Sidorakh / window-colorkey

window-colorkey

Window transparency packaged in a DLL (Windows only) C++ source is located in ./transparent-window as a VS2019 project.

Exposed functions:

window_set_transparency

Parameter	Type	Description	Notes
color	Constant.Color	Colour to make transparent	Used by WINDOW_TRANSPARENCY_MODE.COLOR_KEY
alpha	Real	Sets the alpha value of non-chroma keyed portions of the window	Used by WINDOW_TRANSPARENCY_MODE.ALPHA
mode	Real	Sets whether the color and/or alpha arguments are used	Both WINDOW_TRANSPARENCY_MODE values can be used to create a bitmask so that the color and alpha params are used together

Returns: none

window_set_always_on_top

Parameter	Type	Description
on_top	Boolean	Whether or not to set the window to be on top

Returns: none

window_get_error

Parameters: none

Returns: Real

Notes

Only use colours with equal red and blue values for the colour key. I'd recommend c_lime or a shade of grey. If you don't, some weird effects can happen, such as not being able to click through a transparent part of the window or being able to click through an opaque part of the window depending no the colours you use.

window_set_always_on_top may not work at the start of the game, so you may need to wait a few frames before you can successfully use it.