MCIWNDM_VALIDATEMEDIA message

The MCIWNDM_VALIDATEMEDIA message updates the starting and ending locations of the content, the current position in the content, and the trackbar according to the current time format. You can send this message explicitly or by using the MCIWndValidateMedia macro.

MCIWNDM_VALIDATEMEDIA 
wParam = 0; 
lParam = 0; 

Return Value

This message does not return a value.

Remarks

Typically, you should not need to use this macro; however, if your application changes the time format of a device without using MCIWnd; the starting and ending locations of the content, as well as the trackbar, continue to use the old format. You can use this macro to update these values.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Vfw.h

See also

MCIWndValidateMedia