Take the following steps to implement paint automation:
1. |
Start Visual C++, version 2005. |
2. |
Select the File->New menu option, and in the dialog box, select Project. |
3. |
In the New Project dialog box, make sure to select Visual C++ Win32 from the tree on the left of the dialog, and select Win32 Project as the project template. Give the Solution Name Tutorial_Automation and Give the project the name " Tutorial_Automation " and click OK. |
4. |
Win32 Application Wizard will initialize, click finish. |
5. |
In the Solution Explorer, browse to Tutorial_Automation.rc file and double click it. It will open the resource file in the view area. |
6. |
To add a new menu item in the File menu, open the File menu in the resource file you just opened in the view area, select a new location at the bottom of the menu, and type Open to add the new menu item Open.
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7. |
In stdafx.h add the following header after #include<tchar.h>: (keep in mind, you may have to change the path to where the header files reside): |
#include <commdlg.h>#include "C:\LEADTOOLS 19\Include\l_bitmap.h"#include "C:\LEADTOOLS 19\Include\ltdlg.h"#include "C:\LEADTOOLS 19\Include\ltcon.h"#include "C:\LEADTOOLS 19\Include\lttlb.h"#include "C:\LEADTOOLS 19\Include\ltpnt.h"#include "C:\LEADTOOLS 19\Include\ltaut.h"
| 8. | Create a new file called Imports.cpp in place it beside your project files. | |
| a. | In the Project Workspace, click the Solution Explorer tab. | |
| b. | Double-click the Tutorial_Automation folder to open it. | |
| c. | Right-click the Source files folder and select Add New item. | |
| d. | Right-click on the Source file | |
| e. | Expand Visual C++ tree, if it is not already expanded. | |
| f. | Select Code from the sub tree. | |
| g. | Select C++ File (.cpp) from the right window. | |
| h. | In the name text box, specify Imports. | |
| i. | Click the OK button. | |
| j. | Double-click the imports.cpp in the solution Explorer and add the following lines: (keep in mind, you may have to change the path to where the header files reside) | |
#if defined(FOR_WIN64)#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\Ltkrn_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\Ltdis_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\Ltdlgkrn_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\Ltdlgfile_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\Ltfil_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\ltaut_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\ltcon_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\lttlb_x.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\x64\\ltpdg_x.lib")#elif defined(FOR_WIN32)#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\Ltkrn_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\Ltdis_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\Ltdlgkrn_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\Ltdlgfile_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\Ltfil_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\ltaut_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\ltcon_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\lttlb_u.lib")#pragma comment(lib, "C:\\LEADTOOLS 19\\Lib\\CDLL\\Win32\\ltpdg_u.lib")#endif // #if defined(FOR_WIN64)
