Graphics32

Appearance

Member Filters
Show Inherited
Show Protected
Show abstract
GR32_Backends🞂IPaintSupportInterface

IPaintSupport

Interface for backends handling control repainting and invalid rect transfer to TCanvas.

Declaration ​

pascal
IPaintSupport = interface(IUnknown)

Description ​

IPaintSupport handles repainting a TBitmap32 buffer onto a target GUI control's TCanvas.

Methods ​

ImageNeeded ​

pascal
procedure ImageNeeded;

Ensures that backend pixmap and surface resources are valid and allocated prior to rendering.

CheckPixmap ​

pascal
procedure CheckPixmap;

Verifies backend pixel format integrity and synchronization.

DoPaint ​

pascal
procedure DoPaint(ABuffer: TBitmap32; AInvalidRects: TRectList; ACanvas: TCanvas); overload;
procedure DoPaint(ABuffer: TBitmap32; const AInvalidRect: TRect; ACanvas: TCanvas); overload;

Blits specified invalid rectangular region(s) of ABuffer onto the destination ACanvas.