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Oracle foreign keys do not always work
I’ll show you how to break them, and how to fix them Im not talking about DISABLED or DEFERRED or NOVALIDATE foreign keys – No, this is different. This is for a specific scenario – a multi column foreign key based on one or more optional columns You can insert a row with junk values…
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FREE Monitor Viewer for Windows. View Multiple External Monitors
MonitorViewer is free Windows software that lets you view another external monitor in a window. Useful for doing presentations so you can see the output that is on the projector screen when using extended desktop mode, rather than mirror mode. Now you dont have to turn around to see the projector screen Up to 6 monitors…
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AutoHotKey (AHK) New Line In Macro Output
There are multiple ways to send a New Line to AutoHotKey output.I will show one technique that has worked well for me This example is triggered when you type in MyMacroText1 (not case sensitive) and it then sends the text including new lines to the current program You can do it all on one line…
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AutoHotKey (AHK) Adjust Sound Volume using Shift Mouse Up / Down
Bonus Tip. Modifier Keys ! Alt^ Ctrl+ Shift# Windows
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Delphi FMX – click through form. HitTest not available
Create a Delphi FireMonkey (FMX) form that the user can click through
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Examples of Devart UniDac connecting to Oracle database
Examples of Devart Unidac connecting to an Oracle database using Oracle Client and direct connection (no Oracle Client)
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Separator lines for project files in Delphi IDE
Add separator lines to your Delphi IDE project files list.
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Convert Delphi VCL window handle (HWND) To String
Simple example of converting a window handle (HWND data type) to a string in a Delphi VCL program cardinal(vMyWindowHandle).ToString
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Disable Delphi TTimer during the OnTimer event
When writing a Delphi TTimer event, I often disable the timer and re-enable it at the end of the event. If you dont do this, the OnTimer event could fire again before you have finished processing it.
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Increase / decrease (Zoom) the Delphi IDE font
Download my free software to add hotkeys to the Delphi IDE to increase and decrease the font size in the code editor.
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Windows File Manager Extension by Scott Hollows
This is a free add-on for Windows File Manager that provides some useful hot keys and features.
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FireMonkey Panel tricks – Panel Color and Transparent Panels
Change the color of a Delphi FireMonkey panel or make a FireMonkey panel transparent.
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Delphi Performance Tuning – Creating 500 Panels on a Form
I needed to create 500 panels on a form for a game that I was assisting another person with … and Delphi was choking. It was taking 20 seconds to do this. Not cool. We had to find a way to speed it up. This is what we did …
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Delphi 2D controls in 3D (FireMonkey) – presentation 1st March 2017, Brisbane Australia
I am doing a remote presentation this week on “Displaying and Animating 2D FireMonkey controls in 3D”. This will be at the Australia Delphi User Group’s meeting in Brisbane
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Fix object is not visible in Delphi’s Live Bindings Designer
I recently hit a problem where an object on a form was not visible in Delphi’s Live Bindings Designer. Ill show you how I fixed that
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Popup menu for a Delphi Firemonkey form
Unlike VCL forms, Delphi FireMonkey forms do not have a PopupMenu property. So how can you show a popup menu when the user clicks the Right Mouse Button ? You have to code it yourself and its pretty easy to do. The tricky bit is converting the X/Y position from the forms local co-ordinate system to global co-ordinates. Ill show…
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Immediate TTimer to emulate PostCreate / PostOnCreate event in Delphi
Learn how to create the equivalent of an PostCreate / PostOnCreate event that executes just after the form’s OnCreate event has fired. To do this, we will use an “Immediate Timer”
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Z Order of Controls in Delphi FireMonkey
Get and set the Z Order of controls at runtime in Delphi FireMonkey.
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Copy an Oracle ApEx page between repositories
Learn how to copy pages between applications in different ApEx repositories. Oracle ApEx allows you to export pages, but you can only import them into the same application in the same repository. If you try to import into another application or another repository you will get an error. This page was exported from a different application…
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Z Order of Controls in Delphi VCL
Get and set the Z Order of controls at runtime in Delphi VCL.
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Color gradient in Delphi FireMonkey
Introduction to color gradients in Delphi FireMonkey.
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Multi Line Popup Hints for Delphi VCL and FMX
Learn how to setup multi line popup hints in Delphi for any type of control for both VCL and FireMonkey. This uses native Delphi code. You don’t need to hack the forms’s DFM text file
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Using a reserved word as an identifier (variable name, class name etc) in Delphi
AKA Silly Delphi Party Tricks #1 Is it possible to use a reserved word as an identifier ? For example – I want to name my variable or class “BEGIN” because, ummm, well I dont know just because. Yes you can. Simply prefix the the name with an ampersand “&” escape character like this var &begin : integer; // begin…
Scott Hollows – One Line At A Time
Technical tips for Oracle and Delphi
Scott Hollows - One Line At A Time 