Skip to content

Latest commit

 

History

History
67 lines (44 loc) · 2.04 KB

GetMonitorCapabilities.md

File metadata and controls

67 lines (44 loc) · 2.04 KB

Home

Function name : GetMonitorCapabilities

Group: Monitor Configuration (Vista) - Library: dxva2

Retrieves the configuration capabilities of a monitor. Call this function to find out which high-level monitor configuration functions are supported by the monitor.

Code examples:

How to adjust monitor brightness (Vista, monitor with DDC support)

Declaration:

BOOL GetMonitorCapabilities(
  HANDLE  hMonitor,
  LPDWORD  pdwMonitorCapabilities,
  LPDWORD  pdwSupportedColorTemperatures
);

FoxPro declaration:

DECLARE INTEGER GetMonitorCapabilities IN dxva2;
	INTEGER hMonitor,;
	LONG @pdwMonitorCapabilities,;
	LONG @pdwSupportedColorTemperatures

Parameters:

hMonitor [in] Handle to a physical monitor. To get the monitor handle, call GetPhysicalMonitorsFromHMONITOR or GetPhysicalMonitorsFromIDirect3DDevice9.

pdwMonitorCapabilities [out] Receives a bitwise OR of capabilities flags. See Remarks.

pdwSupportedColorTemperatures [out] Receives a bitwise OR of color temperature flags. See Remarks.

Return value:

If the function succeeds, the return value is nonzero.

Comments:

The GetMonitorCapabilities function fails if the monitor does not support the Display Data Channel (DDC/CI).

That is what the function returns for SyncMaster T240:

The capabilities flags value is 7199 (1110000011111).

There are currently 13 capabilities flags defining which high-level configuration function is supported by this monitor including GETs and/or SETs for brightness, color temperature, contrast, display area position & size, factory defaults and more.

The color temperature flags value is 129 (10000001), which indicates support for 4000K and 11500K color temperatures.