Graphics::TextContrast Property
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, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.