XnView Software

Anybody had any success creating and saving semi-transparent PNG, TIFF or any other image file supporting alpha chanels in GflAx?

I have this GIF image, I transform it to RGB and then try to replace several colors with white transparency 0xFFFFFFFF:
I need then to draw this picture on top of another one using alpha blend, but since DrawImage can draw only images stored on disk, I have to save my image first. But after examining the saved file I can't find any alpha information in it, regardles to say, the DrawImage draws it totaly opaque.

rozi wrote:Anybody had any success creating and saving semi-transparent PNG, TIFF or any other image file supporting alpha chanels in GflAx?

I have this GIF image, I transform it to RGB and then try to replace several colors with white transparency 0xFFFFFFFF:

Code: Select all

pic.ChangeColorDepth(AX_ToTrueColors);

pic.ReplaceColor(0x606060, 0xffffffff, 1);
pic.ReplaceColor(0x464646, 0xffffffff, 1);
pic.ReplaceColor(0xffffff, 0xffffffff, 1);

I need then to draw this picture on top of another one using alpha blend, but since DrawImage can draw only images stored on disk, I have to save my image first. But after examining the saved file I can't find any alpha information in it, regardles to say, the DrawImage draws it totaly opaque.

Yes, it's a problem because AX_ToTrueColors convert the picture in 24bits, not in 32bits. So perhaps a new type AX_To32bits??