EasyXLS Excel library can be used to export Excel files in C++. The integration varies depending on the project technique, if .NET Framework can be used or not.
If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.
If you own a license key, you may login to the account that purchased the license and generate the license file from: https://www.easyxls.com/my-orders
Setup the license file into your project using these guidelines.
Step 4: Run C++ code that protects Excel sheet
Execute the following C++ code that exports data to Excel, protects Excel sheet and locks cells.
/* --------------------------------------------------------------
* Tutorial 06
*
* This code sample shows how to create an Excel file in C++ with
* multiple sheets. The first sheet is protected and
* filled with data. The cells are formatted and locked.
* ----------------------------------------------------------- */#include"EasyXLS.h"#include<conio.h>int main()
{
printf("Tutorial 06\n----------\n");
HRESULT hr;
// Initialize COM
hr = CoInitialize(0);
// Use the SUCCEEDED macro and get a pointer to the interfaceif (SUCCEEDED(hr))
{
// Create a pointer to the interface that creates Excel files
EasyXLS::IExcelDocumentPtr workbook;
hr = CoCreateInstance(__uuidof(EasyXLS::ExcelDocument),
NULL,
CLSCTX_ALL,
__uuidof(EasyXLS::IExcelDocument),
(void**) &workbook);
if (SUCCEEDED(hr)){
// Create two worksheets
workbook->easy_addWorksheet_2("First tab");
workbook->easy_addWorksheet_2("Second tab");
// Protect first sheet
workbook->easy_getSheetAt(0)->setSheetProtected(true);
// Get the table of data for the first worksheet
EasyXLS::IExcelWorksheetPtr xlsFirstTab = (EasyXLS::IExcelWorksheetPtr)workbook->easy_getSheetAt(0);
EasyXLS::IExcelTablePtr xlsFirstTable = xlsFirstTab->easy_getExcelTable();
// Create the formatting style for the header
EasyXLS::IExcelStylePtr xlsStyleHeader;
hr = CoCreateInstance(__uuidof(EasyXLS::ExcelStyle),
NULL,
CLSCTX_ALL,
__uuidof(EasyXLS::IExcelStyle),
(void**) &xlsStyleHeader);
xlsStyleHeader->setFont("Verdana");
xlsStyleHeader->setFontSize(8);
xlsStyleHeader->setItalic(true);
xlsStyleHeader->setBold(true);
xlsStyleHeader->setForeground(COLOR_YELLOW);
xlsStyleHeader->setBackground(COLOR_BLACK);
xlsStyleHeader->setBorderColors (COLOR_GRAY, COLOR_GRAY, COLOR_GRAY, COLOR_GRAY);
xlsStyleHeader->setBorderStyles (BORDER_BORDER_MEDIUM, BORDER_BORDER_MEDIUM,
BORDER_BORDER_MEDIUM, BORDER_BORDER_MEDIUM);
xlsStyleHeader->setHorizontalAlignment(ALIGNMENT_ALIGNMENT_CENTER);
xlsStyleHeader->setVerticalAlignment(ALIGNMENT_ALIGNMENT_BOTTOM);
xlsStyleHeader->setWrap(true);
xlsStyleHeader->setDataType(DATATYPE_STRING);
// Add data in cells for report headerchar* cellValue = (char*)malloc(11*sizeof(char));
char* columnNumber = (char*)malloc(sizeof(char));
for (int column=0; column<5; column++)
{
strcpy_s(cellValue, 8, "Column ");
_itoa_s(column+ 1, columnNumber, 2, 10);
strcat_s(cellValue, 10, columnNumber);
xlsFirstTable->easy_getCell(0,column)->setValue(cellValue);
xlsFirstTable->easy_getCell(0,column)->setStyle(xlsStyleHeader);
}
xlsFirstTable->easy_getRowAt(0)->setHeight(30);
// Create a formatting style for cells
EasyXLS::IExcelStylePtr xlsStyleData;
hr = CoCreateInstance(__uuidof(EasyXLS::ExcelStyle),
NULL,
CLSCTX_ALL,
__uuidof(EasyXLS::IExcelStyle),
(void**) &xlsStyleData) ;
