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//該結(jié)構(gòu)用于存儲各列的信息
typedef struct tagColAtt { int nColIndex; CString strColText; int nPrintX; int nSubItemIndex; }COLATT; BOOL PrintListCtrl(CListCtrl &list) { PRINTDLG pd; pd.lStructSize = sizeof(PRINTDLG); pd.Flags = PD_RETURNDC; pd.hDC = NULL; pd.hwndOwner = NULL; pd.hInstance = NULL; pd.nMaxPage = 1; pd.nMinPage = 1; pd.nFromPage = 1; pd.nToPage = 1; pd.nCopies = 1; pd.hDevMode = NULL; pd.hDevNames = NULL; //顯示打印對話框,由用戶來設定紙張大小等。 if(!PrintDlg(&pd)) return FALSE; ASSERT(pd.hDC!=NULL); int nHorRes = GetDeviceCaps(pd.hDC, HORZRES); int nVerRes = GetDeviceCaps(pd.hDC, VERTRES); int nXMargin = 2; int nYMargin = 2; TEXTMETRIC tm; GetTextMetrics(pd.hDC, &tm); int nCharHeight = tm.tmHeight; int nCharWidth = tm.tmAveCharWidth; CHeaderCtrl* pHeader = list.GetHeaderCtrl(); //獲得行,列的個數(shù) int nColCount = pHeader-> GetItemCount(); int nLineCount = list.GetItemCount(); int ColOrderArray[100]; COLATT ca[100]; list.GetColumnOrderArray(ColOrderArray, nColCount); int nColX =nXMargin*nCharWidth; //檢索各列的信息,確定列標題的內(nèi)容長度。 for(int i =0 ; i < nColCount; i++) { ca[i].nColIndex = ColOrderArray[i]; LVCOLUMN lvc; char text[100]; lvc.mask = LVCF_TEXT|LVCF_SUBITEM; lvc.pszText = text; lvc.cchTextMax = 100; list.GetColumn(ca[i].nColIndex, &lvc); ca[i].strColText = lvc.pszText; ca[i].nSubItemIndex = lvc.iSubItem; ca[i].nPrintX = nColX; nColX += nCharWidth * strlen(ca[i].strColText); if(nColX > nHorRes) { DeleteDC(pd.hDC); AfxMessageBox( "字段太多,無法在一行內(nèi)打印,請試用較大的紙,或橫向打印。 "); return FALSE; } } DOCINFO di; di.cbSize = sizeof(DOCINFO); di.lpszDocName = "ListCtrl Data Printing "; di.lpszOutput = (LPTSTR) NULL; di.lpszDatatype = (LPTSTR) NULL; di.fwType = 0; StartDoc(pd.hDC, &di); StartPage(pd.hDC); //調(diào)整各列的寬度,以使各列在后面的打印輸出時更均勻的打印在紙上。 int space = (nHorRes-nXMargin*nCharWidth-nColX) / (nColCount -1); for(i =1; i <nColCount; i++) { ca[i].nPrintX += i*space; } //輸出列標題 for(i =0; i <nColCount; i++) TextOut(pd.hDC, ca[i].nPrintX, nYMargin, ca[i].strColText, strlen(ca[i].strColText)); int nMaxLinePerPage = nVerRes/nCharHeight -3; int nCurPage =1; //輸出各列的數(shù)據(jù) for(i =0; i <nLineCount; i++) { for(int j =0; j <nColCount; j++) { if(i+1-(nCurPage-1)*nMaxLinePerPage > nMaxLinePerPage) { //新的一頁 EndPage(pd.hDC); StartPage(pd.hDC); nCurPage ++; } CString subitem = list.GetItemText(i, ca[j].nSubItemIndex); TextOut(pd.hDC, ca[j].nPrintX, nYMargin+(i+1-(nCurPage-1)*nMaxLinePerPage)*nCharHeight, subitem, strlen(subitem)); } } EndPage(pd.hDC); EndDoc(pd.hDC); //打印結(jié)束 DeleteDC(pd.hDC); return TRUE; } |
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