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Generating embedded charts via Qt ActiveX

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  • A Offline
    A Offline
    alizadeh91
    wrote on last edited by
    #5

    I'm just looking for some hints since I'm quite new in this area. The link you have sent is not english!!!

    mrjjM 1 Reply Last reply
    0
    • m.sueM Offline
      m.sueM Offline
      m.sue
      wrote on last edited by
      #6

      Now it is :-)

      1 Reply Last reply
      0
      • A Offline
        A Offline
        alizadeh91
        wrote on last edited by
        #7

        That didn't help. I'm little confused.What are those APIs in the code I've posted? I'll be really appreciated if anybody help

        1 Reply Last reply
        0
        • A alizadeh91

          I'm just looking for some hints since I'm quite new in this area. The link you have sent is not english!!!

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #8

          @alizadeh91

          What is the difference between the chart object you get with this code and the
          one you refer to as embedded?
          It seems the same
          as
          http://peltiertech.com/Excel/ChartsHowTo/QuickChartVBA.html

          You add chart
          AxObject *chart = workbook->querySubObject("Charts")->querySubObject("Add");
          You set type
          chart->setProperty("Chart Type", 73);

          The API is for the programming of Excel. Its Automation API.

          A 1 Reply Last reply
          2
          • mrjjM mrjj

            @alizadeh91

            What is the difference between the chart object you get with this code and the
            one you refer to as embedded?
            It seems the same
            as
            http://peltiertech.com/Excel/ChartsHowTo/QuickChartVBA.html

            You add chart
            AxObject *chart = workbook->querySubObject("Charts")->querySubObject("Add");
            You set type
            chart->setProperty("Chart Type", 73);

            The API is for the programming of Excel. Its Automation API.

            A Offline
            A Offline
            alizadeh91
            wrote on last edited by
            #9

            @mrjj Thanks, The chart that is created is a 'worksheet chart' which is a worksheet which is dedicated to a fullscreen chart. I want to create a embedded chart in a ordinary worksheet.

            mrjjM 1 Reply Last reply
            0
            • A alizadeh91

              @mrjj Thanks, The chart that is created is a 'worksheet chart' which is a worksheet which is dedicated to a fullscreen chart. I want to create a embedded chart in a ordinary worksheet.

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #10

              @alizadeh91
              Hmm
              I think it comes from the fact we create it
              QAxObject *chart = workbook->querySubObject("Charts")->querySubObject("Add");
              on the workbook

              I wonder if we can ask worksheet->querySubObject("Charts")xxx
              so its added to the collection of the sheet.
              Or
              "ActiveSheet"-->querySubObject("Charts")

              If you see here
              https://msdn.microsoft.com/en-us/library/office/ff194426.aspx

              So I think its about what collection you put it in.

              A 1 Reply Last reply
              2
              • mrjjM mrjj

                @alizadeh91
                Hmm
                I think it comes from the fact we create it
                QAxObject *chart = workbook->querySubObject("Charts")->querySubObject("Add");
                on the workbook

                I wonder if we can ask worksheet->querySubObject("Charts")xxx
                so its added to the collection of the sheet.
                Or
                "ActiveSheet"-->querySubObject("Charts")

                If you see here
                https://msdn.microsoft.com/en-us/library/office/ff194426.aspx

                So I think its about what collection you put it in.

                A Offline
                A Offline
                alizadeh91
                wrote on last edited by
                #11

                @mrjj Thanks again, But I have question in my mind and there are some gaps in my understandings. What is the differences between VBA sample codes in your link and the Activex codes ? How should I convert them to c++? Should I just follow the patterns and guess them?!

                mrjjM 1 Reply Last reply
                0
                • A alizadeh91

                  @mrjj Thanks again, But I have question in my mind and there are some gaps in my understandings. What is the differences between VBA sample codes in your link and the Activex codes ? How should I convert them to c++? Should I just follow the patterns and guess them?!

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  @alizadeh91
                  They are using the same model. The syntax is just different. With Qt you are running it via
                  a Automation server which VBA also does but its just more natural looking.

                  So even syntax not the same, the object its uses and often also actual structure is the same.

                  So if you know how to get a embedded chart in VBA, the same will work for Qt.

                  Therefore an understanding of the model (of Excel) is needed to use the Qt code.

                  A 1 Reply Last reply
                  1
                  • mrjjM mrjj

                    @alizadeh91
                    They are using the same model. The syntax is just different. With Qt you are running it via
                    a Automation server which VBA also does but its just more natural looking.

