Hi,

I want to know how to make a TImage in DELPHI/pascal transparent. I do know that there is a property that allow you todo this but thats not what im after. I want to beable to make the transparancy have levels e.g level 0 is fully visable, level 5 is half visable and level 10 is transparent/invisable.

Just if you want to know i use delphi 7 or dev-pascal

Thx,
Tan_ZaQuote from: Tan_Za on September 28, 2010, 12:42:43 AM

Hi,

I want to know how to make a TImage in delphi/pascal transparent. I do know that there is a property that allow you todo this but thats not what im after. I want to beable to make the transparancy have levels e.g level 0 is fully visable, level 5 is half visable and level 10 is transparent/invisable.

Just if you want to know i use delphi 7 or dev-pascal

Thx,
Tan_Za

The basic TImage is capable of displaying a PNG image and alpha-blend-it to whatever is BEHIND it. You just need to add the "pngimage" unit to the uses clause of your form. You didn't mention the version of Delphi you're on: Delphi 2010 has this unit, but I have no idea with what version of Delphi they started shipping it. For Delphi 7 I know for sure you'll need to FIND the open source "pngimage".

If you need to do this when the user moves in and out of your control, CONSIDER caching the state images in bitmaps: it will be faster at runtime and you can use a single TImage that shows the current image, you don't need two overlapping TIMage controls.

The information that you gave me was good but it was more based around making forms alpha blend not images or objects