xlsStyleData->setHorizontalAlignment(ALIGNMENT_ALIGNMENT_LEFT);
xlsStyleData->setForeground(COLOR_DARKGRAY);
xlsStyleData->setWrap(false);
// Protect cells
xlsStyleData->setLocked(true);
xlsStyleData->setDataType(DATATYPE_STRING);
// Add data in cells for report valueschar* rowNumber = (char*)malloc(sizeof(char));
for (int row=0; row<100; row++)
{
for (int column=0; column<5; column++)
{
strcpy_s(cellValue, 6, "Data ");
_itoa_s(column+ 1, columnNumber, 2, 10);
_itoa_s(row + 1, rowNumber, 4, 10);
strcat_s(cellValue, 10, rowNumber);
strcat_s(cellValue, 12, ", ");
strcat_s(cellValue, 13, columnNumber);
xlsFirstTable->easy_getCell(row+1,column)->setValue(cellValue);
xlsFirstTable->easy_getCell(row+1,column)->setStyle(xlsStyleData);
}
}
// Set column widths
xlsFirstTable->setColumnWidth_2(0, 70);
xlsFirstTable->setColumnWidth_2(1, 100);
xlsFirstTable->setColumnWidth_2(2, 70);
xlsFirstTable->setColumnWidth_2(3, 100);
xlsFirstTable->setColumnWidth_2(4, 70);
// Create Excel file
printf("Writing file C:\\Samples\\Tutorial06 - protect Excel sheet.xlsx.");
workbook->easy_WriteXLSXFile("C:\\Samples\\Tutorial06 - protect Excel sheet.xlsx");
// Confirm the creation of Excel file
_bstr_t sError = workbook->easy_getError();
if (strcmp(sError, "") == 0){
printf("\nFile successfully created. Press Enter to Exit...");
}
else{
printf("\nError encountered: %s", (LPCSTR)sError);
}
// Dispose memory
workbook->Dispose();
}
else{
printf("Object is not available!");
}
}
else{
printf("COM can't be initialized!");
}
// Uninitialize COM
CoUninitialize();
_getch();
return 0;
}
C++ and .NET Framework This tutorial is valid for C++ applications that cannot use .NET Framework. It is recommended, for better performances, that if the C++ application already uses or can use .NET Framework to make use of this similar code sample.
Overloaded methods For methods with same name but different parameters, only the first method overload retains the original name. Subsequent overloads are uniquely renamed by appending to the method name '_2', '_3', etc (method, method_2, method_3), an integer that corresponds to the order of declaration that can be found in EasyXLS.h, a file that comes with EasyXLS installation.
EasyXLS in C++.NET projects using .NET Framework
If you opt for the .NET Framework version of EasyXLS, you need a C++.NET project and to include EasyXLS.dll into project.
To download the trial version of EasyXLS Excel Library, press the below button:
If you already own a license key, you may login and download EasyXLS from your account.
Install the downloaded EasyXLS installer for v8.6 or earlier.
Step 2: License file setup
Step required for EasyXLS v9.0 or later.
If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.
If you own a license key, you may login to the account that purchased the license and generate the license file from: https://www.easyxls.com/my-orders
Setup the license file into your project using these guidelines.
Step 3: Include EasyXLS library into project
EasyXLS.dll must be added to your project. EasyXLS.dll can be found: - Inside the downloaded archive at Step 1 for EasyXLS v9.0 or later - Under installation path for EasyXLS v8.6 or earlier, in "Dot NET version" folder.
Step 4: Run C++ code that protects Excel sheet
Execute the following C++ code that exports data to Excel, protects Excel sheet and locks cells.
