Verifying the System Version
[ Use of the VerifyVersionInfo function to verify the currently running operating system is not recommended. Instead, use the Version Helper APIs]
This contains examples that use the VerifyVersionInfo function to determine whether the application is running on a specific operating system.
The main steps in each example are as follows:
- Set the appropriate values in the OSVERSIONINFOEX structure.
- Set the appropriate condition mask using the VER_SET_CONDITION macro.
- Call VerifyVersionInfo to perform the test.
Example 1
The following example determines whether the application is running on Windows XP with Service Pack 2 (SP2) or a later version of Windows, such as Windows Server 2003 or Windows Vista.
#include <windows.h>
#include <stdio.h>
BOOL Is_WinXP_SP2_or_Later ()
{
OSVERSIONINFOEX osvi;
DWORDLONG dwlConditionMask = 0;
int op=VER_GREATER_EQUAL;
// Initialize the OSVERSIONINFOEX structure.
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
osvi.dwMajorVersion = 5;
osvi.dwMinorVersion = 1;
osvi.wServicePackMajor = 2;
osvi.wServicePackMinor = 0;
// Initialize the condition mask.
VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
// Perform the test.
return VerifyVersionInfo(
&osvi,
VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
dwlConditionMask);
}
void main()
{
if(Is_WinXP_SP2_or_Later())
printf("The system meets the requirements.\n");
else printf("The system does not meet the requirements.\n");
}
Example 2
The following code verifies that the application is running on Windows 2000 Server or a later server, such as Windows Server 2003 or Windows Server 2008.
#include <windows.h>
#include <stdio.h>
BOOL Is_Win_Server()
{
OSVERSIONINFOEX osvi;
DWORDLONG dwlConditionMask = 0;
int op=VER_GREATER_EQUAL;
// Initialize the OSVERSIONINFOEX structure.
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
osvi.dwMajorVersion = 5;
osvi.dwMinorVersion = 0;
osvi.wServicePackMajor = 0;
osvi.wServicePackMinor = 0;
osvi.wProductType = VER_NT_SERVER;
// Initialize the condition mask.
VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
VER_SET_CONDITION( dwlConditionMask, VER_PRODUCT_TYPE, VER_EQUAL );
// Perform the test.
return VerifyVersionInfo(
&osvi,
VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR |
VER_PRODUCT_TYPE,
dwlConditionMask);
}
void main()
{
if(Is_Win_Server())
printf("The system meets the requirements.\n");
else printf("The system does not meet the requirements.\n");
}