flickering

[Konrad]

Hi

When I'am displaying form with
picturebox with large image first
displays caption bar with empty windows
and after secnd or two the picture box
with picture.
How to avoid this lazy displaying?
When program starts I'am using
opacity=0;
and in timer timer_tick
opacity=1;
AllowTransparency=false

and what do to during working of program and switching
windows. How to obtain speed display?
Maybe using WM_SETREDRAW and how to do that?

Thanks
Konrad

 

[Ying-Shen Yu[MSFT]]

Hi Konrad,

From your description, I understand your program is displaying a large
image, and the image repaints slowly.

First I'd like to check if this problem is related to the Graphics Card
Hardware Acceleration support.
What color-depth are you using when testing your program,if you are running
your programming under 32-bit color mode, you may try running it under
16-bit mode to see if the flicker is redued.

If the Problem persists under 16 bit color mode,
I'd like to know more about your program, did the flicker problem only
occur in that program?
I made a small program to test the flicker on my system, but it program
Would you have the flicker problem if you make a small test program?
If yes, could you send me a screen capture video to show the flicker
problem?
If not, maybe there is something affected the repainting speed in your
program.
Please let me know more information about your program.
Thanks!


Thanks!

Best regards,

Ying-Shen Yu [MSFT]
Microsoft community Support
Get Secure! - www.microsoft.com/security

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