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Larry J. Rutledge


About Me
I worked for Prestwood Software as a Delphi developer from 1997 through 2002. During that time I enjoyed working with Mike Prestwood and the other developers at Prestwood.



Knowledge Base Posts

  KB Article    

Larry J. Rutledge
1. Components 101: Form Size Limiting

Windows sends the WM_GETMINMAXINFO message when the user tries to resize a window either by clicking the maximize button or dragging the borders of the window. By creating a suitable message-response method, you can specify the minimum and maximum window sizes for that form.

Posted to KB Topic: Using Controls
11 years ago, and updated 10 years ago

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Larry J. Rutledge
2. Advanced Delphi: Resize Drop-down List

To resize the list box of a combobox, you merely need to send the Windows API message: CB_SETDROPPEDWIDTH to the combo box.

Posted to KB Topic: Using Controls
11 years ago, and updated 10 years ago
(2 Comments , last by Alyssa.P )

Article
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Larry J. Rutledge
3. TEdit OnChange events I have a form with two TEdit components on it. For the OnChange event for both, it clears the contents of the TEdit that is not changing. However, when clearing on TEdit the OnChange fires and clears the other TEdit, this then causes the OnChange in the other TEdit to fire. Fortunately, the second time the OnChange hits the original TEdit, it is already clear and nothing happens. How can I prevent the circular event firing?
Posted to KB Topic: Using Controls
11 years ago
(3 Comments , last by Azeem.A )

FAQ
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4. Create Round Windows

Use SetWindowRgn API call to make a round form. The SetWindowRgn function sets the window region of a window. The window region determines the area within the window where the operating system permits drawing. The operating system does not display any portion of a window that lies outside of the window region.

Simply use this function in the FormCreate event:

Posted to KB Topic: Using Data
11 years ago, and updated 11 years ago

Code
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Larry J. Rutledge
5. Delphi: Windows Shell Extensions How to add functionality to the existing Windows™ shell.
Posted to KB Topic: Delphi for Win32
16 years ago, and updated 12 years ago

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Larry J. Rutledge
6. Detecting Windows SafeMode

Use Windows API GetSystemMetrics with SM_CLEANBOOT parameter to determine how Windows was started.

Posted to KB Topic: Delphi for Win32
11 years ago, and updated 10 years ago

KB Post
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7. Delphi Gazette, Volumn 1, Issue 11, Nov 1998 Prestwood Delphi Gazette Archive
11 years ago, and updated 11 years ago

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Larry J. Rutledge
8. Zooming main forms under Windows 95 Windows 95 adds several visual elements and actions that enhance the user's perception of how the system operates (editor's note: This also applies to Windows 98 and NT 4.0). One such enhancement is window zoom animation, which displays an animated, shrinking window that disappears into the window's icon on the Taskbar when you minimize the application. However, if you've run a Delphi 2.0 (editor's note: This applies to Delphi 3 and 4 as well) application on a Windows 95 system, you may have noticed that instead of seeing the standard zoom animation, the window simply disappears. In this article, we'll explain why this happens and how you can work around this disappearing act to enable zoom animation for your Delphi 2.0 applications.
Posted to KB Topic: Using Controls
11 years ago, and updated 11 years ago

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