GetMonitorInfoA function

The GetMonitorInfo function retrieves information about a display monitor.


BOOL GetMonitorInfoA(
  HMONITOR      hMonitor,



A handle to the display monitor of interest.


A pointer to a MONITORINFO or MONITORINFOEX structure that receives information about the specified display monitor.

You must set the cbSize member of the structure to sizeof(MONITORINFO) or sizeof(MONITORINFOEX) before calling the GetMonitorInfo function. Doing so lets the function determine the type of structure you are passing to it.

The MONITORINFOEX structure is a superset of the MONITORINFO structure. It has one additional member: a string that contains a name for the display monitor. Most applications have no use for a display monitor name, and so can save some bytes by using a MONITORINFO structure.

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.


Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header winuser.h (include Windows.h)
Library User32.lib
DLL User32.dll

See also



Multiple Display Monitors Functions

Multiple Display Monitors Overview