static LRESULT CALLBACK SubclassButtonProc	(	HWND	hWnd,
		WPARAM	wp,
		LPARAM	lp
	)		`[static]`
Definition at line 1169 of file winmain.c.
Referenced by DlgMainProc().
{
    LPDRAWITEMSTRUCT dis = (LPDRAWITEMSTRUCT)lp;
    DWORD            dwStyle;
    UINT             dwText;
    TCHAR            text[64];
    int              dx, dy, len;
    SIZE             size;
    POINT            pt;

    if(dis->CtlType == ODT_BUTTON) {
        /*
         * little exception: 1/x has different color
         * in standard and scientific modes
         */
        if ((calc.layout == CALC_LAYOUT_STANDARD ||
             calc.layout == CALC_LAYOUT_CONVERSION) &&
            IDC_BUTTON_RX == dis->CtlID) {
            SetTextColor(dis->hDC, CALC_CLR_BLUE);
        } else
        for (dx=0; dx<SIZEOF(key2code); dx++) {
            if (key2code[dx].idc == dis->CtlID) {
                SetTextColor(dis->hDC, key2code[dx].col);
                break;
            }
        }
        /* button text to write */
        len = GetWindowText(dis->hwndItem, text, SIZEOF(text));
        /* default state: unpushed & enabled */
        dwStyle = 0;
        dwText = 0;
        if ((dis->itemState & ODS_DISABLED))
            dwText = DSS_DISABLED;
        if ((dis->itemState & ODS_SELECTED))
            dwStyle = DFCS_PUSHED;

        DrawFrameControl(dis->hDC, &dis->rcItem, DFC_BUTTON, DFCS_BUTTONPUSH | dwStyle);
        GetTextExtentPoint32(dis->hDC, text, len, &size);
        dx = ((dis->rcItem.right-dis->rcItem.left) - size.cx) >> 1;
        dy = ((dis->rcItem.bottom-dis->rcItem.top) - size.cy) >> 1;
        if ((dwStyle & DFCS_PUSHED)) {
            dx++;
            dy++;
        }
        pt.x = dis->rcItem.left + dx;
        pt.y = dis->rcItem.top + dy;
        DrawState(dis->hDC, NULL, NULL, (LPARAM)text, 0, pt.x, pt.y, size.cx, size.cy, DST_TEXT | dwText);
    }
    return 1L;
}
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