                    So even syntax not the same, the object its uses and often also actual structure is the same.

                    So if you know how to get a embedded chart in VBA, the same will work for Qt.

                    Therefore an understanding of the model (of Excel) is needed to use the Qt code.

                    A Offline
                    A Offline
                    alizadeh91
                    wrote on last edited by alizadeh91
                    #13

                    @mrjj Thanks, Could u give me an example (some codes for VBA and Qt which are equivalent). I need a start point to start learning it

                    mrjjM 1 Reply Last reply
                    1
                    • A alizadeh91

                      @mrjj Thanks, Could u give me an example (some codes for VBA and Qt which are equivalent). I need a start point to start learning it

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      @alizadeh91
                      Sadly its not just a 1 to 1 convert.

                      VBA:
                      Sub charObj()
                      Dim myChartObject As ChartObject
                      Set myChartObject = ActiveSheet.ChartObjects.Add(Left:=200, Top:=200, _
                      Width:=400, Height:=300)
                      End Sub

                      We can see it adds to ChartObjects of the active sheet. So we know it also has a collection and not
                      just the workbook.

                      in Qt we do
                      QAxObject *workbook = excel->querySubObject("Workbooks")->querySubObject("Add");
                      QAxObject *worksheet = workbook->querySubObject("Worksheets(1)");
                      Which gives us the sheet.

                      There should also be a way to get ActiveSheet like VBA.

                      A 1 Reply Last reply
                      2
                      • mrjjM mrjj

                        @alizadeh91
                        Sadly its not just a 1 to 1 convert.

                        VBA:
                        Sub charObj()
                        Dim myChartObject As ChartObject
                        Set myChartObject = ActiveSheet.ChartObjects.Add(Left:=200, Top:=200, _
                        Width:=400, Height:=300)
                        End Sub

                        We can see it adds to ChartObjects of the active sheet. So we know it also has a collection and not
                        just the workbook.

                        in Qt we do
                        QAxObject *workbook = excel->querySubObject("Workbooks")->querySubObject("Add");
                        QAxObject *worksheet = workbook->querySubObject("Worksheets(1)");
                        Which gives us the sheet.

                        There should also be a way to get ActiveSheet like VBA.

                        A Offline
                        A Offline
                        alizadeh91
                        wrote on last edited by alizadeh91
                        #15

                        @mrjj Ok, I've got it and from this I've found that I have to write below code to add a embedded chart in a worksheet:

                        worksheet->querySubObject("ChartObjects")->querySubObject("Add")
                        

                        But it gives following error:

                        QAxBase: Error calling IDispatch member ChartObjects: Member not found
                        

                        I wish there was some examples in web but there is nothing...

                        mrjjM 1 Reply Last reply
                        0
                        • A alizadeh91

                          @mrjj Ok, I've got it and from this I've found that I have to write below code to add a embedded chart in a worksheet:

                          worksheet->querySubObject("ChartObjects")->querySubObject("Add")
                          

                          But it gives following error:

                          QAxBase: Error calling IDispatch member ChartObjects: Member not found
                          

                          I wish there was some examples in web but there is nothing...

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #16

                          @alizadeh91
                          Well

                          I had luck with
                          QAxObject* test = workbook->querySubObject("ActiveSheet");
                          QAxObject* charts = test->querySubObject("ChartObjects");
                          QList<QVariant> f; f << 200 << 400 << 200 << 200;
                          QVariant ch = charts->dynamicCall("Add(int, int, int, int)", f );

                          Added Chart to first sheet

                          Now is issue how to get the chart to set it up.

                          Not sure what Add returns.
                          IF we could get handle to the new chart, rest of code be the same and it would be embedded.

                          A 1 Reply Last reply
                          1
                          • mrjjM mrjj

                            @alizadeh91
                            Well

                            I had luck with
                            QAxObject* test = workbook->querySubObject("ActiveSheet");
                            QAxObject* charts = test->querySubObject("ChartObjects");
                            QList<QVariant> f; f << 200 << 400 << 200 << 200;
                            QVariant ch = charts->dynamicCall("Add(int, int, int, int)", f );

                            Added Chart to first sheet

                            Now is issue how to get the chart to set it up.

                            Not sure what Add returns.
                            IF we could get handle to the new chart, rest of code be the same and it would be embedded.

