diff --git a/README.md b/README.md
index 4635cd6e..01feb3e7 100644
--- a/README.md
+++ b/README.md
@@ -23,12 +23,12 @@ WARNING: recent breaking change: when specifying dlangui library as DUB dependen
 
 Main features:
 
-* Crossplatform (Win32 and Linux are supported in current version); can use SDL2 as a backend.
+* Crossplatform (Win32, OSX, and Linux are supported in current version); can use SDL2 as a backend.
 * Mostly inspired by Android UI API (layouts, styles, two phase layout, ...)
 * Supports highly customizable UI themes and styles
 * Supports internationalization
 * Hardware acceleration using OpenGL (when built with version USE_OPENGL)
-* Fallback to pure Win32 API / SDL / XCB when OpenGL is not available (e.g. opengl dynamic library cannot be loaded)
+* Fallback to pure Win32 API / SDL / X11 when OpenGL is not available (e.g. opengl dynamic library cannot be loaded)
 * Actually it's a port (with major refactoring) of GUI library for cross platform OpenGL based implementation of Cool Reader app project from C++.
 * Non thread safe - all UI operations should be preformed in single thread
 
@@ -175,6 +175,10 @@ Mac OSX development using Mono-D
 
 DMD, DUB, git, MonoDevelop with Mono-D plugin must be installed
 
+Can use SDL2 or X11 as a backend.
+
+Native Cocoa backend - work is in progress.
+
 In some directory, e.g. ~/src/d/ :
 
 Clone DlangUI repository
@@ -197,12 +201,14 @@ Clone dependency libraries
         git clone https://github.com/Devisualization/image.git de_image
         git clone https://github.com/Dav1dde/gl3n.git
         git clone https://github.com/p0nce/DerelictCocoa.git
+        git clone https://github.com/nomad-software/x11.git
 
