Help Version 19.0.2017.10.27
References ▼
To add code to an existing project in order to paint pages and zones:
1. |
Start with the program you created in Working with Zones. |
2. |
Define the following global variables in EZFUNC.H in the OCR_Ltdoc2 directory: |
L_BOOL bDrawZones;L_BOOL bDrawPage;
3. |
Define the following global IDs in Ezfunc.h in the OCR_Ltdoc2 directory: |
#define IDM_DRAW_ZONES 204
4. |
Edit EZFUNC.RC file in the OCR_Ltdoc2 directory and add the following lines: |
MAIN_MENU MENUBEGIN......MENUITEM "Enable Draw Zones" IDM_DRAW_ZONESEND
5. |
In Ezfunc.cpp in the MainWndProc procedure, add the following code to the switch statement for WM_COMMAND: |
case IDM_DRAW_ZONES:bDrawZones = !bDrawZones;InvalidateRect (hWnd, NULL, FALSE);break;
6. |
In EZFUNC.CPP under WM_CREATE inside IDM_INSERT_PAGE, add the following after "L_Doc2AddPage()if (nRet != SUCCESS){}" : |
L_Doc2SetActivePage(hDoc, 0);bDrawPage = TRUE;/* Get the client area of the adjusted window */GetClientRect(hWnd,&rClientSize);/* Make the destination rectangle for painting the same as the client area */rLeadDest = rClientSize;
7. |
In the MainWndProc procedure, replace the following code to WM_PAINT (Refer to documentation for an explanation of L_Doc2DrawPage function): |
case WM_PAINT:hdc = BeginPaint (hWnd, &ps);if (bDrawPage){if (hpalPaint) /* If we have a paint palette, select it */{hPalette = SelectPalette (hdc, hpalPaint, TRUE);/* Uncomment this if you do not process WM_QUERYNEWPALETTE *//* RealizePalette (hdc); */}L_Doc2DrawPage(hDoc, hdc, 0, NULL, NULL, &rLeadDest, &ps.rcPaint, SRCCOPY, bDrawZones);if (hpalPaint) /* Return old palette */SelectPalette (hdc, hPalette, TRUE);}EndPaint (hWnd, &ps); /* Return DC */return 0;
8. |
Build SimpleLoad.exe. |
9. |
Run SimpleLoad.exe. |