Method ControlSetProgressOptions

source/script_gui.cpp:9802–9823

void GuiType::ControlSetProgressOptions(GuiControlType &aControl, GuiControlOptionsType &aOpt, DWORD aStyle)
// Caller has ensured that aControl.type is Progress.
// Caller has ensured that aOpt.color_bk is CLR_INVALID if no change should be made to the
// bar's current background color.
{
	// If any options are present that cannot be manifest while a visual theme is in effect, ensure any
	// such theme is removed from the control (currently, once removed it is never put back on):
	// Override the default so that colors/smooth can be manifest even when non-classic theme is in effect.
	if (   IS_AN_ACTUAL_COLOR(aOpt.color)
		|| IS_AN_ACTUAL_COLOR(aOpt.color_bk)
		|| (aStyle & PBS_SMOOTH))
		SetWindowTheme(aControl.hwnd, L"", L""); // Remove theme if options call for something theme can't show.

	if (aOpt.range_min || aOpt.range_max) // Must check like this because although it valid for one to be zero, both should not be.
		SendMessage(aControl.hwnd, PBM_SETRANGE32, aOpt.range_min, aOpt.range_max);

	if (aOpt.color != CLR_INVALID) // Explicit color change was requested.
		SendMessage(aControl.hwnd, PBM_SETBARCOLOR, 0, aOpt.color);

	if (aOpt.color_bk != CLR_INVALID) // Explicit color change was requested.
		SendMessage(aControl.hwnd, PBM_SETBKCOLOR, 0, aOpt.color_bk);
}