[Mono-bugs] [Bug 80546][Nor] New - Mouse does not seem to be captured properly

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Changed by georgegiolfan at yahoo.com.

http://bugzilla.ximian.com/show_bug.cgi?id=80546

--- shadow/80546	2007-01-18 09:24:30.000000000 -0500
+++ shadow/80546.tmp.25403	2007-01-18 09:24:30.000000000 -0500
@@ -0,0 +1,67 @@
+Bug#: 80546
+Product: Mono: Class Libraries
+Version: 1.2
+OS: other
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Windows.Forms
+AssignedTo: toshok at ximian.com                            
+ReportedBy: georgegiolfan at yahoo.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Mouse does not seem to be captured properly
+
+Description of Problem:
+A Form does not seem to capture the mouse when you left-click on it.
+
+Steps to reproduce the problem:
+1. Compile and run the following program.
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+class TestForm : Form {
+    static void Main() {
+        Application.Run(new TestForm());
+    }
+    public TestForm() {
+        Controls.Add(new TestControl());
+    }
+    class TestControl : Control {
+        public TestControl() {
+            BackColor = Color.Red;
+            Size = new Size(100, 100);
+            Cursor = Cursors.AppStarting;
+        }
+        protected override void OnMouseEnter(EventArgs e) {
+            base.OnMouseEnter(e);
+            BackColor = Color.Blue;
+        }
+        protected override void OnMouseLeave(EventArgs e) {
+            base.OnMouseLeave(e);
+            BackColor = Color.Red;
+        }
+    }
+}
+2. Place the mouse cursor over the window client area, but not over the 
+child control (red area).
+3. Press and hold the left button.
+4. Move the cursor over the child control.
+
+Actual Results:
+The cursor changes, and the OnMouseEnter and OnMouseLeave methods are 
+called.
+
+Expected Results:
+Those things happen only after the button is released.
+
+How often does this happen? 
+Always (on SVN version on Windows).
+
+Additional Information:
+It may have something to do with the fact that the MWF version of 
+ContainerControl.WndProc only calls OnMouseDown for WM_LBUTTONDOWN.