Help Version 19.0.2017.10.27
References ▼
Start with the project you created in Low-Level DigitalPaint: Painting with a Brush.
1. |
Add the following item to the popup menu "Painting Test " that you added to the main menu: |
&Painting Test&Shape with ID = IDM_PAINTTEST_SHAPE
2. |
Add the following function before the OnOpen function definition: |
static L_VOID OnShape ( HWND hWnd, pPAINTHANDLE pPaint ){HDC hDC ;PAINTSHAPE shape;// Set the required shape propertiesshape.nSize = sizeof ( PAINTSHAPE ) ;shape.dwMask = PSF_BORDERWIDTH |PSF_BORDERSTYLE |PSF_BORDERCOLOR |PSF_BORDERENDCAP ;shape.nBorderWidth = 10 ;shape.nBorderStyle = PAINT_SHAPE_BORDER_STYLE_DASHDOT ;shape.crBorderColor = RGB ( 255, 0, 0 ) ;shape.nBorderEndCap = PAINT_SHAPE_BORDER_ENDCAP_ROUND ;// Set the new shape propertiesL_PntSetProperty ( pPaint, PAINT_GROUP_SHAPE, &shape ) ;// Get device context to draw onhDC = GetDC ( hWnd ) ;// Use the current shape properties to draw a line to the currently selected bitmapL_PntDrawShapeLine ( pPaint, hDC, 10, 10, 400, 400 ) ;// Release the device contextReleaseDC ( hWnd, hDC ) ;}
3. |
Add the following line after the "return 0L ;" of the "case IDM_PAINTTEST_BRUSH:" statement: |
case IDM_PAINTTEST_SHAPE:OnShape ( hWnd, pPaint ) ;return 0L ;
4. |
Compile and run the project by selecting Build->Execute tutorial.exe from the menu. |
5. |
Go to the "File" menu and use the "Open" item to open an image. |
6. |
Go to the "Painting Test" and select the "Shape" item. This will draw a line using the current shape properties. |