TBM_GETTHUMBLENGTHTBM_GETTHUMBLENGTH*
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TBM_GETTHUMBLENGTH


TBM_GETTHUMBLENGTH 
    wParam = 0; 
    lParam = 0; 

Retrieves the length of the slider in a trackbar.

See also TBM_GETTHUMBRECT, TBM_SETTHUMBLENGTH


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