 Open solution file with Mono-D	
 
 		dlangui-monod-osx.sln
 
 
+
 Linux development using Mono-D
 ------------------------------
 
diff --git a/dlangui-monod-linux.dproj b/dlangui-monod-linux.dproj
index 631734ce..5e7e177f 100644
--- a/dlangui-monod-linux.dproj
+++ b/dlangui-monod-linux.dproj
@@ -175,14 +175,68 @@
     <Externalconsole>true</Externalconsole>
     <DebugLevel>0</DebugLevel>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'DebugX11|AnyCPU' ">
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'DebugX11|x86' ">
     <OutputPath>bin\DebugX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
     <ObjectsDirectory>obj/DebugX11</ObjectsDirectory>
     <LinkinThirdPartyLibraries>false</LinkinThirdPartyLibraries>
     <ExtraCompilerArguments>-Jviews
 -Jviews/res
 -Jviews/res/i18n
 -Jviews/res/mdpi
+-Jviews/res/hdpi</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>libdlangui-monod-linux</OutputName>
+    <Target>StaticLibrary</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseX11|x64' ">
+    <OutputPath>bin\ReleaseX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/ReleaseX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>false</LinkinThirdPartyLibraries>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/i18n
+-Jviews/res/mdpi
+-Jviews/res/hdpi</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>libdlangui-monod-linux</OutputName>
+    <Target>StaticLibrary</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'UnittestX11|x64' ">
+    <OutputPath>bin\UnittestX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/UnittestX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>false</LinkinThirdPartyLibraries>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/i18n
+-Jviews/res/mdpi
 -Jviews/res/hdpi</ExtraCompilerArguments>
     <UnittestMode>false</UnittestMode>
     <OutputName>libdlangui-monod-linux</OutputName>
diff --git a/dlangui-monod-linux.sln b/dlangui-monod-linux.sln
index 1bc9c31e..ba4bb0e6 100644
--- a/dlangui-monod-linux.sln
+++ b/dlangui-monod-linux.sln
@@ -22,6 +22,8 @@ Global
 		ReleaseMinimal|Any CPU = ReleaseMinimal|Any CPU
 		UnittestMinimal|Any CPU = UnittestMinimal|Any CPU
 		DebugX11|Any CPU = DebugX11|Any CPU
+		ReleaseX11|Any CPU = ReleaseX11|Any CPU
+		UnittestX11|Any CPU = UnittestX11|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.Debug|Any CPU.ActiveCfg = Debug|x64
@@ -34,10 +36,14 @@ Global
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.Release|Any CPU.Build.0 = Release|x64
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.ReleaseMinimal|Any CPU.ActiveCfg = ReleaseMinimal|x64
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.ReleaseMinimal|Any CPU.Build.0 = ReleaseMinimal|x64
+		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.ReleaseX11|Any CPU.ActiveCfg = ReleaseX11|x64
+		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.ReleaseX11|Any CPU.Build.0 = ReleaseX11|x64
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.Unittest|Any CPU.ActiveCfg = Unittest|x64
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.Unittest|Any CPU.Build.0 = Unittest|x64
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.UnittestMinimal|Any CPU.ActiveCfg = UnittestMinimal|x64
 		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.UnittestMinimal|Any CPU.Build.0 = UnittestMinimal|x64
+		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.UnittestX11|Any CPU.ActiveCfg = UnittestX11|x64
+		{075C374A-563A-4CAC-9E9F-0B6E1DFEAEC3}.UnittestX11|Any CPU.Build.0 = UnittestX11|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.Debug|Any CPU.ActiveCfg = Debug|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.Debug|Any CPU.Build.0 = Debug|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.DebugMinimal|Any CPU.ActiveCfg = DebugMinimal|x64
@@ -48,10 +54,14 @@ Global
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.Release|Any CPU.Build.0 = Release|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.ReleaseMinimal|Any CPU.ActiveCfg = ReleaseMinimal|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.ReleaseMinimal|Any CPU.Build.0 = ReleaseMinimal|x64
+		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.ReleaseX11|Any CPU.ActiveCfg = ReleaseX11|x64
+		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.ReleaseX11|Any CPU.Build.0 = ReleaseX11|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.Unittest|Any CPU.ActiveCfg = Unittest|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.Unittest|Any CPU.Build.0 = Unittest|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.UnittestMinimal|Any CPU.ActiveCfg = UnittestMinimal|x64
 		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.UnittestMinimal|Any CPU.Build.0 = UnittestMinimal|x64
+		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.UnittestX11|Any CPU.ActiveCfg = UnittestX11|x64
+		{0A3A0D08-E4DC-418E-B92B-561CC91C2306}.UnittestX11|Any CPU.Build.0 = UnittestX11|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.Debug|Any CPU.ActiveCfg = Debug|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.Debug|Any CPU.Build.0 = Debug|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.DebugMinimal|Any CPU.ActiveCfg = DebugMinimal|x64
@@ -62,10 +72,14 @@ Global
