rendering the strings.
    Font[] fonts = { new Font("Arial", 14, FontStyle.Regular), 
        new Font("Arial", 14, FontStyle.Italic), 
        new Font("Arial", 14, FontStyle.Regular) };

    Point startPoint = new Point(10, 10);

    // Set TextFormatFlags to no padding so strings are drawn together.
    TextFormatFlags flags = TextFormatFlags.NoPadding;

    // Declare a proposed size with dimensions set to the maximum integer value.
    Size proposedSize = new Size(int.MaxValue, int.MaxValue);

    // Measure each string with its font and NoPadding value and 
    // draw it to the form.
    for (int i = 0; i < stringsToPaint.Length; i++)
    {
        Size size = TextRenderer.MeasureText(e.Graphics, stringsToPaint[i], 
            fonts[i], proposedSize, flags);
        Rectangle rect = new Rectangle(startPoint, size);
        TextRenderer.DrawText(e.Graphics, stringsToPaint[i], fonts[i],
            startPoint, Color.Black, flags);
        startPoint.X += size.Width;
    }
}

Private Sub DrawALineOfText(ByVal e As PaintEventArgs)
    ' Declare strings to render on the form.
    Dim stringsToPaint() As String = {"Tail", "Spin", " Toys"}

    ' Declare fonts for rendering the strings.
    Dim fonts() As Font = {New Font("Arial", 14, FontStyle.Regular), _
        New Font("Arial", 14, FontStyle.Italic), _
        New Font("Arial", 14, FontStyle.Regular)}

    Dim startPoint As New Point(10, 10)

    ' Set TextFormatFlags to no padding so strings are drawn together.
    Dim flags As TextFormatFlags = TextFormatFlags.NoPadding

    ' Declare a proposed size with dimensions set to the maximum integer value.
    Dim proposedSize As Size = New Size(Integer.MaxValue, Integer.MaxValue)

    ' Measure each string with its font and NoPadding value and draw it to the form.
    For i As Integer = 0 To stringsToPaint.Length - 1
        Dim size As Size = TextRenderer.MeasureText(e.Graphics, _
            stringsToPaint(i), fonts(i), proposedSize, flags)
        Dim rect As Rectangle = New Rectangle(startPoint, size)
        TextRenderer.DrawText(e.Graphics, stringsToPaint(i), fonts(i), _
            startPoint, Color.Black, flags)
        startPoint.X += size.Width
    Next
End Sub

Comentários

O MeasureText método usa o e os proposedSize parâmetros para indicar a relação entre altura e flags largura ao determinar o tamanho do texto. Ao medir o texto em uma única linha, se o proposedSize parâmetro representar um com uma Size dimensão de altura maior que Int32.MaxValue, o retornado Size será ajustado para refletir a altura real do texto.

Você pode manipular como o texto é desenhado usando uma das DrawText sobrecargas que usa um TextFormatFlags parâmetro. Por exemplo, o comportamento padrão é TextRenderer adicionar preenchimento ao retângulo delimitador do texto desenhado para acomodar glifos pendentes. Se você precisar desenhar uma linha de texto sem esses espaços extras, use as versões de DrawText e MeasureText que usam um Size parâmetro, TextFormatFlags conforme mostrado no exemplo.