Windows Dev Center

TBM_GETCHANNELRECT message

Retrieves the size and position of the bounding rectangle for a trackbar's channel. (The channel is the area over which the slider moves. It contains the highlight when a range is selected.)

Parameters

wParam
Must be zero.
lParam

Pointer to a RECT structure. The message fills this structure with the channel's bounding rectangle, in client coordinates of the trackbar's window.

Return value

No return value.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Commctrl.h

 

 

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