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.Release|Any CPU.Build.0 = Release|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.ReleaseMinimal|Any CPU.ActiveCfg = ReleaseMinimal|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.ReleaseMinimal|Any CPU.Build.0 = ReleaseMinimal|x64
+		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.ReleaseX11|Any CPU.ActiveCfg = ReleaseX11|x64
+		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.ReleaseX11|Any CPU.Build.0 = ReleaseX11|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.Unittest|Any CPU.ActiveCfg = Unittest|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.Unittest|Any CPU.Build.0 = Unittest|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.UnittestMinimal|Any CPU.ActiveCfg = UnittestMinimal|x64
 		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.UnittestMinimal|Any CPU.Build.0 = UnittestMinimal|x64
+		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.UnittestX11|Any CPU.ActiveCfg = UnittestX11|x64
+		{54BDE028-6064-4CA9-B6CA-4C0BEEE70F24}.UnittestX11|Any CPU.Build.0 = UnittestX11|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.Debug|Any CPU.ActiveCfg = DebugX11|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.Debug|Any CPU.Build.0 = DebugX11|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.DebugMinimal|Any CPU.ActiveCfg = DebugMinimal|x64
@@ -76,10 +90,14 @@ Global
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.Release|Any CPU.Build.0 = Release|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.ReleaseMinimal|Any CPU.ActiveCfg = ReleaseMinimal|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.ReleaseMinimal|Any CPU.Build.0 = ReleaseMinimal|x64
+		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.ReleaseX11|Any CPU.ActiveCfg = ReleaseX11|x64
+		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.ReleaseX11|Any CPU.Build.0 = ReleaseX11|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.Unittest|Any CPU.ActiveCfg = Unittest|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.Unittest|Any CPU.Build.0 = Unittest|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.UnittestMinimal|Any CPU.ActiveCfg = UnittestMinimal|x64
 		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.UnittestMinimal|Any CPU.Build.0 = UnittestMinimal|x64
+		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.UnittestX11|Any CPU.ActiveCfg = UnittestX11|x64
+		{5BD82AA8-4026-44C2-8957-B4E2932542F0}.UnittestX11|Any CPU.Build.0 = UnittestX11|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.Debug|Any CPU.ActiveCfg = Debug|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.Debug|Any CPU.Build.0 = Debug|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.DebugMinimal|Any CPU.ActiveCfg = DebugMinimal|x64
@@ -90,10 +108,14 @@ Global
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.Release|Any CPU.Build.0 = Release|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.ReleaseMinimal|Any CPU.ActiveCfg = ReleaseMinimal|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.ReleaseMinimal|Any CPU.Build.0 = ReleaseMinimal|x64
+		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.ReleaseX11|Any CPU.ActiveCfg = ReleaseX11|x64
+		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.ReleaseX11|Any CPU.Build.0 = ReleaseX11|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.Unittest|Any CPU.ActiveCfg = Unittest|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.Unittest|Any CPU.Build.0 = Unittest|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.UnittestMinimal|Any CPU.ActiveCfg = UnittestMinimal|x64
 		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.UnittestMinimal|Any CPU.Build.0 = UnittestMinimal|x64
+		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.UnittestX11|Any CPU.ActiveCfg = UnittestX11|x64
+		{8E722D80-CF8D-4D98-BEAE-7BC9E6752AC4}.UnittestX11|Any CPU.Build.0 = UnittestX11|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.Debug|Any CPU.ActiveCfg = Debug|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.Debug|Any CPU.Build.0 = Debug|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.DebugMinimal|Any CPU.ActiveCfg = DebugMinimal|x64
@@ -104,9 +126,13 @@ Global
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.Release|Any CPU.Build.0 = Release|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.ReleaseMinimal|Any CPU.ActiveCfg = ReleaseMinimal|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.ReleaseMinimal|Any CPU.Build.0 = ReleaseMinimal|x64
+		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.ReleaseX11|Any CPU.ActiveCfg = ReleaseX11|x64
+		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.ReleaseX11|Any CPU.Build.0 = ReleaseX11|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.Unittest|Any CPU.ActiveCfg = Unittest|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.Unittest|Any CPU.Build.0 = Unittest|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.UnittestMinimal|Any CPU.ActiveCfg = UnittestMinimal|x64
 		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.UnittestMinimal|Any CPU.Build.0 = UnittestMinimal|x64
+		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.UnittestX11|Any CPU.ActiveCfg = UnittestX11|x64
+		{A38BEF21-AAFE-4115-A978-63B7C8C2FBD1}.UnittestX11|Any CPU.Build.0 = UnittestX11|x64
 	EndGlobalSection
 EndGlobal
diff --git a/dub.json b/dub.json
index c32e31b8..91bcea88 100644
--- a/dub.json
+++ b/dub.json
@@ -95,6 +95,18 @@
                 "libs/windows/x86/SDL2.dll"
