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Directdraw image scaling distortion problem

Time:11-08

Thank you for the great god first

I recently in learning, directdraw when using the following function to display a picture of a big reduced, image is a little distortion
M_pddsFrontBuffer - & gt; Blt (& amp; RtDest m_pddsStoreBuffer, & amp; RtSrc DDBLT_WAIT, & amp; DDBLTFX);

And under the GDI, by setting for HALFTONE pattern after call StretchBlt to zoom in, the effect will be much better than the above use directdraw
PDC - & gt; SetStretchBltMode (HALFTONE);
PDC - & gt; StretchBlt (l, t, w, h, this, l, t, w, h, SRCCOPY);

So in directdraw is also what the same method, to control the quality of the image zooming

CodePudding user response:

Baidu search relevant keywords,

CodePudding user response:

reference 1st floor zhao4zhong1 response:
baidu search relevant keywords,
not to search

CodePudding user response:

refer to the second floor dk1st response:
Quote: refer to 1st floor zhao4zhong1 response:

Baidu search relevant keywords,
no search to the

https://www.baidu.com/s? Wd=directdraw % 20 halftone

CodePudding user response:

reference zhao4zhong1 reply: 3/f
Quote: refer to the second floor dk1st response:

Quote: refer to 1st floor zhao4zhong1 response:

Baidu search relevant keywords,
no search to the

https://www.baidu.com/s? Wd=directdraw % 20 halftone

The keyword search has been made before, find the results are not wanted

CodePudding user response:

https://www.baidu.com/s? Wd=directdraw E5 A9 BC E7 % % % % % 20% B0 9 E5 8 f % % % % b BE % E7%89% 87% E7 B1 A4 E5 % % % % 9 c % 9 f


Play your own subjective initiative,

CodePudding user response:

Could you tell me how to solve is????

CodePudding user response:

The 4 teachers with an der zhao, can be in this q, baidu had good? Won't you don't reply, threw baidu show your ability??

CodePudding user response:

Every day have no matter to baidu check a data, see the zhao four teachers in this speech, baidu promotion ambassador are you? Expert points is all to cheat?
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