CWinApp::WriteProfileBinary
Call this member function to write binary data into the specified section of the application's registry or .INI file.
BOOL WriteProfileBinary(
LPCTSTR lpszSection,
LPCTSTR lpszEntry,
LPBYTE pData,
UINT nBytes
);
Parameters
lpszSection
Points to a null-terminated string that specifies the section containing the entry. If the section does not exist, it is created. The name of the section is case independent; the string may be any combination of uppercase and lowercase letters.lpszEntry
Points to a null-terminated string that contains the entry into which the value is to be written. If the entry does not exist in the specified section, it is created.pData
Points to the data to be written.nBytes
Contains the number of bytes to be written.
Return Value
Nonzero if successful; otherwise 0.
Example
This example uses CWinApp* pApp = AfxGetApp(); to get at the CWinApp class illustrating a way that WriteProfileBinary and GetProfileBinary can be used from any function in an MFC application.
CWinApp* pApp = AfxGetApp();
CString strSection = _T("My Section");
CString strItem = _T("My Binary Item");
double myData = 123.456e12;
pApp->WriteProfileBinary(strSection, strItem, (LPBYTE)&myData, sizeof(myData));
double *pData;
UINT n;
pApp->GetProfileBinary(strSection, strItem, (LPBYTE*)&pData, &n);
ASSERT(n == sizeof(myData));
ASSERT(myData = *pData);
delete [] pData; // free the buffer
For another example, see the example for CWinApp::GetProfileBinary.
Smart Device Developer Notes
Only the registry-based version using CWinApp::SetRegistryKey is supported in Windows CE-based projects.
Requirements
Header: afxwin.h