             ]
         },
+        {
+            "name": "x11",
+            "versions": ["USE_X11", "USE_OPENGL", "USE_FREETYPE", "EmbedStandardResources"],
+            "versions-windows": ["Unicode"],
+            "dependencies": {
+                "dlib": "~>0.7.0",
+                "derelict-gl3": "~>1.0.16",
+                "derelict-ft": "~>1.0.2",
+                "gl3n": "~>1.2.0",
+                "x11": "~>1.0.9"
+            }
+        },
         {
             "name": "sfml",
             "versions": ["USE_DSFML", "USE_OPENGL", "USE_FREETYPE", "EmbedStandardResources"],
diff --git a/examples/dmledit/dmledit-monod-linux.dproj b/examples/dmledit/dmledit-monod-linux.dproj
index 64b3fbd9..69c38021 100644
--- a/examples/dmledit/dmledit-monod-linux.dproj
+++ b/examples/dmledit/dmledit-monod-linux.dproj
@@ -175,6 +175,7 @@
     <VersionIds>
       <VersionIds>
         <String>USE_X11</String>
+        <String>USE_OPENGL</String>
         <String>USE_FREETYPE</String>
         <String>EmbedStandardResources</String>
       </VersionIds>
@@ -192,7 +193,57 @@
     <Target>Executable</Target>
     <Externalconsole>true</Externalconsole>
     <DebugLevel>0</DebugLevel>
-    <ExtraLinkerArguments>-L-lX11</ExtraLinkerArguments>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseX11|x64' ">
+    <OutputPath>bin\ReleaseX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/ReleaseX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>dmledit-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'UnittestX11|x64' ">
+    <OutputPath>bin\UnittestX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/UnittestX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>dmledit-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="src\dmledit.d" />
diff --git a/examples/example1/example1-monod-linux.dproj b/examples/example1/example1-monod-linux.dproj
index d251586e..d29955c0 100644
--- a/examples/example1/example1-monod-linux.dproj
+++ b/examples/example1/example1-monod-linux.dproj
@@ -195,6 +195,56 @@
     <DebugLevel>0</DebugLevel>
     <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseX11|x64' ">
+    <OutputPath>bin\ReleaseX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/ReleaseX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>example1-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'UnittestX11|x64' ">
+    <OutputPath>bin\UnittestX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/UnittestX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>example1-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
   <ItemGroup>
     <Compile Include="src\example1.d" />
   </ItemGroup>
diff --git a/examples/helloworld/helloworld-monod-linux.dproj b/examples/helloworld/helloworld-monod-linux.dproj
index 566954c7..64e41d31 100644
--- a/examples/helloworld/helloworld-monod-linux.dproj
+++ b/examples/helloworld/helloworld-monod-linux.dproj
@@ -135,6 +135,7 @@
     <VersionIds>
       <VersionIds>
         <String>USE_X11</String>
+        <String>USE_OPENGL</String>
         <String>USE_FREETYPE</String>
       </VersionIds>
     </VersionIds>
@@ -151,6 +152,42 @@
       </Libs>
     </Libs>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseX11|x64' ">
+    <OutputPath>bin\ReleaseX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/ReleaseX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>helloworld-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'UnittestX11|x64' ">
+    <OutputPath>bin\UnittestX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/UnittestX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>helloworld-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
   <ItemGroup>
     <Compile Include="src\helloworld.d" />
   </ItemGroup>
diff --git a/examples/spreadsheet/spreadsheet-monod-linux.dproj b/examples/spreadsheet/spreadsheet-monod-linux.dproj
index aaad14b8..2a676cfe 100644
--- a/examples/spreadsheet/spreadsheet-monod-linux.dproj
+++ b/examples/spreadsheet/spreadsheet-monod-linux.dproj
@@ -176,6 +176,7 @@
     <VersionIds>
       <VersionIds>
         <String>USE_X11</String>
+        <String>USE_OPENGL</String>
         <String>USE_FREETYPE</String>
         <String>EmbedStandardResources</String>
       </VersionIds>
@@ -187,6 +188,53 @@
 -Jviews/res/hdpi
 -Jviews/res/mdpi
 -Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>spreadsheet-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseX11|x64' ">
+    <OutputPath>bin\ReleaseX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <LinkinThirdPartyLibraries>false</LinkinThirdPartyLibraries>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>spreadsheet-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'UnittestX11|x64' ">
+    <OutputPath>bin\UnittestX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <LinkinThirdPartyLibraries>false</LinkinThirdPartyLibraries>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
 </ExtraCompilerArguments>
     <UnittestMode>false</UnittestMode>
     <OutputName>spreadsheet-monod-linux</OutputName>
diff --git a/examples/tetris/src/tetris.d b/examples/tetris/src/tetris.d
index 6d0922cc..0478af09 100644
--- a/examples/tetris/src/tetris.d
+++ b/examples/tetris/src/tetris.d
@@ -34,7 +34,7 @@ extern (C) int UIAppMain(string[] args) {
 	Platform.instance.uiTheme = "theme_default";
 
