| void GetScrollRange(hwnd, fnBar, lpnMinPos, lpnMaxPos) | |||||
| HWND hwnd; | /* handle of window with scroll bar | */ | |||
| int fnBar; | /* scroll bar flags, */ | ||||
| int FAR* lpnMinPos; | /* receives minimum position | */ | |||
| int FAR* lpnMaxPos; | /* receives maximum position | */ | |||
The GetScrollRange function retrieves the current minimum and maximum scroll bar positions for the given scroll bar.
hwnd
Identifies a window that has standard scroll bars or a scroll bar control, depending on the value of the fnBar parameter.
fnBar
Specifies which scroll bar to retrieve. This parameter can be one of the following values:
| Value | Meaning |
| SB_CTL | Retrieves the position of 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 a window's horizontal scroll bar. |
| SB_VERT | Retrieves the position of a window's vertical scroll bar. |
lpnMinPos
Points to the integer variable that receives the minimum position.
lpnMaxPos
Points to the integer variable that receives the maximum position.
This function does not return a value.
If the given window does not have standard scroll bars or is not a scroll bar control, the GetScrollRange function copies zero to the lpnMinPos and lpnMaxPos parameters.
The default range for a standard scroll bar is 0 through 100. The default range for a scroll bar control is empty (both values are zero).