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A_vs (2005-07-28 10:36) [0]При установке опций [loOwnerDrawVariable,loMulticolumn] перестает работать onDrawItem. В чем причина?
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ECM © (2005-07-28 11:18) [1]В чем причина? ...Так устроен List Box Control Win32...
loOwnerDrawVariable - предназначен для отрисовки строк высота которых может быть разной. При отрисовке в несколько колонок - это не применимо...Поэтому здесь, для правильной работы OnDrawItem, надо использовать сочетание опций [loOwnerDrawFixed,loMultiColumn].MSDN:
LBS_OWNERDRAWFIXED
Specifies that the owner of the list box is responsible for drawing its contents and that the items in the list box are the same height. The owner window receives a WM_MEASUREITEM message when the list box is created and a WM_DRAWITEM message when a visual aspect of the list box has changed.
LBS_OWNERDRAWVARIABLE
Specifies that the owner of the list box is responsible for drawing its contents and that the items in the list box are variable in height. The owner window receives a WM_MEASUREITEM message for each item in the combo box when the combo box is created and a WM_DRAWITEM message when a visual aspect of the combo box has changed.
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Dodfr (2005-07-28 11:20) [2]I don"t read russian but online translators sometimes help me to understand general question.
Why use Ownerdraw permit you to 100% manage drawing routine so why add MultiColumn that is a drawing option managed by system when your are not in multicolumn (I never tested multicolumn but ownerdraw should inactivate any other option that modify inside drawing if the listbox) ?
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a_vs (2005-07-28 11:38) [3]Большое спасибо всем, действительно, помогло!
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Dodfr (2005-07-28 12:00) [4]seems ECM posted its answer at 11:18 when I was writing mine and post at 11:20 :-)
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