Was soll wie viel bringen? Ein Image ist einfach nicht dafür konzipiert, dass man es zum Zeichnen benutzt:
Zitat:
Use TImage to display a graphical image on a form.
Zitat:
TPaintBox provides a canvas that applications can use for rendering an image.
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Use TPaintBox to add custom images to a form. Unlike TImage, which displays an image that is stored in a bitmap, icon, or metafile, TPaintBox requires an application to draw the image directly on a canvas. Use the OnPaint event handler to draw on the paint box’s Canvas, the drawing surface of the paint box.