share/insight1.0/help/watch.html - toolchains/skids - Git at Google

 <HTML>
 <HEAD>
 <TITLE>Watch Window Help</TITLE>
 </HEAD>
 <BODY>
 <H1>The Watch Window</H1>
 <img src="images/watch.png" alt="Watch Window Image" width=545 height=308 border=0>
 <H2>Overview</H2>

 <P>The Watch Window may be used to inspect and edit any expression, including
 global variables, static variables, local variables, function arguments,
 and registers. All expressions in scope are displayed with the expression in
 blue, the expression type in red, and the expression value in black.  When an
 expression value changes, it is displayed in green. Expressions that are not
 in scope are all gray.</P>


 <H3>Adding Watch Expressions</H3>
 <p>To add an expression to the Watch Window, simply enter
 the expression into the entry at the bottom of the window and press return
 or click the "Add Watch" button. The expression is validated and added to the
 Watch Window Display.</p>

 <P>To add an expression to the Watch Window from the
 <A HREF="source.html">Source Window</A>, use the
 "<A HREF="source.html#add_to_watch">Add to Watch</A>" option of the
 <A HREF="source.html#display_popup">Source Window Pop-up Menu</A>.</P>

 <P>Any legal expression may be added to the Watch Window, which will
 evaluate each of its expressions everytime the program runs. Be cautious
 adding expressions which cause assignments, such as "<CODE>i++</CODE>".</P>

 <P>Adding a register to the Watch Window can be advantages when debugging
 via a slow serial line. In this case, keeping the entire Register Window open
 may be inefficient. Consider adding the register to the Watch Window. Simply
 enter the name of the register preceded with a dollar sign ($) into the
 Entry. For example, to watch the PC register, enter "<CODE>$pc</CODE>" into
 the Watch Window Entry. The program counter is added to the Display.</P>

 <P>To cast pointers, simply enter the cast into the
 Watch Window Entry at the bottom of the window. Use the same syntax for the
 cast that the source file uses. If the source file uses C, the a simple
 cast of "<CODE>ptr</CODE>" of type "<CODE>void *</CODE>" can be cast to type
 "<CODE>my_struct</CODE>" by entering "<CODE>(my_struct *) ptr</CODE>" into
 the Entry.</P>

 <H3>Watch Display</H3>
 <p>The Watch Window Display consists of a scrolled listbox which contains all
 watch expressions, one per line. To use any of the functions of the Watch
 Window, use the left mouse button to select any element from the Display.</p>

 <P>Pointers, structures, and classes appear in the display with a small
 exapansion box before their names. To dereference
 pointers or view the members of classes or
 structures, click the closed expansion box (which appears as a small
 plus sign, "+") to "expand" the listing. The expansion box changes to a
 minus sign, "-", indicating that the display is now open. Pointers,
 structures and classes may be expanded recursively to allow multiple pointer
 derefernces and embedded structure viewing.</P>

 <P>The Watch Display updates after every execution of the program and
 highlights in green those expressions whose values have changed.</P>

 <P>The Watch Window will, by default, display all pointers and registers in
 hexadecimal and all other expressions in decimal. To change the display
 format for an expression, select the Format option from the pop-up menu.</P>

 <H3>Editing an Expression</H3>
 <p>To edit an expression, either double-click the left mouse button on the expression
 in the Display or select the Edit option from the popup-menu. To abort editing
 an expression's value, simply press
 the escape key on the keyboard. The expression's original value is restored.</p>

 <H3>Watch Pop-up Menu</H3>
 <p>The pop-up menu provides quick access to the functions of the Watch Window.
 To use the pop-up menu, click the right mouse button while over a variable.</p>
 <DL>
     <dt>Format<dd>Change the display format of the variable.</dd></dt>
     <dt>Edit<dd>Edit the variable's value.</dd></dt>
     <dt>Delete<dd>Remove the variable from the display.</dd></dt>
     <dt>Dump Memory<dd>Open a Memory Window with the variable's value as an aaddress.</dd></dt>
     <dt>Help<dd>Open this help page.</dd></dt>
     <dt>Close<dd>Close the Local Variables Window.</dd></dt>
 </DL>
 </BODY>
 </HTML>
	<HTML>
	<HEAD>
	<TITLE>Watch Window Help</TITLE>
	</HEAD>
	<BODY>
	<H1>The Watch Window</H1>
	<img src="images/watch.png" alt="Watch Window Image" width=545 height=308 border=0>
	<H2>Overview</H2>

