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Bug 2733

Summary: BackImage: Transparency and size can be buggy
Product: VCL TeeChart Reporter: Vincent Dsn <vincent.martignoni>
Component: ChartAssignee: Steema Issue Manager <issuemanager>
Status: UNCONFIRMED ---    
Severity: normal CC: yeray
Priority: ---    
Version: 39.231109   
Target Milestone: ---   
Hardware: PC   
OS: Windows   
Chart Series: --- Delphi / C++ Builder RAD IDE Version: RAD 12 Athens
Attachments: demo project to reproduce the issue

Description Vincent Dsn 2024-07-18 08:11:07 EDT 
Created attachment 1076 [details]
demo project to reproduce the issue

BackImage transparency becomes black when angle <> 0 and when images is a scaled TWICImage (since v38).
The size of the displayed image is often wrong (sometimes smaller, sometimes bigger) when angle = 0 (since v39). When we change the angle the image has the rieght size.
Comment 1 Vincent Dsn 2024-07-18 08:24:18 EDT 
The image size has more bugs in HDPI apps.