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:\Program Files\LEAD Technologies\LEADTOOLS 15\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 ;

Add the following lines in Imports.cpp

#if defined(FOR_WIN64)

…

#pragma comment(lib, "..\\..\\..\\..\\..\\..\\Lib\\API\\x64\\ltpdg_x.lib")

…

#elif defined(FOR_WIN32)

…

#pragma comment(lib, "..\\..\\..\\..\\..\\..\\Lib\\API\\Win32\\ltpdg_u.lib")

…

#endif

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

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