Get button face color at runtime
lazarus / 39-Graphics

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Graham1 · 2024-07-28 02:20

I know the color of the button face is supposed to be clBtnFace but on
my PC that gives $F0F0F0. When I look at the actual color of my
buttons when I run my program it's $E1E1E1. I assume my theme is
messing things up.

How can I find the actual color used by the button face at runtime?

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Rizzz · 2024-08-01 09:34

To find the actual color used by the button face at runtime, you can
use the GetSysColor function in your code to retrieve the system color
for COLOR_BTNFACE. This will give you the color currently being used,
considering any theme or visual style applied to your system. Here's a
sample code snippet in C++:

Code: C  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i COLORREF
btnFaceColor = GetSysColor(COLOR_BTNFACE); This will return the actual
color being used, so you can compare it to the expected value.

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Graham1 · 2024-08-04 02:29

Thank you! With that information I was able to find that it's included
in LCLIntf, and there is an example as the "Show System Colors" button
in:

C:\<Lazarus folder>\examples\canvas_test

And that handles both Windows and Linux, I think.

Thanks again.