Accessing the message loop

How does one access the Windows Message Loop in a C# window.forms application? I have a graphics display application in which I would like to "step" through the graphical display (it is a binary tree visualiser and I would like to step through the tree as it is being drawn - node by node!) using a mouse click in the form. Something like this: Paint method { .... DisplayBinaryTree(rootnode); .... } DisplaBinaryTree { DrawNode(current); Wait until mouse is clicked DisplayBinaryTree(current.Left) DisplayBinaryTree(current.Right) } Can anyone tell me how to implement the line "Wait until mouse is clicked"? I assume that I have to get the mouse_clicked message off the message loop somehow, but I can't see any provision for that in C#.

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Andrzej Wegierski22y ago
Use semaphore (instance logical variable). Set it to true after paint. In mouse event check, if true and paint Your binary tree. Next set semaphore to false. Very simple, works without any loops, timers ...