import
This commit is contained in:
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using System;
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using System.IO;
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using FreeImageAPI;
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namespace Sample02
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{
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class Program
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{
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static void Main(string[] args)
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{
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// Check if FreeImage.dll is available (can be in %path%).
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if (!FreeImage.IsAvailable())
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{
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Console.WriteLine("FreeImage.dll seems to be missing. Aborting.");
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return;
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}
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Sample sample = new Sample();
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sample.Example();
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}
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}
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public class Sample
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{
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const string fileName = @"multipaged.tif";
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FIMULTIBITMAP dib = new FIMULTIBITMAP();
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Random rand = new Random();
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public void Example()
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{
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if (!File.Exists(fileName))
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{
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Console.WriteLine("File not found. Aborting.");
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return;
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}
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// Load the multipaged bitmap.
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// 'OpenMultiBitmapEx' tries to find the correct file format, loads the bitmap
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// with default options, with write support and does not use caching.
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dib = FreeImage.OpenMultiBitmapEx(fileName);
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// Check whether loading succeeded.
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if (dib.IsNull)
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{
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Console.WriteLine("File could not be loaded. Aborting.");
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return;
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}
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// Get the number of bitmaps the multipaged bitmap contains.
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int count = FreeImage.GetPageCount(dib);
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// Multipaged bitmaps consist of multiple single FIBITMAPs
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FIBITMAP page = new FIBITMAP();
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// There are bitmaps we can work with.
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if (count > 0)
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{
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// Lock a random bitmap to work with.
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page = FreeImage.LockPage(dib, rand.Next(0, count));
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}
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// Check whether locking succeeded.
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if (page.IsNull)
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{
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// Locking failed. Unload the bitmap and return.
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FreeImage.CloseMultiBitmapEx(ref dib);
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return;
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}
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// Get a list of locked pages. This can be usefull to check whether a page has already been locked.
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int[] lockedPages = FreeImage.GetLockedPages(dib);
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// Lets modify the page.
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if (FreeImage.AdjustGamma(page, 2d))
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{
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Console.WriteLine("Successfully changed gamma of page {0}.", lockedPages[0]);
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}
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else
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{
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Console.WriteLine("Failed to adjust gamma ...");
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}
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// Print out the list of locked pages
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foreach (int i in lockedPages)
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Console.WriteLine("Page {0} is locked.", i);
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// Use 'UnlockPage' instead of 'Unload' to free the page. Set the third parameter to 'true'
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// so that FreeImage can store the changed page within the multipaged bitmap.
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FreeImage.UnlockPage(dib, page, true);
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// Retieve the list again to see whether unlocking succeeded.
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lockedPages = FreeImage.GetLockedPages(dib);
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// No output should be produced here.
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foreach (int i in lockedPages)
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Console.WriteLine("Page {0} is still locked.", i);
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// If there are more than one page we can swap them
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if (count > 1)
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{
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if (!FreeImage.MovePage(dib, 1, 0))
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{
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Console.WriteLine("Swapping pages failed.");
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}
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}
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if (count > 2)
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{
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// Lock page 2
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page = FreeImage.LockPage(dib, 2);
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if (!page.IsNull)
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{
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// Clone the page for later appending
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FIBITMAP temp = FreeImage.Clone(page);
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// Unlock the page again
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FreeImage.UnlockPage(dib, page, false);
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// Delete the page form the multipaged bitmap
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FreeImage.DeletePage(dib, 2);
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// Append the clone again
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FreeImage.AppendPage(dib, temp);
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// Check whether the number of pages is still the same
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Console.WriteLine("Pages before: {0}. Pages after: {1}", count, FreeImage.GetPageCount(dib));
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// Unload clone to prevent memory leak
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FreeImage.UnloadEx(ref temp);
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}
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}
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// We are done and close the multipaged bitmap.
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if (!FreeImage.CloseMultiBitmapEx(ref dib))
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{
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Console.WriteLine("Closing bitmap failed!");
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}
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}
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}
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}
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@@ -0,0 +1,16 @@
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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[assembly: AssemblyTitle("")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("")]
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[assembly: AssemblyCopyright("")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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[assembly: ComVisible(false)]
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[assembly: Guid("35960522-c01a-40d2-a86b-37b9839b131c")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]
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@@ -0,0 +1,95 @@
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProductVersion>8.0.50727</ProductVersion>
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<SchemaVersion>2.0</SchemaVersion>
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<ProjectGuid>{AF8B72BD-1A8B-4E6B-A0F1-0BD57497777B}</ProjectGuid>
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<OutputType>Exe</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>Sample02</RootNamespace>
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<AssemblyName>Sample02</AssemblyName>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<UseVSHostingProcess>false</UseVSHostingProcess>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugType>none</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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<UseVSHostingProcess>false</UseVSHostingProcess>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
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<DebugSymbols>true</DebugSymbols>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<DebugType>full</DebugType>
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<PlatformTarget>x86</PlatformTarget>
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<UseVSHostingProcess>false</UseVSHostingProcess>
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<ErrorReport>prompt</ErrorReport>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<Optimize>true</Optimize>
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<DebugType>
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</DebugType>
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<PlatformTarget>x86</PlatformTarget>
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<UseVSHostingProcess>false</UseVSHostingProcess>
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<ErrorReport>prompt</ErrorReport>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x64' ">
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<DebugSymbols>true</DebugSymbols>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<DebugType>full</DebugType>
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<PlatformTarget>x64</PlatformTarget>
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<UseVSHostingProcess>false</UseVSHostingProcess>
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<ErrorReport>prompt</ErrorReport>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x64' ">
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<Optimize>true</Optimize>
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<DebugType>
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</DebugType>
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<PlatformTarget>x64</PlatformTarget>
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<UseVSHostingProcess>false</UseVSHostingProcess>
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<ErrorReport>prompt</ErrorReport>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="FreeImageNET, Version=3.11.0.0, Culture=neutral, processorArchitecture=MSIL">
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<SpecificVersion>False</SpecificVersion>
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<HintPath>..\..\Bin\FreeImageNET.dll</HintPath>
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</Reference>
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<Reference Include="System" />
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<Reference Include="System.Drawing" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Program.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup>
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<None Include="multipaged.tif">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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</ItemGroup>
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<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
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<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
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Other similar extension points exist, see Microsoft.Common.targets.
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<Target Name="BeforeBuild">
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</Target>
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<Target Name="AfterBuild">
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</Target>
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-->
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</Project>
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