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- /*-------------------------------------------------------------------
- PRINT.C -- Common routines for Print1, Print2, Print3, and Print4
- -------------------------------------------------------------------*/
-
- #include <windows.h>
-
- LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
- BOOL PrintMyPage (HWND) ;
-
- extern HINSTANCE hInst ;
- extern char szAppName[] ;
- extern char szCaption[] ;
-
- int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
- PSTR szCmdLine, int iCmdShow)
- {
- HWND hwnd ;
- MSG msg ;
- WNDCLASSEX wndclass ;
-
- wndclass.cbSize = sizeof (wndclass) ;
- wndclass.style = CS_HREDRAW | CS_VREDRAW ;
- wndclass.lpfnWndProc = WndProc ;
- wndclass.cbClsExtra = 0 ;
- wndclass.cbWndExtra = 0 ;
- wndclass.hInstance = hInstance ;
- wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
- wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
- wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
- wndclass.lpszMenuName = NULL ;
- wndclass.lpszClassName = szAppName ;
- wndclass.hIconSm = LoadIcon (NULL, IDI_APPLICATION) ;
-
- RegisterClassEx (&wndclass) ;
-
- hInst = hInstance ;
-
- hwnd = CreateWindow (szAppName, szCaption,
- WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, CW_USEDEFAULT,
- CW_USEDEFAULT, CW_USEDEFAULT,
- NULL, NULL, hInstance, NULL) ;
-
- ShowWindow (hwnd, iCmdShow) ;
- UpdateWindow (hwnd) ;
-
- while (GetMessage (&msg, NULL, 0, 0))
- {
- TranslateMessage (&msg) ;
- DispatchMessage (&msg) ;
- }
- return msg.wParam ;
- }
-
- HDC GetPrinterDC (void)
- {
- PRINTER_INFO_5 pinfo5[3] ;
- DWORD dwNeeded, dwReturned ;
-
- if (EnumPrinters (PRINTER_ENUM_DEFAULT, NULL, 5, (LPBYTE) pinfo5,
- sizeof (pinfo5), &dwNeeded, &dwReturned))
- return CreateDC (NULL, pinfo5[0].pPrinterName, NULL, NULL) ;
-
- return 0 ; // EnumPrinters failed, so return null hdc
- }
-
- void PageGDICalls (HDC hdcPrn, int cxPage, int cyPage)
- {
- static char szTextStr[] = "Hello, Printer!" ;
-
- Rectangle (hdcPrn, 0, 0, cxPage, cyPage) ;
-
- MoveToEx (hdcPrn, 0, 0, NULL) ;
- LineTo (hdcPrn, cxPage, cyPage) ;
- MoveToEx (hdcPrn, cxPage, 0, NULL) ;
- LineTo (hdcPrn, 0, cyPage) ;
-
- SaveDC (hdcPrn) ;
-
- SetMapMode (hdcPrn, MM_ISOTROPIC) ;
- SetWindowExtEx (hdcPrn, 1000, 1000, NULL) ;
- SetViewportExtEx (hdcPrn, cxPage / 2, -cyPage / 2, NULL) ;
- SetViewportOrgEx (hdcPrn, cxPage / 2, cyPage / 2, NULL) ;
-
- Ellipse (hdcPrn, -500, 500, 500, -500) ;
-
- SetTextAlign (hdcPrn, TA_BASELINE | TA_CENTER) ;
-
- TextOut (hdcPrn, 0, 0, szTextStr, sizeof (szTextStr) - 1) ;
-
- RestoreDC (hdcPrn, -1) ;
- }
-
- LRESULT CALLBACK WndProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
- {
- static int cxClient, cyClient ;
- HDC hdc ;
- HMENU hMenu ;
- PAINTSTRUCT ps ;
-
- switch (msg)
- {
- case WM_CREATE :
- hMenu = GetSystemMenu (hwnd, FALSE) ;
- AppendMenu (hMenu, MF_SEPARATOR, 0, NULL) ;
- AppendMenu (hMenu, 0, 1, "&Print") ;
- return 0 ;
-
- case WM_SIZE :
- cxClient = LOWORD (lParam) ;
- cyClient = HIWORD (lParam) ;
- return 0 ;
-
- case WM_SYSCOMMAND :
- if (wParam == 1)
- {
- if (PrintMyPage (hwnd))
- MessageBox (hwnd, "Could not print page!",
- szAppName, MB_OK | MB_ICONEXCLAMATION) ;
- return 0 ;
- }
- break ;
-
- case WM_PAINT :
- hdc = BeginPaint (hwnd, &ps) ;
-
- PageGDICalls (hdc, cxClient, cyClient) ;
-
- EndPaint (hwnd, &ps) ;
- return 0 ;
-
- case WM_DESTROY :
- PostQuitMessage (0) ;
- return 0 ;
- }
- return DefWindowProc (hwnd, msg, wParam, lParam) ;
- }
-