     // create window
-    Window window = Platform.instance.createWindow("DLangUI: Tetris game example"d, null, WindowFlag.Modal);
+    Window window = Platform.instance.createWindow("DLangUI: Tetris game example"d, null, WindowFlag.Modal, 600, 400);
 
     window.mainWidget = new GameWidget();
 
diff --git a/examples/tetris/tetris-monod-linux.dproj b/examples/tetris/tetris-monod-linux.dproj
index ff456cca..3b49891c 100644
--- a/examples/tetris/tetris-monod-linux.dproj
+++ b/examples/tetris/tetris-monod-linux.dproj
@@ -173,6 +173,7 @@
     <VersionIds>
       <VersionIds>
         <String>USE_X11</String>
+        <String>USE_OPENGL</String>
         <String>USE_FREETYPE</String>
         <String>EmbedStandardResources</String>
       </VersionIds>
@@ -184,6 +185,57 @@
 -Jviews/res/hdpi
 -Jviews/res/mdpi
 -Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>tetris-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'ReleaseX11|x64' ">
+    <OutputPath>bin\ReleaseX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/ReleaseX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
+</ExtraCompilerArguments>
+    <UnittestMode>false</UnittestMode>
+    <OutputName>tetris-monod-linux</OutputName>
+    <Target>Executable</Target>
+    <Externalconsole>true</Externalconsole>
+    <DebugLevel>0</DebugLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'UnittestX11|x64' ">
+    <OutputPath>bin\UnittestX11</OutputPath>
+    <VersionIds>
+      <VersionIds>
+        <String>USE_X11</String>
+        <String>USE_OPENGL</String>
+        <String>USE_FREETYPE</String>
+        <String>EmbedStandardResources</String>
+      </VersionIds>
+    </VersionIds>
+    <ObjectsDirectory>obj/UnittestX11</ObjectsDirectory>
+    <LinkinThirdPartyLibraries>true</LinkinThirdPartyLibraries>
+    <ExtraLinkerArguments>-lX11</ExtraLinkerArguments>
+    <ExtraCompilerArguments>-Jviews
+-Jviews/res
+-Jviews/res/hdpi
+-Jviews/res/mdpi
+-Jviews/res/i18n
 </ExtraCompilerArguments>
     <UnittestMode>false</UnittestMode>
     <OutputName>tetris-monod-linux</OutputName>
diff --git a/src/dlangui/platforms/x11/x11app.d b/src/dlangui/platforms/x11/x11app.d
index c9b280cb..5e3c3032 100644
--- a/src/dlangui/platforms/x11/x11app.d
+++ b/src/dlangui/platforms/x11/x11app.d
@@ -262,7 +262,8 @@ class X11Window : DWindow {
 	   		at the top of the window and the name of the minimized window
 	   		respectively.
 		*/
-		XSetStandardProperties(x11display, _win, cast(char*)"My Window".ptr, cast(char*)"HI!".ptr, None, cast(char**)null, 0, cast(XSizeHints*)null);
+		char* caption8 = cast(char*)toUTF8(_caption).toStringz;
+		XSetStandardProperties(x11display, _win, caption8, caption8, None, cast(char**)null, 0, cast(XSizeHints*)null);
 
 		/* this routine determines which types of input are allowed in
 	   		the input.  see the appropriate section for details...