請問, 用listview加上imagelist時,可以顯示icon, 但是如果要像檔案總管一樣可以顯示縮圖, 要怎麼做呢? 用listview時, 若圖大大, 則vsIcon模式只會顯示圖之一角. 謝謝大家 gogowin

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gogowin

A simple way is making use if the SmallImages property of the ListView and assign an ImageList containing the resized images. Otherwise, you may need to write up you own OnDrawItem/OnDrawSubItem events (or OnCustomDrawItem/OnCustomDrawSubItem...etc).

問題重點是如何resize呢? 

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gogowin

引言:問題重點是如何resize呢? >< face="Verdana, Arial, Helvetica"> When adding image to image list at design time. You have options "Crop", "Stretch" and "Center" if the image's size is larger than the size defined for the image list, select "Stretch".

Unfortunately, I need to add images from directory at run time....

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gogowin

引言: Unfortunately, I need to add images from directory at run time.... >< face="Verdana, Arial, Helvetica"> Are you working on some kind of image viewer? Then I would recommend writing you own OnCustomDrawItem/OnCustomDrawSubItem for the list view in order to save resources needed to create and store the resized images.

Delphi 本身就 imagview 範例可供參考

謝謝William. 我已得到方向, 並解決了問題. 我不是做image viewer. 而是做一個影像處理軟體, 要計算或衡量尺寸並計算各類面積或角度等數值...    我用Tbitmap.canvas.stretchdraw() 來將圖形重新繪製後再放入imagelist裏就沒問題了.  太好了!多謝. 也謝謝

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gogowin