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Graphics::TextContrast Property
Visual Studio 2010
Gets or sets the gamma correction value for rendering text.
Assembly: System.Drawing (in System.Drawing.dll)
Property Value
Type: System::Int32The gamma correction value used for rendering antialiased and ClearType text.
The following code example demonstrates the use of the TextRenderingHint and TextContrast properties.
This example is designed to be used with Windows Forms. Paste the code into a form and call the ChangeTextRenderingHintAndTextContrast method when handling the form's Paint event, passing e as PaintEventArgs.
private: void ChangeTextRenderingHintAndTextContrast( PaintEventArgs^ e ) { // Retrieve the graphics object. Graphics^ formGraphics = e->Graphics; // Declare a new font. System::Drawing::Font^ myFont = gcnew System::Drawing::Font( FontFamily::GenericSansSerif,20,FontStyle::Regular ); // Set the TextRenderingHint property. formGraphics->TextRenderingHint = System::Drawing::Text::TextRenderingHint::SingleBitPerPixel; // Draw the string. formGraphics->DrawString( "Hello World", myFont, Brushes::Firebrick, 20.0F, 20.0F ); // Change the TextRenderingHint property. formGraphics->TextRenderingHint = System::Drawing::Text::TextRenderingHint::AntiAliasGridFit; // Draw the string again. formGraphics->DrawString( "Hello World", myFont, Brushes::Firebrick, 20.0F, 60.0F ); // Set the text contrast to a high-contrast setting. formGraphics->TextContrast = 0; // Draw the string. formGraphics->DrawString( "Hello World", myFont, Brushes::DodgerBlue, 20.0F, 100.0F ); // Set the text contrast to a low-contrast setting. formGraphics->TextContrast = 12; // Draw the string again. formGraphics->DrawString( "Hello World", myFont, Brushes::DodgerBlue, 20.0F, 140.0F ); // Dispose of the font object. delete myFont; }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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