                            A Offline
                            A Offline
                            alizadeh91
                            wrote on last edited by
                            #17

                            @mrjj I don't know why it gives that error that the member is not found (ChartObjects) :(

                            mrjjM 1 Reply Last reply
                            0
                            • A alizadeh91

                              @mrjj I don't know why it gives that error that the member is not found (ChartObjects) :(

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #18

                              @alizadeh91
                              Because it must be via ActiveSheet or else it dont know it , i think.
                              Or it dont know Add() that way.
                              That is the frustrating part. Finding out where it keeps the stuff you want.

                              A 1 Reply Last reply
                              1
                              • mrjjM mrjj

                                @alizadeh91
                                Because it must be via ActiveSheet or else it dont know it , i think.
                                Or it dont know Add() that way.
                                That is the frustrating part. Finding out where it keeps the stuff you want.

                                A Offline
                                A Offline
                                alizadeh91
                                wrote on last edited by
                                #19

                                @mrjj I've changed the code as below and this codes works:

                                QAxObject* excel = new QAxObject( "Excel.Application", 0 );
                                    QAxObject* workbooks = excel->querySubObject( "Workbooks" );
                                    QAxObject* workbook = workbooks->querySubObject( "Open(const QString&)", "D:\\test.xls" );
                                    QAxObject* sheets = workbook->querySubObject( "Worksheets" );
                                    QAxObject* sheet = sheets->querySubObject( "Item( int )", 1 );
                                    QAxObject* chart = sheet->querySubObject("ChartObjects(int)",1)->querySubObject("Chart");
                                

                                As seen, ChartObjects(int) has a member called 'Chart' and the code works. So it seems that ChartObjects is not defined by itself or something like that.

                                1 Reply Last reply
                                1
                                • mrjjM Offline
                                  mrjjM Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on last edited by mrjj
                                  #20

                                  Ah so ("ChartObjects(int)",1)->querySubObject("Chart");
                                  gives the first chart.
                                  Good work.
                                  Thank you for reporting back.

                                  A 1 Reply Last reply
                                  1
                                  • mrjjM mrjj

                                    Ah so ("ChartObjects(int)",1)->querySubObject("Chart");
                                    gives the first chart.
                                    Good work.
                                    Thank you for reporting back.

                                    A Offline
                                    A Offline
                                    alizadeh91
                                    wrote on last edited by
                                    #21

                                    @mrjj But still having problem with adding new embedded chart!!!

                                    mrjjM 1 Reply Last reply
                                    0
                                    • A alizadeh91

                                      @mrjj But still having problem with adding new embedded chart!!!

                                      mrjjM Offline
                                      mrjjM Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #22

                                      @alizadeh91

                                      Did you try the test code ?.

                                      It inserts embedded for me.

                                      QAxObject* test = workbook->querySubObject("ActiveSheet");
                                      QAxObject* charts = test->querySubObject("ChartObjects");
                                      QList<QVariant> f; f << 200 << 400 << 200 << 200;
                                      charts->dynamicCall("Add(int, int, int, int)", f );

                                      I didnt check if
                                      ("ChartObjects(int)",1)->querySubObject("Chart"); will give you that.

                                      From docs, the Add should return the chart object but I could not get it to cast to
                                      QAxObject* .

                                      A 1 Reply Last reply
                                      3
                                      • mrjjM mrjj

                                        @alizadeh91

                                        Did you try the test code ?.

                                        It inserts embedded for me.

                                        QAxObject* test = workbook->querySubObject("ActiveSheet");
                                        QAxObject* charts = test->querySubObject("ChartObjects");
                                        QList<QVariant> f; f << 200 << 400 << 200 << 200;
                                        charts->dynamicCall("Add(int, int, int, int)", f );

                                        I didnt check if
                                        ("ChartObjects(int)",1)->querySubObject("Chart"); will give you that.

                                        From docs, the Add should return the chart object but I could not get it to cast to
                                        QAxObject* .

                                        A Offline
                                        A Offline
                                        alizadeh91
                                        wrote on last edited by alizadeh91
                                        #23

                                        @mrjj I've changed sheet2->querySubObject("ChartObjects"); to sheet2->querySubObject("ChartObjects()"); and it worked

                                        1 Reply Last reply
                                        3
                                        • mrjjM Offline
                                          mrjjM Offline
                                          mrjj
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #24

                                          Super :)
                                          oh it must have "()" on.
                                          The syntax is pretty funky via the automation server.
                                          Good work.

                                          1 Reply Last reply
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