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