M!Image working sample transparent gif's

[mina]

Hi @ll,
still working with TD 3.1 and need to place some transparent gif's in a form
to indicate the efficiency of solar panels.

solarpanels.png

Has someone a working sample with MImgLoadFromFile, MImgSetTranspColor and finally show the gif?

Thanks in advance,
Mina

[Dave Rabelink]

Something like this?

MImage_GIFTransp_TD31.zip

[mina]

Dear Dave,

Your sample works fine but the transparent custom control can't be placed over other pictures
and that is exactly my target.
(s. modified app)
Any other option?

BR
Mina

[Dave Rabelink]

So to have the exact requirement.

The initial image in your startpost, is that the situation you need to create?
So that you have a house image where dynamically the roof-tiles are colored?

If that is the case, I would create an image where the rooftiles have a fixed color value.
Based on the needs, you replace the fixed color with another color using

Code: Select all

bOk = MImgSubstColor( hImage, nOldColor, nNewColor )

Or when the template image has a fixed palette, change the rooftiles (which are colored with a specific palette index) using

Code: Select all

bOk = MImgSetPaletteColor( hImage, nIndex, nColor )

Then display the image with the replacement colors.

Or is there a different requirement?

[Dave Rabelink]

An example:

The house image (png) has 2 fixed colors for the solar panels.
Using the buttons you can replace the colors.

MImage_SubstColor_TD31.zip

[mina]

The second sample was a great help.

Appreciate your efforts and support!
Mina