9. |
Add the following functions in Tutorial_Automation.cpp right before WndProc procedure. |
static L_VOID OnSize(HWND hWnd,pBITMAPHANDLE pBitmap,LPRECT prcView,L_INT cx,L_INT cy,L_INT nScalarNum,L_INT nScalarDen,L_INT *pnHScroll,L_INT *pnVScroll){SCROLLINFO si ;L_INT nXOffset, nYOffset ;if ( NULL != pBitmap && pBitmap->Flags.Allocated ){si.cbSize = sizeof ( SCROLLINFO ) ;si.fMask = SIF_ALL ;// vertical scroll.GetScrollInfo ( hWnd, SB_VERT, &si ) ;si.nMin = 0 ;si.nMax = BITMAPHEIGHT ( pBitmap ) ;si.nPage = MulDiv ( cy, nScalarDen, nScalarNum ) ;SetScrollInfo ( hWnd, SB_VERT, &si, TRUE ) ;GetScrollInfo ( hWnd, SB_VERT, &si ) ;*pnVScroll = si.nPos ;// horizontal scrollGetScrollInfo ( hWnd, SB_HORZ, &si ) ;si.nMin = 0 ;si.nMax = BITMAPWIDTH ( pBitmap ) ;si.nPage = MulDiv ( cx, nScalarDen, nScalarNum ) ;SetScrollInfo ( hWnd, SB_HORZ, &si, TRUE ) ;GetScrollInfo ( hWnd, SB_HORZ, &si ) ;*pnHScroll = si.nPos ;}else{si.cbSize = sizeof ( SCROLLINFO ) ;si.fMask = SIF_RANGE ;si.nMin = 0 ;si.nMax = 0 ;SetScrollInfo ( hWnd, SB_VERT, &si, TRUE ) ;SetScrollInfo ( hWnd, SB_HORZ, &si, TRUE ) ;*pnHScroll = 0 ;*pnVScroll = 0 ;}// set the painting rectangle.SetRect ( prcView, 0, 0, BITMAPWIDTH ( pBitmap ), BITMAPHEIGHT ( pBitmap ) ) ;if ( nScalarDen > nScalarNum ){nXOffset = MulDiv ( *pnHScroll, nScalarDen, nScalarNum ) ;nYOffset = MulDiv ( *pnVScroll, nScalarDen, nScalarNum ) ;}else{nXOffset = *pnHScroll ;nYOffset = *pnVScroll ;}OffsetRect ( prcView, - nXOffset, - nYOffset ) ;prcView->left = MulDiv ( prcView->left, nScalarNum, nScalarDen ) ;prcView->top = MulDiv ( prcView->top, nScalarNum, nScalarDen ) ;prcView->right = MulDiv ( prcView->right, nScalarNum, nScalarDen ) ;prcView->bottom = MulDiv ( prcView->bottom, nScalarNum, nScalarDen ) ;}L_VOID OnHScroll(HWND hWnd,L_UINT code,L_INT nScalarNum,L_INT nScalarDen,LPRECT prcView,L_INT *pnHScroll,L_INT *pnVScroll){SCROLLINFO si ;si.cbSize = sizeof (SCROLLINFO) ;si.fMask = SIF_ALL ;GetScrollInfo (hWnd, SB_HORZ, &si) ;*pnHScroll = si.nPos ;switch ( code ){case SB_LINELEFT:si.nPos -= 1 ;break ;case SB_LINERIGHT:si.nPos += 1 ;break ;case SB_PAGELEFT:si.nPos -= si.nPage ;break ;case SB_PAGERIGHT:si.nPos += si.nPage ;break ;case SB_THUMBTRACK:si.nPos = si.nTrackPos ;break ;default:break ;}si.fMask = SIF_POS;SetScrollInfo (hWnd, SB_HORZ, &si, TRUE) ;GetScrollInfo (hWnd, SB_HORZ, &si) ;if ( si.nPos != *pnHScroll ){L_INT dxUpdate ;// update screen.if ( nScalarDen < nScalarNum ){dxUpdate = MulDiv ( ( *pnHScroll - si.nPos ), nScalarNum, nScalarDen ) ;}else{dxUpdate = *pnHScroll - si.nPos ;}// update screen.OffsetRect ( prcView, dxUpdate, 0 ) ;ScrollWindow ( hWnd, dxUpdate, 0, NULL, NULL ) ;*pnHScroll = si.nPos ;UpdateWindow ( hWnd ) ;}}L_VOID OnVScroll(HWND hWnd,L_UINT code,L_INT nScalarNum,L_INT nScalarDen,LPRECT prcView,L_INT *pnHScroll,L_INT *pnVScroll){SCROLLINFO si;si.cbSize = sizeof ( SCROLLINFO ) ;si.fMask = SIF_ALL ;GetScrollInfo (hWnd, SB_VERT, &si) ;*pnVScroll = si.nPos ;switch ( code ){case SB_LINEUP:si.nPos -= 1 ;break ;case SB_LINEDOWN:si.nPos += 1 ;break ;case SB_PAGEUP:si.nPos -= si.nPage ;break ;case SB_PAGEDOWN:si.nPos += si.nPage ;break ;case SB_THUMBTRACK:si.nPos = si.nTrackPos ;break ;default:break ;}si.fMask = SIF_POS ;SetScrollInfo ( hWnd, SB_VERT, &si, TRUE ) ;GetScrollInfo ( hWnd, SB_VERT, &si ) ;if ( si.nPos != *pnVScroll ){L_INT dyUpdate ;// update screen.if ( nScalarDen < nScalarNum ){dyUpdate = MulDiv ( ( *pnVScroll - si.nPos ), nScalarNum, nScalarDen ) ;}else{dyUpdate = *pnVScroll - si.nPos ;}// update screen.OffsetRect ( prcView, 0, dyUpdate ) ;ScrollWindow ( hWnd, 0, dyUpdate, NULL, NULL ) ;*pnVScroll = si.nPos ;UpdateWindow ( hWnd ) ;}}L_VOID OnPaint(HWND hWnd,pBITMAPHANDLE pBitmap,LPRECT prcView,HPALETTE hPalette){HDC hDC ;PAINTSTRUCT ps ;HPALETTE hOldPal = NULL ;hDC = BeginPaint (hWnd, &ps) ;if ( pBitmap->Flags.Allocated ){if ( hPalette ){hOldPal = SelectPalette ( hDC, hPalette, TRUE ) ;RealizePalette ( hDC ) ;}L_PaintDC ( hDC, pBitmap, NULL, NULL, prcView, &ps.rcPaint, SRCCOPY ) ;if ( NULL != hOldPal ){SelectPalette ( hDC, hOldPal, TRUE ) ;}}EndPaint (hWnd, &ps) ;}static L_BOOL OnOpen ( HWND hWnd, pBITMAPHANDLE pBitmap ){static L_INT nOpenIndex = 0 ;OPENFILENAME OpenFileName ;L_TCHAR szFile [ MAX_PATH ] = TEXT("\0") ;L_TCHAR szFileTitle [ MAX_PATH ] = TEXT("\0") ;L_TCHAR szOpenFileFilter [ ] = {TEXT("ALL\0")TEXT("*.*\0")} ;OPENDLGPARAMS OpenDlgParams ;BITMAPHANDLE hThumb ;L_INT nRet;memset ( &OpenDlgParams, 0, sizeof ( OPENDLGPARAMS ) ) ;lstrcpy ( szFile, TEXT("") ) ;L_InitBitmap ( pBitmap, sizeof(BITMAPHANDLE), 0, 0, 0 ) ;L_InitBitmap ( &hThumb, sizeof(BITMAPHANDLE), 0, 0, 0 ) ;OpenFileName.lStructSize = sizeof(OPENFILENAME);OpenFileName.hwndOwner = hWnd;OpenFileName.lpstrFilter = szOpenFileFilter;OpenFileName.lpstrCustomFilter = NULL;OpenFileName.nMaxCustFilter = 0;OpenFileName.nFilterIndex = nOpenIndex;OpenFileName.nMaxFile = sizeof(szFile);OpenFileName.lpstrFile = szFile;OpenFileName.nMaxFileTitle = sizeof(szFileTitle);OpenFileName.lpstrFileTitle = szFileTitle;OpenFileName.lpstrInitialDir = NULL;OpenFileName.lpstrTitle = TEXT("Open a File");OpenFileName.nFileOffset = 0;OpenFileName.nFileExtension = 0;OpenFileName.lpstrDefExt = NULL;OpenFileName.lpfnHook = NULL;OpenFileName.Flags = OFN_LONGNAMES ;OpenDlgParams.uStructSize = sizeof(OPENDLGPARAMS);OpenDlgParams.bPreviewEnabled = TRUE;OpenDlgParams.uDlgFlags = DLG_OPEN_SHOW_PREVIEW |DLG_OPEN_SHOW_FILEINFO;nRet = L_DlgOpen ( hWnd, &OpenFileName, &OpenDlgParams );if (nRet == SUCCESS_DLG_OK){nOpenIndex = OpenFileName.nFilterIndex;L_FreeBitmap ( &hThumb ) ;L_LoadBitmap (OpenDlgParams.pFileData[0].szFileName, pBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGRORGRAY, NULL, NULL);L_ChangeBitmapViewPerspective ( NULL, pBitmap, sizeof(BITMAPHANDLE), TOP_LEFT );return TRUE ;}else{return FALSE ;}}
10. |
Change the WndProc function to look like this: |
LRESULT CALLBACK WndProc( HWND hWnd, L_UINT uMessage, WPARAM wParam, LPARAM lParam ){static BITMAPHANDLE hBitmap ;static RECT rcView ;static HPALETTE hPalette = NULL ;static L_INT nVScroll = 0 ;static L_INT nHScroll = 0 ;static L_INT nScalarNum = 1, nScalarDen = 1 ;switch( uMessage ){case WM_CREATE:L_DlgInit (DLG_INIT_COLOR);return 0L ;case WM_DESTROY:if ( hBitmap.Flags.Allocated ){L_FreeBitmap ( &hBitmap ) ;}if ( hPalette ){DeleteObject( hPalette ) ;}PostQuitMessage ( 0 ) ;return 0L ;case WM_SIZE:OnSize ( hWnd,&hBitmap,&rcView,LOWORD ( lParam ),HIWORD ( lParam ),nScalarNum,nScalarDen,&nHScroll,&nVScroll ) ;break ;case WM_HSCROLL:OnHScroll ( hWnd,LOWORD ( wParam ),nScalarNum,nScalarDen,&rcView,&nHScroll,&nVScroll ) ;break ;case WM_VSCROLL:OnVScroll ( hWnd,LOWORD ( wParam ),nScalarNum,nScalarDen,&rcView,&nHScroll,&nVScroll ) ;break ;case WM_PAINT:OnPaint ( hWnd, &hBitmap, &rcView, hPalette ) ;break ;case WM_COMMAND:switch( LOWORD( wParam ) ){case ID_FILE_OPEN:{BITMAPHANDLE hTempBitmap ;HDC hDC ;if ( OnOpen ( hWnd, &hTempBitmap ) ){if ( hBitmap.Flags.Allocated ){L_FreeBitmap ( &hBitmap ) ;}if ( hPalette ){DeleteObject( hPalette ) ;}nScalarNum = 1 ;nScalarDen = 1 ;L_CopyBitmapHandle (&hBitmap, &hTempBitmap , sizeof(BITMAPHANDLE)) ;hDC = GetDC ( hWnd ) ;hPalette = L_CreatePaintPalette ( hDC, &hBitmap ) ;ReleaseDC ( hWnd, hDC ) ;{//ADJUST WINDOW SIZERECT rcWindow ;L_INT nWidth, nHeight ;SystemParametersInfo ( SPI_GETWORKAREA, 0, &rcWindow, 0 ) ;nWidth = min ( MulDiv ( BITMAPWIDTH ( &hBitmap ), nScalarNum, nScalarDen ),( rcWindow.right - rcWindow.left ) ) ;nHeight = min ( MulDiv ( BITMAPHEIGHT ( &hBitmap ), nScalarNum, nScalarDen ),( rcWindow.bottom - rcWindow.top ) ) ;MoveWindow ( hWnd,0,0,nWidth,nHeight,TRUE ) ;}//ADJUST WINDOW SIZEInvalidateRect ( hWnd, NULL, TRUE ) ;}}return 0L ;case IDM_EXIT:PostMessage ( hWnd, WM_CLOSE, 0, 0 ) ;return 0L ;}break ;}return DefWindowProc ( hWnd, uMessage, wParam, lParam ) ;}
11. |
Change the _tWinMain function to look like this: |
int APIENTRY _tWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPTSTR lpCmdLine,int nCmdShow){const L_TCHAR szClassName [ ] = TEXT("lead_paint_automation_tutorial") ;WNDCLASSEX WndClass ;HWND hWnd ;MSG Msg ;UNREFERENCED_PARAMETER ( hPrevInstance ) ;UNREFERENCED_PARAMETER ( lpCmdLine ) ;// unlock lead file formats supportUNLOCKSUPPORT ( ) ;WndClass.cbSize = sizeof ( WNDCLASSEX ) ;WndClass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;WndClass.lpfnWndProc = WndProc ;WndClass.cbClsExtra = 0 ;WndClass.cbWndExtra = 0 ;WndClass.hInstance = hInst ;WndClass.hIcon = LoadIcon ( NULL, IDI_APPLICATION ) ;WndClass.hCursor = LoadCursor ( NULL, IDC_ARROW ) ;WndClass.hbrBackground = ( HBRUSH ) ( COLOR_WINDOW + 1 ) ;WndClass.lpszMenuName = MAKEINTRESOURCE ( IDC_TUTORIAL_AUTOMATION) ;WndClass.lpszClassName = szClassName ;WndClass.hIconSm = NULL ;RegisterClassEx ( &WndClass ) ;hWnd = CreateWindowEx ( 0L,szClassName,TEXT("Paint Automation Tutorial"),WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,0,CW_USEDEFAULT,0,NULL,NULL,hInst,NULL ) ;ShowWindow ( hWnd, nCmdShow ) ;UpdateWindow ( hWnd ) ;while ( GetMessage ( &Msg, NULL, 0, 0 ) != 0 ){TranslateMessage ( &Msg ) ;DispatchMessage ( &Msg ) ;}UnregisterClass ( szClassName, hInst ) ;return (L_INT)Msg.wParam ;}
12. |
Add the following declaration to the WndProc function: |
static pAUTOMATIONHANDLE pAutomation ; 13. |
Replace the line "return 0L ;" after the statement "case WM_CREATE:" in the WndProc function with the following code: |
if ( SUCCESS == L_AutInit ( &pAutomation ) ){// create the paint automationif ( SUCCESS != L_AutCreate ( pAutomation, AUTOMATION_MODE_PAINT, 0 ) ){MessageBox ( hWnd, TEXT("Error creating Paint Automation"), TEXT("Error:"), MB_ICONSTOP );L_AutFree (pAutomation ) ;return -1 ;}return 0L ;}else{return -1L ;}
14. |
Add the following lines to the WndProc function before the statement "PostQuitMessage" in the "case WM_DESTROY:" |
if ( SUCCESS == L_AutIsValid ( pAutomation ) ){L_AutFree ( pAutomation ) ;}
15. |
Compile and run the project by selecting Build->Execute tutorial.exe from the menu. |
