Hi,
I just wonder if the te_Height returned by TextExtent() is really the size in pixels of a text displayed on a RastPort ?

Considering I have a window of 132 pixels height with a Text whose TextExtent.te_Height is 128.
If I move my text to y = 130, it should be vertically centered, no ?

In the following test, I try to vertically center a text of 128 pixels height in a 132 pixels height window (window height returned by window->Height and by SysMon).

I have loaded and scaled an image

Hello everyone,

i'm having problems trying to compile a small program thad used to compile under update6.

Now trying to compile i get this error: 'BMATags_RGBFormat' was not declared in this scope

Any hint?

Thank you

Hello,

in my image viewer I need to blit a source bitmap S onto a destination one D, in a way that S transpares D that is behind (transparency effect). Say that neither S nor D necessarily have transparent areas.

How to achieve it? Hardware acceleration possible?

Thanks, regards

Hello,
for my work in progress application, I need to rely on fast hardware accelerated blitting operations.

I am currently evaluating the following functions, I wonder which are up to the task:

1) BltBitMapRastPort()
2) BltBitMapTags()
3) CompositeTags()

Any other functions that I am not taking in consideration?

The target is AmigaOS 4.1 Update 1.

Thanks, regards