Menu
Is there any way to set the style for the lineends for the TCanvas.LineTo method? It seems to default to rounded ends, which looks very bad for several lines in a row of different colours when Pen.Width is set to a large value (e.g. 9).
It looks like this (rounded ends):
********........******
**********........******
**********........******
********........******
(where * is e.g. blue and . is yellow)
It is even worse if the two outer lines are drawn after the middle line:
********........******
**********......********
**********......********
********........******
I'd like it to look like this (streight ends):
********........******
********........******
********........******
********........******
Pen does not seem to offer any setting for this and neither does the LineTo method. Is there maybe a windows API function I could call?
791
To draw a line on a canvas, you use the following steps: First, create a new line by calling the beginPath() method. Second, move the drawing cursor to the point (x,y) without drawing a line by calling the moveTo(x, y) . Finally, draw a line from the previous point to the point (x,y) by calling the lineTo(x,y) method.
The lineTo() method adds a new point and creates a line TO that point FROM the last specified point in the canvas (this method does not draw the line). Tip: Use the stroke() method to actually draw the path on the canvas.
Maybe ExtCreatePen helps. Check the PS_ENDCAP_* and PS_JOIN_* flags.
139
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
