PBM_SETSTEPPBM_SETSTEP*
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PBM_SETSTEP


PBM_SETSTEP 
    wParam = (WPARAM) nStepInc; 
    lParam = 0;

Specifies the step increment for a progress bar. The step increment is the amount by which the progress bar increases its current position whenever it receives a PBM_STEPIT message. By default, the step increment is set to 10.

nStepInc
New step increment.

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