Using Win32 functions in Visual FoxPro Image Gallery
Monitor Configuration (Vista)
Code examples:
How to adjust monitor brightness (Vista, monitor with DDC support)
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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)
BOOL GetMonitorCapabilities(
  HANDLE  hMonitor,
  LPDWORD  pdwMonitorCapabilities,
  LPDWORD  pdwSupportedColorTemperatures
FoxPro declaration:
DECLARE INTEGER GetMonitorCapabilities IN dxva2;
    INTEGER hMonitor,;
    LONG @pdwMonitorCapabilities,;
    LONG @pdwSupportedColorTemperatures
[in] Handle to a physical monitor. To get the monitor handle, call GetPhysicalMonitorsFromHMONITOR or GetPhysicalMonitorsFromIDirect3DDevice9.

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

[out] Receives a bitwise OR of color temperature flags. See Remarks.
Return value:
If the function succeeds, the return value is nonzero.
STORE 0 TO nCapFlags, nColorTempFlags

= GetMonitorCapabilities(hPhysMonitor,;
    @nCapFlags, @nColorTempFlags)

? nCapFlags, nColorTempFlags
My comment:
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.
Word Index links for the GetMonitorCapabilities :
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Created: 2008-12-10 15:45:32
Modified: 2008-12-10 16:09:07
Visited in last 7 days: 32
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