Low-Level DigitalPaint: Using the DigitalPaint Common Dialogs

Start with the project you created in Low-Level DigitalPaint: Processing the Window Activation Messages.

1. Add the following popup menu to the main menu you created in Low-Level DigitalPaint: Initializing and Freeing a Paint Handle
   • &Dialog Test
   • &Shape with ID = IDM_DIALOGTEST_SHAPE
2. In stdafx.h add the following headers: (keep in mind, you may have to change the path to where the header files reside):

   #include "C:\LEADTOOLS23\Include\Ltpdg.h" 

3. Add the following function before the OnOpen function definition:

   L_VOID OnShapeDlg ( HWND hWnd, pPAINTHANDLE pPaint ) 
   { 
      PAINTSHAPE shape ; 
      PAINTDLGSHAPEINFO ShapeDlgInfo ; 
      L_INT nRet ; 
      RECT rcRect; 
      HDC hdcTest; 
      hdcTest = GetDC (hWnd); 
      L_PntGetProperty ( pPaint, PAINT_GROUP_SHAPE, &shape ) ; 
      ShapeDlgInfo.dwFlags = PAINT_DLG_SHAPE_SHOWALL ; 
      ShapeDlgInfo.pszTitle = TEXT("Shape Properties"); 
      ShapeDlgInfo.nBackgroundStyle = shape.nBackgroundStyle ; 
      ShapeDlgInfo.crBackgroundColor = shape.crBackgroundColor ; 
      ShapeDlgInfo.ppszBackgroundTileBitmap = NULL ; 
      ShapeDlgInfo.uBackgroundTileBitmapCount = 0 ; 
      ShapeDlgInfo.nActiveBackgroundTileBitmapItem = -1 ; 
      ShapeDlgInfo.nBorderStyle = shape.nBorderStyle ; 
      ShapeDlgInfo.nBorderBrushStyle = shape.nBorderBrushStyle ; 
      ShapeDlgInfo.crBorderColor = shape.crBorderColor ; 
      ShapeDlgInfo.ppszBorderTileBitmap = NULL ; 
      ShapeDlgInfo.uBorderTileBitmapCount = 0 ; 
      ShapeDlgInfo.nActiveBorderTileBitmapItem  = -1 ; 
      ShapeDlgInfo.nBorderWidth = shape.nBorderWidth ; 
      ShapeDlgInfo.nBorderEndCap = shape.nBorderEndCap ; 
      ShapeDlgInfo.nGradientStyle = shape.nGradientStyle ; 
      ShapeDlgInfo.crGradientStartColor = shape.crGradientStartColor ; 
      ShapeDlgInfo.crGradientEndColor = shape.crGradientEndColor ; 
      ShapeDlgInfo.uGradientSteps = shape.uGradientSteps ; 
      ShapeDlgInfo.nRoundRectEllipseWidth = shape.nRoundRectEllipseWidth ; 
      ShapeDlgInfo.nRoundRectEllipseHeight = shape.nRoundRectEllipseHeight ; 
      ShapeDlgInfo.nOpacity = shape.nOpacity ; 
      ShapeDlgInfo.ppszPaperTexture = NULL ; 
      ShapeDlgInfo.uPaperTextureCount = 0 ; 
      ShapeDlgInfo.nActivePaperTextureItem = -1 ; 
      nRet = L_PntDlgShape ( hWnd, &ShapeDlgInfo ) ; 
      if ( SUCCESS == nRet ) 
      { 
         shape.nSize = sizeof ( PAINTSHAPE ) ; 
         shape.dwMask = PSF_ALL ; 
         shape.nBackgroundStyle = ShapeDlgInfo.nBackgroundStyle ; 
         shape.crBackgroundColor = ShapeDlgInfo.crBackgroundColor ; 
         shape.pBackgroundTileBitmap = NULL ; 
         shape.nBorderStyle = ShapeDlgInfo.nBorderStyle ; 
         shape.nBorderBrushStyle = ShapeDlgInfo.nBorderBrushStyle ; 
         shape.crBorderColor = ShapeDlgInfo.crBorderColor ; 
         shape.hBorderTileBitmap = NULL ; 
         shape.nBorderWidth = ShapeDlgInfo.nBorderWidth ; 
         shape.nBorderEndCap = ShapeDlgInfo.nBorderEndCap ; 
         shape.nGradientStyle = ShapeDlgInfo.nGradientStyle ; 
         shape.crGradientStartColor = ShapeDlgInfo.crGradientStartColor ; 
         shape.crGradientEndColor = ShapeDlgInfo.crGradientEndColor ; 
         shape.uGradientSteps = ShapeDlgInfo.uGradientSteps ; 
         shape.nRoundRectEllipseWidth = ShapeDlgInfo.nRoundRectEllipseWidth ; 
         shape.nRoundRectEllipseHeight = ShapeDlgInfo.nRoundRectEllipseHeight ; 
         shape.nOpacity = ShapeDlgInfo.nOpacity ; 
         shape.pTexture = NULL ; 
         L_PntSetProperty ( pPaint, PAINT_GROUP_SHAPE, &shape ) ; 
         // now draw something to see the results of the dialog settings 
         SetRect(&rcRect, 10, 10, 100, 100); 
         L_PntDrawShapeRectangle(pPaint, hdcTest, &rcRect); 
      } 
   } 

4. Add the following line after the "return 0L ;" of the "case IDM_PAINTTEST_TEXT:" statement:

   case IDM_DIALOGTEST_SHAPE:   
                  OnShapeDlg ( hWnd, pPaint ) ;   
                  return 0L ; 

5. Add the following lines in Imports.cpp

   #if defined(FOR_WIN64)</p> 
       #pragma comment(lib, "..\\..\\..\\..\\..\\..\\Lib\\CDLL\\x64\\ltpdg_x.lib") 
   #elif defined(FOR_WIN32)</p> 
       #pragma comment(lib, "..\\..\\..\\..\\..\\..\\Lib\\CDLL\\Win32\\ltpdg_u.lib") 
   #endif 

6. Compile and run the project by selecting Build->Execute tutorial.exe from the menu.

7. Go to the "Dialog Test" menu and select the item "Shape" to start playing with the shape dialog.