CTrackbar.GetTicPosmethod
Retrieves the length of the slider in a trackbar.
Syntax
FUNCTION GetTicPos (BYVAL hTrackbar AS HWND, BYVAL iTic AS DWORD) AS LONGParameters
| Name | Description | |
|---|---|---|
hTrackbar | Handle to the trackbar control. | |
iTic | Zero-based index identifying a tick mark. The positions of the first and last tick marks are not directly available via this message. |
Return value
Returns the distance, in client coordinates, from the left or top of the trackbar's client area to the specified tick mark. The return value is the x-coordinate of the tick mark for a horizontal trackbar or the y-coordinate for a vertical trackbar. If iTic is not a valid index, the return value is -1.
Remarks Because the first and last tick marks are not available through this message, valid indexes are offset from their tick position on the trackbar. If the difference between TBM_GETRANGEMIN and TBM_GETRANGEMAX is less than two, then there is no valid index and this message will fail.
The following illustrates the relation between the ticks on a trackbar, the ticks available through this message, and their zero-based indexes.
Description
Retrieves the current physical position of a tick mark in a trackbar.
Example
0 1 2 3 4 5 6 7 8 9 // Tick positions seen on the trackbar. 1 2 3 4 5 6 7 8 // Tick positions whose position can be identified. 0 1 2 3 4 5 6 7 // Index numbers for the identifiable positions.
Reference
- Include file
CTrackbar.inc - Defined in AfxNova/CTrackbar.inc:270
- Documented in Windows/WIndows Controls/CTrackbar Class.md
- Topic: CTrackbar Class