DLL
To customize the gray area
- If you want to specify that the gray area display the exact horizontal and vertical gray area margins, call the SpvSetGrayAreaMarginType function and set the value parameter to 1 (SPV_MARGINTYPE_ACTUAL).
- Call the SpvSetGrayAreaColor function to specify the color of the gray area.
- Call the SpvSetGrayAreaMarginH and SpvSetGrayAreaMarginV functions to specify the horizontal and vertical margins.