Sets the interval frequency for tick marks in a trackbar. For example, if the frequency is set to two, a tick mark is displayed for every other increment in the trackbar's range. The default setting for the frequency is one; that is, every increment in the range is associated with a tick mark.
Frequency of the tick marks.
- Must be zero.
No return value.
The trackbar must have the TBS_AUTOTICKS style to use this message.
Minimum supported client
|Windows Vista [desktop apps only]|
Minimum supported server
|Windows Server 2003 [desktop apps only]|