The PBM_SETSTEP message 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.
PBM_SETSTEP
wParam = (WPARAM) nStepInc;
lParam = 0;
Parameters
nStepInc
New step increment.
Return Values
Returns the previous step increment.
See Also