QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
PgDrawImagemx not updating screen |
| Ref. No. |
QNX.000009918 |
| Category(ies) |
Development |
| Issue |
We are receiving and calling PgDrawImagemx() about every 200ms, but the screen does not always update.
If we do nothing, it updates to a new image about once every five or six seconds. If we damage a corner with PtDamageExtent, the image updates every second. If we damage the whole image size (336x210 pixels on a 1024x768 screen), the damaged extent for the next image clears the image about the time it gets updated, and we see very little.
Is there a way to get it to redraw each image every single time?
|
| Solution |
There is a way to redraw each image by doing a PgFlush() after the PgDrawImagemx(). It will cause an immediate flush of the graphics buffer.
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