diff --git a/include/calib3d/calib3d_c.pas b/include/calib3d/calib3d_c.pas
index 90b19a9..b7e97e1 100644
--- a/include/calib3d/calib3d_c.pas
+++ b/include/calib3d/calib3d_c.pas
@@ -267,15 +267,16 @@ procedure cvFindExtrinsicCameraParams2(const object_points: pCvMat; const image_
 // #define CV_CALIB_CB_FILTER_QUADS     4
 // #define CV_CALIB_CB_FAST_CHECK       8
 //
-/// / Performs a fast check if a chessboard is in the input image. This is a workaround to
-/// / a problem of cvFindChessboardCorners being slow on images with no chessboard
-/// / - src: input image
-/// / - size: chessboard size
-/// / Returns 1 if a chessboard can be in this image and findChessboardCorners should be called,
-/// / 0 if there is no chessboard, -1 in case of error
-// CVAPI(int) cvCheckChessboard(IplImage* src, CvSize size);
 
-function cvCheckChessboard(const image: Pointer; size: TCvSize): Integer; cdecl;
+{// Performs a fast check if a chessboard is in the input image. This is a workaround to
+ // a problem of cvFindChessboardCorners being slow on images with no chessboard
+ // - src: input image
+ // - size: chessboard size
+ // Returns 1 if a chessboard can be in this image and findChessboardCorners should be called,
+ // 0 if there is no chessboard, -1 in case of error
+ CVAPI(int) cvCheckChessboard(IplImage* src, CvSize size);
+}
+function cvCheckChessboard(const image: pCvArr; size: TCvSize): Integer; cdecl;
 
 
 // /* Detects corners on a chessboard calibration pattern */
diff --git a/samples/MultiDemo/VCLChessboardCorners/MainForm.dfm b/samples/MultiDemo/VCLChessboardCorners/MainForm.dfm
index 9468917..adf5ced 100644
--- a/samples/MultiDemo/VCLChessboardCorners/MainForm.dfm
+++ b/samples/MultiDemo/VCLChessboardCorners/MainForm.dfm
@@ -3,7 +3,7 @@ object FormMain: TFormMain
   Top = 154
   Caption = 'Chessboard Corners'
   ClientHeight = 484
-  ClientWidth = 1368
+  ClientWidth = 1284
   Color = clBtnFace
   Font.Charset = DEFAULT_CHARSET
   Font.Color = clWindowText
diff --git a/samples/MultiDemo/VCLChessboardCorners/MainForm.pas b/samples/MultiDemo/VCLChessboardCorners/MainForm.pas
index af14065..e0e6866 100644
--- a/samples/MultiDemo/VCLChessboardCorners/MainForm.pas
+++ b/samples/MultiDemo/VCLChessboardCorners/MainForm.pas
@@ -1,11 +1,27 @@
-(* /  **************************************************************************************************
-  //  Print the Calibration_Chess.png file present in Delphi-OpenCV\Bin\Resource.
-  //  Then keep it in front on camera...
+(* /*****************************************************************
+  //                       Delphi-OpenCV Demo
+  //               Copyright (C) 2013 Project Delphi-OpenCV
+  // ****************************************************************
+  // Contributor:
+  // Samuele Trentin
+  // ****************************************************************
+  // You may retrieve the latest version of this file at the GitHub,
+  // located at git://github.com/Laex/Delphi-OpenCV.git
+  // ****************************************************************
+  // The contents of this file are used with permission, subject to
+  // the Mozilla Public License Version 1.1 (the "License"); you may
+  // not use this file except in compliance with the License. You may
+  // obtain a copy of the License at
+  // http://www.mozilla.org/MPL/MPL-1_1Final.html
   //
-  //  Note: cvFindChessboardCorners
-  //  ************************************************************************************************** *)
-
-
+  // Software distributed under the License is distributed on an
+  // "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+  // implied. See the License for the specific language governing
+  // rights and limitations under the License.
+  ******************************************************************* *)
+// JCL_DEBUG_EXPERT_GENERATEJDBG OFF
+// JCL_DEBUG_EXPERT_INSERTJDBG OFF
+// JCL_DEBUG_EXPERT_DELETEMAPFILE OFF
 unit MainForm;
 
 interface
diff --git a/samples/MultiDemo/VCLChessboardCorners/VCLChessboardCorners.dproj b/samples/MultiDemo/VCLChessboardCorners/VCLChessboardCorners.dproj
index 94ff782..5a05e83 100644
--- a/samples/MultiDemo/VCLChessboardCorners/VCLChessboardCorners.dproj
+++ b/samples/MultiDemo/VCLChessboardCorners/VCLChessboardCorners.dproj
@@ -74,7 +74,7 @@
         <DCC_RangeChecking>true</DCC_RangeChecking>
         <VerInfo_IncludeVerInfo>true</VerInfo_IncludeVerInfo>
         <VerInfo_Locale>1033</VerInfo_Locale>
-        <DCC_ExeOutput>C:\Delphi\Delphi-OpenCV\Bin\</DCC_ExeOutput>
+        <DCC_ExeOutput>..\..\..\bin</DCC_ExeOutput>
         <DCC_RemoteDebug>false</DCC_RemoteDebug>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Cfg_2)'!=''">
@@ -153,8 +153,8 @@
                     <Source Name="MainSource">VCLChessboardCorners.dpr</Source>
                 </Source>
                 <Excluded_Packages>
-                    <Excluded_Packages Name="$(BDSBIN)\dcloffice2k180.bpl">Microsoft Office 2000 Sample Automation Server Wrapper Components</Excluded_Packages>
-                    <Excluded_Packages Name="$(BDSBIN)\dclofficexp180.bpl">Microsoft Office XP Sample Automation Server Wrapper Components</Excluded_Packages>
+                    <Excluded_Packages Name="$(BDSBIN)\dcloffice2k170.bpl">Microsoft Office 2000 Sample Automation Server Wrapper Components</Excluded_Packages>
+                    <Excluded_Packages Name="$(BDSBIN)\dclofficexp170.bpl">Microsoft Office XP Sample Automation Server Wrapper Components</Excluded_Packages>
                 </Excluded_Packages>
             </Delphi.Personality>
             <Deployment/>