	<P>The Watch Window may be used to inspect and edit any expression, including
	global variables, static variables, local variables, function arguments,
	and registers. All expressions in scope are displayed with the expression in
	blue, the expression type in red, and the expression value in black. When an
	expression value changes, it is displayed in green. Expressions that are not
	in scope are all gray.</P>


	<H3>Adding Watch Expressions</H3>
	<p>To add an expression to the Watch Window, simply enter
	the expression into the entry at the bottom of the window and press return
	or click the "Add Watch" button. The expression is validated and added to the
	Watch Window Display.</p>

	<P>To add an expression to the Watch Window from the
	<A HREF="source.html">Source Window</A>, use the
	"<A HREF="source.html#add_to_watch">Add to Watch</A>" option of the
	<A HREF="source.html#display_popup">Source Window Pop-up Menu</A>.</P>

	<P>Any legal expression may be added to the Watch Window, which will
	evaluate each of its expressions everytime the program runs. Be cautious
	adding expressions which cause assignments, such as "<CODE>i++</CODE>".</P>

	<P>Adding a register to the Watch Window can be advantages when debugging
	via a slow serial line. In this case, keeping the entire Register Window open
	may be inefficient. Consider adding the register to the Watch Window. Simply
	enter the name of the register preceded with a dollar sign ($) into the
	Entry. For example, to watch the PC register, enter "<CODE>$pc</CODE>" into
	the Watch Window Entry. The program counter is added to the Display.</P>

	<P>To cast pointers, simply enter the cast into the
	Watch Window Entry at the bottom of the window. Use the same syntax for the
	cast that the source file uses. If the source file uses C, the a simple
	cast of "<CODE>ptr</CODE>" of type "<CODE>void *</CODE>" can be cast to type
	"<CODE>my_struct</CODE>" by entering "<CODE>(my_struct *) ptr</CODE>" into
	the Entry.</P>

	<H3>Watch Display</H3>
	<p>The Watch Window Display consists of a scrolled listbox which contains all
	watch expressions, one per line. To use any of the functions of the Watch
	Window, use the left mouse button to select any element from the Display.</p>

	<P>Pointers, structures, and classes appear in the display with a small
	exapansion box before their names. To dereference
	pointers or view the members of classes or
	structures, click the closed expansion box (which appears as a small
	plus sign, "+") to "expand" the listing. The expansion box changes to a
	minus sign, "-", indicating that the display is now open. Pointers,
	structures and classes may be expanded recursively to allow multiple pointer
	derefernces and embedded structure viewing.</P>

	<P>The Watch Display updates after every execution of the program and
	highlights in green those expressions whose values have changed.</P>

	<P>The Watch Window will, by default, display all pointers and registers in
	hexadecimal and all other expressions in decimal. To change the display
	format for an expression, select the Format option from the pop-up menu.</P>

	<H3>Editing an Expression</H3>
	<p>To edit an expression, either double-click the left mouse button on the expression
	in the Display or select the Edit option from the popup-menu. To abort editing
	an expression's value, simply press
	the escape key on the keyboard. The expression's original value is restored.</p>

	<H3>Watch Pop-up Menu</H3>
	<p>The pop-up menu provides quick access to the functions of the Watch Window.
	To use the pop-up menu, click the right mouse button while over a variable.</p>
	<DL>
	<dt>Format<dd>Change the display format of the variable.</dd></dt>
	<dt>Edit<dd>Edit the variable's value.</dd></dt>
	<dt>Delete<dd>Remove the variable from the display.</dd></dt>
	<dt>Dump Memory<dd>Open a Memory Window with the variable's value as an aaddress.</dd></dt>
	<dt>Help<dd>Open this help page.</dd></dt>
	<dt>Close<dd>Close the Local Variables Window.</dd></dt>
	</DL>
	</BODY>
	</HTML>