Hi Gary,

I have several code samples (members area):

Configuring DEVMODE structure for a printer
http://www.news2news.com/vfp/?example=384&function=591
This particular example operates with results obtained from DocumentProperties function.

Opening a Page Setup dialog box to specify the attributes of a printed page
http://www.news2news.com/vfp/?example=272

How to change display settings: screen resolution, screen refresh rate
http://www.news2news.com/vfp/?example=374

* * *
Here is the structure with offsets to each member

*|typedef struct _devicemode { 
*|  BCHAR  dmDeviceName[CCHDEVICENAME];   0:32
*|  WORD   dmSpecVersion;                32:2
*|  WORD   dmDriverVersion;              34:2
*|  WORD   dmSize;                       36:2
*|  WORD   dmDriverExtra;                38:2
*|  DWORD  dmFields;                     40:4
*|  union {
*|    struct {
*|      short dmOrientation;             44:2
*|      short dmPaperSize;               46:2
*|      short dmPaperLength;             48:2
*|      short dmPaperWidth;              50:2
*|      short dmScale;                   52:2
*|      short dmCopies;                  54:2
*|      short dmDefaultSource;           56:2
*|      short dmPrintQuality;            58:2
*|    };
*|    POINTL dmPosition;                 44:8
*|    DWORD  dmDisplayOrientation;       44:4
*|    DWORD  dmDisplayFixedOutput;       44:4
*|  };
*|  short  dmColor;                      60:2
*|  short  dmDuplex;                     62:2
*|  short  dmYResolution;                64:2
*|  short  dmTTOption;                   66:2
*|  short  dmCollate;                    68:2
*|  BYTE  dmFormName[CCHFORMNAME];       70:32
*|  WORD  dmLogPixels;                  102:2
*|  DWORD  dmBitsPerPel;                104:4
*|  DWORD  dmPelsWidth;                 108:4
*|  DWORD  dmPelsHeight;                112:4
*|  union {
*|    DWORD  dmDisplayFlags;            116:4
*|    DWORD  dmNup;                     116:4
*|  }
*|  DWORD  dmDisplayFrequency;          120:4
*|#if(WINVER >= 0x0400) 
*|  DWORD  dmICMMethod;                 124:4
*|  DWORD  dmICMIntent;                 128:4
*|  DWORD  dmMediaType;                 132:4
*|  DWORD  dmDitherType;                136:4
*|  DWORD  dmReserved1;                 140:4
*|  DWORD  dmReserved2;                 144:4
*|#if (WINVER >= 0x0500) || (_WIN32_WINNT >= 0x0400)
*|  DWORD  dmPanningWidth;              148:4
*|  DWORD  dmPanningHeight;             152:4
*|#endif
*|#endif /* WINVER >= 0x0400 */
*|} DEVMODE;

If DocumentProperties is declared in this way:

DECLARE INTEGER DocumentProperties IN winspool.drv;
	INTEGER hWnd, INTEGER hPrinter, STRING pDeviceName,;
	STRING @pDevModeOutput, STRING @pDevModeInput, INTEGER fMode

the modified device mode is returned in a string buffer. Knowing WORD and DWORD byte ordering it is possible to retrieve all parameters.