Comments (2)
the VDU system is written to be similar to Acorn's VDU system. on an Acorn system when you changed screen mode, the colours get reset to their default values, i.e. black and white
preserving fg/bg colours would differ from this behaviour
you can clear the graphics area whilst preserving graphics FG and BG colours using VDU 16 (CLG
in BASIC)
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Ok, fair enough. I'll close this issue.
from agon-vdp.
Related Issues (20)
- Documentation for new screen modes added in VDP 1.03RC2 HOT 1
- Make vertical timing of 640x240 modes the same as 320x240 modes HOT 1
- VDU to get a keycode HOT 2
- Documentation for virtual keycodes
- [Feature request] a VDU command to change only a byte in a bitmap, and some other stuffs HOT 1
- vdu 25,80,x;y; do wrong triangles HOT 8
- PRINT TAB() should be relative to text viewport. HOT 1
- Feature Request: the ability to copy from screen/buffer to current bitmap HOT 3
- Help wanted - How to get audio status (audio command 1) ? HOT 5
- VDP crash on real Agon but not on the emulator sending bitmaps data HOT 2
- PLOT 69 does not set the current position. HOT 1
- Key up events rollover HOT 1
- Feature Request: class ProxyWaveformGenerator : public WaveformGenerator HOT 2
- Circle terminal position is incorrect. HOT 3
- [bug] Issue with equal/plus key on French keyboard HOT 2
- When using double-buffered modes, keyboard input is not visible HOT 3
- Feature request: expose the selected FG/BG colours HOT 5
- Agon locks up when POS and/or VPOS is used with VDU 31 HOT 2
- Leave firmware to Steve.
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