|
Overview |
|
|
|
Group |
|
|
|
Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| kernel32.lib
| Header File
| winbase.h
| Unicode
| No
| Platform Notes
| None
|
|
|
QueryPerformanceFrequency
The QueryPerformanceFrequency function retrieves the frequency of the high-resolution performance counter,
if one exists.
BOOL QueryPerformanceFrequency(
LARGE_INTEGER *lpFrequency
| // address of current frequency
| );
|
|
Parameters
lpFrequency
Points to a variable that the function sets, in counts per second, to the
current performance-counter frequency. If the installed hardware does not support a
high-resolution performance counter, this parameter can be to zero.
Return Values
If the installed hardware supports a high-resolution performance counter, the
return value is nonzero.
If the installed hardware does not support a high-resolution performance
counter, the return value is zero.
See Also
QueryPerformanceCounter
Related Links
Software for Delphi and C++ Builder developers
Software for Visual Studio .NET developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET
TMS Scripter Studio Pro components for Delphi/C++Builder
More Online Helps
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
|
