public static void Run()
{
// ExStart:SpecifyTransparency
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_PNG();
// Initialize variables to hold width & height values
int width = 0;
int height = 0;
// Initialize an array of type Color to hold the pixel data
Color[] pixels = null;
// Create an instance of RasterImage and load a BMP image
using (RasterImage raster = (RasterImage)Image.Load(dataDir + "aspose_logo.png"))
{
// Store the width & height in variables for later use
width = raster.Width;
height = raster.Height;
// Load the pixels of RasterImage into the array of type Color
pixels = raster.LoadPixels(new Rectangle(0, 0, width, height));
}
// Create & initialize an instance of PngImage while specifying size and PngColorType
using (PngImage png = new PngImage(width, height, PngColorType.TruecolorWithAlpha))
{
// Save the previously loaded pixels on to the new PngImage and Set TransparentColor property to specify which color to be rendered as transparent
png.SavePixels(new Rectangle(0, 0, width, height), pixels);
png.TransparentColor = Color.Black;
png.HasTransparentColor = true;
png.Save(dataDir + "SpecifyTransparencyforPNGImages_out.jpg");
}
// ExEnd:SpecifyTransparency
}
public static void Run()
{
// ExStart:SpecifyTransparency
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_PNG();
// Initialize variables to hold width & height values
int width = 0;
int height = 0;
// Initialize an array of type Color to hold the pixel data
Color[] pixels = null;
// Create an instance of RasterImage and load a BMP image
using (RasterImage raster = (RasterImage)Image.Load(dataDir + "aspose_logo.png"))
{
// Store the width & height in variables for later use
width = raster.Width;
height = raster.Height;
// Load the pixels of RasterImage into the array of type Color
pixels = raster.LoadPixels(new Rectangle(0, 0, width, height));
}
// Create & initialize an instance of PngImage while specifying size and PngColorType
using (PngImage png = new PngImage(width, height, PngColorType.TruecolorWithAlpha))
{
// Save the previously loaded pixels on to the new PngImage and Set TransparentColor property to specify which color to be rendered as transparent
png.SavePixels(new Rectangle(0, 0, width, height), pixels);
png.TransparentColor = Color.Black;
png.HasTransparentColor = true;
png.Save(dataDir + "SpecifyTransparencyforPNGImages_out.jpg");
}
// ExEnd:SpecifyTransparency
}
public static void Run()
{
Console.WriteLine("Running example SettingResolution");
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_PNG();
// Initialize variables to hold width & height values
int width = 0;
int height = 0;
// Initialize an array of type Color to hold the pixel data
Color[] pixels = null;
// Create an instance of RasterImage and load a BMP image
using (RasterImage raster = (RasterImage)Image.Load(dataDir + "aspose_logo.png"))
{
// Store the width & height in variables for later use
width = raster.Width;
height = raster.Height;
// Load the pixels of RasterImage into the array of type Color
pixels = raster.LoadPixels(new Rectangle(0, 0, width, height));
}
// Create & initialize an instance of PngImage while specifying size and PngColorType
using (PngImage png = new PngImage(width, height))
{
// Save the previously loaded pixels on to the new PngImage
png.SavePixels(new Rectangle(0, 0, width, height), pixels);
// Create an instance of PngOptions, Set the horizontal & vertical resolutions and Save the result on disc
PngOptions options = new PngOptions();
options.ResolutionSettings = new ResolutionSetting(72, 96);
png.Save(dataDir + "SettingResolution_output.png", options);
}
Console.WriteLine("Finished example SettingResolution");
}
public static void Run()
{
// ExStart:SettingResolution
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_PNG();
// Initialize variables to hold width & height values
int width = 0;
int height = 0;
// Initialize an array of type Color to hold the pixel data
Color[] pixels = null;
// Create an instance of RasterImage and load a BMP image
using (RasterImage raster = (RasterImage)Image.Load(dataDir + "aspose_logo.png"))
{
// Store the width & height in variables for later use
width = raster.Width;
height = raster.Height;
// Load the pixels of RasterImage into the array of type Color
pixels = raster.LoadPixels(new Rectangle(0, 0, width, height));
}
// Create & initialize an instance of PngImage while specifying size and PngColorType
using (PngImage png = new PngImage(width, height))
{
// Save the previously loaded pixels on to the new PngImage
png.SavePixels(new Rectangle(0, 0, width, height), pixels);
// Create an instance of PngOptions, Set the horizontal & vertical resolutions and Save the result on disc
PngOptions options = new PngOptions();
options.ResolutionSettings = new ResolutionSetting(72, 96);
png.Save(dataDir + "SettingResolution_output.png", options);
}
// ExEnd:SettingResolution
}