| int GetScrollPos(hwnd, fnBar) | |||||
| HWND hwnd; | /* handle of window with scroll bar | */ | |||
| int fnBar; | /* scroll bar flags | */ | |||
The GetScrollPos function retrieves the current position of the scroll box (thumb) of the given scroll bar. The current position is a relative value that depends on the current scrolling range. For example, if the scrolling range is 0 through 100 and the scroll box is in the middle of the bar, the current position is 50.
hwnd
Identifies a scroll bar control or a window with a standard scroll bar, depending on the value of the fnBar parameter.
fnBar
Specifies the scroll bar to be examined. This parameter can be one of the following values:
| Value | Meaning |
| SB_CTL | Retrieves the position of the scroll box in a scroll bar control. In this case, the hwnd parameter must be the handle of a scroll bar control. |
| SB_HORZ | Retrieves the position of the scroll box in a window's standard horizontal scroll bar. |
| SB_VERT | Retrieves the position of the scroll box in a window's standard vertical scroll bar. |
The return value specifies the current position of the scroll box if the function is successful, or zero if an error occurs. To obtain extended error information, use the GetLastError function.
GetScrollRange, ScrollDC, ScrollWindow, SetScrollPos, SetScrollRange