short Escape(hdc, GETCOLORTABLE, sizeof(int),lpIndex,lpColor)
The GETCOLORTABLE printer escape retrieves an RGB color-table entry and copies it to the location specified by the lpColor parameter.
hdc
HDC Identifies the device context.
lpIndex
LPINT Points to a short integer that specifies the index of a color-table entry. Color-table indexes start at zero for the first table entry.
lpColor
LPDWORD Points to the long integer that will receive the RGB color value for the given entry.
The return value specifies the outcome of the escape. This value is positive if the escape is successful. Otherwise, it is negative.