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Canvas context's stroke() makes transparent border, instead of fully opaque?


Canvas context's stroke() makes transparent border, instead of fully opaque?

By : Andrea Bettin
Date : November 17 2020, 11:52 AM
like below fixes the issue Canvas draws its lines straddling your pixel coordinate. So a lineWidth=1 vertical line at x=20 will be drawn from 19.5 to 20.5.
To help clarify your rectangle follow these 2 hints:
code :


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How to make a canvas component fully opaque in Flex 3?

How to make a canvas component fully opaque in Flex 3?


By : user2472507
Date : March 29 2020, 07:55 AM
hope this fix your issue First thought:
1) Are you using cacheAsBitmap? opaqueBackground is designed for use with cacheAsBitmap in order to improve rendering. If you just want to make something transparent, would alpha work better for you?
Fully transparent mask -> fully opaque widget

Fully transparent mask -> fully opaque widget


By : kkameq
Date : March 29 2020, 07:55 AM
This might help you QWidget::setMask(QBitmap) converts QBitmap to QRegion and calls QWidget::setMask(QRegion). QRegion produced by empty bitmap is empty. So using empty bitmap in setMask is equal to widget.setMask(QRegion()). Qt assumes that providing empty region means unsetting mask. This is reasonable because there is no other validity flag in QRegion besides isEmpty. QWidget::mask returns empty region when no mask is set according to documentation, so empty QRegion is apparently treated as a special value meaning that no mask is set.
In QWidget::setMask(QRegion):
code :
d->extra->mask = newMask;
d->extra->hasMask = !newMask.isEmpty();
Transparent texture not fully opaque

Transparent texture not fully opaque


By : Jay Vyas
Date : March 29 2020, 07:55 AM
hop of those help? I am trying to add a transparent texture to my particles, to get some blending. , You have two choices.
code :
particleSystem.sortParticles = true;
particleMaterial.alphaTest = 0.5; // or whatever number between 0 and 1 works best
Win32 C++ SetLayeredWindowAttributes is either fully opaque or fully transparent; nothing in between

Win32 C++ SetLayeredWindowAttributes is either fully opaque or fully transparent; nothing in between


By : Zipwire Testing
Date : March 29 2020, 07:55 AM
hope this fix your issue So I have a 2nd Window created within my program like: , Try to specify only LWA_ALPHA, not both LWA_COLORKEY and LWA_ALPHA
Glass (opaque/transparent) border around boxes?

Glass (opaque/transparent) border around boxes?


By : Robert_BM
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You can achieve an effect very close to this using pure CSS. This example uses a single element with an RGBA border colour and multiple box shadows to add the highlights and shadows.
Demo: http://dabblet.com/gist/2775781
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