# $ K + GPD Editor Window
Each GPD editor window displays the contents of a single .gpd file. The editor window allows you to view, modify, and check the syntax of the .gpd file.
When the Minidriver Conversion Wizard creates a .gpd file, it inserts warning and error messages, where needed, as comments. You can locate these messages by searching for "Warning" or "Error". The messages identify entries you'll probably need to modify. The messages remain in the file until you delete them.
The keywords contained in GPD files are defined in the Windows 2000 DDK. Each GPD keyword begins with an asterisk. You can find GPD keywords in the DDK browser's index.
To open a .gpd file:
You can open a .gpd file using any of the following techniques:
•	In the Minidriver Workspace Window, double-click a .gpd file name (or right-click to use the file's context menu).
•	Select Open from MDT's File menu.
•	Double-click on the file's name in the Windows Explorer.
To edit a .gpd file:
After you have opened a .gpd file, you can edit it within the window's edit box. MDT's Edit menu provides Copy, Cut, Paste, Find, Replace and Go To options.
To find text within a .gpd file:
Type the text you are looking for in the toolbar's edit box, then click on the toolbar's N (Next) or P (Previous) button.
Alternately, you can select Find from MDT's Edit menu.
To go to a specific line within a .gpd file, select Go To from MDT's Edit menu, then type a line number in the pop-up window.
To check .gpd file syntax:
To check the syntax of the currently open .gpd file, do the following:
1.	Select the level of error reporting you'd like by using the File menu's Set Error Level option. Higher error level numbers cause more types of errors and warnings to be reported.
2.	Select Check Syntax from the File menu, or click on the toolbar button, or press F7.
Error and warning messages are displayed in the lower edit box. Some of these messages identify a line number within the .gpd file. If you click on one of these messages, the upper edit box will scroll to the referenced line.
To match braces, parentheses, and brackets:
Place the cursor next to any brace, parenthesis, or bracket character and press CTRL+]. The editor will attempt to find the matching brace, parenthesis, or bracket by searching either forward or backward.
To enable or disable editing aids
Click on Editing Aids in the Edit menu. This enables or disables the GPD editor's ability to assist you in specifying valid keywords and values.
Shortcut Keys
F1	Help.	
F3	Find.	
F4	Go to the next message in the error/warning list.	
Shift+F4	Go to the previous message in the error/warning list.	
F7	Check syntax.