IPXC_CState::Flags

[MiBa]

Hallo everybody,

I want to enumerate all used colors on a page.

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public IEnumerable<ColorStateDto> GetColorStatesFromDocument() {
    for (uint pageIndex = 0; pageIndex < _pdfEditControl.Doc.CoreDoc.Pages.Count; pageIndex++) {
        var pageContent = _pdfEditControl.Doc.CoreDoc.Pages[pageIndex].GetContent(PXC_ContentAccessMode.CAccessMode_Readonly);
        for (uint cStateIndex = 0; cStateIndex < pageContent.CStatesCount; cStateIndex++) {
            var cstate = pageContent.GetCStateByIndex(cStateIndex);
            float c, m, y, k;
            float r, g, b;

            var cstateColor = cstate.FillColor[ColorType.ColorType_CMYK];      // <=== Exception
            cstateColor.GetCMYK(out c, out m, out y, out k);
            Color rgb = ColorTranslator.FromOle((int) cstate.FillColor.ValueRGB);
            var jjkColorState = new ColorStateDto()
            {
                Id = cStateIndex,
                PageNr = pageIndex,
                Typ = cstate.FillColor.CSType,
                IsUsed= CStateIsUsedOnPage(pageIndex, cstate),
                C = c,
                M = m,
                Y = y,
                K = k,
                Rgb = new ColorRgb{ R = rgb.R, G = rgb.G, B=rgb.B}
            };
            yield return jjkColorState;
        }
    }
}


private bool CStateIsUsedOnPage(uint pageIndex, IPXC_CState cstate) {
    var pagecontent = _pdfEditControl.Doc.CoreDoc.Pages[pageIndex].GetContent(PXC_ContentAccessMode.CAccessMode_Readonly);
    for (uint i = 0; i < pagecontent.Items.Count; i++) {
        var contentItem = pagecontent.Items[i];
        if (contentItem.GetCState().FillColor.CSHandle == cstate.FillColor.CSHandle) {
            return true;
        }
    }
    return false;
}

Unfortunately sometimes I get an Exception in the marked line. I think it has something to do with the flags of the cstate. I observed flags like 0x01000001, 0x01000003 and 0x01000007.

Does anybody know the meaning of these flags? I couldn't find anything in the wiki.

Thanks
MiBa

[Sasha - PDF-XChange]

Hello MiBa,

You problem with the exception is because you use that property incorrectly.
The correct code is:

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PDFXEdit.IPXC_Color color = state.FillColor;

Because you were using

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var color = state.FillColor[PDFXEdit.ColorType.ColorType_CMYK];

The C# somehow reinterpreted this code into

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PDFXEdit.IColor color = state.FillColor[PDFXEdit.ColorType.ColorType_CMYK];

Thus you didn't know that you've made a mistake and the exceptions occurred.
So if you are using 'var' inside your code please double check whether the types and methods are used correctly so situations like these won't occur.

PS: I've updated the flags description here:
https://sdkhelp.pdf-xchange.com/vie ... tate_Flags

Cheers,
Alex