Hi fellow-programmers

I am using left-handed orthogonal projection... on the screen it looks like this:
.................+Y
..................|
..................|
..................|
-X _______0.0 ______ +X
..................|
..................|
..................|
.................-Y
I want normal screen coordinate which should look like this:

0.0___________ +X
.|
.|
.|
.|
+Y

What matrix do i need to convert this.
I was thinking of flipping the Y axis and translating the origin to the upper-left corner of the screen, but things aren't that simple

e.g when i use text, it is visible in the ortho view but not in my screen coordinate system. Propably because flipping Y, makes the mesh normals flip

Does someone know a way of converting to screen-coordinates... is it possible :?

Thank you in advance

P.S i cant ASCII draw something with much spaces... this stupid editor removes them