TBM_GETTHUMBLENGTH message

Retrieves the length of the slider in a trackbar.

Parameters

wParam

Must be zero.

lParam

Must be zero.

Return value

Returns the length, in pixels, of the slider.

Requirements

Requirement Value
Minimum supported client
Windows Vista [desktop apps only]
Minimum supported server
Windows Server 2003 [desktop apps only]
Header
Commctrl.h

See also

Reference

TBM_GETTHUMBRECT

TBM_SETTHUMBLENGTH