I have to draw arrows & dashed lines in a picture control. Just like we can do that in word or paint etc. I need to do the same using the mouse and drag the line/arrow till I realease the mouse. I am able to this for a normal line ( it works perfectly) but when I have to draw an arrow or a line I am stumped.
Unfortunately, you have to code your own VIs to do these. It's not going to be too complicated if you manage the animation (while dragging the mouse) with a normal line and draw the dashed line/arrow at the end (when releasing the mouse button). In both cases, you'll know start/end line coordinates, thus having the line equation. For arrows, you need to calculate the angle in order to draw it properly. A simpler solution may be an activeX control with these features (Paint like) already integrated or to develop one in Visual Basic (at least it will be simpler to manage mouse events and drawing tasks).
Let's hope somebody already did it and wants to share.
